ACCU-600 SPIN / RELIEF REEL MOWER GRINDER · The grinder is equipped with a low voltage relay which is factory preset at 100 VAC. If the power supply line does not deliver 100 VAC

1

This book consists of two manuals:

The OPERATORS MANUAL which contains all theinformation on operating and doing routine dailymaintenance on this equipment.

The ASSEMBLY and SERVICE MANUAL which isused by the maintainence department to install theequipment and to do all maintenance except routinedaily maintenance.

Setting the Standard With theWorld's Most Valued Grinders.

ACCU-600SPIN / RELIEF

REEL MOWER GRINDER

2

3 6007951 (7-02)

WARNINGYou must thoroughly read and understand this manualbefore operating the equipment, paying particularattention to the Warning & Safety instructions.

ACCU-600SPIN / RELIEF

REEL MOWER GRINDER

OPERATORSMANUAL

4

SAFETY INSTRUCTIONS

Safety Awareness Symbols are inserted into thismanual to alert you to possible Safety Hazards . When-ever you see these symbols, follow their instructions.

The Caution Symbol identifies special instructionsor procedures which, if not strictly observed, couldresult in damage to or destruction of equipment.

The Warning Symbol identifies special instructionsor procedures which, if not correctly followed, couldresult in personal injury.

13. MAINTAIN GRINDER WITH CARE. Followinstructions in Service Manual for lubrication andpreventive maintenance.

14. DISCONNECT POWER BEFORE SERVICING,or when changing the grinding wheel.

15. REDUCE THE RISK OF UNINTENTIONALSTARTING. Make sure the switch is OFF beforeplugging in the Grinder.

16. USE RECOMMENDED ACCESSORIES. Consultthe manual for recommended accessories.Using improper accessories may cause risk ofpersonal injury.

17. CHECK DAMAGED PARTS. A guard or otherpart that is damaged or will not perform itsintended function should be properly repaired orreplaced.

18. NEVER LEAVE GRINDER RUNNINGUNATTENDED. TURN POWER OFF. Do notleave grinder until it comes to a complete stop.

19. KNOW YOUR EQUIPMENT. Read this manualcarefully. Learn its application and limitations aswell as specific potential hazards.

20. KEEP ALL SAFETY DECALS CLEAN ANDLEGIBLE. If safety decals become damaged orillegible for any reason, replace immediately.Refer to replacement parts illustrations in ServiceManual for the proper location and part numbers ofsafety decals.

21. DO NOT OPERATE GRINDER WHEN UNDER THEINFLUENCE OF DRUGS, ALCOHOL, ORMEDICATION.

1. KEEP GUARDS IN PLACE and in working order.

2. REMOVE WRENCHES AND OTHER TOOLS.

3. KEEP WORK AREA CLEAN.

4. DON'T USE IN DANGEROUS ENVIRONMENT.Don't use Grinder in damp or wet locations.Machine is for indoor use only. Keep work area welllit.

5. KEEP ALL VISITORS AWAY . All visitors shouldbe kept a safe distance from work area.

6. MAKE WORK AREA CHILD-PROOF withpadlocks or master switches.

7. DON'T FORCE THE GRINDER. It will do the jobbetter and safer if used as specified in this manual.

8. USE THE RIGHT TOOL. Don't force the Grinderor an attachment to do a job for which it was notdesigned.

9. WEAR PROPER APPAREL. Wear no looseclothing, gloves, neckties, or jewelry which mayget caught in moving parts. Nonslip footwear isrecommended. Wear protective hair covering tocontain long hair.

10. ALWAYS USE SAFETY GLASSES .

11. SECURE YOUR WORK. Make certain that thecutting unit is securely fastened with the clampsprovided before operating.

12. DON'T OVERREACH. Keep proper footing andbalance at all times.

5

IMPROPER USE OF GRINDING WHEEL MAY CAUSEBREAKAGE AND SERIOUS INJURY.

DO1. DO always HANDLE AND STORE wheels in a

CAREFUL manner.

2. DO VISUALLY INSPECT all wheels beforemounting for possible damage.

3. DO CHECK MACHINE SPEED against theestablished maximum safe operating speedmarked on wheel.

4. DO CHECK MOUNTING FLANGES for equaland correct diameter.

5. DO USE MOUNTING BLOTTERS whensupplied with wheels.

6. DO be sure WORK REST is properly adjusted.

7. DO always USE A SAFETY GUARDCOVERING at least one-half of the grinding wheel.

8. DO allow NEWLY MOUNTED WHEELS to runat operating speed, with guard in place, for atleast one minute before grinding.

9. DO always WEAR SAFETY GLASSES or sometype of eye protection when grinding.

DON'T1. DON'T use a cracked wheel or one that HAS

BEEN DROPPED or has become damaged.

2. DON'T FORCE a wheel onto the machine ORALTER the size of the mounting hole - ifwheel won't fit the machine, get one that will.

3. DON'T ever EXCEED MAXIMUMOPERATING SPEED established for thewheel.

4. DON'T use mounting flanges on which thebearing surfaces ARE NOT CLEAN, FLATAND FREE OF BURRS.

5. DON'T TIGHTEN the mounting nutexcessively.

6. DON'T grind on the SIDE OF THE WHEEL(see Safety Code B7.2 for exception).

7. DON'T start the machine until the WHEELGUARD IS IN PLACE.

8. DON'T JAM work into the wheel.

9. DON'T STAND DIRECTLY IN FRONT of agrinding wheel whenever a grinder is started.

10. DON'T FORCE GRINDING so that motorslows noticeably or work gets hot.

AVOID INHALATION OF DUST generated by grinding and cutting operations.Exposure to dust may cause respiratory ailments. Use approved NIOSH orMSHA respirators, safety glasses or face shields, and protective clothing.Provide adequate ventilation to eliminate dust, or to maintain dust level belowthe Threshold Limit Value for nuisance dust as classified by OSHA.

Grinding is a safe operation if the few basic rules listed below are followed. Theserules are based on material contained in the ANSI B7.1 Safety Code for "Use, Careand Protection of Abrasive Wheels". For your safety, we suggest you benefit fromthe experience of others and carefully follow these rules.

SAFETY INSTRUCTIONS

6

W e are committed to:

Providing superior customer support, training,and service.

Manufacturing the highest quality products at anunequaled value.

Setting the industry standard by investing intechnological product innovation.

Manufacturing products specifically designed tomaintain original equipment manufacturers'specifications.

Interacting with and supporting all originalequipment manufacturers.

Setting the Standard With the World's Most Valued Grinders.

7

This machine is intended for reel mower reel blade grinding ONLY. Anyuse other than this may cause personal injury and void the warranty.

To assure the quality and safety of your machine and to maintain thewarranty, you MUST use original equipment manufactures replacementparts and have any repair work done by a qualified professional.

ALL operators of this equipment must be thoroughly trained BEFOREoperating the equipment.

Do not use compressed air to clean grinding dust from the machine. This dustcan cause personal injury as well as damage to the grinder.

GETTING TO KNOW YOUR GRINDER

SPECIFICATIONS

Traversing Switches .................................................................... Solid state, non-contacting proximity switchesCarriage Travel ...............................................................................................................................................45"Overall Width ..................................................................................................................................................98"Overall Height .................................................................................................................................................80"Overall Depth ..................................................................................................................................................50"Weight ...................................................................................................................................................... 880 lbsBase Construction ............................................... Precision Machined heavy duty reinforced welded steel baseCarriage Rails ................................................................................................ Precision Ground, Hardened SteelGrind Head Motor ........................... 3/4 HP at 60 HZ, 5/8 HP at 50 HZ, 3450 RPM at 60 HZ, 2875 RPM at 50 HZElevator ..................................................................................................................................... 400 lbs. capacitySpin Drive ............................................................ Reversible variable speed 0-400 RPM DC Gear Motor 1/5 HpAuto Traverse ............................................... Ball bearing threadless roller drive with built in overload protectionGrinding Head ..................................... 90 degrees rotatable head with pin lock locations for grinding bedknivesRail covers ........................................................................................................................... Telescoping bellows

Adjustable Reel Clamping Mechanismsfor ease of installation. Two chain visegrips included to secure any size roller.

Independently Controlled Variable SpinDrive for optimum grinding performance.

Positive Vertical and Horizontal ReelAdjustments for fast alignment of the reelin the machine.

Dial Indicator Setup Gauge to align reelswith accuracy up to .001".

Accessible Control Panel with indepen-dent switches for grinding motor, carriagetraverse with variable speed control, spindrive with variable speed control, and asafety stop button.

Positive Infeed and Height Adjustmentfor exact positioning of the reel and mea-sured metal removal.

Electro-Magnetic Traversing Switch foreasily adjustable traversing length.

FIG. 1

8

GETTING TO KNOW YOUR GRINDER (Continued)

Symbols for Readoperators manual, wearsafety glasses anddisconnect power beforeservicing.

Symbol for sharp object whichwill cause serious injury.

Symbol for caution relating to RPMof the motor and minimum saferated RPM of the grinding wheel.

Symbol identifying a panel, cover,or area as having live electricalcomponents within.

Symbol to keep visitors a safedistance away from the grinder.

Symbol for hot surfacewhich could cause burns.

Symbol that operators and peoplein the close proximity must wearrespirators or have adequateventilation systems.

Symbol for hearingprotection required whenoperating this machine

DAILY MAINTENANCE BY THE OPERATOR

On a daily basis, clean the grinder by wiping it down.On a daily basis, inspect the grinder for loose fasteners or components and tighten.Contact your company's Maintenance Department if damaged or defective parts are found.

DO NOT USE COMPRESSEDAIR TO CLEAN GRINDING DUSTFROM THE GRINDER.

The grinder is equipped with a low voltage relay whichis factory preset at 100 VAC. If the power supply linedoes not deliver 100 VAC power under load, the relaywill open and trip out the starter. If this occurs, yourpower supply line is inadequate and must be correctbefore proceeding further with the grinder.

Low Voltage Relay

9

GETTING TO KNOW YOUR GRINDER (Continued)GETTING TO KNOW YOUR MACHINE

The following is an explanation of the machinecomponents you will be using when setting up reelsto grind on your new Spin Grinder. You shouldfamiliarize yourself with each part as this grinder hasbeen engineered to spin and relief grind almost everytype and make of reel mowers available today. Anadjustment of the various fixtures will be necessaryfor different types of reels.

OVERHEAD MOWER CLAMP ASSEMBLY

Each overhead mower clamp assembly consists oftwo rectangular bar clamps (top and bottom), whichalso contain adjustable holding fixtures into which isplaced the mower clamps. These clamps will bepositioned on the overhead square bar as shown inFIG. 2 and FIG 3. They are designed to lock intoplace and not move during the grinding procedure.Included are two sizes of clamp lips, normally thesmaller will be used.

REEL HUB SUPPORT

The reel hub support consists of a lower mountingbracket that fits over the square tooling mounting barand two threaded locking screws. Attached to this isthe upper "V" bracket that cradle the reel hub whenin position. There are three verticaladjustments on this fixture, but will normally be usedin the upper hole position. See FIG. 4.

These brackets can be mounted on the squaremounting bar with offset either forward or backwards,but the normal position will be with the "V" centeredover the bar or with the offset facing the back of themachine. The hold-down swing arm has an upperand lower mounting position depending on mowerhub size.

CENTER MOUNTING BRACKETS

The centers mounting brackets consist of astationary center bracket and an adjustable centerbracket. The stationary bracket will normally be usedon the left hand side of the mounting bar when facingthe reel loading position. These centering fixturesare used on greens mowers or any reel that does nothave a hub that can fit into the "V" bracket.See FIG. 5.

FIG. 5

FIG. 4

FIG. 2

FIG. 3

Long ThreadedKnob Assembly

Top PortionClamp Rod

Clamp Lips Bottom Portion

Clamp RodHandwheel Assembly

10

GETTING TO KNOW YOUR GRINDER (Continued)THE HARD KNOBS ON THE SQUAREBAR MUST BE VERY TIGHT OR THEREEL CAN LOOSEN CAUSING POORGRIND QUALITY. KNOBS CAN BEADDITIONALLY TIGHTENED WITHAN ALLEN WRENCH TO ENSUREMAXIMUM LOCKING POWER.

ROLLER SUPPORTSThere are two roller supports that are mounted to thesquare mounting bar so that the "V" faces the back ofthe machine as pictured. See FIG. 6.

There are four long set screws on these brackets whichare used to hold the extender plates when it is neces-sary to move mower roller back further to help exposethe drive nut in the reel. These set screws will also beused to attach the vice grip chain clamps when reelsare in position. See FIG. 7.

REEL GUIDE FINGERSThere are two reel guide fingers included with yourgrinder. They are used to relief grind reels after thereel has been spun ground. The wider factory mountedfinger will normally be used, See FIG. 8 & 9, but onreels where there is not enough room between bladesor reel to end frame clearance, the stamped narrowfinger will have to be used. See FIG. 10.

At the factory, the finger is installed with the high pointof the finger positioned at the left hand corner of thegrinding wheel for a normal helix reel, viewed from therelief finger side. It might be necessary on reels thathave a reverse helix to reposition the support finger.When using the stamped thin finger it is necessary todress the grinding wheel so that the high point of thefinger is positioned where the grinding wheel makescontact with the reel.

End View of the ReelGrinder Finger & Support

Vice Grip Chain Clamps

FIG. 6

FIG. 7

FIG. 8

FIG. 9 FIG. 10

11

GETTING TO KNOW YOUR GRINDER (Continued)DRESSING STICKThe included dressing stick is used to dress thegrinding wheel when it loads up or glazes over.Normal spin grinding will dress the wheel auto-matically, but hand dressing could be necessarywhen relief grinding.

TRAVERSE ACTUATOR RELEASEThe actuator that drives the grinding carriage leftand right can be released to allow manual move-ment of the grinding carriage. The actuatorrelease arm is located at the front of the carriageunder the infeed handwheel. See FIG. 11 andFIG. 12. Rotate the release arm clockwise 1/2turn to release actuator and counterclockwise 1/2turn to engage actuator.

PROXIMITY SENSORSThe Spin Relief Grinder is equipped with proximitysensors to change the traversing directions.These are adjustable by loosening the star knoband sliding them along the rail and retightening tocontrol traverse distance. See FIG. 13.

Actuator Engaged

Actuator Released

Proximity Sensor

FIG. 13

FIG. 12

FIG. 11

12

CONTROL PANEL COMPONENT IDENTIFICATIONReview the following control panel knob descriptionsbefore preceding on with the instructions.

TRAVERSE SPEED KNOB:Controls the feet per minute travel of the carriage andgrinding head. Adjusts from 0-35 feet per minute.

SPIN DRIVE DIRECTIONAL SWITCH:(Forward/Backwards):Controls the direction of rotation of the spin drive unit.

THE MOTOR MUST COME TO ACOMPLETE STOP BEFORE CHANGINGDIRECTIONS. IF THE MOTOR DOESNOT COME TO A COMPLETE STOP,SERIOUS DAMAGE TO THE CONTROLMAY RESULT. BYPASS OF THESWITCH CENTER HESITATIONPAUSE MAY RESULT IN DAMAGE TOTHE CONTROL.

SPIN DRIVE SPEED KNOB:Controls the revolutions per minute of the spin driveunit. Adjusts from 0-400 RPM.

START BUTTON (Green):This button acts as a reset or system start button afterthe emergency stop button has been pushed.

ANY SWITCHES IN THE ONPOSITION WILL IMMEDIATELYSTART WHEN THE STARTBUTTON IS PUSHED.

EMERGENCY STOP BUTTON (Red):This button will totally shut down all power to the machine.To restore power, pull up on the button and press the startbutton

PUSHING THE EMERGENCYSTOP BUTTON DOES NOTSTOP ALL POWER TO THEGRINDER. POWER IS STILLDELIVERED TO THE INFEEDSIDE OF THE MAGNETICCONTACTOR. DISCONNECTTHE CORD AT THE WALLOUTLET BEFOREPERFORMING SERVICE.

GETTING TO KNOW YOUR GRINDER (Continued)

Stop Button(Red)

Spin DriveOn/Off Switch

Grinding WheelOn/Off SwitchCarriage Traverse

On/Off Switch

Spin Drive Speed Knob

Spin DriveDirectional Switch

Traverse SpeedKnob

Start Button(Green)

FIG. 13

SPIN DRIVE ON/OFF SWITCH:Controls the electrical power to the spin drive unit.

GRINDING WHEEL ON/OFF SWITCH:Controls electrical power to the grinding head motor.

CARRIAGE TRAVERSE ON/OFF SWITCH:Controls electrical power to the carriage traverse.

13

SAFETY INSTRUCTIONS

PLEASE TAKE SPECIAL NOTE OF THE FOLLOWING WARNING DECALSLOCATED ON THE CONTROL PANEL AND WINCH OF THE MODEL 600.

--WARNING--FOR YOUR OWN SAFETY READ

ASSEMBLY AND OPERATING MANUALBEFORE OPERATING.

1. Always use safety glasses and ear protection.2. Do not wear gloves, neckties, loose clothing, etc.3. This machine operates with a large amount of hot

sparks. Do not operate near flammables.4. Stay clear of grinding wheel contact area when

grinding. Always stay clear of all rotating andmoving parts.

5. Insure adequate dust control before operation.6. Only properly trained personnel should operate

the machine. Keep all visitors a safe distancefrom the machine.

7. Be certain that the cutting unit is securelyfastened with the clamps and handles providedbefore operating.

8. Do not ever exceed maximum operating speedmarked on the grinding wheel. (Read grindingwheel safety section in your manual before grinding.)

9. Disconnect your machine from the main powersource before performing any adjustments,mechanical servicing or electrical servicing.

10. When machine is in automatic cycle, do not leavethe work area without turning off power.

11. Keep all guards in place and in good repair.12. Before operating, inspect the machine for loose,

damaged, or missing parts. If found, repair orreplace. Remove all tools from operating area.

SEE PAGE 3FOR GRINDING

WHEEL SAFETY.

--WARNING--

1. Lifting winch capacity 400 lbs. maximum.2. Always have the lifting hooks securely

attached and balanced on the cutting unitbefore lifting.

3. Stand well clear of the cutting unit whenwinching into position. Guide with extendedarms only.

4. The winch is equipped with a safetyratchet. Do not defeat or override thissafety feature.

5. Read warning label on winch handle andthe assembly and operating manualbefore using the winch.

14

OPERATING INSTRUCTIONSPREPARE MOWER FOR SHARPENINGPreparation of the reel prior to sharpening. It is recom-mended that the reel to be sharpened is thoroughly cleaned.Remove wheels and bed bar, if possible from the reel. Allbedknives must be ground when reels are sharpened.Inspect, adjust and/or replace any worn or damaged bear-ings. Make sure reel bearings are adjusted properly so thereel turns easily by hand.

REELS WITH EXCESS TENSION ON THEBEARINGS WILL BE EXTREMELYDIFFICULT TO SPIN GRIND AND COULDCAUSE DAMAGE TO THE REEL OR THESPIN DRIVE MECHANISM ON YOURGRINDER. NO MORE THAN 25 IN LBS.MAXIMUM TORQUE LOAD TO ROTATETHE REEL IS ALLOWED OR DAMAGE TOTHE SPIN DRIVE COULD OCCUR.

REELS GROUND WITH BEARINGS WHICHHAVE WEAR AND/OR FREE PLAY WILLNOT HOLD DIAMETER, CONE SHAPE, ORSTRAIGHTNESS SPECIFICATIONS.

INITIAL SET UP OF REEL SUPPORTSA. On fairway mowers with exposed hubs, you will use the

"V" reel hub supports. Normally they will be positionedin the top two holes of the lower supports with the offset"V" facing the rear of the machine. See FIG. 15.

B. With fairway mowers without exposed hubs ornormally all greens mowers, you will use the centersmounting brackets. They are mounted with theoffset facing the back of the machine and mountedto the center holes in the lower support. See FIG. 16.

FIRMLY TIGHTEN ALL LOCKINGKNOBS BEFORE GRINDING. ANYLOOSENESS WILL ADVERSELYAFFECT GRINDING QUALITY. KNOBSCAN BE ADDITIONALLY TIGHTENEDWITH AN ALLEN WRENCN TO INSUREMAXIMUM LOCKING POWER.

NOTE: Because of the many different reels availablethe exact position of either the "V" bracket or thecenters brackets to the lower support can be adjustedto three different height settings and two offset positions.

FIG. 15

Centering Pin FIG. 16

Centering Bracket

15

OPERATING INSTRUCTIONS (Continued)INITIAL SET UP OF SUPPORTS (Continued)"V" BRACKET SET UP

On reels with exposed hubs where you will be usingthe "V" brackets, measure the distance from theoutside of the hubs and subtract one inch. Determinethe middle of the square mounting bar, by use of thewinch cable. Then place a "V" bracket 1/2 that dis-tance on the left side of the mounting bar and securelyfasten--use both locking knobs.

NOTE: Tighten the side locking knob first so thebracket is forced against the mounting bar. Thentighten the bottom bracket. See FIG. 17.

Now place a "V" bracket on the right side of the mount-ing bar the same distance from the centerpoint, butloosely attach as it might have to be moved when reelis lifted into place.

CENTERS BRACKET SET UP

When mounting reels with no exposed hubs, centerswill be used to hold the mower unit. See FIG. 18. Tomount, measure the outside distance of the mowerframe. Using the centerpoint of the square mountingbar position the fixed centering bracket 1/2 that dis-tance on the left side and securely fasten.

Then place the adjustable centering bracket thatdistance plus 1/4" on the right side of the mounting barand loosely fasten. It may be necessary to move thisbracket when lifting reel into place even though it canbe adjusted. The adjusting cone should be retractedas far as possible as it will be easier to secure reelswhen in place.

FIRMLY TIGHTEN ALL LOCKINGKNOBS BEFORE GRINDING. ANYLOOSENESS WILL ADVERSELYAFFECT GRINDING QUALITY.KNOBS CAN BE ADDITIONALLYTIGHTENED WITH AN ALLENWRENCH TO INSURE MAXIMUMLOCKING POWER.

INITIAL SET UP OF ROLLER SUPPORTS

The roller support brackets should be placed 6 to 8"inside the reel supports with the "V" facing the back ofthe machine and securely fastened with both lockingknobs. The "V's" have an offset so they can be in-stalled high or low depending on the reel. See FIG. 19.

Cable

Locking Knob

Locking Knob

1/2 Distance

1/2 Distance

FIG. 17

FIG. 18

FIG. 19

16

OPERATING INSTRUCTIONS (Continued)LIFTING REEL INTO POSITION WHEN USINGTHE "V" MOUNTING BRACKETS

Position the reel behind the grinder on the floor so thefront of the mower faces towards the front of themachine. Hook the reel elevator spreader bar onto thereel. The clamps on the bar should be spaced evenlyalong the mower, so they do not slip or slide as themower is being raised. See FIG. 20.

THE OPERATOR SHOULD BEPOSITIONED AWAY FROM THEREEL. DO NOT STANDUNDERNEATH THE REEL AS IT ISBEING RAISED. GUIDE REEL ATARMS LENGTH.

Slowly raise the reel by cranking the winch handle withthe left hand and steadying the reel with the right hand.Your right arm should be extended during the liftingoperation--this will help keep the operator away fromunder the mower.

NOTE: The winch has a spring loaded handle thatautomatically actuates a brake when the handle isreleased. The winch clicks as it is being raised whenthis brake is engaged.

When the hub of the reel has been raised above thetop of the "V" bracket slowly position the left side of thereel into the bracket and lower until you make contactwith the bracket.

Now reposition the right "V" bracket if necessary andlower the reel completely into both brackets. Securelytighten the right bracket using both locking knobs.

NOTE: On reels that have a square or hexagonshaped hub make sure that the surface of the hub isagainst the flat machined surface of the "V" bracket.

When the reel is correctly positioned in the V-bracket,swing the clamping handles into place and firmly lockin place. See FIG. 21.

NOTE: The clamping handles have two mountingpositions for large and small hubs.

NOTE: Unless the elevator hooks interfere with thereels ability to spin, leave the elevator hooks andspreader connected to the reel with slight tension onthe wire cable.

Clamp Handle

Vise Grip Chain Clamp

FIG. 21

FIG. 20

17

OPERATING INSTRUCTIONS (Continued)LIFTING REEL INTO POSITION WHEN USINGCENTER BRACKETS

Position reel as when using the "V" brackets andattach elevator spreader bar. Slowly raise the reel intoposition and insert the fixed centering pin into a prede-termined hole in the reel frame. While holding the reelfirmly against the fixed centering pin, raise or lower thereel so the adjustable centering bracket can be movedand the cone inserted in a corresponding hole in theopposite side of reel frame. Now very firmly tightenboth locking knobs on the adjustable bracket and thentighten the adjustable centering pin locking knob. SeeFIG. 22

Make sure that the spin drive can be attached to thereel at this time. You are furnished with two extensionplates that can be mounted to the roller braces that willmove the reel 2" back if more clearance is necessary.

The spin unit attaches to a drive nut located under acover in the outer housing of the reel. Remove thecover at this time to insure that the spin drive unit willconnect to the reel. This is the same drive nut that isused for backlapping. Do not connect at this time justmake sure that the connections are close enough toattach at a later time.

FIRMLY TIGHTEN ALL LOCKINGKNOBS BEFORE GRINDING. ANYLOOSENESS WILL ADVERSELYAFFECT GRINDING QUALITY.KNOBS CAN BE ADDITIONALLYTIGHTENED WITH AN ALLENWRENCH TO INSURE MAXIMUMPOWER.

THE ADJUSTABLE CENTER MUSTBE FIRMLY TIGHTENED INTO THEREEL, BUT EXCESSIVE FORCE CANDISTORT THE REEL FRAME CAUSINGBINDING AND POOR QUALITY.

Adjustable Center Knob

Lock Knob

FIG. 22

18

OPERATING INSTRUCTIONS (Continued)SECURING ROLLER TO ROLLER BRACES

There are two (2) roller supports that are mounted tothe square mounting bar so that the "V" faces the backof the machine as pictured in FIG. 24A.

There are four (4) long set screws on these bracketswhich are used to hold the extender plates when it isnecessary to move mower roller back further to helpexpose the drive nut in the reel. These set screws willalso be used to attach the chain vise clamps whenreels are in position.

Position the roller braces so the reel roller is centeredon the two (2) braces and firmly lock in place.

NOTE: On some reels the "V" grooves of the rollersupport will be positioned on top of the support bar.This application is used primarily for green mowers.See FIG. 24B.

If extender plates are necessary to move reel backfurther, simply pull reel back out of the way and slideextender plate onto both long socket head set screwsand tighten down with 3/8-16 nuts and 3/8lockwashers. See FIG. 24C.

MAKE SURE THAT THE ELEVATORCABLE IS ATTACHED TO THE REELAND THAT SOME TENSION IS ONCABLE BEFORE PULLING REELBACK.

When the reel roller is positioned correctly in the rollerbrace, wrap one of the chain vise clamps around theroller, and around the stud on the roller brace. Firmlytighten and repeat this step with the other chain viseclamp around the other roller brace. See FIG. 23.


Roller Brace Stud

Vise Chain Clamps Support Bar

FIG. 24CFIG. 24BFIG. 24A

FIG. 23

19

ATTACHING THE OVERHEAD CLAMPING ARMS

You are furnished with two sizes of clamping lips,determine which size is appropriate for the reel you aregrinding. Normally the smaller size is used.

Loosen the two (2) screw handles on each overheadclamp and move them to where the overhead clamprods with clamping lips can be attached to the reel.This can be a mounting bolt on the reel or the reelcross bar. Tighten the clamping lips to the mower,then securely tighten the two (2) locking handles oneach overhead clamp. See FIG. 25 and FIG. 26.

DO NOT TIGHTEN THE SLIDEBAR CLAMP WHERE RODS AREINSERTED INTO THE LOWER PARTOF THE CLAMP UNTIL REEL HASBEEN ALIGNED.


OPERATING INSTRUCTIONS (Continued)

Slide Bar Clamp

Overhead Clamps

FIG. 25

Long ThreadedKnob Assembly

Top PortionClamp Rod

Clamp RodHandwheel Assembly

FIG. 26Clamp Lips Bottom Portion

20

OPERATING INSTRUCTIONS (Continued)ATTACHING THE VARIABLE SPEED SPINDRIVE UNIT TO THE REEL

When spin grinding, the reel should turn in the samedirection as the grinding wheel. See FIG. 27. Thenormal position for the spin drive unit is on the rightside of the square mounting bar when viewing from themowing unit loading position of the machine.

Before positioning the spin drive unit, familiarizeyourself with the available adjustments and coupler/drive assemblies.

KNOB A--Adjusts the scissor bar to move the unit up and down.KNOB B (2 EACH)--Allows the spin unit to be loosened and moved in and out.KNOB C & D--Allow the spin assembly to be loosened from thesupport bar frame and moved side to side.

When positioning the spin unit it will be necessary tocomplete several of the above adjustments to properlyalign the spin unit to the reel.

A. Rubber Sleeve Coupler: This is placed in thecorresponding flange coupler already mounted inthe spin drive shaft.

B. Drive Coupler Assembly: This is mounted to therubber coupler.

C. Adapter Sleeve: Connects the rubber coupler tothe square drive adapter.

D. Square Drive Adapter: This is inserted into thedrive coupler adapter and should be able to bemoved approximately 2". It will be necessary to

move this when attaching reel to spin drive unit. Itis then inserted into any 1/2" square drive socket.This square shaft has a groove machined into iton the opposite end of the snap ring. This grooveis there to advise that you have reached themaximum extension of the square drive shaft. Ifyou cannot connect to the reel without extendingpast this groove, then the spin unit must berepositioned on the tooling bar (knobs C & D above).

DO NOT EXTEND SQUARE SHAFTPAST GROOVE, INSTEAD REPOSITIONSPIN UNIT.

Rubber CouplerSquare Drive Adapter

Socket

Adapter SleeveDrive Coupler Adapter

Knob DKnob CKnob BKnob A

FIG. 27

FIG. 28

FIG. 29

21

OPERATING INSTRUCTIONS (Continued)NOTE: The 1/2" square drive socket that is places onthe reel when spin grinding is NOT included with thegrinder. You must purchase this from an appropriatelocal supplier of tools.

The following procedures will make setting up the spindrive unit easier.

1. Move spin drive unit close to the reel. Align theshaft on the spin drive with the drive nut on reel bycompleting the necessary adjustments discussedon the previous page.

2. Now slide the spin drive unit approximately 7" fromthe reel drive coupling point and securely fasten tothe square mounting bar tightening both lockingknobs.

3. Place the proper 1/2" square drive socket on thereel drive nut and then insert the square driveshaft into the socket. Place the adapter sleeveover the drive shaft and insert the drive coupleradapter assembly into it. Finally place the rubbercoupler onto the drive coupler adapter. See FIG. 30.

4. By holding the square drive shaft firmly into positionwith your left hand you will be able to move theother components to the right and insert therubber coupler into the flange on the spin driveunit. When this is done tighten the set screw withthe supplied 1/8" T-handle hex key on the adaptersleeve to hold all parts in place.

5. Finally re-adjust the spin drive unit if it is not inalignment.

NOTE: It is not necessary to have perfect alignmentbut it must be close enough so that the coupler re-mains engaged and that excess torque is not appliedto the reel.

Rubber CouplerSquare Drive Adapter

Socket

Adapter SleeveDrive Coupler Adapter

Spin Drive Unit

Square Mounting Bar

Spin Drive Scissor Bars FIG. 30

FIG. 31

22

In most cases, it is recommended to leave thespreader bar and chains hooked up to the reel asan added safety precaution. The cable should bewinch tight to insure the chain, hook and spreaderbar will not become engaged with the reel duringsharpening.

REMOVING SPREADER BAR FROM REEL

If the hooks will not clear the spinning reel, thenremove the spreader bar and hooks from the reel.Place hooks over the top channel on the elevatorand crank up excessive slack. See FIG. 32.

DIAL INDICATOR SET UP FIXTURE

The dial indicator set up fixture is designed to bequickly mounted into position and/or quicklyremoved.

The fixture is mounted to the front left corner of thegrinding head assembly as shown in FIG. 33.

When the fixture is not in use, it is quickly removedand can be stored in the hole in the tool tray asshown in FIG. 34.

Attach Fixture withthis Screw Knob

FIG. 33

FIG. 34

FIG. 32


23

OPERATING INSTRUCTIONS (Continued)REEL ALIGNMENT USING THE DIALINDICATOR SET UP FIXTURE

A. Mount the set up fixture into position on the leftfront side of the grinding head assembly. SeeFIG. 33.

B. Generally it is preferred to have both overheadclamp rod adjusting knobs (See FIG. 36.) loose toallow the mower assembly which is mounted onthe mower support bar to move freely when doinghorizontal and vertical adjustments. Due to theconfiguration of some mower assemblies thiscannot always be done. Some mowing units relyon the overhead clamp rods to support the unitand give rigidity. In these cases, the overheadclamp rod on the non-moving end of the mowersupport bar (right side from operator position)must be tight with the movable end (left side) onlyoverhead clamp rod loose.

The overhead clamp rods will generally be usedas described below:1. If the mowing unit is clamped in the V-brackets

and the ground roller is clamped with chainvice clamps, then both overhead clamp rodadjusting knobs can be loose.

2. If the mowing unit is mounted in centers andthe ground roller is clamped with the chain viceclamps, then generally both of the overheadclamp rod adjusting knobs can be loose. Theexception is when mounted in centers and withthe ground roller clamped, because the geometrydoes not offer enough stability or rigidity, thenthe overhead clamp rod on the fixed end (rightside in the operator's position) should be kepttight.

3. If the mowing unit is mounted in centers andonly being stabilized by the overhead clamprods, then the clamp rod on the fixed end mustbe kept tight.

C. Loosen the two locking knobs on the pivot assemblyon the left side of the square mounting bar so thatit can be adjusted in both the vertical andhorizontal plane. See FIG. 35.

Vertical AdjustingScrew

HorizontalLocking Knob

VerticalLocking Knob

Horizontal AdjustingScrew

FIG. 35

FIG. 36

Overhead ClampRod Adjusting Knob

24

OPERATING INSTRUCTIONS (Continued)ALIGNING REELS IN THEVERTICAL PARALLELISM PLANE

A. Move the grinding head assembly until the set upfixture is approximately 1" from the right side of thereel. Lock the Knob A within approximately 1/4" ofcenter shaft of the reel. See FIG. 39.

B. Raise the indicator slide casting on the verticalsupport so that the indicator rod can be extendedover the center shaft of the reel. See FIG. 37.

C. Lower the indicator slide by turning the verticalfine adjustment Knob B until the alignment rodlightly touches the top of the reel center shaft.See FIG. 41.

D. Pull rod back and lock Knob C. See FIG. 39.Traverse to the other side of reel, same distancefrom end. Loosen Knob C and extend alignmentrod.

E. If the left side is lower than the right, turn thevertical adjusting screw in the pivot assemblyclockwise raising the mounting bar and the reeluntil the center shaft of the reel lightly touches theextended indicator rod. See FIG. 35.

Alignment Rod

Top of Carrier ShaftVerticalParallelsim

Knob AKnob BKnob C

Knob B

FIG. 41

FIG. 40

FIG. 39

FIG. 38

FIG. 37

25

OPERATING INSTRUCTIONS (Continued)VERTICAL ALIGNMENT (Continued)

F. Take note of the knob so you know where you arestarting from. See FIG. 43. Now turn the verticaladjusting screw 1 more revolution. This 1 revolutionis to compensate for the fact that as you adjust theleft side, the right side is also moving at a ratioedamount. This should almost align your reel in thevertical parallelism plane. See FIG. 43.

G. Move the alignment fixture back to the right handside of the reel and readjust the alignment rod sothat it lightly touches the top of reel center shaft.

H. Move is back to the left side to make sure the reelis in correct vertical position. If not, move verticaladjustment handle up or down so that it justtouches alignment rod on both sides. When itdoes, no further alignment is necessary.

I. If the left side of the reel is found to be higher thanthe right, lower the mounting bar and reel untilalignment rod lightly touches the top of the reelcenter shaft and then turn the vertical adjustingscrew an additional 1 revolution. This 1 revolutionis to compensate for the fact that as you adjust theleft side, the right side is also moving at a ratioedamount. This should line the reel up accuratelyon both sides. Then continue with proceduresfound in "G" and "H."

J. Now lock the vertical adjusting screw locking knob.See FIG. 43.

NOTE: This alignment is not as critical as the horizontalplane, but care should be taken on all reel set ups.The accuracy need only be approximately .010".

NOTE: The pivot end of the support bar is pinned tothe frame permanently. The adjustable end can beadjusted independently both vertically and horizontally.

CAREFULLY REVIEW THE CORRECTIDENTIFICATION OF THE LOCKINGKNOBS IN FIG. 43 MAKE CERTAINYOU ARE LOCKING AND UNLOCKING THE CORRECT KNOBS.

Alignment Rod

FIG. 42

FIG. 43

Vertical AdjustingScrew

HorizontalLocking Knob

VerticalLocking Knob

Horizontal AdjustingScrew

26

OPERATING INSTRUCTIONS (Continued)ALIGNING REELS IN THEHORIZONTAL PARALLELISM

THIS IS A CRITICAL SET UP ANDCARE SHOULD BE TAKEN WHENMAKING THESE ADJUSTMENTS. IFREEL IS OUT OF POSITION IN THEHORIZONTAL PLANE, IT WILL BEGROUND CONE SHAPED. SEE FIG. 48.

A. Move set up gauge on the right hand side of reelapproximately 1" from the end. See FIG. 45.

B. Lower the indicator slide casting on the verticalsupport so the indicator rod can make contact withthe center of the reel shaft within approximately1/8" and lock Knob A. See FIG. 39. Center shaftshould be clean and free of rust where rod makescontact. Now fine adjust using Knob B until at thecenter of the center shaft of the reel. See FIG. 41.

C. Now loosen Knob D on the indicator stop bar.Holding the indicator rod firmly against the reelshaft, move the indicator stop bar back, until nocontact is made with the indicator rod plunger.Now move indicator stop bar forward until contactis made and then an additional 1/2". This will setthe plunger at about its midpoint and allowing it tomove in both directions. See FIG. 47.

D. Now set the outer dial indicator to the "0" position.Read and note the position of the smaller (.100)dial. You must know this reading when setting upthe other side. Pull back and lock with Knob C.See FIG. 39.

E. Move the alignment gauge to the left side of thereel carefully retracting the indicator rod so as notto damage or change setting. Set indicator rod onthe same position on the reel as on the other side,that is 1" from the end and centered on the shaft.See FIG. 46. Now read the dial indicator todetermine the distance the reel is out of position.

NOTE: Because the set up gauge is mounted to thecarriage, you can unlock the actuator drive system andtraverse manually from end to end or you can use theauto traversing drive by setting the pot to a slowerspeed and powering from end to end.

When you pull the indictor rod back, there is a wingscrew ("C") to snug up so you do not have to hold therod in the back position.

Alignment Rod

HorizontalParallelismInside Reel of Shaft

Outside ofCarrier Shaft

T Knob

Indicator Stop Bar

Indicator Rod Plunger

Indicator Rod

1/32" FIG. 47

FIG. 46

FIG. 45

FIG. 44

27


ALIGNING REELS IN THEHORIZONTAL PARALLELISM (Continued)

F. To adjust reel position first determine thedirection the reel has to move for alignment.The direction that the reel will have to bemoved can be determined by pulling back onthe dial indicator stop bar and if the dial movesback to the "0" position you will have to movethe reel towards you. If that cannot be donethe reel will have to be moved away from you.

There are two adjusting steps for final positioning ofthe reel as follows:

1. With the reel set gauge still in the left handside of the reel, turn the horizontal adjustingscrew (FIG. 43) in the direction required tomatch the initial indicator reading on theright hand reel position. See FIG. 46.

2. Now travel farther by half the amountalready traveled.

The reason for this is that the square mounting barpivots on one end and is adjusted on the oppositeend. Anytime the adjusting end is moved to changethe left side dimension, the right side dimension isalso changing at a ratio to the left side. By overcompensating at the adjusting end you will compen-sate for this movement and get the reel alignedmuch faster.

28

OPERATING INSTRUCTIONS (Continued)ALIGNING REELS IN THEHORIZONTAL PARALLELISM (Continued)

G. Now move the set up stand back to the right side of the reel.Set indicator rod on the same spot you used the first timeand reset large dial on "0". Make sure you read the settingon the small scale and note. Then proceed with paragraph"E" & "F" again. This should give final adjustment. Whenyou have done this procedure a few times you will find thisprocedure will become very easy.

IT IS ESSENTIAL THAT CARE IS TAKENWHEN SETTING THE REEL UP IN THEHORIZONTAL POSITIONS IN ORDER TO GRINDIT INTO A CYLINDER SHAPE. ANYMISALIGNMENT WILL CAUSE YOU TO GRINDINTO A CONE. SEE FIG. 53.

I. When the horizontal parallelism has been adjusted to within.003" end to end, tighten the horizontal adjustment lockingknob and both overhead clamp adjusting knobs. See FIG. 43.When tightening the knob it is very important that you havethe dial indicator located at that side of the reel and watch itas you tighten. It must not move in the tightening process.After both knobs are tight, recheck alignment.

KNOBS CAN BE ADDITIONALLY TIGHTENED WITH AN ALLEN WRENCH TO INSURE MAXIMUM LOCKING POWER.

29

OPERATING INSTRUCTIONS (Continued)CHECKING REEL FOR CONE SHAPE,REEL ROUNDNESS, AND STRAIGHTNESSOF REEL OUTSIDE DIAMETER.

BEFORE GRINDING--A. Before storing the set up gauge, it is very

effective to use it to check the ungroundedreel to determine the amount the reel isconical in shape and which end has the largerdiameter. See FIG. 48. Start with the set upgauge at the right end of the reel. Loosen thewing nut on the indicator stop bar, holding theindicator rod firmly against one blade. SeeFIG. 49. Pull the indicator stop bar back untilit clears the plunger then advance it forwarduntil it contacts the plunger and advances it 1/2inch further. Lock in place. This sets theplunger at its midpoint and allows adequatemovement in both directions. Set outer dial atzero and note position of pointer on small dial.

B. Now move it to the left side of reel and indicatethe same blade. From the reading determinethe amount the reel is cone shaped. Thisalso determines high point for grinding.Grinding of a reel must always start at thehigh point.

AFTER GRINDING--A. After grinding a reel, check the roundness on

each end of the reel and center before removingground reel. See FIG. 49. Loosen the wingnut on the indicator rod firmly against oneblade. Pull the indicator stop bar back untilthere is a 1/32" gap between it and the setscrew. This is to permit rotation of the reelblades to ride on the domed anvil only. SeeFIG. 50. At each location (left, right andcenter) turn the reel by hand and observe theindicator variations. All readings should bewithin .002".

B. Straightness of reel outside diameter--Takeindicator readings at both ends of reel. Comparereadings between each end of reel forstraightness. All reading should be within .002".

C. Carefully remove dial set up stand and storein hole provided in end trays.

FIG. 50

FIG. 49

FIG. 48

Cone ShapeINCORRECT

Cylinder ShapeCORRECT

1/32"

Indicator Rod PlungerIndicator Stop Bar

Indicator Rod

Wing Screw

30

OPERATING INSTRUCTIONS (Continued)SETUP PROCEDURE FOR SPIN DRIVERPM VERSUS TRANSVERSE SPEED

SPIN DRIVE RPM

SPIN DRIVE RPM IS VERY IMPORTANT IN ACHIEVING AQUALITY GRIND. USE CARE IN ESTABLISHING THE SPINDRIVE RPM, PER THE INSTRUCTIONS BELOW.

Generally, the Spin Drive RPM will be between 180 RPM (45%)and 380 RPM (100%). The speed required to spin a specific reelis dependant on reel diameter, the number of reel blades, and reelhardness. For all reels, there is an optimum Spin Speed wherethere is an AGGRESSIVE, yet smooth grind as you spin grind thereel. Your objective is to spin grind the reel as aggressively andas fast as possible while maintaining top quality.

It is recommended to start grinding each reel at a Spin Speed of200 RPM (50%) and evaluate the RPM by adjusting higher andlower to optimize the Spin Speed for that reel. If the Spin Speedis incorrectly set, you can experience two problems, grindingwheel dressing or grinding wheel resonance. Each of these prob-lems is explained below.

On some reels, especially small diameter high blade count reelsif the Spin Speed RPM is set to high, the reel can act as a dresserto the grinding wheel. There can develop what appears to be avery aggressive grind (as if the infeed has self infed) and then asudden stop of grinding with no grinding wheel to reel contact. Ifthis occurs, your Spin Speed was set to high and you effectivelydressed your grinding wheel.

Some reels have a resonant RPM where the reel goes into har-monics with the grinding wheel and the resonance vibrates thegrinder and results in a very bad grind. By changing the SpinSpeed to a higher or lower RPM you will move out of the resonantrange.

After determining the best Spin Speed RPM for a reel, note theRPM on a "Set-up Chart" that you will make. By noting the cor-rect RPM, you will avoid evaluating the Spin Speed the next timeyou grind the reel.

TRAVERSE DRIVE RPMThe Traverse Speed potentiometer is adjustable from approxi-mately 5 feet per minute [1.5 meters per minute] to 35 feet perminute [10 meters per minute]. It is recommended to grind be-tween 15 and 20 feet per minute [4 and 6 meters per minute].

Grinding at a slower traverse speed, 10 feet per minute[3 meters per minute] as an example, will give a better finish butwill extend the grind cycle time. Grind finish versus grind cycletime is controlled by the choice of the operator.

31

OPERATING INSTRUCTIONS (Continued)GRINDING REEL INTO A TRUE CYLINDERBY SPIN GRINDING

A. Before you proceed any further, check allknobs to insure they are tight.

FIRMLY TIGHTEN ALL LOCKINGKNOBS BEFORE GRINDING.ANY LOOSENESS WILLADVERSELY AFFECT GRINDQUALITY. ALL KNOBS CAN BEADDITIONALLY TIGHTENEDWITH AN ALLEN WRENCH TOINSURE MAXIMUM LOCKINGPOWER.

B. There are three (3) hand knobs for locking thegrinding wheel vertically. Two (2) on the basefor the adjusting arm locks and one for grindingwheel vertical height adjustment locking screw.

WHEN SPIN GRINDING, THEPOSITION OF FINGER ISROTATED 180 DEGREES TOPROVIDE CLEARANCE WHILEGRINDING. SEE FIG. 53.

C. Position the height of the grinding wheelcenter so that it is 0 to 1" below the reelcenter. See FIG. 54. If the reel guide fingerinterferes, remove it.

D. Infeed the grinding wheel until it just makescontact with a reel blade and rotate the reelby hand to make sure the blades clear thestop finger. Now tighten the two lockingknobs on the locking arms and the lockingknob for the height adjustment screw.

THE ABOVE SECTION DMUST BE ACCOMPLISHEDWITH THE MAIN POWEROFF.

IT IS CRITICAL THAT THEREEL BE HAND ROTATEDTO VERIFY STOP FINGERCLEARANCE. FAILURETO DO SO COULD CAUSESIGNIFICANT DAMAGE TOTHE REEL AND GRINDERAND POTENTIAL INJURYTO THE OPERATOR.

0" to 1"

FIG. 54

FIG. 53

FIG. 52

32

OPERATING INSTRUCTIONS (Continued)GRINDING REEL INTO A TRUE CYLINDERBY SPIN GRINDING (Continued)

E. Move the grinding wheel back from the reel andframe so it will clear at all points. Set proximitystops so they line up approximately with the endof the frame and tighten them securely. Adjustthe traverse speed knob to zero and turntraverse switch to on. Increass the traversespeed knob so the carriage will traverseslowly across the reel. See FIG. 55 & 56.

When the carriage has come to a momentarystop against proximity switch, turn traverseswitch off. In this position, check to see thatgrinding wheel has cleared the end of thereel. If not, readjust stop so that this happens.

CAUTION--IF THE REEL FRAMEEXTENDS PAST THE REELITSELF, MAKE SURE THE STOPIS SET SO THAT THE GRINDINGWHEEL WILL NOT RUN INTOFRAME WHEN GRINDING. IT ISPOSSIBLE THAT IN SOMECASES THIS WILL MEAN THEGRINDING WHEEL WILL NOTCLEAR THE END OF THE REELWHEN GRINDING.

F. Repeat this procedure for the other side of thereel and then set the traverse speed dial to"10" and let carriage traverse back and forth tomake sure that the stops are set properly.

G. Move grinding carriage to the high side end ofthe reel and stop carriage.

H. Turn on spin drive motor and check to see ifreel is spinning freely and that couplingcomponents are properly aligned.

EXTREME CARE SHOULDBE TAKEN OF YOURHANDS AND CLOTHINGAROUND THE SPINNINGREEL AND ROTATINGCOUPLER SHAFTS. ATNO TIME SHOULD REELBE STARTED BYREVOLVING IT BY HAND.

I. Turn on grinding wheel motor on main controlpanel. Now slowly infeed the grinding wheeluntil it just make contact with the reel. SeeFIG. 57.

FIG. 55

FIG. 56

FIG. 57

33

OPERATING INSTRUCTIONS (Continued)GRINDING REEL INTO A TRUE CYLINDERBY SPIN GRINDING (Continued)J. Set traverse speed knob to approximately

"12", then turn on the traverse switch andbegin grinding. If reel is in bad condition,traverse slower as more material can bemoved. Conversely, if the reel is in goodcondition, speed can be increased.

MAXIMUM STOCK REMOVABLEPER PASS IS .008. NOTE: THEINFEED HANDLE IS CALIBRATEDIN INCREMENTS OF .002 ONTHE RING SCALE LOCATED ONTHE INSIDE OF THE INFEEDHANDLE.

K. If grinding wheel is only making contact in oneposition of the reel, adjust the traverse stopso the carriage traverses slightly further thanthe contacted area. As you infeed and wheelmakes full contact in this area, move traversestop away 6 to 8". This will speed up thegrinding process of getting a cone shapedreel into a perfect cylinder. See FIG. 58.

L. Spin grinding is completed when full contactis made across the entire length of the reeland the entire width of all blades. It is requiredto have a sparkout to complete grinding theoutside diameter to a true diameter. Forsparking out, the process is to infeed thegrinding head for approximately .002 stockremoval (one line on the ring scale) and letthe grinding wheel sparkout. For sparking outin grinding process, always traverse grindinghead at least 20 passes with no grinding headinfeed. Set traverse at slow speed on dialsetting approximately 4 to 8 feet per minuterange for final grinding sparkout. Aftersparkout, shut the grinder completely off.

NOTE: This process refers to sparkout, but whatwe are looking for is a near sparkout, approximatelya 99% reduction in grinding sparks from normalgrind. Do not run sparkout until you have nosparks because this could be an extremely ex-tended period.NOTE: Greatest accuracy and best finish isobtained when reel is sparked out.Use your set up gauge, prior to relief grinding tocheck the reels for roundness. This is very impor-tant when first learning the operation of yourmachine. Refer to Page 26 for details on check-ing wheel roundness.

Index reel blade until you read the high point on the indica-tor. Now loosen the wing screw and set the indicator stopblock to a 1/32" gap as shown in FIG. 49 & 50.

Mark this blade as #1 and set the large dial of indicatorsetting to "0", then check each blade for maximum andminimum reading.

Check each end of reel and at the center. After becomingfamiliar with the process, you will not have to check eachreel.

IT IS VERY IMPORTANT IN SPINGRINDING THAT YOU THOROUGHLYSPARKOUT AT THE END OF THE GRINDCYCLE. THE DIFFERENCE OFACHIEVING .005 OR .003 TOTAL READINGIS ACCOMPLISHED WHEN NOTINFEEDING THE GRINDING WHEEL.

FIG. 58

34


20°-40° Relief Grind

Corner of WheelDoing Grinding

Left HandReel Spiral

High Point ofFinger Guide

Right HandReel Spiral

Corner of WheelDoing Grinding


SIDE VIEW OFGRINDING WHEEL

LOOKING FROMTHE REELLOADING POSITION

Grinding Wheel

Mower UnitEnd Frame

Guide Finger

Reel

1/8" [1.25] Clearancefor Blade Indexing

Over .75 Dimension uselarge finger guide. For.75 to .50 Dimension usesmall finger guide, and.375 wide grinding wheel

FIG. 59

FIG. 60

FIG. 61

FIG. 62

REEL SPIRALWhen standing behind the mowing unit when themowing unit is sitting in normal position on the ground.If the spiral is such that the right side of the blade cutsbefore the left, it is a right hand lead in or a right handspiral reel. If the spiral is such that the left side of theblade cuts before the right it is a left hand lead in or lefthand spiral reel. Most reels made today are right handspiral.

RELIEF GRINDING TO COMPLETE THE REELGRINDING PROCESSA. Disconnect the spin drive coupling components from

the reel and place in tool tray. Slide the spin motorback and attach the manual indexer. See FIG 62A.

B. Check to see if your mowing unit is a left hand orright hand spiral. See reel spiral definition above.NOTE: As you look into the guide finger in FIG. 60it shows a reel with reverse helix reel spiral. Thehigh point of finger guide is on the right hand side ofthe grinding wheel viewed from the finger mountedside. See FIG. 61 for standard helix. Most mowingunits are standard helix so traverse your carriageto the right hand side of reel for starting position.Traverse carriage until there is at least .125 (1/8")clearance to the guide finger for indexing. See FIG.62. Set the right hand traverse stop for this car-riage reversing position. Traverse to the other endof the reel blade until the guide finger is beyond thepoint of grind by approximately .125 (1/8") to .75 (3/4"). Set the left hand traverse stop for this carriagereversing position.

C. There are three (3) hand knobs to loosen. Two (2)on the base for the adjusting arm locks andone for grinding wheel vertical height adjust-ment locking screw. Raise the grindingwheel up (approximately 7 turns) so the reelblade can rest on the reel guide finger. It willbe necessary to infeed the grinding wheel to ac-complish this. See FIG. 59.

D. Now you can adjust the back angle you wish toput on the reel blade. (The average recommendedmanufacturer's angle is 20 to 40 degrees. When indoubt, check with each reel manufacturer as to theexact angle required.) By looking down the reelfrom the operator's position you can see the reeland its relative position to the grinding wheel. Byraising the grinding wheel you will decrease theback angle and conversely by lowering the grindingwheel you will increase the back relief angle.Traverse the grinding wheel assembly to the rightside of the reel. Retighten all three (3) handknobs.

35

OPERATING INSTRUCTIONS (Continued)REEL SPIRAL (Continued)

THE HIGH POINT OF THE GUIDEFINGER MUST ALWAYS BE ATTHE CORNER OF THE GRINDINGWHEEL THAT IS MAKINGCONTACT WITH THE REEL.SEE FIG. 60 & 61.

ROTATE FINGER GUIDE ENDFOR END WHEN REEL SPIRALIS IN THE OPPOSITE DIRECTIONAS SHOWN IN FIG. 60 & 61.

E. It is recommended that you practice indexingthe blades for relief grinding prior to actuallygrinding them. Do this by backing the grindingwheel away from the blade so that virtually nocontact is made with the blade that is restingfully on the guide finger. Now with the grindingwheel NOT turning, turn on traverse motorand set at 6 and let grinding assemblytraverse down. On the return stroke, alwayscome back on the same blade. After traversingdown and returning on a blade, relief grindingrequires the operator to manually index to thenext blade using the manual indexer. This is acritical operation and should be well practicedprior to grinding. On the practice run you haveto hold the reel against the finger on the returnstroke using the manual indexer.

IT IS NECESSARY TO MANU-ALLY POSITION THE REELBLADE ON THE GUIDE FINGER.IF YOU OVER-INDEX AND MISSTHE FINGER THE GRINDINGWHEEL WILL BE JAMMEDBETWEEN TWO BLADES. IFYOU UNDER-INDEX THEGRINDING WHEEL WILL BEJAMMED AGAINST THE BLADEYOU ARE TRYING TO GRIND.

FIG. 62A

36

OPERATING INSTRUCTIONS (Continued)REEL SPIRAL (Continued)

When you are comfortable with this procedure,continue with the next step in actually grinding.

NOTE: At each end of the stroke when reversing,there must be a 1-second or longer pause. Thiscan be increased. See control board settings inthe adjustment section of the manual. The 1-second hesitation at the end of the stroke permitstime to manually index the reel.

F. It is recommended that when the relief grindingis completed that 70% of the reel blade beremoved. See FIG. 63. This will generally takeup to three passes across each blade. At thistime infeed the grinding wheel to take 1/3 to1/2 relief grind. This amount will vary dependingon the condition of the reel.

G. Mark the first blade with an "X" using a feltmarker and with this reel blade resting on thefinger guide but not making reel contact withthe grinding wheel, set the traverse dial to "0",turn on the grinding wheel motor and traversingmotor.

H. Hold the reel to the guide finger with themanual indexer and and turn the traversespeed to "6". As soon as the grinding wheelcontacts the reel, remove your hand from themanual indexer. The guide finger will keep theblade in place as the grinding assemblytraverses across the reel. When it reachesthe left side of the reel the reel blade leaves theguide finger. The traverse switches will re-verse the carriage direction to the oppositedirection and the guide finger will automaticallypick up the same reel blade and will be helddown to the guide finger with the rotation of thegrinding wheel.

I. Now continue grinding each blade by indexingthem as practiced in procedure "E" until youhave ground each blade down and back.When each blade has been ground inspect tosee if proper relief has been attained. If not,reset wheel as in procedure "D" and regrindas before. Continue until you achieve the70% relief. See FIG. 63.

FIG. 63

20° - 40°

30%

Cutting Edge

37

OPERATING INSTRUCTIONS (Continued)REEL BLADE GRINDING WITHCLOSELY SPACED BLADES

A. If the reel blades are too close together or theclearance between mower unit is too narrowand will not permit you to use the large reelfinger guide, it will be necessary to use thealternate stamped finger guide and a 3/8"wide grinding wheel (Part No. 3700363). SeeFIG. 62.NOTE: This wheel is not included withthe grinder.In order to use this guide you will be requiredto dress the grinding wheel as follows: Placethe guide finger on the grinding motor assemblyand position about 1/16" away from the grindingwheel. On the normal helix reels, no dressingis required. See FIG. 64. On the reverse helixreels. See FIG. 65.With the grinding wheel assembly in a positionwhere you can reach it with the dressing stick,turn on the grinding wheel and dress theportion of the wheel at approximately 10degrees. See FIG. 65.

B. The grinding procedures for using this fingerwill be the same as when using the largerguide finger, but because of its relative smallsize it is recommended that you index fromblade to blade in the following manner: Whengrinding wheel assembly makes contact withthe right traversing stop and pauses beforereversing direction. Turn the traversing speedpotentiometer knob to "0" this will stop thegrinding head carriage. Now index the nextblade and slowly increase the traverse speedpotentiometer knob to move the grindingwheel into the reel while you position the bladeonto the guide finger. Once finger is in placeand grinding has started turn the speed dial to"6" and continue to grind as before. This procedurewill be necessary for every blade.

IT IS NECESSARY TO MANUALLY POSITION THEREEL BLADE ON THE GUIDE FINGER. IF YOU OVER-INDEX AND MISS THE FINGER THE GRINDINGWHEEL WILL BE JAMMED BETWEEN TWO BLADES.IF YOU UNDER-INDEX THE GRINDING WHEEL WILL BEJAMMED AGAINST THE BLADE YOU ARE TRYINGTO GRIND.

Left Hand Spiral

High Point of FingerGuide

NO SPECIAL WHEELDRESSING REQUIRED

Point of GridingWheel Contact


10 °

Point of GrindingWheel Contact

Right Hand Spiral

Hand Dressto a Point

FIG. 65

FIG. 64

ACCU-600 SPIN / RELIEF REEL MOWER GRINDER · The grinder is equipped with a low voltage relay which is factory preset at 100 VAC. If the power supply line does not deliver 100 VAC

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