Craftsman 50234 User manual

Operator's Manual
Service Jack
Models 50234- 3 Ton Capacity
50238 - 2 1/2 Ton Capacity
• Safety
• Operation
• Maintenance
• Parts
(50234 shown)
CAUTION Before using this product, read
this manual and follow all its Safety Rules
and Operating Instructions.
ATENCION: Leer, comprender, y seguir las
instrucci6nes antes de utilizar el aparato. El
manual de instrucci6nes y la informaci6n de
seguridad deben estar comunicado en
lengua del operador antes del uso. No
seguir estas indicaci6nes puede causar
daSos personales o materiales.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
www. sea rs.co m/crafts man
Part No. 50234-38 Printed in China 01/02

CRAFTSMANServiceJacksaredesignedforlifting,
butnotsustaining,loadsrangingfrom21/2tons
through3tonsdependingontheratedcapacityof
thejack.Afterlifting,loadsmustbeimmediately
supportedbyappropriatemeanssuchasjack
stands.Servicejackswiththehydraulicliftspeedy
liftfeature(50238)provideonepumptoliftpoint
contact.ModelNo.50234featuresamechanical
speedyliftintheformofafootoperatedpump
handle.Eachisdesignedtobeusedinconjunction
withjackstands.Thesejacksareintendedtobe
usedtoliftoneaxleorcornerofavehicleforthe
purposeofserviceandrepair.Checkwithvehicle
manufacturer'smanualforproperliftpoints.These
jackscomplywithapplicableASME/ANSI
Standards.
• Save these instructions.
• For your safety and the safety of others around
you, read carefully before attempting to assemble,
service or use your jack.
•The owner and operator shall have an
understanding of this product and safe operating
procedures before attempting to use.
• Do not operate jack if you any doubt as to its safe
and proper use as outlined in this operator's
manual.
• Inspect before each use.
• It is the operator's responsibility to translate, or
have translated, instruction and safety information
to his/her native language.
• Do not use if leaking, broken, bent, cracked or
otherwise damaged parts are noted.
• If you know or suspect that the jack has been
subjected to a shock load (a load dropped
suddenly and violently onto it), immediately
discontinue use until jack has been checked by a
qualified service facility.
• Owners and operators of this equipment shall be
aware that the use and subsequent repair of this
equipment may require special training and
knowledge.
• Only replace any missing parts, labels, decals or
printed material with those available from Sears.
• Any jack that appears to be damaged in any way,
isworn or operates abnormally shall be removed
from service immediately.
• Always wear safety glasses when operating this
product.
• Do not use foot pedal to raise loaded lift arm.
• Do not dolly the load with jack.
• Failure to comply with the information contained
within could result in personal injury and/or property
damage.
• Leer, comprender, y seguir las instrucci6nes antes
de utilizar el aparato.
• El manual de instrucci6nes y la informaci6n de
seguridad deben estar comunicado en lengua del
operador antes del uso.
• No seguir estas indicaci6nes puede causar da_os
personales o materiales.
Model Capacity Base Size (L x W) Min. Height Max. Height
50238 2-1/2 Ton 29-3/4" X 13-1/4" X 6-1/4" 3-3/4" 20"
50234 3 Ton 25" X 13-3/8" X 6-5/8" 5-1/4" 19"
Sears, Roebuck and Co. 2

Toavoidpersonalinjuryand/orpropertydamage:
Study,understand,andfollowallinstructionsbefore
operatingthisdevice.Donotexceedratedcapacity.
Useonlyonhard,levelsurfaces.Thisisalifting
deviceonly.Immediatelyafterlifting,supportthe
vehiclewithappropriatemeanssuchasjackstands.
Donotmoveordollythevehiclewhileonthejack.
Besurealltoolsandpersonnelareclearbefore
loweringload.
1.Verifythattheproductandtheapplicationare
compatible.
2.Beforeusingthisproduct,readthisowners
manualcompletelyandfamiliarizeyourself
thoroughlywiththeproduct,itscomponentsand
recognizethehazardsassociatedwithitsuse.
3.Locateandopenthereleasevalve
(counterclockwisenomorethan2fullturns).
4.Withsaddlefullylowered,locateandremovethe
oilfillerplug.Insertthehandleintothehandle
sleeve,thenpump6to8fullstrokes.Thiswill
helpreleaseanypressurizedairwhichmaybe
trappedwithinthereservoir.Ensuretheoillevelis
justbelowtherimoftheoilfillerplughole.
Reinstalltheoilfillerplug.
5.Checktoensurethatjackrollsfreelyandthatthe
pumpoperatessmoothlybeforeputtinginto
service.Replacewornordamagedpartsand
assemblieswithSearsReplacementPartsonly
(SeeReplacementPartssectioninthismanual).
LubricateasinstructedinMaintenanceSection.
6.Inspectbeforeeachuse.Donotuseifbent,
brokenorcrackedcomponentsarenoted.
handle
handle fork
foot pedal
\
saddle
front wheel
oil filler plug
(on reservoir)
Little, if any assembly is required of these jacks.
Always secure the handle to the handle fork by
means of the M12 X 7.5 bolt and lock washer
provided. Tighten securely to prevent accidental
removal of handle while in use. Please familiarize
yourself with the illustrations in the owners manual.
Know your jack and how itoperates before
attempting to use.
lifting arm saddle
front wheel
handle fork
Figure 1- Model 50234 Nomenclature
caster parts tray
oil filler vent screw
(on reservoir)
Figure 2 - Model 50238 Nomenclature
3

Lifting
1.Placevehicleinpark,withemergencybrakeon
andwheelssecurelychockedtoprevent
accidentalvehiclemovement.
2.Locateandclosereleasevalvebyturninghandle
clockwise,firmly.Positionjacksaddleunderlift
point.
3.Verifyliftpoint,thenpumphandletocontactlift
point.Tolift,pumphandleuntilloadreaches
desiredheight.
Note:Model50238featuresa2speedhydraulic
systemthatallowstheliftarmtoberaisedtothelift
pointin1or2strokesofthehandle.Aftertheloadis
contacted,2or3additionalpumpsmayberequired
tofillthelowpressurecavityofthehydraulicsystem
andbeginthehighpressure,loadliftingprocessat
approximately.5"-.75"inchesperfullhandle
stroke.Model50234featuresafoot(orhand)
operatedpedalthatisintegraltothepumppiston
assembly.Thisallowstheusertoraisethejack
saddletocontacttheloadwithoutpumpingthrough
thefullarcoftheoperatinghandle.
4.Transfertheloadimmediatelytoappropriately
ratedjackstands.
CAUTION:Usethehandleprovidedwiththisproduct
oranauthorizedreplacementhandletoensure
properreleasevalveoperation.Whenusingtolift
vehicle,liftonlyonthemanufacturer's
recommendedliftpoints.Refertoyourvehicle
owner'smanual.
Lowering
1.Raiseloadhighenoughtoclearthejackstands,
thencarefullyremovethosejackstands(always
usedinpairs).
2.Slowlyturnthehandlecounterclockwise,butno
morethan1/2turn.Iftheloadfailstolower:
a.Useanotherjacktoraisethevehiclehigh
enoughtore-installjackstands.
b.Removetheaffectedjackandthenthestands.
c.Usingtheotherjack,lowertheloadbyturning
theoperatinghandlecounter-clockwise,butno
morethan1/2fullturn.
Important:Useonlyagoodgradehydraulicjackoil.
AvoidmixingdifferenttypesoffluidandNEVERuse
brakefluid,turbineoil,transmissionfluid,motoroilor
glycerin.Improperfluidcancausefailureofthejack
andthepotentialforsuddenandimmediatelossof
load.
Addingoil
1.Withsaddlefullyloweredandpumppistonfully
depressed,setjackinitsupright,levelposition.
Locateandremoveoilfillerplug/screw.
2.Fillwithoiluntiljustbelowtherimoftheoilfiller
plughole.Reinstalltheoilfillerplug/screw.
Changingoil
Forbestperformanceandlongestlife,replacethe
completefluidsupplyatleastonceperyear.
1.Withsaddlefullyloweredandpumppistonfully
depressed,removetheoilfillerplug/screw.
2.Laythejackonitssideanddrainthefluidintoa
suitablecontainer.
Note:Disposeofhydraulicfluidinaccordance
withlocalregulations.
3.Fillwithoiluntiljustbelowtherimoftheoilfiller
plughole.Reinstalltheoilfillerplug/screw.
Lubrication
1.Aperiodiccoatingoflightlubricatingoiltopivot
points,axlesandhingeswillhelptopreventrust
andassurethatwheels,castersandpump
assembliesmovefreely.
Cleaning
Periodicallycheckthepumppistonandramfor
signsofrustorcorrosion.Cleanasneededand
wipewithanoilycloth.
Note:Neverusesandpaperorabrasivematerialon
thesesurfaces!
Storage
Whennotinuse,storethejackwithpumppiston
andramfullyretracted.

Symptom
Jack will not lift load
Jack *bleeds off after lift
Jack will not lower after unloading
Poor lift performance
Possible Causes
1. Release valve not tightly closed
2. Overload condition 2.
1. Release valve not tightly closed 1.
2. Overload condition 2.
3. Power unit malfunction 3.
1. Reservoir overfilted
2. Linkages binding
1. Fluid level tow
2. Air trapped in system
Corrective Action
1. Ensure release valve tightly closed
Remedy overload condition
Ensure release valve tightly closed
Remedy overload condition
Replace power unit
1. Drain fluid to proper level
2. Clean and lubricate moving parts
1.
2. Ensure proper fluid level
With ram fully retracted, remove oil
filler plug/screw to let pressurized air
escape, then reinstall oil filler plug/
screw.
Will not lift to full extension 1. Fluid level low 1. Ensure proper fluid level
* "Bleeding off" means that jack begins to slowly lower rather than keep load at height.
FULL ONE YEAR WARRANTY
For one year from the date of purchase, ifthis product fails due to a defect in material or workmanship, Sears
will repair itfree of charge. Call 1-888-332-6419 for the location of the nearest authorized repair center.
This warranty applies only while this product is used in the United States. Warranty is void if product is
leased or rented.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to
state.
Sears Roebuck and Co., Dept. 817WA, Hoffman Estates, IL 60179

PARTS
When ordering replacement parts, please refer to the model number /serial number found on the product, then
give the part number and description. For example, to order an oil filler plug for a model 50234 simply order
Part No. 50234-05.
Model No. 50234
Fiqure No. Part No. Description Quantitv
1 50234-01 power unit (power unit) 1
2 50234-02 front wheel assembly 2
3 50234-03 rear caster assembly 2
4 50234-04 saddle 1
5 50234-05 oil filler plug 1
6 50234-06 handle assembly 1
7 50234-07 foot pedal 1
8 50234-08 handle gear assembly 1
9 50234-09 foot pedal return spring 1
10 50234-10 handle fork return spring 1
11 50234-11 lift arm return spring 1
-- 50234-38 operator's manual (not shown) 1
//J
11
8
10
2
Figure 3 - Replacement Parts Illustration for Model 50234
6

PARTS
Whenorderingreplacementparts,pleaserefertothemodelnumber/serial number found on the product, then
give the part number and description. For example, to order an oil filler screw for amodel 50238 simply order
Part No. 50238-05.
Model No. 50238
Fiqure No. Part No. Description Quantity
1 50238-01 power unit (hydraulic unit) 1
2 50238-02 front wheel assembly 2
3 50238-03 rear caster assembly 2
4 50238-04 saddle 1
5 50238-05 oil filler screw 1
6 50238-06 handle assembly 1
7 50238-07 handle grip 1
8 50238-08 bolt and washer 1
9 50238-09 handle fork return spring 2
10 50238-10 lift arm return spring 2
11 50238-11 u joint 1
12 50238-12 cover plate 1
-- 50234-38 operator's manual (not shown) 1
6
11 10
_J
l/
@
// 12
2
9
Figure 4 - Replacement Parts Illustration for Model 50238
7

For repair of major brand appliances in your own home
no matter who made it, no matter who sold it!
1-800-4-MY-HOM Efi Anytime, day or night
(1-800-469-4663) (U.S.A. and Canada)
www.sears.corn www.sears.ca
For repair of carry-in products like vacuums, lawn equipment,
and electronics, call for the location of your nearest
Sears Parts and Repair Center.
1-800-488-1222 Anytime, day or night (U.S.A. only)
www.sears.com
For the replacement parts, accessories and owner s manuals
that you need to do-it-yourself, call Sears PartsDirectSM!
1-800-366-PART 6a.m. 11 p.m. CST, 7 daysaweek
(1-800-366-7278) (U.S.A. only)
www.sears.com/partsdirect
To purchase or inquireabout a Sears Service Agreement
or Sears Maintenance Agreement:
1-800-827-6655 (U.S.A.) 1-800-361-6665 (Canada)
7 a.m. 5 p.m. CST, Mon. Sat. 9 a.m. 8 p.m. EST, M F, 4 p.m. Sat.
Para pedir servicio de reparaci n a
domidlio, y para ordenar piezas:
1-888-SU-HOGAR sM
(1-888-784-6427) SEARS
HomeCentraP
Au Canada pour service en fran ais:
1-800-LE-FOYER Mc
(1-800-533-6937)
www.sears.ca
fi Registered Trademark /TM Trademark /SMService Mark of Sears, Roebuck and Co.
SM
fi Marca Registrada /TM Marca de FASrica /Marca de Servicio de Sears, Roebuck and Co.
Mc Marque de commerce /MDMarque d_Zpos_Zede Sears, Roebuck and Co. ' Sears, Roebuck and Co.