Shafer Hand Pump Owner's manual

Brand: Shafer

Model: Hand Pump

Type: Owner's manual

Shafer Hand Pump is a versatile and reliable tool designed to provide efficient and precise fluid transfer and pressure generation. Its compact design and manual operation make it ideal for various applications, including hydraulic systems, fluid transfer, and pressure testing. With its ability to withstand high pressures and handle a wide range of fluids, the Shafer Hand Pump excels in demanding industrial and automotive settings.

MANUAL HAND PUMP

MAINTENANCE AND SERVICE MANUAL

GAS-HYDRAULIC

HAND PUMP

BILL OF MATERIAL

 1 1 PumpBody

 2 1 PumpHead

 3 1 PackingGland

 4 1 Clevis

 5 1 PivotBar

 6 1 PumpPiston

 7 1 TopRam

 8 1 BottomRam

 9 1 RamProtectiveCover

10 1 PumpSuctionSeat

11 1 ValveBody

12 1 LeftValveSleeve

13 1 RightValveSleeve

14 6 RingSeal

15 4 RingSealCap

16 2 ValveCap

17 2 Stem

18 2 StemCap

19 2 SuctionCap

20 1 PilotPiston

21 1 ReliefStem

22 1 ReliefSeat

23 1 ReliefCap

24 2 ClevisPinS.S.

25 4 AcetalBearing

26 1 PumpHeadO-RingComp.479-70 70Duro

27 1 RamO-RingComp.479-70 70Duro

28 2 RamWiper 90Duro

29 4 HeadBoltHexHeadCapScrewS.S.

30 1 PistonO-RingComp.479-70 70Duro

31 2 PistonGuideRing

32 1 TopRamSpringPin

33 1 BottomRamSpringPin

34 6 O-RingComp.479-70 70Duro

35 6 RingSealSpring

36 6 RingSealCapComp.479-70 70Duro

37 2 O-RingComp.479-70 70Duro

38 2 StemSpringPin

39 2 StemBoot

40 2 StemKnob

41 1 PilotPistonO-RingComp.479-70 70Duro

42 1 PilotPistonGuideRing

43 2 StemCapO-RingComp.479-70 70Duro

44 1 ReliefCapO-RingComp.479-70 70Duro

45 1 ReliefStemO-RingComp.479-70 70Duro

46 2 ReliefStemSpring

47 1 ReliefBallNylon

48 1 ReliefSpring

49 1 ReliefBoot

50 1 ReliefKnob

51 1 O-RingComp.479-70 70Duro

52 4 NylonBall

53 3 Suction&DischargeSpring

54 4 ValveBoltsHexHeadCapScrewS.S.

55 2 FlushPlug(STL)7/8Taper

56 9 FlushPlug(STL)7/8Taper

57 6 "X"Washer

58 2 AcetalBearing

59 1 FlushPlug7/8TaperSteel

60 2 PilotPistonBack-UpRing

61 1 InstructionPlate

62 4 InstructionPlateScrews#4Type"U"

63 1 ClevisPinS.S.

64 2 O-RingComp.479-70 70Duro

65 1 O-RingComp.479-70 70Duro

66 1 O-RingComp.479-70 70Duro

67 1 O-RingComp.479-70 70Duro

68 1 O-RingComp.479-70 70Duro

69 1 O-RingComp.479-70 70Duro

72 1 FlushPlug7/8TaperSteel

74 1 LockingPin

75 1 UpperRamSealParkerPolyPak

   RodSeal Molythane

This exploded view corresponds with the above assembly view.

Note:Items70,71&73pertaintothe12cu.in.HandPump

CENTRAL HYDRAULIC

HAND PUMP

BILL OF MATERIAL

 1 1 PumpBody

 2 1 PumpHead

 3 1 PackingGland

 4 1 Clevis

 5 1 PivotBar

 6 1 PumpPiston

 7 1 TopRam

 8 1 BottomRam

 9 1 RamProtectiveCover

10 1 PumpSuctionSeat

11 1 ValveBody

12 1 ValveSleeve

14 6 RingSeal

15 4 RingSealCap

16 1 PumpPiston

17 2 Stem

18 2 StemCap

20 2 PilotPiston

21 1 ReliefStem

22 1 ReliefSeat

23 1 ReliefCap

24 2 ClevisPinS.S.

25 4 AcetalBearing

26 1 PumpHeadO-RingComp.479-70 70Duro

27 1 RamO-RingComp.479-70 70Duro

28 2 RamWiper 90Duro

29 4 HeadBoltHexHeadCapScrew316S.S.

30 1 PistonO-RingComp.479-70 70Duro

31 2 PistonGuideRing

32 1 TopRamSpringPin

33 1 BottomRamSpringPin

34 7 O-RingComp.479-70 70Duro

35 7 RingSealSpring

36 6 RingSealCapComp.479-70 70Duro

37 4 O-RingComp.479-70 70Duro

39 2 StemBoot

40 2 StemKnobMPR-6

41 2 PilotPistonO-RingComp.470-70 70Duro

43 2 StemCapO-RingComp.479-70 70Duro

44 1 ReliefCapO-RingComp.479-70 70Duro

45 1 ReliefStemO-RingComp.479-70 70Duro

46 2 ReliefStemSpring

47 1 ReliefBallNylon

48 1 ReliefSpring

49 1 ReliefBoot

50 1 ReliefKnobDK-49

52 2 NylonBall

53 2 Suction&DischargeSpring

54 4 ValveBoltsHexHeadCapScrewS.S.

55 8 FlushPlug

57 6 "X"Washer

58 2 AcetalBearing

59 1 FlushPlug

61 2 InstructionPlate

62 2 InstructionPlateScrews#4Type"U"

63 1 ClevisPinS.S.

65 2 O-RingComp.479-70 70Duro

66 1 O-RingComp.479-70 70Duro

67 1 O-RingComp.479-70 70Duro

68 1 O-RingComp.479-70 70Duro

69 1 O-RingComp.479-70 70Duro

70 1 FlushPlug

73 1 FlushPlug

76 1 KepnerShuttleValve

77 1 ShortPipeNippleS.S.

78 1 LockingPin

79 2 SS-400-1-2M.C.1/8Pipe1.4Tube Swagelok

80 2 SS-400-2-2M.C.1/8Pipe1.4Tube Swagelok

81  1/4O.D.StainlessSteelTubing

86 1 UpperRamSealParkerPolyPak

  RodSeal Molythane

This exploded view corresponds with the above assembly view.

Note:Items70,71&73pertaintothe12cu.in.HandPump

BASIC

CHECK-OUT PROCEDURES

ThefollowingthreetestsillustratetheproperworkingfunctionsoftheShaferhandpump.Failureof

anyoftheseproceduresmayresultinoperatingproblemsforthevalveactuator.

TEST 1

Withbothpalmbuttonsout(automat-

icposition)andwiththeraminthe

"UP"positionanduidinthepump

cylinder,strokethehandpump.-If

theringseals,valvesleevesand

themanualdischargecheckball

aresealingproperly,itshouldbe

impossibletopullthepumpram

down.Theramcanbeloweredor

pulleddownbyholdinginthemanual

dischargereliefandpullingtheram

downatthesametime.

TEST 2

Withonepalmbuttonpushedin

(selectedforopenorclosedposi-

tion)handpumptheactuator.If

thepumpisspongyorwillonly

drawapartialramofoilwhile

pumpingtheactuator,checkthe

gas/hydraulictankforcorrect

oillevels.Ifthecontrolcircuitis

poweredbyacentralhydraulicunit,

checkthepumpreservoirtankfor

correctoillevelandinsurethatthe

handvalve(ifpresent)betweenthe

pumpandreservoirisopen.

Ifthepumpstillwillnotdrawoildur-

ingthesuctioncycle,reconditioning

willberequired.

TEST 3

Thenaltestisaccomplishedby

pushinginthepalmbuttontowhat-

everpositionthevalveisin,"open"

or"closed".Raisethepumphandle

todrawuidintothecylinderand

thenforcetheramdownward.The

ramwilldischargeslowlyonrotary

vaneactuators.Workingproperly,

theramshouldnotmovedownward

inaneasymanner,whenpump-

ingagainstafullystroked(openor

closed)actuator.Thesameproce-

durecanbeappliedtolinear"gate

type"actuators.Downwardmotion

undergreatforcemayoccurifrelief

settingsareexceeded.

DISASSEMBLY OF PUMP

AND VALVE COMPONENTS

Failureoftheramto"lock-up"asshowninTest#1isageneral

indicationofringsealfailure,suctioncheckvalvefailureor

manualreliefcheckvalvefailure.Problemareasareusually

duetoadefectivesuctionball,dischargereliefball,ringseal

orforeignmatterimbeddedinoneorallthreeoftheabove

mentionedcomponents.AcutO-ringaroundtheringsea,

suctioncheckseatordischargereliefseatwillproducethe

samemalfunction.

NOTE:DuringanycomponentdisassemblyallO-rings,wear

rings,wipersandnylonballsshouldbereplaced.

TO REMOVE THE MANUAL

DISCHARGE RELIEF ASSEMBLY

1) Pushthereliefknob(50)intoneutralizeanytrapped

gasoroilpressureinthesystem.

2) Pullbothpalmbuttons(40)outintoautomaticposition.

3) Removethedischargereliefknob(50),boot(49)and

hexheadcap(23),stem(21)andspring(46).

4) Placeonehandoverthedischargereliefcavityand

jerkthepumpram(7)downto"pop"thereliefseat

(22)upforremoval.

5) InspecttheO-ringonthedischargereliefseat(22),

thechamferedseatandthenyloncheckball(47)for

scoringordeepscratches.

TO REMOVE VALVE SLEEVE ASSEMBLY

1) Pushmanualreliefvalve(50)downtoneutralizeany

trappedgasoroilpressureinthesystem.(Neglect

thisifthereliefassemblyisalreadyremoved.)

2) Removethepalmvalveknob(40),boot(39)andhex

headcap(18).

3) Carefullypullthestem(17)andvalvesleeveassem-

bly(12)outofthevalvebody(11).

4) Inspecttheatsurfacesonthevalvesleeve(12)and

theO-rings(37)onthestem(17).

 NOTE:Thegashydraulicpumpshavetwovalve

sleeves,items(12)and(13).Thecentralhydraulic

pumpshaveonlyonevalvesleeve,item(12).

5) Toremovethepilotpistons(20)insidethevalvebody

(11)rstremovethepalmvalvesleeveassembly(12).

Caremustbetakennottoscratchorscoretheinside

boreofthevalvebody.Replacementofthepilotpis-

tonO-rings(41)shouldbemadeatthistime.

TO REMOVE THE RING SEAL ASSEMBLY

NOTE:Thevalvesleeveassemblies,left(12)andright

(13)applytothegashydraulicpumps.Onevalve

sleeveassembly(12)appliestocentralsystem

pumps.

 Thevalvesleeveassembliesforallpumpsmustbe

removedbeforeremovingtheringsealassemblies

(14).

1) Disconnectthehydraulictubingandttingswhichcon-

nectthecentralportstothecontrolandthedischarge

portstotheactuator.Thehexheadcapretainerson

thefrontfaceofthevalve(11)alsocontainringseal

assemblies(14).

2) Removehexheadcapretainers(15)and(16)and

springs(35).

3) Reachinsidethevalvebody(11)throughthevalve

sleeveholeandpushtheringseals(14)out.

4) Inspecttheatfacesoftheringseals(14)forwear

andtheO-rings(34)forcuts.Replacementofthering

seals(14)andO-rings(34)shouldbedoneatthis

time.

DISASSEMBLY OF PUMP AND VALVE COMBINATION

1) Removethefourassemblybolts(54)locatedonthe

backofthepumpbody(1).

2) Carefullypullthevalvebody(11)andpumpbody(1)

aparttopreventlossofthemountingO-ringsbetween

thetwoblocks.

3) Toremovethepumpsuctionseat(10)insertedinthe

pumpbody(1)placeonehandovertheseatcartridge

(10)andonengertoholdthenylondischargeballon

itsseatandjerkthepumpram(7)downwardtocreate

pressureto"pop"thecartridge(10)outintoyourhand.

4) InspecttheseatO-rings(66)and(67),checktheball

(51)andchamferedseatforscratchesandforeign

matter.

5) NOTE:Thispertainstothe12cu.in.pumpsonly.

Removethedischargecheckseat(70)andinspect

O-rings(71)andchamferedseatforscratchesand

foreignmatter.

DISASSEMBLY OF PUMP RAM AND PISTON

1) Removethesnapring(X-washers)(57)locatedout-

sideeachpin(24,63),intheclevispivotarmassembly

(4)and(5).

2) Removethepins63&24),clevis(4)andpivotbar(5).

3) Removethefourpumpheadbolts(29)locatedatthe

topofthepumpcylinder(1).

4) Carefullypulltheram(7),andpistonassembly(6)out

ofthepumpcylinder(1).

5) Inspecttheram(7),pumpcylinderbore(1),piston

O-rings(30)andpistonwearrings(31)forscoringand

excessivewear.TheO-ring(27)andPolyPaklipseal

(86)andwiperrings(28)aroundeachpumpram(7

&8)shouldbereplacedatthistime.OnesetO-ring

(27),PolyPaklipseal(86)andwiperring(28)can

befoundinthepumphead(2).Theothersetcanbe

reachedbyunscrewingthehexshapedramcover(9)

atthebottomofthepumpbody(1).

RECONDITIONING

AND ASSEMBLY

RELAPPING THE VALVE SLEEVE

Thevalvesleeves(12)and(13)canbeeasilyrelappedto

assurepropersealingsurfaces;assumingthescratchesin

themarenottoodeep.Noteeachvalvesleevehasfour

atsides.Onlythethreewithholesonthemneedtobe

relapped.Useacircularmotionwithalappingcompound

onaatsurfacetoremovelightscratches.

NOTE: Thecentralsystempumpshaveonlyonevalve

sleeve(12)tolap.

REASSEMBLY - GAS HYDRAULIC PUMP

Afterrelappingthevalvesleeves(12)and(13)andre-

placementoftheringseals(14),withallsixofthehex

headcapretainers(15)and(16)removed,inserttheleft

valvesleeve(12)(indicatedleftbytheletter"L"stamped

onthefrontfaceofthesleeve)intothevalvebody(11).

Thevalvesleeve(12)hasfourportholesdrilledthrough

theatsurfaces.Onesetofholesarelocated90°



apart

fromtheother.Theothersetisadrilledthroughhole.

Wheninsertingtheleftvalvesleeve(12),thetwo90°holes

shouldlineupwiththetopport(15)ofthebody(11)and

thefrontport(16)ofthevalvebody(1).Thefrontbeing

thefacewiththedirectionplate(61).Afterinsertingthe

sleeve(12)asfarasitwillgo,the90°holesshouldbe

linedupwiththeabovementionedports.

Afteroneofthevalvesleeves(12)isreassembled,insert

thepilotpiston(20)intotheoppositesleevehole.(The

pilotpiston(20)canbeinsertedineitherdirection.)The

pilotpiston(20)shouldbepushedinwithascrewdriver

orsimilarnarrowtoolonceit'sstartedintoitscavity.This

shouldbe donecarefully toprevent cuttingthe O-ring

(41)orscratchingtheinsideofthevalvebody.

Thereassemblyoftherightvalvesleeve(13)shouldfol-

lowthesameinstructionsastheleftvalvesleeve(12).

Afterinsertingbothvalvesleeves(12)and(13)andtheir

respectivecaps(18),insertthesixringseals(14)through

theportswiththelappedsurfacesoftheringseals(14)

making contactwiththeatsidesofthevalvesleeve

(12)and(13).Insertthesprings(35)andretaininghex

headcaps(15)and(16)andpulleachvalvesleeve(12)

and(13)inandoutseveraltimessothesleeves(12)and

(13)centerthemselvesagainsteachringseal(14).To

insurecorrectassemblyofthesleeve(12)and(13)and

ringseal(14)assemblies,pushonesleeveatatimein

asfarasitwillgoandchecktoseeifthe90°



portholes

inthesleevelineupwiththetop(actuatorport)(15)and

thefrontport(16).Ifthisalignmentiscorrect,followthe

sameinstructionsfortheoppositesleeve.

REASSEMBLY

CENTRAL HYDRAULIC SYSTEM PUMP

Afterrelappingthevalvesleeve(12)andreplacement

oftheringseals(14),withallsixofthehexheadcap

retainers(15)and(16)removed,insertthevalvesleeve

(12)intothevalvebody(11).Thevalvesleevehasve

portholesperend.

NOTE: Thesleeveismarked"L"forleftand"R"for

right.Theveportholesaredrilledthroughthe

fourlappedatsurfacesofthevalvesleeve.

Thegure(below,left)indicateshowtoreinstall

thevalvesleeve(12)intothevalvebodyinthe

correctposition.

NOTE: Thevalvesleevehasatotaloftwelveholes

drilledinfouratsurfaces.Thesurfacewith

sixholesistheTOP.Thesurfacewiththetwo

holesclosesttothetwoextremeends(leftand

right)istheFRONT.Thegureattheleftshows

thesleeveinthisposition.Thesleeveshould

beinsertedintothevalvebodyinthisposition

only.Thefrontofthevalvebodyisthesurface

withtheinstructionplate.Afterreinstallingthe

valvesleeve(12)intothevalvebody(11),insert

thepilotpistons(20)andstemcaps(18).Next

installthesixringseals(14)throughtheparts

untiltheymakecontactwiththelappedsurfaces

ofthevalvesleeve(12).Insertthesprings(35)

andtheretaininghexcaps(15)and(16)and

pushthevalvesleevepalmbuttonsbackand

forthseveraltimestoinsuretheringseals(14)

andseatthemselvesagainstthelappedfaces

ofthevalvesleeve(12).

GAS HYDRAULIC

SYSTEM CIRCUIT

MANUAL RELIEF VALVE

PALM

BUTTON

SHAFER ACTUATOR

SPEED

CONTROL

CENTRAL HYDRAULIC

SYSTEM CIRCUIT

OIL

RESERVOIR

MANUAL RELIEF VALVE

CONTROL

SPEED

CONTROLS

DOUBLE

HOLDING VALVE

CONTROL

SHAFER

LINEAR ACTUATOR

MHP-01102001

Emerson Process Management Valve Automation, Inc.

2500 Park Avenue West

Manseld, OH 44906

Phone (419) 529-4311

FAX (419) 529-3688

www.emersonprocess.com/shafer

Shafer Hand Pump Owner's manual

Shafer Hand Pump Owner's manual

Shafer Hand Pump Owner's manual

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