WW5

Sp en c er Po w er Mi zer Mu l t i s t ag e Cen t r i f u g al Cas t B l o w er s

Op er at i n g an d Mai n t en an c e Man u alSerial No. Model No.

Read and become familiar with this manual prior to installing your Spencer blower. Following the instructions detailed here will help you realize its full potential of efficient service and extended lifespan. Damage resulting from failure to follow correct procedure will void the warranty.

Im p o r t an t

Fo r m WW6.3

Co n t e n t s

II L i m i t ed War r an t y ..........................................................3 III Saf et y Pr ec au t i o n s an d Op er at i n g Gu i d el i n es ..........4 IV Han d l i n g an d St o r ag e ..................................................4 4 Lifting and Moving ..........................................................4 5 Storage ...........................................................................5 5 Unpacking.......................................................................5 V In s t al l at i o n .....................................................................5 5 Location ..........................................................................5 5 Foundation......................................................................5 5 Blower Setup ..................................................................5 5 1. Piping ....................................................................5 5 2. Flexible Connectors ..............................................5 6 3. Butterfly Valve .......................................................6 6 4. Filters, Silencers and Filter Silencers....................6 6 5. Check Valve ..........................................................6 6 6. Electrical................................................................6

I In t r o d u c t i o n ...................................................................2 3 Product Description ........................................................3

Pag e

Welcome as a Spencer customer and owner of a new Power Mizer centrifugal blower. Your blower incorporates the latest engineering and casting technology, based on more than a century of Spencer leadership in blower design and manufacture. This manual contains the information you need for handling, installing, operating and maintaining your new equipment correctly, to ensure trouble-free operation and long service life. Please read it thoroughly.

I. In t r o d u c t i o n

If you have any questions about the procedures or recommendations presented, call your Spencer Representative for advice. The Spencer Service and Engineering Departments are also available to provide assistance. Be sure the machine model number and serial number are correctly recorded in the boxes on the front cover of this manual. These numbers may be found on the nameplate (see sample below) located on the blower discharge head.

1 Flexible Couplings ........................................................10 VIII Mai n t en an c e ................................................................10 1 Blower Bearing Removal and Replacement .................10 1 Bearing Illustrations ......................................................11 1 Labyrinth Seal Removal and Replacement ..................12 1 Field-Replaceable Parts ...............................................13 1 Equipment Service .......................................................13 1 Material Safety Data Sheets.........................................13 1 Emergency Service ......................................................13 1 Service and Operating Assistance................................13 IX Tr o u b l es h o o t i n g Gu i d e ..............................................13 1 Insufficient Air or Gas....................................................13 1 Machine Noisy ..............................................................14 1 Motor Hot ......................................................................14 1 Vibrating Machine .........................................................15 1 Oil Leaks.......................................................................15

8 Surge ..............................................................................8 8 Normal Operating Limits .................................................8 8 Periodic Operation ..........................................................8 8 Parallel Installation .........................................................8 VII L u b r i c at i o n ....................................................................8 8 Motor Bearings ...............................................................8 8 Blower BearingsGrease Lubricated ............................8 9 Blower BearingsOil Lubricated....................................9

6 7. Coupling Alignment ...............................................6 7 8. Bearing Lubrication ...............................................7 7 9. Shaft Seals............................................................7 7 10. Motor Rotation.......................................................7 VI Op er at i o n an d A d j u s t m en t s .........................................7 7 Startup Precautions ........................................................7 8 Blower Startup ................................................................8

Having this information easily accessible will expedite parts orders and other communication with the factory. To serve your maintenance and repair needs promptly, Spencer maintains a large inventory of parts for all blower models. Fieldreplaceable parts are listed on page 13.

Serial No.

Read instruction manual before handling and starting equipment.

Sp en c er Po w er Mi zer B l o w erModel No.

Made in U.S.A.

The Spencer Turbine Company, Windsor, CT 06095 860-688-8361

Manufactured under the following Registered Trademark: 62,801; 140,976; 652,701; 1,854,029; 134,026; 341,418; 1,348,270; 959,254

Plate No. PLN-90055

2

The internal rotor assembly consists of a steel shaft supporting cast aluminum alloy impellers with varying combinations of radial and backward curved blades. The impellers are individually dynamically balanced, then keyed to the shaft and the impeller/spacer stack is secured with a locknut. Finally, the complete rotor assembly is checked to be sure the total amplitude of vibration is no more than 0.23 in/sec at the bearing housing. The rotor assembly is supported at both ends by antifriction bearings designed for an L-10 bearing life of 100,000 hours. Depending on intended blower use, either labyrinth seals or carbon ring seals are provided. See page 7 for Shaft Seal discussion.

The blower casing has three main sections constructed of cast iron: inlet, return channels and discharge. The inlet and discharge are flanged and drilled to ANSI 125#/150# standards. External steel tie rods hold the return channels between the inlet and discharge sections. There are no external moving parts except the shaft that connects to the power source typically an electric motor, but other drivers such as a steam turbine or internal combustion engine are available.

Spencer Power Mizer blowers are multistage centrifugal units which handle air and other gases, working either as blowers or exhausters. They increase the pressure of the incoming air or gas by guiding it from one stage to the next through diffusers. They are centrifugal because the flow through the blower is turned perpendicular to the axis of rotation.

Pr o d u c t Des c r i p t i o n

Series 7000 and 8000 blowers are also equipped with an internal balance piston. As the largest Power Mizer models, these blowers develop high differential pressures with correspondingly high thrust loads. The balance piston is designed to lessen the thrust load, protecting the bearings from overloading. We warrant that this product will be free from defects in material and workmanship for a period of 18 months from date of shipment or 12 months from date of startup, whichever comes first. Within the warranty period, we shall repair or replace, F.O.B. our Factory, such products that are determined by us to be defective.

II. L i m i t ed War r an t y

The guarantees of the motor, control and component manufacturers govern the extent of our guarantee on such equipment. Warranty work on motors, controls and components must be authorized by Spencer and must be performed in an authorized shop as designated by the motor, control and component manufacturers. The Spencer Turbine Company reserves the right to invoice all expenses incurred when repairs are made in the field at the specific request of a customer.

This warranty will not apply to any product which has been subjected to misuse, negligence or accident, or misapplied or improperly installed. This warranty will not apply to any product which has been disassembled, repaired or otherwise altered by any persons not authorized by the Spencer Service Department.

3

Use appropriately rated lifting equipment for installation, removal, or disassembly of heavy components. Remove inlet and discharge covers, silica gel bags and crating materials prior to blower installation. Inspect all openings for tools and foreign matter before connecting accessories or piping.

Read and follow all instructions in this manual. If you have any questions, consult your Spencer Representative.

III. Saf et y Pr ec au t i o n s an d Op er at i n g Gu i d el i n es

Each Spencer blower is carefully balanced and tested at the factory. For optimum performance, it must be handled with care during unloading and installation. Check the shipment for damage upon arrival; file any claims with the shipper and notify Spencer.

IV. Han d l i n g an d St o r ag e

Ensure that piping, machine guards and accessories such as filters or valves are properly installed and fastened.

Install flexible connectors on inlet and discharge flanges to isolate piping loads from the blower.

Confirm that the blower is level so that oil level readings will be accurate.

Be sure isolation pads are correctly located beneath the blower base. See page 5.

Avoid climbing on or over the blower; use proper staging and ladders for exterior machine access.

Perform all installing and operating procedures with care, following sound practices to avoid accidents and damage.

Moving of this equipment is the customer's responsibility and should be performed or directed by experienced riggers using accepted rigging practices and safety precautions. The blower/ motor assembly can be lifted and relocated with an overhead crane or hoist. Always use lifting equipment rated for the loads involvedsee accompanying table of approximate machine weights. A p p r o x i m at e Mac h i n e Wei g h t s (blower and base without motor) Model No. C13 C14 C15 CS22 CS23 CS24 CS25 CS26 CS27 CS28 CS29 CS210 C32 C33 C34 C35 C36 C37 C38 CS32 CS33 CS34 CS35 CS36 CS37 CS38 CS39 C42 177 188 200 913 1101 1290 1478 1667 1855 2044 2232 2421 1917 2225 2596 2928 3285 3688 4004 2130 2673 3196 3730 4263 4795 5328 5861 2576 lb Weight 80 85 91 414 499 585 670 756 841 927 1012 1098 870 1009 1178 1328 1490 1673 1816 966 1212 1450 1692 1934 2175 2417 2659 1169 kg

L i f t i n g an d Mo v i n g

CA UTION: Us e o f al t er n at i v e l i f t i n g m et h o d s s u c h as a f o r k l i f t i s n o t r ec o m m en d ed , d u e t o r i s k o f eq u i p m en t d am ag e o r m i s al i g n m en t . Weight kg

Model No. C43 C45 C46 C47 C48 C52 C53 C54 C55 C56 C57 C58 C62 C63 C64 C65 C66 C72 C73 C74 C75 C76 C81 C82 C83 C84 C85 C86

Fill oilers of oil-lubricated blower bearings with recommended type of fresh oil as instructed on page 7.

Allow only qualified electricians to work on electrical equipment. Align the coupling as instructed on page 6. Lock electrical circuits open and tag them during servicing of equipment.

Install a filter on the inlet when the blower is used in pressure service and keep it clean.

Check motor rotation as instructed on page 7.

Turn the blower shaft by hand to verify free rotation without rubbing or noise.

Remove alignment tools and replace coupling guard before restarting blower.

Do not allow blower operation in surge (unstable low flow) or damage may result. Use only genuine Spencer parts for repairs and service. Rotate shaft of stored or inactive blowers a few times by hand every week.

Operate blower with sufficient restriction at all times (via connected piping system or throttled butterfly valve) to avoid motor overloading.

Do not operate the blower where there is an ambient temperature above 104F (40C), unless it has been designed for such conditions.

3065 1390 4050 1837 4517 2049 4976 2257 5446 2470 3543 1607 4294 1948 5001 2268 5708 2589 6428 2916 7135 3236 7810 3574 4577 2076 5559 2521 6515 2955 7473 3389 8431 3823 10150 4604 12100 5489 14600 6623 17200 7804 20300 9207 14500 6577 18000 8165 21500 9752 25000 11340 28500 12927 32000 14515

lb

4

Use lifting eyes supplied on the blower base, along with a suitable quad leg chain sling or spreader bars with the smallest practical angle between the sling legs to minimize stress. CA UTION: Do n o t u s e s l i n g s ar o u n d t h e b l o w er ; t h ey w i l l b en d o r s t r es s t h e t i e r o d s . Nev er l i f t t h e b l o w er b y i t s s h af t . Do n o t d i s t u r b t h e o i l er s o r an y el ec t r i c al d ev i c es .

If a blower is stored for an extended period before use or between uses, protect it from dampness, dirt and vibration. Suspend bags of silica gel desiccant in the inlet and discharge. Cover the entire blower if possible or at least cover the inlet and discharge openings to keep out foreign matter. Rotate the blower shaft a few times by hand every week, keeping a log.

St o r ag e

Locate the motor pads under the vertical motor base supports, not necessarily directly under the motor feet. Four pads per side will avoid any springboard effect. Each pad must be shimmed, if necessary, to ensure that it is carrying its share of the load. If lag bolts and nuts are used to restrain the blower, hand-tighten only. NOTE: Spencer does not favor grouting; however grouting may be used consistent with established practice. Do not use isolation pads when grouting.In l e t Di s c h ar g e

A level concrete pad is recommended, although any flat level surface that can support the machine weight is satisfactory. The blower base should be placed level on the furnished isolation pads or equivalent. The number and location of pads are important. Pads must be located directly under a support for maximum performance. Locate one pad under each supporting member of the blower.

CA UTION: Fai l u r e t o c o m p l y w i t h t h e r eq u i r ed s t o r ag e p r o v i s i o n s , i n c l u d i n g w eek l y s h af t r o t at i o n s , w i l l v o i d t h e w ar r an t y.

1. Uncrate the blower, saving all literature, boxes and parts.

4. Read any instructional and warning labels on the machine before installation and operation.

3. Use the packing slip to check off and confirm the presence of all ordered components.

2. Remove inlet and discharge protective caps and all packing materials.

Un p ac k i n g

B u t t er f l y Val v e

Flexible Connectors

Ch ec k Val v e

NOTE: If any problems are encountered during installation or startup, consult your local Spencer Representative. CA UTION: Do n o t l o c at e b l o w er o r c o n t r o l s w h er e t h ey w i l l b e s u b j ec t t o a m b i en t t e m p e r at u r es a b o v e 1 04 F (40C) d u r i n g o p er at i o n , u n l es s s p ec i al l y eq u i p p ed f o r h i g h er t em p er at u r es .

L o c at i o n

V. In s t al l at i o n

CA UTION: Mak e s u r e b l o w er i n l et an d d i s c h ar g e p o r t s ar e u n o b s t r u c t ed b ef o r e c o n n ec t i n g p i p i n g t o b l o w er. All piping connected to the blower should be of ample size to minimize frictional loss. All system joints must be airtight; leaky pipes waste air and power.

B l o w er Set u p

Rec o m m en d ed Pad L o c at i o n s

(Shim if necessary.)

NOTE: Duct noise attenuation is a customer responsibility.

Consideration should be given to the noise generated by this equipment and its contribution to the ambient noise level. Optional noise reduction accessories include blower casing sound attenuation jackets, filter silencers or silencers for the blower inlet and/or discharge, and silencers for the motor.

Power Mizer blowers may be installed outdoors, preferably under cover, or indoors. When choosing an indoor location, be sure there is sufficient ventilation to allow unrestricted airflow to the blower. In addition, it is advisable to leave several feet of space around the blower and motor for ease of servicing. Inaccessibility can prove costly.

1. Pi p i n g

CA UTION: Oi l -l u b r i c at ed m ac h i n es m u s t b e l ev el o r o i l l ev el r ead i n g s w i l l b e i n ac c u r at e.

Fo u n d at i o n

NOTE: The diagram above shows the proper orientation of a piping elbow in-line with the blower shaft. The butterfly valve should have its shaft at right angles to the blower shaft and the valve should open as indicated (counterclockwise in this example). These steps will assure uniform loading of the blowers first stage.

All piping must be properly aligned and supported to avoid stress on the blower and restrained to prevent movement away from the blower caused by air pressure. Flexible connectors must be used to connect piping to the blower.

CA UTION: Co n nec t ed p i p i n g m u s t n o t t o u c h t h e b l o w er. Us e f l ex i b l e c o n n ec t o r s (ex p an s i o n j o i n t s o r r u b b er s l eev es ) o n b o t h t h e i n l et an d d i s c h ar g e t o c r eat e an i s o l at i n g g ap b et w een b l o w er an d p i p i n g .

2. F l ex i b l e Co n n ec t o r s

5

To regulate (throttle) blower volume and/or pressure, a butterfly valve may be installedpreferably on the inlet. A valve may also be installed on the discharge as an isolation valve. Spencer blowers will accept a filter or filter silencer, typically on the inlet, and a silencer, typically on the discharge. Inlet filtration is recommended for pressure applications. CA UTION: A c h ec k v al v e m u s t b e i n s t al l ed i n t h e d i s c h ar g e l i n e (d o w n s t r eam o f an y b l o w -o f f l i n e) o f eac h b l o w er o p er at i n g i n p ar al l el , o r i n t h e i n l et l i n e (u p s t r eam o f an y b l eed l i n e) o f eac h v ac u u m p r o d u c er o p er at i n g i n p ar al l el t o p r ev en t r ev er s e f l o w t h r o u g h i d l e u n i t s .

3. B u t t er f l y Val v e

4. Fi l t er s , Si l en c er s an d Fi l t er Si l en c er s 5. Ch ec k Val v e

Imperfections or unevenness between the machine base and any foot of the motor or blower creates a condition known as soft foot, which may be parallel or angular. If uncorrected, soft foot leads to increased stress and high vibration. Although both the motor and blower feet were preset at the factory, each foot must be checked for soft foot prior to alignment. Any vertical or angular soft foot that exceeds .003" is excessive and must be corrected. Laser alignment is the only method Spencer uses and the only one it recommends. Laser aligned systems have significant advantages such as reduced maintenance costs and energy consumption; prolonged life for bearings, seals and couplings; decreased bearing temperatures and lower vibration levels. Many laser systems also identify and measure soft foot conditions. NOTE: Consult an alignment specialist if laser equipment is not available.

Mac h i n er y So f t Fo o t

L as er A l i g n m en t Tec h n i q u e

Orient the check valve during installation to equalize loading on the valve shutters. Usually, the hinge post of the check valve should be installed perpendicular to the blower shaft. If the check valve is installed in a horizontal piping line, position the valve shaft vertically. Make sure the internal moving parts can move freely. NOTE: All wiring and electrical adjustments or installations must be done by a qualified electrician in accordance with the National Electrical Code and local codes.

6. El ec t r i c al

El ect r i c al A cc es s o ri es . The following optional safety accessories are available from Spencer. For copies of the product bulletins listed, contact your Spencer representative or www.spencerturbine.com. Electronic Modulating Bleed Control (EMBC) Bult. No. TDS-224 Load Control Safety Switch (LCSS) Bult. No. TDS-223

CA UTION: Th e el ec t r i c al s er v i c e at t h e i n s t al l at i o n s i t e m u s t s u p p l y t h e v o l t ag e s t am p ed o n t h e m o t o r n am ep l at e. Op er at i o n at an i n c o r r ec t v o l t ag e m ay d am ag e t h e m o t o r an d v o i d i t s w ar r an t y.

Alignment should be performed at normal operating temperatures. Recommended factory tolerance is .004" parallel and 1/4 angular at operating conditions. Make sure the blower is level before alignment.

Use of a laser system eliminates the need to break the coupling halves. The coupling gap may be left at the factory setting. (Kop-Flex model B coupling gaps are 1/8" up to size 2-1/2" and 3/16" for sizes over 2-1/2".)

Co u p l i n g Gap A d j u s t m en t

A l i g n m en t Ti p s

Mark the axial location of the motor before alignment as a reference point to be sure it does not move. Do soft foot corrections first; loosen all mounting bolts before correcting any foot. During the final vertical adjustment of the motor, work on one side at a time, loosening the jack bolts first so the motor does not move laterally as mounting bolts are loosened. Use the smallest shim that will slide over the mounting bolts.

Avoid disturbing any factory-installed shims unless they are to be replaced.

Bearing Temperature Monitor Control (BTMC) Bult. No. TDS-222

NOTE: Use of a BTMC, vibration monitor and an LCSS or EMBC may be advisable in crucial or unattended applications, anywhere there are wide load fluctuations, or where machines are operating at high pressure or vacuum. Both the LCSS and EMBC are designed to prevent a blower or vacuum producer from operating in a low load (surge) condition.

Standard Blower Safety Control Panels (LCSS, BTMC and VM, Vibration Monitor) Bulletin No. TDS-237 and TDS-236

Minimize the number of shims. One thick shim and 23 thin shims are usually satisfactory. Use stainless steel shims only. Never reuse shims. Remove all traces of dirt or contaminants from shims and machine parts. CA UT I ON : A f t e r e ac h a l i g n m e n t c h ec k , ad d c o u p l i n g l u b r i c an t i f r eq u i r ed . Co u p l i n g L u b r i c at i o n (g r eas e l u b r i c at ed )

Good coupling alignment is critical for smooth machine operation. Pre-s t ar tu p al ig nm ent is n ec es s ar y an d i s a cu s to mer r es p o n s i b i l i t y. Spencer recommends that each blower be field aligned using a laser alignment system. Only qualified personnel, following the laser equipment manufacturer's instructions, should attempt coupling alignment. WA RNING: DISCONNECT A ND L OCK OUT EL ECTRICA L POWER B EFORE PERFORMING A L IGNMENT.

7. Co u p l i n g A l i g n m en t

Two coupling lubrication ports are located 180 apart. Remove the setscrew lube plugs from both ports. Install grease fitting in one port and rotate the coupling until the grease fitting is angled down at 45. Pump lubricant in until it appears at the upper port. Remove the grease fitting; replace and tighten the lube plugs.

6

WA RNING: REPL A CE THE COUPL ING GUA RD B EFORE RESTA RTING THE B L OWER.

B l o w er B ear i n g s Gr eas e L u b r i c at ed . These bearings are packed at the factory and do not need greasing prior to startup. If, however, the blower has been stored for three months or longer, remove the bearing caps and check for moisture or hard grease. Discard any hard or dry grease and relubricate if necessary. B l o w er B ear i n g s Oi l L u b r i c at ed . The type and quantity of oil are very important. Use only Mobil SHC626 synthetic oil or one of these equivalents: Exxon TRESSTIC SHP synthetic oil, ISO Grade 68 ROYCO synthetic compressor fluid #468 Royal Purple Synfilm Grade 68 Co n s t an t L ev el Oi l er s Amoco Syntholube SL compressor oil, ISO Grade 68 CA UTION: Do n o t m i x o i l s ; t h o r o u g h l y d r ai n t h e b ear i n g s u m p an d o i l er b ef o r e c h an g i n g t o a d i f f er en t b r an d o f o i l .

Mo t o r B ear i n g s . Follow the motor manufacturers recommendations. Some motors are equipped with sealed bearings not intended for relubrication; these motors have no grease or drain plugs.

8. B ear i n g L u b r i c at i o n

NOTE: Blower inlet and discharge pressures are different, therefore purge pressures at the inlet and discharge seals should be established and regulated separately.

CA UTION: Do n o t o p er at e d o u b l e c ar b o n r i n g s eal s w i t h o u t a p r o p er l y p r es s u r i zed p u r g e c o n n ec t i o n . Th i s w i l l r en d er t h e s eal i n ef f ec t i v e an d c o u l d d am ag e i t .

A rotation arrow is located on the blower casing. Bump or jog the start button and observe the direction of rotation of the motor shaft. Rotation must be counterclockwise as viewed from the discharge end. If the rotation is incorrect, the motor wiring must be changed.

10. Mo t o r Ro t at i o n

Before operating a new blower for the first time, review its installation and setup to be sure that no steps have been overlooked. Is there any damage from transportation or installation, especially to the oiler and oiler bracket? Is the machine level? Are the oilers level and is the oil height set correctly? (Oil lubricated blowers only) Is the inlet filter in place? Are isolation pads in place? Are safety guards in place?

St ar t u p Pr ec au t i o n s

VI. Op er at i o n an d A d j u s t m en t s

Some Spencer oil-lubricated blowers are equipped with constant level oilers (one each bearing housing). These maintain an established oil level by replacing the oil lost through seals, vents and various components in the bearing housing and sump. The oiler itself is replenished by periodically refilling the reservoir (upper portion of the oiler). Because maintenance of the correct oil height is critically important, Spencer constant level oilers incorporate a tubular spout fitted with a view port and oil level scribe line. NOTE: Constant level oilers cannot reduce oil levels that are too high.

1. In s t al l at i o n Ch ec k L i s t

Have all packing, shipping materials and tools been removed? Is the piping connected and supported?

Are flexible connectors in place between blower and piping?

Use only approved lubricants.

See Section VII on Lubrication for verifying the correct oil height.

Are the oilers filled? (Oil lubricated blowers only) Is the coupling aligned within tolerances? Is the throttling valve closed or properly positioned? Do the blower shaft and driver spin freely? Is the isolation valve (if any) open? Has rotation been checked? Is the system ready for air or gas delivery? Are motor and electrical accessories properly wired? Is the control panel energized? Have maintenance and operations personnel been notified? CAUTION: Th is bl ow er mu s t h av e adeq uate sy st em r es is t an ce at al l ti mes to avo i d o per at io n at o r near f ree del iv er y (w i d e o p en ). It i s t y p i c al l y i m p o s ed b y t h e p r o c es s an d s u p p l em en t ed w i t h a t h r o t t l i n g v al v e. Ru n n i n g t h e b l o w er o v er l o ad ed w i l l d am ag e t h e m o t o r.

2. A d j u s t m en t Ch ec k s

Shaft seals at both the inlet and discharge ends minimize leakage of gas into or out of the blower. Cast aluminum labyrinth seals are standard; single and double carbon ring seals are optional. NOTE: Series 2500 and 3500 blowers intended for gas service are equipped with an inlet end single carbon ring shaft seal and a discharge end sealed bearing housing.

9. Sh af t Seal s

3. O p er at i o n al Ch ec k s

Blowers equipped with double carbon ring seals have purge connections extending from each bearing housing which must be connected to a supply of nitrogen or filtered shop air. The supply should be regulated so the purge gas pressure at both the inlet and discharge is approximately 0.5 PSI greater than the process pressure.

7

With the system connected and the throttling valve closed, turn the blower on. Quickly assess the current draw of the motor. Adjust the system load or throttling valve until the desired flow is reached, being careful not to exceed the fullrated motor capacity. Initially, blowers will temporarily develop more differential pressure and take more power. Check final settings after operating temperature is achieved, typically after one-half hour. If the throttling valve is not fully open when the motor capacity has been reached, it should be fixed at this point to prevent further opening and possible overloading of the motor. CA UTION: Do n o t o p er at e b l o w er i n s u r g e (u n s t ab l e l o w f l o w r an g e). Dam ag e t o b l o w er c au s ed b y o p er at i n g i n s u r g e i s n o t c o v er ed b y Sp en c er w ar r an t y.

B l o w er St ar t u p

When operating two or more blowers in parallel (typically identical blowers), each must carry its share of the load. The current readings of all motors should be approximately the same. It may be necessary to readjust the individual throttling valve stops to attain similar readings. WA RNING: DISCONNECT A ND L OCK OUT EL ECTRICA L POWER B EFORE PERFORMING L UB RICATION. CA UTION: Mai n t ai n ex t r em e c l ean l i n es s t o av o i d b ear i n g c o n t am i n at i o n an d d am ag e.

VII. L u b r i c at i o n

1. Su r g e

A blower in surge produces a rush or pulsating rhythmic air sound caused when airflow into or out of the blower is restricted. In addition to its characteristic noise, surge may be detected by power or pressure fluctuations. Surge is potentially destructive because it is accompanied by excessive temperatures and aerodynamic forces that will ultimately cause mechanical failure. A surge condition is simply eliminated by increasing the airflow either into the system or to a bypass or vent. Various surge control devices are also available from Spencersee page 6.

Follow the motor manufacturers recommendations. Some motors are equipped with sealed bearings not intended for relubrication; these motors have no grease or drain plugs. Use Chevron SRI #2 grease. Intermixing incompatible greases or using any other type may result in bearing failure which is not covered under the Spencer warranty. Grade or consistency ...........................................................#2 ASTM Dropping Point ....................................................480F Ch ev r o n SRI #2 Gr eas e Sp ec i f i c at i o n s Thickener ...................................................................polyurea Work Penetration ...............................................................270 Base Oil Viscosity.......................................600 SUS @ 100F Relubricate approximately every six months, according to the following table. Normal Conditions 40005000 hours Rec o m m en d ed L u b r i c at i o n In t er v al s Extreme Conditions* 20003000 hours Color ......................................................................Blue-Green

Mo t o r B ear i n g s

B l o w er B ear i n g s Gr eas e L u b r i c at ed

NOTE: If a blower surges violently at startup, avoid recurrences by leaving the throttling valve open at or near its normal operating position.

NOTE: Use of a Spencer bearing temperature monitor and vibration monitor is recommended to alert personnel to blower operation outside the following limits. Vibration should not exceed 0.23 in/sec at the bearing housing. Bearing temperatures should not exceed 220F (104C) at the bearing housing surface.

2. No r m al Op er at i n g L i m i t s

If abnormal operation is detected, shut the blower down and refer to the Troubleshooting Guide on page 14 or contact Spencer. CA UTION: A l l b l o w er s s h o u l d b e o p er at ed p er i o d i c al l y.

3. Per i o d i c Op er at i o n

*Excessive heat, moisture, dust or corrosive conditions.

In multiple blower installations, periodically rotate each blower from standby to operating status. CAUTION: A c hec k val ve mu st be in st all ed in th e d is c harg e l in e o f eac h b lo wer o r i nl et of eac h vac uu m p ro d uc er op er ati ng in p arall el to pr ev ent r evers e f lo w t hr o ug h i dl e u ni ts . CA UTION: Do n ot o p er at e cen t r if u g al b l o wer s i n p ar all el w i t h p o s i ti v e d i sp l ac em en t b l ow er s . Su c h o per at i o n m ay d amag e th e c en t r i fu g al b l o w er s and w i ll v o id t h e w ar ran t y.

4. Par al l el In s t al l at i o n

NOTE: More bearing failures are caused by overgreasing than lack of lubricant. Add grease sparingly and only when the bottom drain plug is open. 1. Remove the bottom drain plug.

CA UTION: K eep t h e g r eas e c l ean ; an y d i r t o r c o n t am i n an t s w i l l d am ag e t h e b ear i n g s .

2. Probe the drain with a clean rod to free hardened grease.

5. After normal operating temperature is reached, replace the drain plug.

4. Restart the blower with the drain plug still removed to allow excess grease to escape. L u b r i c at i o n o f r ep l ac em e n t b ear i n g s . Before installing, butter both sides of replacement bearings by forcing grease into each side until the grease is flush with the race.

3. Inject new grease only until old grease appears at the drain. NOTE: Some housings have two grease fittings.

8

1. Drain oil (preferably when hot) by removing the drain plug in the bearing sump.

Each blower is shipped with an adequate amount of Mobil SHC626 oil for one oil change. The oil should be changed at least once a year. 2. Replace drain plug, fill the oiler and tighten the oiler screw cap finger tight. See Oil Filling section on page 7.

Use Mobil SHC626 synthetic oil or equivalent (see list, page 7).

CA UTION: If eq u i p p ed w i t h o i l er, k eep t h e o i l er at l eas t 1/3 f u l l at al l t i m es .

Gen er al Oil L u br i c at i o n In f o r m at i on

B l o w er B ear i n g s Oi l L u b r i c at ed

Note: Oilers nuisance feed as the reservoir is screwed off and on, which can lead to an overfilled sump. Screw on the oiler reservoir quickly to minimize overfilling. Tighten the reservoir only hand-tight.

Allow the oil to stabilize for one hour. Fill the oiler with Mobil SHC626 or equivalent, replace the oiler reservoir, and tighten it to allow the oiler to feed. Repeat as necessary until the oiler stops feeding (bubbles stop appearing). The oil level should be at or slightly above the center of the oiler sight glass (lower portion of oiler). Oi l Hei g h t Set t i n g s

Ser i es 3000, 4000, 5000, 6000

CA UTION: A l o o s e o r o v er t i g h t s c r ew c ap w i l l c au s e o i l er m al f u n c t i o n . Do n o t d i s t o r t t h e c ap O-r i n g b y o v er t i g h t en i n g . Oi l er Ti p s

There are several O-rings and gaskets in the oiler; leaks at any point can cause trouble. For example, if there is a leak in the oiler reservoir, the oiler will overfill the bearing sump. Keep the oiler parts cleandirt or contamination can initiate a leak. Air leaks above the oil level do not produce bubbles, even as the oil feeds. B en c h Tes t i n g Oi l er s Pressures in the oiler and oil sump must be equal. Do not remove the vent line while the blower is operating.

The following instructions apply only to Power Mizer Series 3000, 4000, 5000 and 6000 blowers, which have adjustable oilers. Both bearings on these blowers must be checked for proper oil height settings before starting. Oiler level settings are preset at the factory, but an uneven foundation or shipping damage can disturb them. CA UTION: Oi l h ei g h t s et t i n g s ar e c r i t i c al . Th e o i l h ei g h t i n a b e ar i n g s u m p m u s t b e m a i n t ai n e d w i t h i n a n ar r o w r an g e t o l u b r i c at e t h e b ear i n g c o r r ec t l y. To o m u c h o r t o o l i t t l e o i l w i l l l ead t o ex c es s i v e h eat g en er at i o n , d eg r ad i n g t h e o i l an d s h o r t en i n g t h e b ear i n g l i f e.

First, be sure the sump and oiler are level. The oiler may be leveled or the oiler height adjusted by loosening the 8mm oiler bracket bolt. Leave some tension on the bolt to keep the oiler from moving too freely. With a small carpenters level, line up the oiler scribe lines with the sump sight glass and set the oil height as follows. The inlet end bearing oil level scribe line should be set 1/16 below the bearing sump sight glass center. On the discharge end, however, the oil level scribe line should be even with the sight glass center.

Let the oiler sit for several hours. If oil fills the view port completely and is seeping out the vent hole, the seals are bad. The oiler needs to be repaired or replaced. Oi l Hei g h t Set t i n g s

5. When the fill cap is tightened securely, the oil in the view port should seek a level at or near the level mark scribed in the casting.

NOTE: When you close the fill cap, the check valve opens, allowing oil to fill the view port.

4. Quickly screw fill cap back on reservoir.

3. Remove fill cap and fill reservoir completely.

2. Plug outlets with pipe plugs.

1. Secure oiler so it is level in all directions.

Use the following procedure to trouble-shoot malfunctioning oilers that exhibit oil leaks or overfilling.

Once stabilized, the oil level observed in the view port is the oil height in the oil sump. After initial operation, a level of approximately 1/8"-1/4" above the initial setting is normal when the blower is idle. B ear i n g Oi l er

Ser i es 2500, 3500

Oi l L e v e l

Power Mizer Series 2500 and 3500 blowers have nonadjustable oilers hard-piped directly into the sump. There is no need to check oil height settings but make sure the sump and oiler are level. Replenish oil in the reservoir only after it drops below half full, which will reduce the number of refills. If the oiler needs frequent filling, this is not normallook for an oil leak. Fi l l i n g Oi l er s

NOTE: Oilers nuisance feed as the cap is screwed off and on, which can lead to an overfilled sump. Screw the oiler cap quickly to minimize overfilling. Tighten the cap only hand-tight.

Replenish oil in the reservoir only after it drops below half full, which will reduce the number of refills. If the oiler needs frequent filling, this is not normallook for an oil leak.

Fi l l i n g Oi l er s

9

The fill rate is slow on Series 3000, 4000, 5000, and 6000 machines. Let these machines sit, preferably overnight, until the oil is stabilized. If waiting is not possible, fill the sumps from the top ventrecognizing that this procedure can result in high oil levels as oil drains off internal components. Oi l Hei g h t Set t i n g s

Ser i es 7000, 8000

These illustrations (page 11) and instructions apply to the drive side of the blower. Bearings on the non-driven side are serviced the same, except the coupling guard, coupling, and motor need not be removed. Bearing housings are similar on both the inlet and discharge ends and serviced in a similar manner. B ear i n g Rem o v al Pr o c ed u r e 1. Remove the belt guard.

Power Mizer Series 7000 and 8000 blowers have nonadjustable oilers hard-piped directly into the sump. There is no need to check oil height settings but make sure the sump and oiler are level. Replenish oil in the reservoir only after it drops below half full, which will reduce the number of refills. If the oiler needs frequent filling, this is not normallook for an oil leak. Fi l l i n g Oi l er s

Ser i es 1500

3. Remove the belt pulley from the blower shaft.

4. Remove the bearing cap, locknut and lockwasher from the bearing housing.

2. Release the tension in the belt drive and remove the belt.

Allow the oil to stabilize for one hour. Fill the oiler with Mobil SHC626 or equivalent, replace the oiler screw reservoir, and tighten it to allow the oiler to feed. Repeat as necessary until the oiler stops feeding (bubbles stop appearing). The oil level should be at or slightly above the center of the oiler sight glass (lower portion of oiler). Use only approved lubricants (see page 7). CA UTION: Oi l er s m u s t b e f i l l ed an d c h ec k ed f o r p r o p er o i l l ev el af t er eac h o i l c h an g e.

Note: Oilers nuisance feed as the reservoir is screwed off and on, which can lead to an overfilled sump. Screw the oiler reservoir quickly to minimize overfilling. Tighten the reservoir only hand-tight.

5. After removal of the bearing housing screws, attach a flange type puller using the threaded holes for the bearing cap. Carefully remove the bearing housing and the bearing using the attached puller. 6. Remove the bearing from the bearing housing. B ear i n g Rep l ac em en t Pr o c ed u r e 1. Install components in reverse order of disassembly, starting with the installation of the bearing housing onto the blower. Ch ec k i n g an d A d j u s t i n g B el t Ten s i o n 1. Remove the belt guard. 2. Ensure that the bearing is completely seated on the shaft. 3. Lubricate according to the instructions on pages 8 and 9.

CA UTION: Do n o t m i x o i l s . Th o r o u g h l y d r ai n t h e b ear i n g s u m p an d o i l er b ef o r e c h an g i n g t o a d i f f er en t o i l . Couplings are lubricated at the factory with Texaco Code 1912 coupling grease and should be relubricated with identical or compatible grease every six months.

Fl ex i b l e Co u p l i n g s

2. Use a tension checker to measure the belt deflection force in lbs. Refer to belt catalog tables for the correct deflection and tension values for your specific combination of belts and pulleys. Correct belt tension has been achieved when the measured deflection falls within the recommended range. 4. Replace the belt guard.

3. Use the adjustment screws on the motor slide base to move the motor closer to the blower if belt tension is too high, or further from the blower if tension is too low.

Two coupling lubrication ports are located 180 apart. Remove the setscrew lube plugs from both ports. Install a grease fitting in one port and rotate the coupling until the grease fitting is angled down at 45. Pump lubricant in until it appears at the upper port. Remove the grease fitting and replace and tighten the lube plugs. WA RNING: DISCONNECT A ND L OCK OUT EL ECTRICA L POWER B EFORE PERFORMING MA INTENA NCE.

B ear i n g Rem o v al Pr o c ed u r e 1. Remove coupling guard.

Ser i es 2500, 3500

VIII. Mai n t en an c e

NOTE: Refer to the appropriate view for the blower series involved. Some bearing system details may vary from those illustrated. CA UTION: No t e an d r ec or d t h e o r i en tati o n o f t h e b ear i n g h o u s i n g an d c o m p o n en t s , t a k i n g c ar e t o r e t a i n t h ei r p o s i t i o n . Po s i t i o n i n g m ay v ar y b et w een g r eas e an d o i l l u b r i c at ed m ac h i n es .

B l o w er B ear i n g Rem o v al an d Rep l ac em en t

6. Remove bearing cap.

7. Remove shaft locknut, lockwasher, spacer, oil slinger, bearing retainer and sump if present. 8. Remove bearing housing bolts.

5. For oil-lubricated bearing, drain all oil by removing drain plug from the bottom of the bearing sump.

4. Use puller to remove blower coupling half. Apply heat if necessary.

3. Unbolt and move motor (if required).

2. Split the coupling halves, recording the relative position of the motor and blower shafts (not the coupling shells).

9. Using a two-arm puller and the two tapped puller holes (5/8" or 1/2") in the bearing housing, remove housing, bearing, bronze seal and grease slinger, if present, as a unit. 10. Drift the bearing out of the housing. Note: Watch for a thrust washer that some bearings have behind the bearing.

10

Ser i es 1500 (Gr eas e)

B ear i n g Ho u s i n g

Ser i es 2500, 3500 (Gr eas e)B ear i n g Gas k et B ear i n g Cap B ear i n g L o c k w as h er L o c kn u t

B ear in g Ho u si n g

Greas e Sl i n g er

B ear i n g Cap

L o ck n u t

L o c k w as h er

Ser i es 2500, 3500 (Oi l )L o c k w as h er L o c k n u t Sp a c e r

B ear i n g Ho u s i n g

Su m p

Gas k et

B ear in g

Gr eas e Sl in g er

Ser i es 3000, 4000, 5000, 6000 (Oi l )

Gas k et B eari n g Cap

Oi l Sl i n g er

B ear i n g Ho u s i n g

Oi ler B r ac k et

Ven t Ho s e

B ear i n g Cap

L o c kn u t

L o c k w as h er

B ear i n g s , B ac k t o B ac k

B r o n ze Seal Gas k et

Oi l e r Feed Ho s e

Ser i es 7000, 8000 (Oi l )

Gas k et

B ear in g Ho u si n g

NOTE: Refer to the appropriate view for the blower series involved. Some bearing system details may vary from those illustrated.

L o c k w as h er L o ck n u t Sl in g er Co v er B ear i n g Cap

B ear i n g Ret ai n er Sl i n g er Sp ac er Oi l Sl i n g er

B ear in g

Or i f i c e

Oi l e r ( A l s o a v a i l a b l e o n Ser i es 2500, 3500)

11

NOTE: No shaft support is needed; the shaft will be supported by the labyrinth seals. B ear i n g Rep l ac em en t Pr o c ed u r e CA UTION: Mai n t ai n ex t r em e c l ean l i n es s t o av o i d b ear i n g c o n t am i n at i o n an d d am ag e. Us e n ew g as k et s . 1. Install components in the reverse order of disassembly.

B ear i n g Rem o v al Pr o c ed u r e 1. Remove coupling guard.

Ser i es 3000, 4000, 5000, 6000

3. Lubricate according to instructions on pages 8 and 9.

2. Press the bearing onto the shaft until seated against the shoulder. Pusher kits are available from Spencer. NOTE: If present, oil slinger dimples should face the bearing.

10. Prepare the opposite cage area in the same manner and insert the second adapter. 12. Pull out bearing.

9. Using a blind housing puller kit (available from Spencer), insert the appropriate bearing adapter and rotate it 90 degrees to achieve a positive grip within the bearing race.

8. Open a section of the ball cage on the bearing and cut the swarf out.

7. Remove slinger cover, shaft locknut, lockwasher, spacer, oil slinger, and bearing retainer.

11. Connect both adapters to the main rod. Assemble beam and spindle.

7. Remove bearing cap.

8. Remove shaft locknut and lockwasher. 9. Remove bearing housing bolts.

6. For oil-lubricated bearing, disconnect oiler tubing and oiler if necessary.

5. For oil-lubricated bearing, drain all oil by removing drain plug from the bottom of the bearing sump.

4. Use puller to remove blower coupling half. Apply heat if necessary.

3. Unbolt and move motor.

2. Split the coupling halves, recording the relative position of the motor and blower shafts (not the coupling shells).

B ear i n g Rep l ac em en t Pr o c ed u r e

NOTE: No shaft support is needed; the shaft will be supported by the labyrinth seals.

CA UTION: Mai n t ai n ex t r em e c l ean l i n es s t o av o i d b ear i n g c o n t am i n at i o n an d d am ag e. Us e n ew g as k et s . 1. Install components in the reverse order of disassembly.

11. Drift the bearing(s) out of the housing. B ear i n g Rep l ac em en t Pr o c ed u r e

10. Using a two-arm puller and the two tapped puller holes (5/8") in the bearing housing, remove housing, bearing(s) and bronze seal, if present, as a unit. NOTE: No shaft support is needed; the shaft will be supported by the labyrinth seals.

2. Heat the bearing. Normally a bearing temperature of 80 to 90C (144 to 162F) above that of the shaft is sufficient for mounting. C A U TI O N: Ne v e r h e at a b e ar i n g t o a t em p er at u r e g r eat er t h an 125C (257F), n ev er h eat a b ear i n g u s i n g an o p en f l am e. 3. Press the bearing onto the shaft until seated against the shoulder. Pusher kits are available from Spencer. 4. Lubricate according to instructions on page 7. NOTE: Oil slinger dimples should face the bearing.

CA UTION: Mai n t ai n ex t r em e c l ean l i n es s t o av o i d b ear i n g c o n t am i n at i o n an d d am ag e. Us e n ew g as k et s . 1. Install components in the reverse order of disassembly.

B ear i n g Rem o v al Pr o c ed u r e 1. Remove coupling guard.

Ser i es 7000, 8000

3. Lubricate according to instructions on page 9.

2. Press the bearing(s) onto the shaft until seated against the shoulder. Pusher kits are available from Spencer. NOTE: Double bearings must be installed back-to-back.

NOTE: If the assembly is equipped with a bronze rotation shaft seal, start the seal on the shaft, but do not seat.

3. Unbolt and move motor.

4. Use puller to remove blower coupling half. Apply heat if necessary. 6. Remove bearing cap.

2. Split the coupling halves, recording the relative position of the motor and blower shafts (not the coupling shells).

NOTE: Labyrinth seals are non-contacting and do not wear, but if a seal is damaged during bearing replacement, leakage will increase and the seal should be replaced. 1. Remove the bearing housing, following the appropriate bearing removal instructions in this manual. 2. Remove the heat fan if present. Disk-type heat fans are secured by two setscrews; bladed heat fans are clamped to the shaft. 3. Support the shaft and slide the seal clear. Gently lower the shaft. L ab y r i n t h Seal 4. Slide the new seal onto the shaft, raise and recenter the shaft, then seat the seal and fasten securely.

L ab y r i n t h Seal Rem o v al an d Rep l ac em en t

5. Drain all oil by removing drain plug from the bottom of the bearing sump.

12

CA U TI ON: Us e c ar e; t h e s ea l m a t er i a l i s s o f t an d eas i l y d am ag ed . 5. Disk-type heat fan: Use a feeler gage to position the fan .050" from the seal face and tighten. Bladed heat fan: Center the fan between the seal face and the bearing journal and tighten. 6. Replace bearing(s) following the appropriate bearing replacement instructions in this manual.

When ordering parts provide full information about your Spencer equipment, including the serial number and model number. Field-replaceable parts are restricted to the following: Drive end motor bearing Opposite drive end motor bearing Inlet bearings Discharge bearing Labyrinth seal or carbon ring Bearing cap gaskets

Fi el d -Rep l ac eab l e Par t s

(RSO) issued by the Spencer Service Department after we receive your Purchase Order. Service costs will be quoted after inspection and the work will be performed upon written acceptance of the quotation. Spencer is committed to ensuring the safety of its employees. If Spencer equipment has been exposed to potentially hazardous contaminants or if Spencer service personnel could be exposed to a potentially hazardous field environment, a Material Safety Data Sheet (MSDS) is required (a) prior to dispatching Spencer service personnel or (b) before receipt of any equipment for factory service. If special precautions are necessary to work on the equipment, contact the Spencer Service Manager. Emergency service calls after normal working hours can be routed through our voice mail system at 1-800-232-4321 and a Spencer service representative will return your call promptly. Spencer Representatives are always available to help customers achieve maximum equipment performance and reliability. Likewise, Spencer service personnel will provide on-site instruction during field service calls in the proper procedures to avoid a recurrence of the problem encountered.

Mat er i al Saf et y Dat a Sh eet s

Spencer provides prompt, courteous factory and field service for all Power Mizer machines. To determine the nature of the disorder and the best way to correct it, service personnel will be dispatched to your location. We typically request a Purchase Order prior to sending service personnel; however we will proceed on verbal orders in an emergency. Once a full evaluation of the equipment has been performed by our service personnel, you will be advised if the service work is covered by the Spencer warranty. For out-of-warranty services, please note that we accept Visa and MasterCard charges as well as other forms of payment. NOTE: Spencer products returned to the factory must be sent freight prepaid and accompanied by a Return Service Order

Eq u i p m en t Ser v i c e

Em er g en c y Ser v i c e

Ser v i c e an d Op er at i n g A s s i s t an c e

PROB L EM

IX. Tr o u b l es h o o t i n g Gu i d ePo s s i b l e Cau s e Incorrect rotation. Air or gas lines too small, causing excessive friction loss. Inlet, discharge or piping system partially blocked.

INSUFFICIENT A IR OR GA S THROUGH SYSTEM

In d i c at i o n : l o w p r es s u r e/v ac u u m o r v o l u m e as d et er m i n ed b y g ag e m eas u r em en t o r p r o c es sIncrease line sizes or install machine with higher output pressure. Open valves or inspect check valve. Remove obstructions, clean filter. Position inlet in a cooler area. Change motor leads to correct rotation.

Co r r ec t i v e A c t i o n

Valves in line not fully open or check valve improperly installed.

High inlet temperature. Low inlet pressure.

Machine not running at design speed. Machine air passages clogged. Low gas density or specific gravity.

Check inlet for obstructions or install machine with higher discharge pressure. Refer to motor manufacturers instructions; check motor speed; check voltage connections. Consult Spencer Service Department. Consult Spencer Service Department. Check gas analysis and increase density or install machine designed for prevailing conditions. Calibrate gage; always use a U tube manometer for checking pressure and/or vacuum.

Pressure or vacuum gage inaccurate. System requirements incorrectly calculated by customer.

Impellers damaged by explosion, abrasion or vibration.

In d i c at i o n : m ac h i n e d es i g n c ap ac i t y t o o s m al l f o r t h e s y s t em

System leaks or too many openings. Flowmeters calibrated incorrectly.

Install larger volume or lower pressure machine to handle system requirements. Locate and repair leaks, reduce number of openings.

In d i c at i o n : m eas u r i n g g as o r ai r f l o w i n c o r r ec t l y

No means of measurement available.

Calibrate flowmeters; use proper orifice for meter (check with flowmeter manufacturer). Obtain and install flowmeter.

13

PROB L EM MA CHINE NOISY

IX. Tr o u b l es h o o t i n g Gu i d e (cont.)Po s s i b l e Cau s e Bearing hot. Bearing failure.

In d i c at i o n : m ac h i n e m al f u n c t i o n b ear i n g w h i n i n g o r g r o w l i n gReplace bearing(s). Replace bearing(s).

Co r r ec t i v e A c t i o n

Check lubricant, add or drain as necessary. Be sure oiler is functioning properly and screw cap is tightened properly. Tighten nut, check for damage. Replace housing and bearing. Follow installation directions carefully, check bearing, shaft and housing dimensions. Correct abrasive conditions if present; consult Spencer Service Department regarding impeller replacement.

Bearing replaced incorrectly (e.g., angled, cramped or reversed).

Bearing turning in housing, housing worn.

Bearing turning on shaft, retaining nut loose.

Bearing retainers worn.

Impellers worn due to age or abrasion from dirty air or gas. Machine in surge (see page 8). Coupling misaligned and/or out of grease. Foreign matter in machine. Impellers or shaft sleeve hitting.

In d i c at i o n : m ac h i n e m al f u n c t i o n i n t er n al n o i s e

Machine running rough, out of balance.

Increase airflow.

Consult Spencer Service Department.

Check alignment, realign if necessary; check coupling for wear, replace if worn; relubricate as instructed. Consult Spencer Service Department regarding machine cleaning; install inlet filter to prevent clogging. Consult Spencer Service Department.

Abnormal hum or whine.

In d i c at i o n : m o t o r m al f u n c t i o n

Bearing noise (see previous instructions for blower bearings). Loose part in motor. Low frequency.

High voltage (causes noise and burnout).

Low voltage, motor not up to speed.

Check motor manufacturers instructions; check voltage supply and connections. Correct improper voltage. Correct improper voltage.

Tighten, repair or replace (check with motor manufacturer). Correct improper frequency.

MOTOR HOT

Incorrect cycle.

Ambient temperature too high for insulation class. Incorrect voltage.

(Ch ec k w i t h s u r f ac e t h er m o m et er ; c o n s u l t Sp en c er Ser v i c e Dep ar t m en t f o r as s i s t an c e)Change to correct voltage. Change to correct cycle. Repair or replace motor.

Cool motor or replace with motor having proper insulation.

Motor overloaded, too much air passing through blower.

Electrical short-circuit insulation failure.

Check for system leaks, throttle back butterfly valve, install larger motor.

14

VIB RATING MA CHINE

PROB L EM

IX. Tr o u b l es h o o t i n g Gu i d e (cont.) Material buildup on impellers. Shaft bent. Bearing failure.

In d i c at i o n : m ec h an i c al f au l t

Po s s i b l e Cau s e

Co r r ec t i v e A c t i o nConsult Spencer Service Department for cleaning instructions, install inlet filter to prevent further buildup. Consult Spencer Service Department. Replace bearing(s). Balance motor. Align coupling. Consult Spencer Service Department. Consult Spencer Service Department. Install flexible connectors at inlet and discharge. Remove bolts, use dowel pins or set in guide channels. Check bearings, shaft and housing, correct bearing fit. Anchor piping properly beyond flexible connector. Check voltage and wiring connections, correct voltage. Consult Spencer Service Department regarding machine cleaning, install inlet filter to prevent further contamination. Follow alignment procedure on page 6. Increase airflow. Reinforce foundation. Change engine speed to remove pulsation.

Unbalanced replacement motor installed. Internal parts hitting. Impeller failure. Coupling misaligned.

Inlet and/or discharge piping connected to machine without flexible connector, causing torque or stress on casing. Bearing(s) cramped due to improper fit. Piping not adequately supported. Incorrect motor voltage, causing assembly to operate at improper speed. Machine bolted down, causing misalignment.

Soft foot on motor or blower.

Solids passing through machine.

Machine in surge (see page 8).

OIL L EA K S

Machine not mounted on solid foundation. System component tilted.

Harmonic pulsation from gasoline engine driver.

In d i c at i o n : Oi l l eak i n g f r o m b ear i n g h o u s i n g

High oil level causing air bubbles in oil and high oil temperatures. Air leak in oiler reservoir.

Make sure blower, oil sump and oiler are level. Decrease oil level in reservoir. Reset oil heightsee page 9.

Adjustable oiler at improper height setting (Series 3000, 4000, 5000, 6000 blowers).

Loose fittings.

Loose or overtightened oiler cap.

Oiler cap removed and replaced too slowly or too often, allowing nuisance feeding.

Vent line missing or disconnected.

Tighten fittings.

Hand-tighten cap, make sure O-ring is clean and in good condition.

Screw cap on and off quickly; refill only when oil level is down to 1/4 full.

Install or reconnect vent line.

Check O-rings and gaskets, remove dirt and contamination. See Bench Testing Oilers, page 9.

15

Multistage centrifugal blowers Regenerative blowers

In d u s t r i al l y r at ed p r o d u c t s o f f er i n g ef f ec t i v e s o l u t i o n s f o r ai r an d g as m o v i n g p r o b l em s :

P r o d u c t s & S er v i c es Dissolved oxygen control systems Valves, gauges, couplings, shrink sleeves, vibration isolators and other system components

Single stage centrifugal blowers

Comprehensive selection of tubing, fittings, vacuum hose, valves and tools

Gas boosters & hermetic gas boosters

Modular central vacuum systems Separators and dust collectors

Mobile or stationary integrated vacuum systems Custom-engineered products with special materials for extreme temperatures and pressures

Worldwide parts and service organization Application research and testing facility

The industrys largest complement of technical specialists in air and gas moving technology

Co m p r eh en s i v e en g i n eer i n g an d o t h er c u s t o m er s u p p o r t s er v i c es :

Co m p l em en t ar y ac c es s o r i es w i t h s i n g l e s o u r c e c o n v en i en c e an d c o m p at i b i l i t y :

Standard and custom electrical control panels UL, CUL Listed and C.E. Compliant available

Product selection, installation and operation assistance Comprehensive system design services Follow-up services and troubleshooting

Wo r l d w i d e o r g an i zat i o n o f s al es r ep r es en t at i v es an d d i s t r i b u t o r s o f f er i n g :

Fo r t h e n am e an d t el ep h o n e n u m ber o f y o u r l o c al Sp en c er Rep r es ent at i v e, c al l 1-800-232-4321 o r em ai l m ar k et i n g @s p en c er -ai r.c o m

Th e

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