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BRAZILMULTIQUIPAv. Evandro Lins e Silva, 840 - grupo 505 Tel. 011-55-21-3433-9055Barra de Tijuca - Rio de Janeiro Fax 011-55-21-3433-9055RJ CEP 22631-470Contact: [email protected], [email protected]
2. Sound pressure is a weighted measure. It is measured atthe operator's ear position while the walk-behind trowel isoperating at full throttle on concrete in a manner most oftenexperienced in “normal” circumstances. Sound pressuremay vary depending upon the condition of the concrete.
1. The vibration level indicated is the maximum RMS (RootMean Square) value obtained at the handle grip whileoperating the walk-behind trowel at full throttle on steelplate with blades partially pitched.
This checklist will lists some of the minimum requirements formachine maintenance and operation. Please feel free to detachit and make copies. Use this checklist whenever a new operatoris to be trained or it can be used as a review for more experiencedoperator’s.
Safety precautions should be followed at all times when operatingthis equipment. Failure to read and understand and comply withthe Safety Messages and Operating Instructions could result ininjury to yourself and others.
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
This Owner's Manual has beendeveloped to provide completeinstructions for the safe andefficient operation of the MQWhiteman CA4-4H TROWEL.For engine maintenanceinformation, please refer to theengine manufacturersinstructions for data relative to itssafe operation.
Before using this WALK-BEHIND TROWEL, ensure that theoperating individual has read and understands allinstructions in this manual.
HAZARD SYMBOLS
Engine exhaust gases contain poisonouscarbon monoxide. This gas is colorless andodorless, and can cause death if inhaled.NEVER operate this equipment in a confinedarea or enclosed structure that does notprovide ample free flow air.
Gasoline is extremely flammable, and itsvapors can cause an explosion if ignited. DONOT start the engine near spilled fuel orcombustible fluids. DO NOT fill the fuel tankwhile the engine is running or hot. DO NOToverfill tank, since spilled fuel could ignite if itcomes into contact with hot engine parts orsparks from the ignition system. Store fuel inapproved containers, in well-ventilated areasand away from sparks and flames. NEVERuse fuel as a cleaning agent.
Burn Hazards
Engine components can generate extreme heat.To prevent burns, DO NOT touch these areaswhile the engine is running or immediately afteroperations. NEVER operate the engine withheat shields or heat guards removed.
Rotating Parts
NEVER operate equipment with covers, orguards removed. Keep fingers, hands, hairand clothing away from all moving parts toprevent injury.
Explosive Fuel
Lethal Exhaust Gases
NOTE
SAFETY MESSAGE ALERT SYMBOLS
The three (3) Safety Messages shown below will inform youabout potential hazards that could injure you or others. TheSafety Messages specifically address the level of exposure tothe operator, and are preceded by one of three words: DANGER,WARNING, or CAUTION.
You WILL be KILLED or SERIOUSLY INJUREDif you DO NOT follow these directions.
You CAN be KILLED or SERIOUSLY INJURED ifyou DO NOT follow these directions.
You CAN be INJURED if you DO NOT followthese directions.
CAUTICAUTICAUTICAUTICAUTION
DANGERDANGERDANGERDANGERDANGER
WARNINGWARNINGWARNINGWARNINGWARNING
Potential hazards associated with CA4-4H TROWEL operationwill be referenced with Hazard Symbols which appearthroughout this manual, and will be referenced in conjunctionwith Safety Message Alert Symbols.
ALWAYS place the engine ON/OFFswitch in the OFF position, when thetrowel is not in use.
Over Speed Conditions
NEVER tamper with the factory settings of theengine governor or settings. Personal injuryand damage to the engine or equipment canresult if operating in speed ranges abovemaximum allowable.
Respiratory Hazard
ALWAYS wear approved respiratory protection.
ALWAYS wear approved eye and hearingprotection.
Sight and Hearing hazard
Equipment Damage Messages
Other important messages are provided throughout this manualto help prevent damage to your trowel, other property, or thesurrounding environment.
CA4-4H TROWEL— SAFETY MESSAGE ALERT SYMBOLS
This walk-behind trowel, other property, or thesurrounding environment could be damagedif you do not follow instructions.
The following safety guidelines should always be used whenoperating the CA4-4H.
SAFETY
■ DO NOT operate or service this equipmentbefore reading this entire manual. Themanual must be kept available and accessibleto the operator.
■ This equipment should not be operated by persons under theminimum statutory age limit.
■ ALWAYS use extreme caution when working with flammableliquids. When refueling, STOP the engine and allow it to cool.
■ NEVER touch the hot exhaust manifold, muffleror cylinder. Allow these parts to cool beforeservicing the trowel.
■ The engine of this trowel requires an adequate free flow ofcooling air. NEVER operate the trowel in any enclosed or
narrow area where free flowof the air is restricted. If theair flow is restricted it willcause serious damage tothe engine and may causeinjury to people. Rememberthe engine gives offDEADLY carbon monoxidegas.
■ High Temperatures – Allow the engine to cool before addingfuel or performing service and maintenance functions. Contactwith hot! components can cause serious burns.
■ ALWAYS refuel in a well-ventilated area, away from sparksand open flames.
RULES FOR SAFE OPERATION
■ ALWAYS check the trowel for loosened hardware such asnuts and bolts before starting.
■ Replace nameplate, operation and safety decals when theybecome difficult to read.
■ NEVER use accessories or attachments which are notrecommended by Multiquip for this equipment. Damage tothe equipment and/or injury to user may result.
■ Manufacturer does not assume responsibility for any accidentdue to equipment modifications. Unauthorized equipmentmodification will void all warranties. Any modification whichcould lead to a change in the original characteristics of themachine should be made only by the manufacturer who shallconfirm that the machine is in conformity with appropriatesafety regulations.
WARNINGWARNINGWARNINGWARNINGWARNINGFailure to follow instructions in this manual may lead to seriousinjury or even death! This equipment is to be operated bytrained and qualified personnel only! This equipment is forindustrial use only.
■ NEVER smoke around or near the machine.Fire or explosion could result from fuelvapors, or if fuel is spilled on a hot! engine.
■ Topping-off to filler port is dangerous, as it tends to spill fuel.
■ NEVER use fuel as a cleaning agent.
■ NEVER operate this equipment when not feeling well due tofatigue, illness or taking medicine.
■ NEVER operate the trowel under the influence or drugs oralcohol.
■ NEVER operate the trowel without proper protective clothing,shatterproof glasses, steel-toed boots and other protectivedevices required for the job.
■ NEVER use this machine for any purpose other than thosedescribed in this manual.
■ NEVER operate the trowel in anexplosive atmosphere where fumesare present, or near combustiblematerials. An explosion or fire couldresult in severe bodily harm or evendeath.
■ NEVER Run engine without air filter. Severe engine damagemay occur. Service air filter frequently to prevent carburetormalfunction.
■ NEVER place your feet or hands inside the guard ringswhile starting or operating this equipment.
■ AVOID wearing jewelry or loose fitting clothing that may snagon the controls or moving parts as this can cause a seriousinjury.
■ ALWAYS keep clear of rotating or moving parts whileoperating the trowel.
■ Moving Parts – Shut down the engine before performingservice or maintenance functions. Contact with moving partscan cause serious injury.
■ ALWAYS check to make sure that the operating area is clearbefore starting the engine.
■ NEVER leave the machine unattended while running.
■ ALWAYS be sure the operator is familiar with proper safetyprecautions and operations techniques before using trowel.
■ ALWAYS keep the work area well organized.
■ ALWAYS clear the work area of any debris, tools, etc. thatwould constitute a hazard while the trowel is in operation.
■ ALWAYS know the location ofthe nearest fire extinguisher.
CA4-4H TROWEL — RULES FOR SAFE OPERATION
■ ALWAYS know the location of thenearest and first aid kit.
■ In emergencies always know the location of thenearest phone or keep a phone on the job site.Also know the phone numbers of the nearestambulance, doctor and fire department. Thisinformation is invaluable in the case of anemergency and could keep a serious situation frombecoming a tragic one .
Maintenance Safety■ NEVER lubricate components or attempt service on a running
trowel.
■ ALWAYS allow the trowel a proper amount of time to coolbefore servicing.
■ Keep the trowel in proper running condition.
■ Fix damage to the trowel immediately and always replacebroken parts.
■ Dispose of hazardous waste properly. Examples of potentiallyhazardous waste are used motor oil, fuel and fuel filters.
■ DO NOT use food or plastic containers to dispose ofhazardous waste.
■ ALWAYS shutdown engine before transporting.
■ Tighten fuel tank cap securely and close fuel cock to preventfuel from spilling.
■ Drain fuel when transporting trowel over long distances orbad roads.
Transporting
■ ALWAYS store equipment properly when it is not being used.Equipment should be stored in a clean, dry location out of thereach of children.
■ No one other than the operator is to be in the working areawhen the saw is in operation.
■ Always observe all applicable compulsory regulationsrelevant to environmental protection, especially, fuel storage,the handling of hazardous substances, and the wearing ofprotective clothing and equipment. Instruct the user asnecessary, or, as the user, request this information andtraining.
ALWAYS check to make sure that theoperating area is clear before starting theengine.
WARNINGWARNINGWARNINGWARNINGWARNING
Emergencies
■ When placing the trowel inside a truck-bed for transport,always tie-down the trowel.
■ ALWAYS use proper lifting techniques when moving thetrowel.
The CA4-4H walk-behind trowel is equipped with a number of operation, safety and maintenance decals. Should any of thesedecals become unreadable, replacements can be obtained from your dealer.
P/N 20936
P/N 2942 WHITE TEXT 13”
PO
WER TROW
EL
P/N 1848
ATTENTIONPUSH PITCH CONTROL TOFULL FORWARD POSITIONBEFORE FOLDING HANDLE
P/N 10732 (WHITE TEXT)
P/N: 11246
P/N: 13118
P/N: 21455
P/N 35137
To avoid injury,you MUST readand understandoperator’s manualbefore using thismachine.
Ask for trainingas needed.
This machine tobe operated byqualifiedpersonnel only.
P/N 35137
WARNING
MODELSERIAL NO.
P/N 36099 (ISO Blue)
Engine exhaust and some ofits constituents, and some dust created
of California to cause cancer, birthdefects and other reproductive harm.
by power sanding, sawing, grinding,drillingandotherconstructionactivitiescontains chemicals known to the State
Your risk from these exposures varies,dependingonhowoftenyoudothistypeof work. To reduce your exposure tothese chemicals: work in aALWAYSwell ventilated area, and work withapproved safety equipment, such asdust masks that are specially designedto filter out microscopic particles.
This walk-behind trowel is designed for the floating andfinishing of concrete slabs.
Take a walk around the trowel. Take notice of all the majorcomponents (see Figure 2) like the engine, blades, Quick Pitch™handle, clutch lever, etc. Check that there is always oil in theengine.
Read all the safety instructions carefully. Safety instructions willbe found throughout this manual and on the trowel. Keep allsafety information in good, readable condition. Operators shouldbe well trained on the operation and maintenance of the trowel.
Before using your trowel, test it on a flat watered down section offinished concrete that is free of any debris and other objects.
This trial test run will increase your confidence in using the troweland at the same time it will familiarize you with the trowel’scontrols. In addition you will understand how the trowel handlesunder actual conditions.
Engine
This trowel is available with a 2.9 kW (4 HP) HONDA gasolineengine. Refer to the engine owner’s manual for instructionsregarding the operation and maintenance of your engine. Pleasecontact your nearest Multiquip Dealer for a replacement shouldthe original manual disappear or otherwise become unusable.
Training
For proper training, please use the “TRAINING CHECKLIST”located in the front of this manual (Page 8). This checklist willprovide an outline for an experienced operator to provide trainingto a new operator
Blades
The blades of the trowel finish the concrete as they are rotatedaround the surface. This trowel comes equipped with fourcombination (203mm / 8 in. wide) blades per rotor equallyspaced in a radial pattern and attached to vertical rotatingshaft by means of a spider assembly.
Manual Clutch
In the event of a trowel runaway condition (operator releasesthe handle), a manual clutch will stop the engine and bringthe trowel to a halt.
Drive System
Power is transferred from the engine to the gearbox input shaftvia a V-belt pulley drive system. The pulley engages using amanual clutch. See Parts section of this manual.
Gearbox
The gearbox is located beneath the engine and transfers powerto the spider assembly. The gearbox controls the rotational speedof the trowel and is equipped with two shafts (input and output).
Guard Ring
This unit is equipped with a special rotating guard ring. It isdesigned to allow the operator to run the machine alongsidewalls, pipes, and obstructions without marring the surface.
CAUTIONCAUTIONCAUTIONCAUTIONCAUTIONNEVER attempt to lift the trowel by yourself. ALWAYS getthe assistance of another person to help lift the trowel .
Operate the CA4-4H Trowel, tools and components inaccordance with the manufacturer's instructions. Use of anyother tools for stated operation is considered contrary todesignated use. The risk of such use lies entirely with the user.The manufacturer cannot be held liable for damages as a resultof misuse.
Intended Use Spider
The vertical output shaft of the gearbox connects to a cast hubcalled the spider. The spider has 4 arms that extend outwardthat are used for attachment of blades or other accessories.Remember as the gearbox output shaft rotates so does the spiderassembly.
Figures 2 shows the location of the basic controls or components,for the CA4-4H TROWEL. Listed below is a brief explanation ofeach control or component
1. Quick Pitch™ Control Handle – To adjust the pitch ofthe blades, grasp the handle then squeeze and either movethe handle forward or backward to achieve the desiredblade pitch.
2. Throttle Control Lever – Controls the speed of the engine.Move the hand lever towards the operator to increaseengine speed (high), away from the operator to decreaseengine speed (low).
3. Hand Grip/Handle Bar – When operating the trowel, placeboth hands on each grip to maneuver the trowel. Replacehand grips when they become worn or damaged.
4. Engine – This trowel uses a Honda GX120 gasolineengine.
5. Clutch Lever - Clutch engagement lever. When this leveris engaged, the blades will begin to rotate.
5A. Clutch Lever Retainer- Assists the operator in holdingdown the clutch lever.
6. Rotating Guard Ring- NEVER put hands or feet insideguard ring. NEVER attempt to llift trowel by the guard ring.
7. Trowel Arm – NEVER operate the trowel with a bent, brokenor out of adjustment trowel arm. If the blades show unevenwear patterns or some blades wear out faster than others,the trowel arm may need to be replaced.
8. Blades – This trowel is equipped with special combinationblades. Designed specifically for edging. In addition floatdiscs can be attached to the trowel arms that will allow thetrowel to float on "wet " concrete.
9. V-Belt Cover – Remove this cover to gain access to the V-belt. NEVER operate the trowel with this cover removed.
10. T-Handle Release Knob – Turn this handle counter-clockwise to release the upper handle and place in eitherdown position or operate position. Turn handle clockwiseto lock upper handle in place.
11. Lifting Bale – Trowel can be lifted and moved either bycrane or by two people using the two handles on the bale.
12. Lifting Handle – For use when two people are lifting thetrowel. Always make sure the folding handle is secure whenlifting. Never attempt to life the trowel by the guard ring.
Figure 3. Honda GX120K1QX2 Engine Controls and Components
INITIAL SERVICING
The engine (Figure 3) must be checked for proper lubrication andfilled with fuel prior to operation. Refer to the manufacturer's enginemanual for instructions & details of operation and servicing. Theengine shown above is a HONDA engine, operation for othertypes of engines may vary somewhat.
1. Fuel Filler Cap – Remove this cap to add unleadedgasoline to the fuel tank. Make sure cap is tightenedsecurely. DO NOT over fill.
DANGER
CA4-4H TROWEL— BASIC ENGINE
2. Throttle Lever – Used to adjust engine RPM speed (leveradvanced forward SLOW, lever back toward operatorFAST).
3. Engine ON/OFF Switch – ON position permits enginestarting, OFF position stops engine operation.
4. Recoil Starter (pull rope) – Manual-starting method. Pullthe starter grip until resistance is felt, then pull briskly andsmoothly.
7. Air Cleaner – Prevents dirt and other debris from enteringthe fuel system. Remove wing-nut on top of air filtercannister to gain access to filter element.
Operating the engine without an airfilter, with a damaged air filter, or afilter in need of replacement willallow dirt to enter the engine, causingrapid engine wear.
11. Oil Drain Plug – Remove this plug to remove oil from theengine's crankcase.
12. Dipstick/Oil Filler Cap – Remove this cap to determine ifthe engine oil is low. Add oil through this filler port asrecommended in Table 3.
6. Choke Lever – Used in the starting of a cold engine, or incold weather conditions. The choke enriches the fuelmixture.
10. Fuel Tank – Holds unleaded gasoline. For additionalinformation refer to engine owner's manual.
9. Muffler – Used to reduce noise and emissions.
8. Spark Plug – Provides spark to the ignition system. Setspark plug gap according to engine manufacturer'sinstructions. Clean spark plug once a week.
NOTE
Adding fuel to the tank should be done onlywhen the engine is stopped and has had anopportunity to cool down. In the event of a fuelspill, DO NOT attempt to start the engine untilthe fuel residue has been completely wipedup, and the area surrounding the engine is dry.
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stopthe flow of fuel.
The CA4-4H TROWEL is equipped with a folding upper handle(Figure 4). It was assembled at the factory and shipped in itsfolded or stow position. You will need to unfold and adjust thetrowel handle to the upright position prior to operation.
Considerable force may berequired when moving theQuick Pitch™ handle forwardor backward.
Unfolding the Trowel for Operation
1. Make sure that the Quick Pitch™ handle has beenattached to the upper handle bar and the pitch control cablehas slack. Remove the T-handle knob from the swing bolton the top side of the upper handle bar, by rotating theknob counter-clockwise. Move the Quick Pitch™ handletoward's the operator's position and unfold the upperhandle bar away from the engine into the upright position.Re-insert the swing bolt so that it fits through the slot in thehinge plate. Turn the T-handle knob counter-clockwisesecurely to hold upper handle bar in place.
Figure 4. Trowel Folded and Operational Positions
NOTE
FOLDEDPOSITION
OPERATIONALPOSITION
Quick Pitch Handleshould be forwardwhen handle is infolded position.
T-HANDLEKNOB
UPPERHANDLE
DO NOT operate unless T-Handle Knob is securely in place.
2. When folding the handle assembly, remember to move theQuick Pitch™ handle forward first to avoid stretchingthe throttle cable.
ALWAYS wear approved eye andhearing protection before operating thetrowel.
NEVER place hands or feet inside theguard rings while the engine is running.ALWAYS shut the engine down beforeperforming any kind of maintenanceservice on the trowel.
CA4-4H TROWEL— PRE-INSPECTION
Figure 5. Engine Oil Dipstick (Removal)
3. Insert and remove the dipstick without screwing it into the fillerneck. Check the oil level shown on the dipstick.
4. If the oil level is low (Figure 6), fill to the edge of the oil fillerhole with the recommended oil type (Table 3). Maximum oilcapacity is .45 liters (0.48 quarts).
Reference manufacturer enginemanual for specific servicinginstructions.
Figure 6. Engine Oil Dipstick (Oil Level)
Before Starting
1. Read safety instructions at the beginning of manual.
2. Clean the trowel, removing dirt and dust, particularly theengine cooling air inlet, carburetor and air cleaner.
3. Check the air filter for dirt and dust. If air filter is dirty, replaceair filter with a new one as required.
4. Check carburetor for external dirt and dust. Clean with drycompressed air.
5. Check fastening nuts and bolts for tightness.
Engine Oil Check
1. To check the engine oil level, place the trowel on securelevel ground with the engine stopped.
2. Remove the filler dipstick from the engine oil filler hole(Figure 5) and wipe clean.
A worn or damaged V-belt can adversely affect the performanceof the trowel. If a V-belt is defective or worn simply replace the V-belt as outlined in the maintenance section of this manual.
Belt Guard Check
Check for damage, loose or missing hardware.
Blade Check
Check for worn or damaged blades. Check to see if one blade isworn out while the others look new. If this is the case there couldbe a blade pitch problem. Refer to the maintenance section ofthis manual for blade pitch adjustment procedure. Replace anyworn blades.
Hand Clutch
This finisher model is equipped with a hand operated clutch.The unit automatically stops rotating when the clutch lever isreleased. Clutch operation should be tested each time the machineis started.
DO NOT let the machine sit unused with the engine at high speedfor an extended period of time. It will cause premature belt wearor may destroy the belt. Always set the engine speed to idle whenthe hand clutch is disengaged.
1. Remove the gasoline cap located on top of fuel tank.
2. Visually inspect to see if fuel level is low. If fuel is low, replenishwith unleaded fuel.
3. When refueling, be sure to use a strainer for filtration. DONOT top-off fuel. Wipe up any spilled fuel.
2. If lubrication oil begins to seep out as the drain plug isbeing removed, then it can be assumed that the gearboxhas a sufficient amount of oil.
3. If lubrication oil does not seep out as the drain plug isbeing removed, fill with type ISO 680 (P/N 10139) gearboxlubricant oil until the oil filler hole overflows.
Figure 7. Gearbox
Gearbox Oil
1. Determine if the gearbox oil is low by removing the oilplug located on the side of the gearbox. This plug will bemarked by the "check" decal. See Figure 7. The correctlevel of the lubrication oil should be to the bottom of the fillplug.
NEVER attempt to override the manual clutch by usingtape or other means to hold down the clutch lever. Doing somay cause SEVERE INJURY.
DANGERDANGERDANGERDANGERDANGEREXPLOSIVE FUEL!Motor fuels are highly flammable and canbe dangerous if mishandled. DO NOTsmoke while refueling. DO NOT attempt torefuel the trowel if the engine is hot! orrunning.
WARNINGWARNINGWARNINGWARNINGWARNING
CAUTIONCAUTIONCAUTIONCAUTIONCAUTIONDisconnect the spark plug wire from the spark plug andsecure away from the engine before performingmaintenance or adjustments on the machine.
3. Place the choke lever (Figure 10) in the "CLOSED " positionif starting a cold engine.
CA4-4H TROWEL — INITIAL START-UP
This section is intended to assist the operator with the initialstart-up of the walk-behind trowel. It is extremely important thatthis section be read carefully before attempting to use the trowelin the field.
DO NOT use your trowel until this section is thoroughlyunderstood
Starting the Engine
1. Place the engine fuel valve lever (Figure 8) to the "ON"position.
Figure 8. Engine Fuel Valve Lever
Lifting the Trowel Onto a Slab
Extra care should be taken when lifting the trowel off the ground.Serious damage to the machine or personal injury could becaused by dropping a trowel.
Figure 11. Engine Choke Lever (Open)
Figure 10. Engine Choke Lever
5. Place the engine ON/OFF switch (Figure 12) in the "ON "position.
Figure 12. Engine ON/OFF Switch
NEVER attempt to lift this machine alone. NEVER lift thetrowel by the guard ring as it may rotate and cause injry.
ALWAYS make certain the folding handle is secure and useonly the manufaturer's approved lifting points. The trowelmay be lifted at the center lifting bale by crane or other liftingdevice of adequate capacity.
4. Place the choke lever (Figure 11) in the "OPEN" position ifstarting a warm engine or the temperature is warm.
2. Place the trowel's throttle lever (Figure 9) to the "IDLE"position.
Figure 9. Throttle Lever (Idle Position)
WARNINGWARNINGWARNINGWARNINGWARNING
DO NOT attempt to operate the trowel until the Safety,General Information and Inspection sections of this manualhave been read and thoroughly understood.
CA4-4H TROWEL — INITIAL START-UP6. Grasp the starter grip (Figure 13) and slowly pull it out. The
resistance becomes the hardest at a certain position, corre-sponding to the compression point. Pull the starter grip brisklyand smoothly for starting.
Figure 13. Starter Grip
2. After the engine cools, turn the engine start/stop switch to the“OFF” position (Figure 15).
Figure 15. Engine ON/OFF Switch (OFF Position)
3. Close the fuel shut- off valve (Figure 16) by moving the fuelvalve lever to the OFF position.
Figure 16. Fuel Valve Lever (OFF Position)
Stopping The Engine
1. Move the throttle lever to the IDLE or SLOW position (Figure14) and run the engine for three minutes at low speed.
7. If the engine has started, slowly return the choke lever(Figure 11) to the OPEN position. If the engine has not startedrepeat steps 1 through 6.
8. Before the trowel is placed into operation, run the engine forseveral minutes. Check for fuel leaks, and noises that wouldassociate with a loose V-belt cover or component.
9. To begin troweling, move the throttle lever (Figure 14) towardthe "FAST" position.
1. To pitch the blades upwards using the "Quick Pitch™"handle, (Figure 17) simply squeeze the trigger lockand pull the handle towards the operator. Pushing thehandle towards the engine will cause the blades to layflat.
Figure 17. Quick Pitch™ Handle
2. To maneuver the trowel, gently lift up on or press down on themain trowel handle. To move the machine to the operator’sleft, lift up on the handle, to move machine to the right, pushdown on the handle.
The following steps are intended as a basic guide to machineoperation, and are not to be considered a complete guide toconcrete finishing. We suggest that all operators (experiencedand novice) read “Slabs on Grade” published by the AmericanConcrete Institute, Detroit, Michigan. Read the “Training”section of this manual for more information.
Maneuvering the Trowel
1. Get into the operator’s position behind the handle. With asecure foothold and a firm grasp on the handles slowlyincrease the engine speed until the desired blade speed isobtained.
Set engine speed with the throttle, then pull on the handclutch lever to start the blades turning. Adjust the blade speedafter the hand clutch is fully engaged.
Figure 18. Hand Clutch Lever
3. The best method for finishing concrete is to slowly walkbackwards (Figure 19) with the trowel, guiding the trowelfrom side to side. This will cover all footprints on wet concrete.
4. Remember that if you let go of the trowel, just step away andlet the trowel come to a complete stop before trying to recoverthe trowel.
5. Check the manual clutch occasionally for proper operation.Checking operation of the manual clutch at the beginning ofoperation and periodically serves as a safety check verifica-tion.
Figure 19 below illustrates a typical walk-behind trowelapplication. Practice maneuvering the trowel. The trick is to letthe trowel do the work.
Continue to practice maneuvering the trowel. Try to practice as ifyou were finishing a slab of concrete. Practice edging andcovering a large area. Remember a good finishing technique isto work backwards. Be careful when moving backwards so thathazards can be avoided. The best way to get accustomed to thetrowel is repeated use.
NEVER place your feet or hands inside the guard ringswhile starting or operating this equipment.
ALWAYS keep clear of rotating or moving parts whileoperating this equipment.
Blades are a vital part of finishing concrete. This finisher has beendesigned to finish concrete and is built to stringent quality standardsout of the finest trowel steel. If you need replacement blades,consult your parts list in this manual for part numbers and orderthem from your Multiquip parts dealer or importer.
Combo Blades
This trowel was equipped with combination type (Figure 20)blades as original equipment. These blades have been designedfor optimum performance in both the floating and finishing ofconcrete. These blades are versatile and should take care of mosttroweling needs.
Blades should be changed whenthey fail to finish concrete in asatisfactory manner.
CA4-4H TROWEL — OPTIONS
Optional Float Discs (Pans)
These round discs (Figure 21) attach to the spiders and allow themachine to “float ” on “wet ” concrete. The disc design allows earlyfloating and easy movement from wet to dry areas. They are alsovery effective in embedding large aggregates and surfacehardeners.
The following procedure shouldbe followed to adjust trowel armswhen it becomes apparent that thetrowel is finishing poorly or inneed of routine maintenance.
A level, clean area to test the trowel prior to and after is essential.Any unlevel spots in the floor or debris under the trowel bladeswill give an incorrect perception of adjustment. Ideally, a 127mmx 127mm (5 in. x 5 in.), 19 mm (0.75 in.) thick flat steel plateshould be used for testing.
1. To determine which blades need adjustment, place thetrowel in the test area (19 mm [0.75 in.] thick plate) and lookfor the following conditions:
■ Pitch the blades as flat as possible and look at theadjustment bolts. They should all just make contactwith the lower wear plate on the spider. If you can seethat one of them is not making contact, some adjustmentwill be necessary.
■ Is the machine wearing out blades unevenly (i.e. oneblade is completely worn out while the others look new)?
Figure 22 below illustrates "worn spider or bent trowel arms".Check to see that adjustment bolt is barely touching (0.10" max.clearance) lower wear plate. All alignment bolts should be spacedthe same distance from the lower wear plate.
Figure 23 below illustrates the "correct alignment " for a spiderplate (as shipped from the factory).
Figure 23. Correct Spider Plate Alignment
See the engine manual suppliedwith your machine for appropriateengine maintenance scheduleand troubleshooting guide forproblems.
MAINTENANCE SCHEDULE
Daily (8-10 Hours)
1. Check the oil level in the engine crankcase and gear box,fill as necessary.
2. Check V-belt.
Weekly (50-60 Hours)
1. Relube arms, thrust collar and clutch
2. Replace blades if necessary.
3. Check and clean or replace the engine air filter asnecessary.
4. Replace engine oil and filter as necessary, see enginemanual.
Monthly (200-300 Hours)
1. Remove, clean, reinstall and relube the arms and thrustcollar. Adjust the blade arms.
2. Remove, clean, reinstall clutch.
Yearly (2000-2500 Hours)
1. Check and replace if necessary the arm bushings, thrustcollar bushings and shaft seals.
2. Check pitch control cables for wear.
3. Adjust blade speed.
CA4-4H TROWEL — MAINTENANCE
ALWAYS allow the engine to cool beforeservicing. NEVER attempt any maintenancework on a hot! engine.
NOTE
NOTE
At the front of the book (Page 9) there is a “Daily Pre-OperationChecklist ”. Make copies of this checklist and use it on a dailybasis.
CAUTIONCAUTIONCAUTIONCAUTIONCAUTION
CAUTIONCAUTIONCAUTIONCAUTIONCAUTIONDisconnect the spark plug wire from the spark plug andsecure away from the engine before performingmaintenance or adjustments on the machine.
1. Remove the trowel blades from the trowel arm by removingthe two hex head bolts (Figure 26) from the trowel arm. Setblades aside.
Figure 26. Trowel Blades
2. Wire brush any build-up of concrete from all six sides of thetrowel arm. Repeat this for the remaining three arms.
CA4-4H TROWEL — MAINTENANCE
■ Does the trowel have a perceived rolling or bouncingmotion when in use?
■ Look at the trowel while it is running, does the guardring “rock up and down” relative to the ground?
2. Start engine, and bring trowel blades up to full speed and lookfor the following conditions:
a. Remove the zerk fitting and allen head screw desig-nated by the letter "S" (Figure 24). In addition, on theopposite side of the spider block there is another zerkfitting and allen head screw, remove both of thesecomponents.
Spider Removal
1. Once it is determined that an adjustment is required, removethe spider assembly from the gearbox shaft as follows:
Figure 24. Spider/Gearbox Removal
b. Lift the upper trowel assembly off the spider assembly.A slight tap with a rubber mallet may be necessary todislodge the spider from the main shaft of the gearbox.
Trowel Arm Removal
1. Remove the two remaining zerk fittings and allen headscrews from the spider assembly (Figure 25).
Figure 25. Trowel Arms Removal
CAUTIONCAUTIONCAUTIONCAUTIONCAUTIONDisconnect the spark plug wire from the spark plug andsecure away from the engine before performingmaintenance or adjustments on the machine.
1. Using a piece of 19 mm (3/4 in.) thick steel plate or any surfacewhich is true and flat, check all six sides of each trowel armfor flatness.
2. Check each of the six sides of the trowel arm (hex sectiononly) using a ten thousands of an inch (max.) feeler gauge(Figure 27) between the flat of the trowel arm and an ex-tremely flat test surface.
3. If the trowel arm is found to be uneven or bent, replace thetrowel arm. A bent trowel will not allow the trowel to operatein a smooth fluid rotation.
4. Next, check each of the six sides of the round machined shaftsection of the trowel arm. Each section should have the sameclearance between the round of the trowel arm shaft and thetest surface.
Figure 27. Trowel Arm Flatness Test
CA4-4H TROWEL — MAINTENANCE
Trowel arms can bedamaged by roughhandling or by strikingexposed plumbing orforms while in operation.ALWAYS look-out forobjects which mightcause damage to thetrowel arms.
Re-Assembly
1. Clean and examine the lower wear plate, thrust collar andthrust collar bushing. Examine the entire spider assembly.Wire brush any concrete or rust build-up. If any of the spidercomponents are found to be damaged or out of round,replace them.
2. Insert all trowel arms (4) into spider plate.
3. Lock trowel arms in place by tightening the hex head zerkgrease fittings (4) and allen head screws (2).
4. Re-install the blades back onto the trowel arms.
5. Reinstall lower wear plate, thrust collar and thrust collarbearing in the reverse order that they were dis-assembledonto the spider shaft. Make sure that there is little or no lateralmovement between the thrust collar and the spider shaft.
6. Carefully lift the upper trowel assembly, line up the key-way on gear box main shaft and insert into spider assembly.
7. Lubricate all grease points (zerk fittings) with premium"Lithum 12" based grease, conforming to NLG1 Grade #2consistency.
We recommend that all the blades be changed at the sametime. The machine may wobble or bounce if only some of theblades are changed at one time.
1. Place the machine on a flat, level surface. Adjust the bladepitch control to make the blades as flat as possible. Note theblade orientation on the trowel arm.
Before removing the blades,please note the orientationof the blade on the trowelarm.
1. Remove the two bolts and lock washers that secure the bladeto the trowel arm. Remove the blade.
2. Using a wire brush, scrape all concrete particles and foreigndebris from the trowel arm.
3. Install the new trowel blade onto the trowel arm. Make sureblade is installed correctly, maintaining the proper orienta-tion for direction of rotation.
4. Reinstall the two bolts and lock washers that secure theblade to the trowel arm. Tighten both bolts securely.
5. Repeat steps 1 - 4 for all remaining blades.
CA4-4H TROWEL — MAINTENANCE
Hand Clutch Adjustment
This trowel is equipped with a hand-operated clutch that is a belt-tightener type clutch. It operates by removing slack in the V-beltwhich then transmits power from the engine to the gearbox.
There are two reasons to adjust the hand clutch: 1) operatorcomfort; 2) initial belt stretch and break-in.
The easiest and most simple adjustment is to adjust the clutchcable housing using the adjustment nut (Figure 28) located on theclutch lever. Rotating the nut provides either more or less(depending upon the direction of rotation) clutch engagement.
Hand Clutch Disengagement
1. Start the trowel as outlined in the "Initial Start-up" section inthis manual. Move the throttle lever so that the engine isrunning about 1/4 to 1/3 of full speed.
2. Grip the trowel handle firmly and carefully engage the clutchby squeezing the clutch lever toward the handle with your lefthand. After the trowel is stabilized and you feel comfortablewith its operation, use your right hand to adjust the housingadjustment nut.
3. Rotating the nut so that it backs out of the lever housingincreases the engagement and also the squeezing forcerequired to keep it engaged.
Too much squeezing force may cause premature handfatigue. Too little squeezing force may cause belt slippageand premature belt wear. Each operator should experimentwith the adjustment to get the optimum combination ofsqueeze force and belt grip.
4. After initial break-in (approximately 8 hours) the aboveprocedure should be repeated to attain optimum operatorcomfort and belt wear.
5. After considerable belt wear, the adjustments mentionedabove may have a little or no effect on clutch engagement. Ifthis is the case, the belt should be replaced.
NOTE
WARNINGWARNINGWARNINGWARNINGWARNINGNEVER attempt to override the manual clutch by usingtape or other means to hold down the clutch lever. Doing somay cause SEVERE INJURY.
Check the manual clutch oc-casionally for proper operation.Checking operation of themanual clutch at the begin-ning of operation andperiodically serves as a safetycheck verification.
How to read the marks and remarks used in this parts book.
Section 1: Items Found In the “Remarks” ColumnSerial Numbers-Where indicated, this indicates a serial numberrange (inclusive) where a particular part is used.
Model Number-Where indicated, this shows that thecorresponding part is utilized only with this specific model numberor model number variant.
Items Found In the “Items Number” ColumnAll parts with same symbol in the number column, *, #, +, %, or>, belong to the same assembly or kit.
Note: If more than one of the same reference number is listed,the last one listed indicates newest (or latest) part available.
CA4-4H TROWEL — EXPLANATION OF CODES IN REMARKS COLUMN
The contents of this partscatalog are subject to changewithout notice.
All parts orders will be shipped collect orprepaid with the charges added to the invoice.All shipments are F.O.B. point of origin.Multiquip’s responsibility ceases when a signedmanifest has been obtained from the carrier,and any claim for shortage or damage must besettled between the consignee and the carrier.
MINIMUM ORDER
The minimum charge for orders from Multiquipis $15.00 net. Customers will be asked forinstructions regarding handling of orders notmeeting this requirement.
RETURNED GOODS POLICY
Return shipments will be accepted and creditwill be allowed, subject to the followingprovisions:
1. A Returned Material Authorization (RMA)must be approved by Multiquip prior toshipment.
2. To obtain a Return Material Authorization,a list must be provided to Multiquip PartsSales that defines item numbers,quantities, and descriptions of the items tobe returned.
a. The parts numbers and descriptionsmust match the current parts pricelist.
b. The list must be typed or computergenerated.
c. The list must state the reason(s) forthe return.
d. The list must reference the salesorder(s) or invoice(s) under whichthe items were originally purchased.
e. The list must include the name andphone number of the personrequesting the RMA.
3. A copy of the Return MaterialAuthorization must accompany the returnshipment.
4. Freight is at the sender’s expense. Allparts must be returned freight prepaid toMultiquip’s designated receiving point.
PRICING AND REBATES
Prices are subject to change without priornotice. Price changes are effective on a specificdate and all orders received on or after that datewill be billed at the revised price. Rebates forprice declines and added charges for priceincreases will not be made for stock on hand atthe time of any price change.
Multiquip reserves the right to quote and selldirect to Government agencies, and to OriginalEquipment Manufacturer (OEM) accounts whouse our products as integral parts of their ownproducts.
SPECIAL EXPEDITING SERVICE
A $35.00 surcharge will be added to the invoicefor special handling including bus shipments,insured parcel post or in cases where Multiquipmust personally deliver the parts to the carrier.
LIMITATIONS OF SELLER’S LIABILITY
Multiquip shall not be liable hereunder fordamages in excess of the purchase price of theitem with respect to which damages are claimed,and in no event shall Multiquip be liable for lossof profit or good will or for any other special,consequential or incidental damages.
LIMITATION OF WARRANTIES
No warranties, expressed or implied, are madein connection with the sale of parts or tradeaccessories nor as to any engine notmanufactured by Multiquip. Such warrantiesmade in connection with the sale of new,complete units are made exclusively by astatement of warranty packaged with suchunits, and Multiquip neither assumes norauthorizes any person to assume for it anyother obligation or liability whatever inconnection with the sale of its products. Apartfrom such written statement of warranty, thereare no warranties, expressed, implied orstatutory, which extend beyond the descriptionof the products on the face hereof.
5. Parts must be in new and resalablecondition, in the original Multiquip package(if any), and with Muiltiquip part numbersclearly marked.
6. The following items are not returnable:
a. Obsolete parts. (If an item is in theprice book and shows as being re-placed by another item, it is obsolete.)
b. Any parts with a limited shelf life(such as gaskets, seals, “O” rings,and other rubber parts) that werepurchased more than six monthsprior to the return date.
c. Any line item with an extended dealernet price of less than $5.00.
d. Special order items.
e. Electrical components.
f. Paint, chemicals, and lubricants.
g. Decals and paper products.
h. Items purchased in kits.
7. The sender will be notified of any materialreceived that is not acceptable.
8. Such material will be held for five workingdays from notification, pendinginstructions. If a reply is not receivedwithin five days, the material will bereturned to the sender at his expense.
9. Credit on returned parts will be issued atdealer net price at time of the originalpurchase, less a 15% restocking charge.
10. In cases where an item is accepted forwhich the original purchase documentcan not be determined, the price will bebased on the list price that was effectivetwelve months prior to the RMA date.
11. Credit issued will be applied to futurepurchases only.
PRICING AND REBATES
Prices are subject to change without priornotice. Price changes are effective on a specificdate and all orders received on or after that datewill be billed at the revised price. Rebates forprice declines and added charges for priceincreases will not be made for stock on hand atthe time of any price change.
Effective: October 1, 2002 TERMS AND CONDITIONS OF SALE — PARTS
BRAZILMULTIQUIPAv. Evandro Lins e Silva, 840 - grupo 505 Tel. 011-55-21-3433-9055Barra de Tijuca - Rio de Janeiro Fax 011-55-21-3433-9055RJ CEP 22631-470Contact: [email protected], [email protected]