MAC TOOLS JSA300AJ User manual

JSA300AJ 01/13/14
Maximum Capacity ............................................................3 TONS
Minimum Height ...................................................................3.75"
Maximum Height.................................................................19.29"
Overall Length.....................................................................29.13"
Overall Width ......................................................................13.39"
Handle Length.....................................................................47.83"
Saddle Diameter ...................................................................4.57"
Shipping Weight............................................................55.12 Lbs.
SPECIFICATIONS
OWNER'S MANUAL
JSA300AJ
3 TON
CAPACITY ALUMINUM
FLOOR JACK
Copyright © Professional Tool Products, 2014
All rights reserved

JSA300AJ 2 01/13/14
WARNINg INFORMATION
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
IMPORTANT: READ THESE INSTRUCTIONS BEFORE OPERATING
BEFORE USING THIS DEVICE, READ THIS MANUAL COMPLETELY AND THOROUGHLY, UNDERSTAND ITS OPERATING PROCEDURES, SAFETY WARNINGS
AND MAINTENANCE REQUIREMENTS.
It is the responsibility of the owner to make sure all personnel read this manual prior to using the device. It is also the responsibility of the device owner to
keep this manual intact and in a convenient location for all to see and read. If the manual or product labels are lost or not legible, contact Mac Tools for
replacements. If the operator is not fluent in English, the product and safety instructions shall be read to and discussed with the operator in the operator's
native language by the purchaser/owner or his designee, making sure that the operator comprehends its contents.
THE NATURE OF HAZARDOUS SITUATIONS
The use of portable automotive lifting devices are subject to certain hazards that cannot be prevented by mechanical means, but only by the exercise of
intelligence, care, and common sense. It is therefore essential to have owners and personnel involved in the use and operation of the equipment who are
careful, competent, trained, and qualified in the safe operation of the equipment and its proper use. Examples of hazards are dropping, tipping or slipping
of loads caused primarily by improperly securing loads, overloading, off-centered loads, use on other than hard level surfaces, and using equipment for a
purpose for which it was not designed.
METHODS TO AVOID HAZARDOUS SITUATIONS
•Read,study,understandandfollowallinstructionsbeforeoperatingthisdevice.
•Inspectthejackbeforeeachuse.Donotusejackifdamaged,altered,modied,inpoorcondition,leakinghydraulicuid,orunstableduetolooseor
missing components. Make corrections before using.
•Liftonlyonareasofthevehicleasspeciedbythevehiclemanufacturer.
•WeareyeprotectionthatmeetsANSIZ87.1andOSHAstandards(usersandbystanders).
•Donotusejackbeyonditsratedcapacity.
•This is a lifting device only. Immediately after lifting, support the vehicle with jack stands capable of sustaining the load before working on the vehicle.
•Useonlyonahardlevelsurfacefreefromobstructionssothejackisfreetorepositionitselfduringliftingandloweringoperations.
•Centerloadonsaddle.Besuresetupisstablebeforeworkingonvehicle.
•Donotmoveordollythevehiclewhileonthejack.
•Donotusesaddleadaptersorsaddleextendersbetweenthestockliftingsaddleandtheload.
•Alwayslowerthejackslowlyandcarefully.
•ThisproductmaycontainoneormorechemicalsknowntotheStateofCaliforniatocausecancerandbirthdefectsorotherreproductiveharm.
Wash hands thoroughly after handling.
•Failuretoheedthesewarningsmayresultinseriousorfatalpersonalinjuryand/orpropertydamage.
CONSEQUENCES OF NOT AVOIDING HAZARDOUS SITUATIONS
Failuretoreadthismanualcompletelyandthoroughly,failuretounderstanditsOPERATINGINSTRUCTIONS,SAFETYWARNINGS,MAINTENANCEINSTRUCTIONS
andcomplywiththem,andfailuretocomplywiththeMETHODSTOAVOIDHAZARDOUSSITUATIONScouldcauseaccidentsresultinginseriousorfatalpersonal
injury and/or property damage.
WARNING:Indicatesahazardoussituation
which, if not avoided, could result in death
or serious injury.
WARNING
WARNING
WARNING
WARNING

JSA300AJ 3 01/13/14
INSPECTION
JSA300AJ
3 TON
CAPACITY ALUMINUM
FLOOR JACK
Visual inspection should be made before each use of the jack, checking for leaking hydraulic fluid and damaged, loose or missing parts. Any jack which
appearstobedamagedinanyway,isfoundtobebadlyworn,oroperatesabnormallyMUSTBEREMOVEDFROMSERVICEuntilnecessaryrepairsaremade.
Handle
Handle Socket
Bolt
Handle
Socket
Upper
Handle
Lock
Lower
Handle
Pad
Lower Handle
Saddle
Handle
Pad
Handle
Socket
Handle
Rear
Casters
Chassis
Front
Wheels
Lift Arm
Side
Handle
Pad

JSA300AJ 4 01/13/14
  ThisisthesafetyalertsymbolusedfortheOPERATINGINSTRUCTIONSsectionofthismanualtoalertyoutopotentialpersonalinjuryhazards.
  Obeyallinstructionstoavoidpossibleinjuryordeath.IMPORTANT:Beforeattemptingtoraiseanyvehicle,checkvehicleservicemanualfor
recommended lifting surfaces.
OPERATION
1. Putvehicletransmissioninparkoringearandthenapplytheemergencybrake.
To raise load:Turnthehandleinaclockwisedirectionuntiltight.Positionthejackundertheload.Proceedtopumpthehandleinordertoraisethelift
arm to the load. As the saddle at the end of the lift arm gets closer to the load, reposition the jack so the saddle will contact the load firmly and the load is
 centeredonthesaddle.Makesurethesaddleiscorrectlypositioned.Raisetheloadtothedesiredworkheight.Placejackstandsofappropriatecapacity
at the vehicle manufacturers's recommended support areas that provide stable support for the raised vehicle. DO NOT CRAWL UNDER VEHICLE WHILE
LIFTING VEHICLE OR PLACING OR REMOVING THE JACK STANDS!Oncejackstandsarepositioned,turnthejackhandleVERYSLOWLYinacounterclockwise
direction to lower the load to rest on the jack stands. Inspect the relationship between the jack stands and load to make sure the setup is stable and safe.
If the setup is not stable or safe, follow the preceding steps until corrected.
2. To lower load:Followtheproceduresmentionedin"Toraiseload"sectionoftheOPERATINGINSTRUCTIONSinordertoraisetheloadoffthejackstands.
Once the load has cleared the jack stands, remove the jack stands from under the load and away from the work area. DO NOT CRAWL UNDER VEHICLE
WHILE LIFTING VEHICLE OR PLACING OR REMOVING THE JACK STANDS! Turn handle very slowly in a counter clockwise direction until the load is completely
lowered to the ground. Once the jack's lifting saddle has cleared the load, remove the jack from under the load. CAUTION: Keep hands and feet away from
the hinge mechanism of the jack.
SET UP
OPERATINg INSTRUCTIONS
JSA300AJ
3 TON
CAPACITY ALUMINUM
FLOOR JACK
1. Depress the upper handle lock in the upper handle while simultaneously inserting the end of the upper handle in the lower handle. Rotate the upper handle
back and forth until the handle lock seats in the lower handle lock hole.
2. Unscrew the handle socket bolt so that it will not interfere with the insertion of the handle in the handle socket. Insert the handle in the handle socket and
rotate the handle assembly back and forth until the release valve (see page 7) fits in the receiver in the bottom of the handle. Secure the handle in the
handle socket by tightening the handle bolt.
3. Sometimes air gets trapped in the hydraulic system during shipping and handling. If the pump feels spongy, or there is not a full incremental pump stroke,
or the jack will not raise to maximum height, follow these instructions in order to purge air from the system:
a. With the lift arm in its completely retracted position and the pump handle rotated all the way in a clockwise direction until it stops,
rotate the pump handle in a counterclockwise direction two full revolutions.
b. Proceed to pump the jack 15 full incremental pump strokes.
c. Rotate the pump handle clockwise until it stops and proceed to pump the handle until the lift arm reaches maximum height.
d. Repeat steps "A" through "C" until all air is purged from the system.
IMPORTANT: Before attempting to raise any vehicle, check vehicle service manual for recommended lifting surfaces.
   ThisisthesafetyalertsymbolusedforthePREVENTATIVEMAINTENANCEsectionofthismanualtoalertyoutopotentialpersonalinjuryhazards.
Obey all instructions to avoid possible injury or death.
PREVENTIVE MAINTENANCE
1. Always store the jack in a well protected area where it will not be exposed to inclement weather, corrosive vapors, abrasive dust, or any other harmful
elements. The jack must be cleaned of water, snow, sand, grit, oil, grease or other foreign matter before using.
2. The jack must be lubricated periodically in order to prevent premature wearing of parts. A general purpose grease must be applied to caster wheels,
front axle, elevator arm, handle base pivot bolts, release mechanism and all other bearing surfaces. Worn parts resulting from inadequate or no
 lubricationarenoteligibleforwarrantyconsideration.IMPORTANT:Inordertopreventsealdamageandjackfailure,neverusealcohol,hydraulicbrake
 uid,ortransmissionoilinthejack.Usehydraulicjackoil,alightturbineoil,ChevronAWISO32orUnocalUnaxAW150.
3. Everyjackownerisresponsibleforkeepingthejacklabelscleanandreadable.Useamildsoapsolutiontowashexternalsurfacesofthejackbutnotany
moving hydraulic components. Contact Mac Tools for replacement label if your jack label is not readable.
4. Inspect the jack before each use. Do not use the jack if any component is cracked, broken, bent, shows sign of damage or leaks hydraulic fluid. Do not use
the jack if it has loose or missing hardware or components, or is modified in any way. Take corrective action before using the jack again.

JSA300AJ 5 01/13/14
#3 #1
#2
#4
#3
#4
#2
IMPORTANT: Service jacks are designed for lifting purposes only; always support raised load with jack stands.
MONTHLY or as necessary (depending on usage)
#1 Usingagreasegun,addgreasetogreasettingintheliftarmpivotshaft.
 (Useamulti-purposeNLGItypegreaseonly.)
#2 Lubricate all linkages and pivot points.
 (Usewhitelithiumspraygreaseonly.)
#3 Removehandle;lubricatehandlereceptacleandhandleend.
 (Usewhitelithiumspraygreaseonly.)
#4 Lubricate both rear casters bearings and both front wheels.
 (Usewhitelithiumspraygreaseonly.)
Tighten all accessible hardware.
JSA300AJ
3 TON
CAPACITY ALUMINUM
FLOOR JACK
HYDRAULIC MAINTENANCE gUIDE
REgULAR MAINTENANCE

JSA300AJ 6 01/13/14
JSA300AJ
3 TON
CAPACITY ALUMINUM
FLOOR JACK
It is recommended that the jack be stored in a dry location with all wheels touching the ground on a relatively level surface.
Important:Servicejacksareself-containeddevicesusedforlifting,butnotsustaining,apartialvehicularload.InaccordancewithASME-PALDLoad
SustainingTest:“Aloadnotlessthantheratedcapacity…shallnotlowermorethan1/8"(3.18mm)intherstminute,noratotalof.1875"(4.76mm)
in 10 minutes.” Lowering within this range is considered normal operation and is NOT a warrantable defect.
PROBLEM ACTION
1.Unitwillnotliftratedload. PurgeairfromhydraulicsystembyfollowingprocedureunderSETUP.
2.Unitwillnotsustainratedloadorfeels“spongy”underrated
load.
Purgeairfromhydraulicsystemasabove.
3.Unitwillnotlifttofullheight. Purgeairfromhydraulicsystemasabove.
4.Unitwillnotlowercompletely. Check oil level. Make sure hydraulic system is not overfilled.
5. Handle tends to raise up while the unit is under rated load. Pumpthehandlerapidlyseveraltimestopushoilpastballvalvesinpowerunit.
6.Unitstilldoesnotoperate. Contact customer service.
MAC TOOLS WARRANTS TO ITS CUSTOMERS THAT THE COMPANY’S MAC TOOLS BRANDED PRODUCTS ARE FREE FROM DEFECTS IN WORKMANSHIP
AND MATERIALS.
Mac Tools will repair or replace its Mac Tools branded products which fail to give satisfactory service due to defective workmanship or materials, based upon
thetermsandconditionsofthefollowingdescribedwarrantyplansattributedtothatspecicproduct.ThisproductcarriesaONE-YEARwarranty.Duringthis
warranty period, Mac Tools will repair or replace at our option any part or unit which proves to be defective in material or workmanship.
Other important warranty information:
This warranty does not cover damage to equipment or tools arising from alteration, abuse, misuse, damage and does not cover any repairs or replacement
made by anyone other than Mac Tools. The foregoing obligation is Mac Tools sole liability under this or any implied warranty and under no circumstances shall
we be liable for any incidental or consequential damages.
Note: Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
If you have any questions about warranty service, please contact Mac Tools. This warranty gives you specific legal rights and you may also have other rights
which vary from state to state.
PROPER STORAgE
TROUBLESHOOTINg
LIMITED WARRANTY

JSA300AJ 7 01/13/14
Item No. Part No. Description Qty.
 1 RSALJ3T38 RubberSaddlePad 1
 2 RSALJ3T37 SaddleBolt 1
3 RSALJ3T36 Saddle 1
 4  SaddleBracket 1
5 Lift Arm 1
 6  LongRod 2
 7 RSALJ3T17BK FrontWheel 2
 8 RSALJ3T15 SideHandle 2
9 Chassis 2
 10 RSALJ3T01 RearCasterAssembly 2
 11 RS660203 LockNut(M12) 4 
 12 RSALJ3T55BK HandleSocket 1
13 RSALJ3T13 HandleSocketBolt 1 
Item No. Part No. Description Qty.
 14 RSALJ3T62BK UpperHandle 1 
 15 RSALJ3T60BK LowerHandle 1 
 16 RS300AJHB HandleBumper 1 
 17  ConnectingRod 1 
 18 RS300AJ18 PumpUnit 1
19 Spring 2
 20  ConnectingRod 1
 21 RS300AJ21 HandleSpringLock 1 
 22 RS300AJ22 SideHandlePad 2 
 23  FrontWheelShaft 1 
 24  LimitRod 1
 25  ReleaseValve 1
NotShown:RepairKitpartnumberRS300AJ18SKandProductLabelKitpartnumberRSJSA300AJLK
NOTE: Only items identified by part number are available for purchase.
PARTS LIST AND DIAgRAM JSA300AJ
3 TON
CAPACITY ALUMINUM
FLOOR JACK
25