Alemite 7531-4 Operating instructions

DESCRIPTION

UtilitypumpModels7531-4and7531-A4areofthe

hand-operated,lever-actiontype.

Model 7531-4 is designed to accommodate a 35 lb.

bucket.Model 7531-A4 operatesfrom a 20kg

container. See Figure 1.

Applicationof these units eliminateshand and paddle

fillingmethods,thuskeepinglubricantcleanandfree

ofanycontaminationwhenbeingapplied.

Thehigh-pressurepumpprovidesamplepressureto

lubricateclose-fittedbearings.Lubricantdeliveryisone

ounce(28.4 gms)perfivestrokes. Thedynamicprimer

aids priming in cold weather and enables the pump to

handleheaviergreasesmorereadily.Allpressuregun

lubricantscanbeused.Thefollowerplatepreventsany

channelingoflubricant.

Each unit is equipped with a cover, follower plate, six

foot(1.8m)lubricanthose,andhydrauliccoupler.The

couplerprovides a quick, leak-proofcontactwiththe

hydraulicfittingand allows awidesealing angle

connection.

SPECIFICATIONS

PumpDelivery .............. 1 oz. (28.4 gms) per 5 strokes

PressureDeveloped ................... 3500psi (241.4Bar)

Finish........................................Maroonbakedenamel

coverwithother parts bright zinc

ASSEMBLY

Toassembleeithermodelpump, proceedasfollows

using Figures 2, 3 and 4:

1.Placepump mechanism into cover 337729 and

secure with cap screws 77787 and hex nuts 77650.

2. Align link 328253-1 with holes in stud 338389 and

securewithpin339961-1andtworetainingrings

171606.

3.Align lever 314552 with pinhole in piston rod and

securewithnut77650,screw170699,and

lockwashers77002.

SERVICE INSTRUCTIONS

High Pressure Utility Pump 7531-4

7531-A4

4.Alignlink328253-1 and handle 318414withholein

lever314552andfastenwithpin339961-3andtwo

retainingrings171606.

INSTALLATION

To install pump, use Figures 2, 3, and 4 as reference

andproceedasfollows:

1.Placefollowerplate337665or328238-A4on

lubricantsurface in lubricant pail andpress down until

lubricantisforcedintocenteropeningoffollower.This

willremove any airpockets.

2.Insertpumptube through the centeropeningofthe

followerplate.SecurewithJ-bolts317102andwing

nuts170837intobracketsoncover337729whencover

is seated on pail.

3.Screw five-foot(1.5m)lubricanthose withhydraulic

couplerinto3/8"lubricant-outletcheckvalve317210.

▼

3/8" NPTF (f) Outlet

670723 7531-4(12-03)

ledoMpmuPreniatnoC htgneLebuT

sehcnImC

4-1357bl53"8/3-214.13

4A-1357gK02"61/31-512.04

Figure 1 Pump Models 7531-4 and 7531-A4

AlemiteCorporation

www.alemite.com

167RowelandDrive,JohnsonCity,Tennessee37601

SER 7531-4

page2 pagerevised12-03

OPERATION

Tooperate pump,proceed as follows using Figure 2:

1.Connecthydrauliccoupler308730-Awithlubricant

hoseassembly317853-5to fitting.

CAUTION:Donotpointdispensingdeviceatoneself

orany otherperson;accidentaldischargeof pressure

will result in serious injury.

2.Work lever 314552upand down untilfluid emits

fromhydrauliccouplerandlubricatesfitting.

MAINTENANCE

Dothefollowingperiodically:

1.Check for sufficientlubricant in container.

2. Inspect lubricant hose and coupler assembly.

3. Wipe hydraulic coupler clean of any lubricant after

everyuse.

4.Flushpumpcleanwithappropriatesolventto

dislodgeanyforeign material orexcesslubricant.

DISASSEMBLY

Ifpumpfailstodeliverlubricantorfunctionproperly

proceedin following sequence using Figures 2, 3 and

NOTE:Partnumbersinparenthesesdesignatemodel

7531-A4.

1.UnthreadthreeJ-bolts317102andwingnuts

170837fromcoverassembly337729.

2.Unthreadnut77650,screw170699,lockwashers

79272,andremovelever314552frompumpassembly.

3.Unthreadtubeassembly317206-5(317206-6)from

bodyassembly328233andremovegasket53776.

4.Unthreadnut45569andcup317201fromrod

317202.Unthreadrodfromplunger317204-5(317204-

6).

5.Removeplunger317204-5(317204-6)andstopbar

317205-5(317205-6).

6.Unthreadbushing328236frombodyassembly

328233andremoveback-upring171017-12,“O”ring

171000-12andgasket328237.

7.Cleanparts and inspect fordamageor wear.

8.Replaceanywornordamagedparts.

IMPORTANT:Damagedorwornpartsareapotential

dangertopersonandproperty.Donotreusedamaged

orwornparts.

REASSEMBLY

Observethefollowingnotes,thenreassembleunitby

reversingdisassemblysteps1through6.

NOTE: ApplyLoctite No.222 on mating threads

betweenrod317202andplunger317204-5

(317204-6).AllowLoctitetocure1-2hoursbefore

furtherhandlingassembly.

Using SAE No. 10 motor oil, lubricate “O” ring 171000-

12andvalve317203beforereassembly.

SER 7531-4

pagerevised12-03 page3

Figure 2 Components of Models 7531-4 and 7531-A4 H.P. Utility Pump

▼▼

▼

▼▼

▼

318414

328253-1

171606 (2)

339961-1

171606 (2)

339961-3

(3) 170837

(3) 317102

337729

High-Pressure

Pump Mechanism

(Figure 4)

77650

77787

3/8" NPTF

(Lubricant Outlet)

314552

332748 (early

models)

338334 (later

models)

79272 (2)

77650

170699

NOTE: All parts shipped loose except handle grip is on the lever.

Figure 3 Model 322434 Hose and Coupler Assembly

▼

308730-A

▼

317853-5

▼

3/8" NPTF

▼

337665 (later models)

328238-A4 (early models)

SER 7531-4

page4 pagerevised12-03

Figure 4: Components of High-Pressure Pump Assembly

▼

317210

▼

3/8" NPTF

328233

SIDE VIEW

▼▼

▼

▼▼▼

▼▼▼▼▼▼▼

▼

▼▼

●171017-12

●■171000-12

338389

●53776

317206-5 (Model 7531-4)

317206-6 (Model 7531-A4)

317209

●317202

●45569 317201 ●

317203 ●

Apply Loctite

No. 242

328236

328237 ●

328233

■Lubricate With SAE #10

Motor Oil Before Assembling

●Included in Major Repair Kit

394260

317205-5 (Model 7531-4)

317205-6 (Model 7531-A4)

317204-5 (Model 7531-4)

317204-6 (Model 7531-A4)

pagerevised12-03 page5

SER 7531-4

Major Repair Kit

394260 High-Pressure Pump Mechanism Kit for Models 7531-4 and 7531-A4 (Figure 4)

Part No. Description Qty.

45569 .............. Hex Nut, 10-32 ............................................................................................. 1

53776 .............. Aluminum Gasket, 49/64" I.D. x 15/16" O.D................................................. 1

171000-12 ....... “O” Ring, 5/8" I.D. x 13/16" O.D. .................................................................. 1

171017-12 ....... Back-up Ring, 13/16" O.D. ........................................................................... 1

317201 ............ Cup .............................................................................................................. 1

317202 ............ Rod .............................................................................................................. 1

317203 ............ Valve ............................................................................................................ 1

328237 ............ Aluminum Gasket, 1/2" I.D. x 15/16" O.D..................................................... 1

PARTS LIST - High-Pressure Utility Pump for Models 7531-4 and 7531-A4 (Figure 2)

Part No. Description Qty.

77650............... Hex Nut,1/4-20.............................................................................................. 4

77787............... Hex-HeadCapScrew,1/4-20x5/8"............................................................... 3

✚79272............... Lockwasher,External-Tooth,1/4" .................................................................. 2

✚170699............. Screw(Special),1/4-20UNC ......................................................................... 1

170837 ............. WingNut,1/4-20............................................................................................ 3

✚171606............. RetainingRing ............................................................................................... 4

✚314552............. Lever ..............................................................................................................1

317102 ............. “J”Bolt ...........................................................................................................3

318414 ............. Handle ........................................................................................................... 1

❋322434 ............. HoseandCouplerAssembly.......................................................................... 1

328238-A4 ....... Follower-PlateAssembly(earlymodels) ........................................................ 1

✚328253-1 .......... Link,4-1/8" long ............................................................................................. 1

332748 ............. HandleGrip(coppertone) ............................................................................... 1

✚337729 ............. Cover ............................................................................................................. 1

337665 ............. Follower-PlateAssembly(latermodels) ......................................................... 1

✚338334 ............. HandleGrip(maroon) ..................................................................................... 1

339961-1 ......... Pin ................................................................................................................. 1

339961-3 ......... Pin ................................................................................................................. 1

❋ ✚ ............ High-PressurePumpMechanism................................................................... 1

❋See separate parts list

✚Notavailableasaseparatepurchasedpart

page6 pagerevised12-03

SER 7531-4

PARTS LIST - Model 322434 Hose and Coupler Assembly for Models 7531-4 and 7531-A4 (Figure 3)

Part No. Description Qty.

317853-5 ......... Hose Assembly (5 feet long) .........................................................................1

308730-A......... Hydraulic Coupler..........................................................................................1

PARTS LIST - High-Pressure Pump Mechanism for Models 7531-4 and 7531-A4 (Figure 4)

Part No. Description Qty.

●45569 .............. Hex Nut, 10-32 ..............................................................................................1

●53776 .............. Aluminum Gasket, 49/64" I.D. x 15/16" O.D..................................................1

●171000-12 ....... “O” Ring, 5/8" I.D. x 13/16" O.D. ...................................................................1

●171017-12 ....... Back-up Ring, 13/16" O.D. ............................................................................1

●317201 ............ Cup ...............................................................................................................1

●317202 ............ Rod ...............................................................................................................1

●317203 ............ Valve .............................................................................................................1

317204-5 ......... Plunger, 11-9/16" long (7531-4) ...................................................................1

✚317204-6......... Plunger, 15" long (7531-A4).........................................................................1

317205-5 ......... Stop Bar, 10-5/16" long (7531-4) ..................................................................1

✚317205-6......... Stop Bar, 13-3/4" long (7531-A4) ..................................................................1

317206-5 ......... Tube Assembly, 12-3/8" long (7531-4)..........................................................1

✚317206-6......... Tube Assembly, 15-13/16" long (7531-A4) ...................................................1

317209 ............ Sleeve ...........................................................................................................1

317210 ............ Check-Valve Assembly .................................................................................1

✚328233............ High-Pressure Body Assembly .....................................................................1

✚328236............ Bushing .........................................................................................................1

●328237 ............ Aluminum Gasket, 1/2" I.D. x 15/16" O.D......................................................1

✚338389............ Stud, 1-3/8" long ...........................................................................................1

●Repair Kit Part

✚Not available as a separate purchased part

NOTE: The parts listed in this instruction sheet are for reference identification in the instructions and

illustrations. Some of them are not available as separate parts and these are noted in the parts list. Standard

items such as nuts, bolts, etc. should be purchased at a hardware store. Refer to the current parts price list and

bulletinsbeforeorderingparts,andalwaysgive thepartnumber,quantity,descriptionandmodelwhereused

whenordering parts.Parts availability and prices aresubject to change without notice.

PARTSCHANGESSINCELASTPRINTING

AddedPin339961-1and339961-3

AddedRetainingRing171606

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