Jet Tools Automobile Parts JSJ 10T User Manual

Operating Instructions and Parts Manual

Long Chassis Service Jacks

Models JSJ-3T/JSJ-5T/JSJ-10T

WMH TOOL GROUP

2420 Vantage Drive

Elgin, Illinois 60123

Ph.: 800-274-6848

Part No. M-454430

Revision A 8/05

www.wmhtoolgroup.com

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Table of Contents

Warranty and Service ..............................................................................................................................2

Table of Contents ....................................................................................................................................3

Warning...................................................................................................................................................3

Introduction..............................................................................................................................................4

Description ..............................................................................................................................................4

Specifications ..........................................................................................................................................4

Unpacking ...............................................................................................................................................5

Assembly.................................................................................................................................................5

Before Operation .....................................................................................................................................5

Operation.................................................................................................................................................5

Maintenance............................................................................................................................................5

Replacement Parts ..................................................................................................................................6

JSJ-3T, JSJ-5T, JSJ-10T Service Jacks...............................................................................................7

Parts List: JSJ-3T Service Jack ............................................................................................................8

Parts List: JSJ-5T Service Jack ..........................................................................................................10

Parts List: JSJ-10T Service Jack ........................................................................................................12

Warning

1. Read and understand the entire owner’s manual before attempting assembly or operation.

2. This jack is designed for lifting vehicles only.

3. The vehicle owner’s manual should be consulted prior to lifting the vehicle. Lift only on areas of the

vehicle specified by the vehicle manufacturer.

4. The jack must be on level and solid ground with wheels of vehicle facing straight ahead.

5. Do not overload the jack. Overloading can cause damage to or failure of the jack.

6. No one should remain in a vehicle that is being lifted.

7. When lifting the vehicle, be sure to place the axle on the center of the jack saddle.

8. After lifting the vehicle, place safety stands under the axles.

9. Never get under a vehicle that is supported only by a jack.

10. Never move the jack while is it supporting the vehicle.

11. When lowering the vehicle, make sure nobody is around or under the lifted vehicle. Lower slowly.

12. Safety valve is factory adjusted and no further adjustment is required.

13. While not in use, always keep the handle straight up and locked so that it won’t fall.

14. Read and understand the warnings posted on the jack and in this manual. Failure to comply with all of

these warnings may result in loss of load, damage to jack and/or personal injury or property damage.

15. Replace the warning labels if they become obscured or removed.

16. Use only factory replacement parts when part replacement is necessary.

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Introduction

This manual is provided by WMH Tool Group covering the safe operation and maintenance procedures

for a JET Model JSJ Service Jack. This manual contains instructions on assembly, safety precautions,

general operating procedures, maintenance instructions and parts breakdown. This jack has been

designed and constructed to provide years of trouble free operation if used in accordance with

instructions set forth in this manual. If there are any questions or comments, please contact either your

local supplier or WMH Tool Group. WMH Tool Group can also be reached at our web site:

www.wmhtoolgroup.com.

Description

The Model JSJ Service Jack is for heavy-duty automotive and truck repair and maintenance. It’s

equipped with strong steel side plates, an extra wide swivel saddle, foot pump and locking T-bar handle.

Hydraulic cylinder parts have been high-pressure tested at the factory, and parts at maximum stress

points have been heat-treated. Also features a safety overload bypass system.

Specifications

Model Number..................................... JSJ-3T................................JSJ-5T.................................JSJ-10T

Stock Number......................................454430............................... 454450 .................................. 454410

Capacity (ton) ............................................... 3.........................................5..........................................10

Minimum Height (in.).................................. 5.1.................................... 5.91.......................................6.30

Maximum Height (in.)..............................23.62.................................. 22.05..................................... 22.05

Overall Length (in.) .................................. 51.6................................. 55-1/2....................................60-7/8

Overall Width (in.).................................... 12.8............................... 14-5/16....................................19-1/2

Handle Length (in.) .................................45.28.................................. 45.28..................................... 45.28

Net Weight (lbs.)....................................... 155..................................... 210 ........................................320

The above specifications were current at the time this manual was published, but because of our policy of

continuous improvement, WMH Tool Group reserves the right to change specifications at any time and

without prior notice, without incurring obligations.

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2. Carefully position the jack under the vehicle

with the saddle under the point of contact.

Unpacking

3. Pull the lock lever (31) up and push it over to

the left until it slides into the upper slot.

Open shipping container and check for shipping

damage. Report any damage immediately to

your distributor and shipping agent. Do not

discard any shipping material until the Service

Jack is assembled and running properly.

4. Pump the handle (38), or use the foot pedal

(27) to raise the vehicle.

5. To lower the vehicle, slowly and carefully

rotate the release valve knob (39)

counterclockwise. Speed of descent is

controlled by how much the knob is rotated.

Assembly

The numbers in parentheses refer to the item

numbers on the parts breakdown, page 7.

Make sure all tools and

personnel are clear before lowering the load.

Lower slowly.

1. Insert the handle (38) as far as it will go into

the handle socket (26).

2. Tighten the hex cap screw (30) securely.

Maintenance

Lubricate the pin and other moving elements on

the Lifting Arm with #2 tube grease.

When transporting the jack, the handle can be

removed and carried separately.

Before Operation

Before operating the jack, any air in the

hydraulic system must be removed. Proceed as

follows:

Lubricate the pin and other moving parts of the

Handle Assembly. Tighten any loose screws.

Insert grease into the grease fitting on the Front

Wheels.

1. Open the release valve by turning the

release valve knob (39) counter-clockwise.

Pump the foot pedal (27) about six full

strokes to let the air out of the hydraulic

system.

With saddle completely lowered and handle in

its lowest position, remove oil plug and check oil

level. If low, fill with hydraulic jack oil until oil is

level with the inner cylinder as seen from the

opening of the filler hole.

2. Close the release valve by turning the

release valve knob (39) clockwise as far as

it will go.

NOTE: Completely drain and re-fill the oil tank at

least once a year. With saddle completely

lowered and handle in lowest position, remove

the oil plug. Lay the jack on its side and drain

fluid into an appropriate container. Re-fill with

good quality hydraulic jack oil and replace oil

plug. Never use brake fluid or any other highly

viscous or volatile oil.

3. Pump the foot pedal (27) to raise the jack as

far up as it will go. Lower the jack by

opening the release valve (39).

NOTE: If the jack does not immediately respond

to the pump action, repeat steps 1 through 3.

Always store jack in the fully lowered position

with handle upright.

Operation

Do not use a saddle extender

with this jack. Failure to comply may cause

damage to property and/or serious injury.

1. To raise the vehicle, make sure the release

valve knob (39) is closed – turn it clockwise

until resistance is felt; do not overtighten.

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Troubleshooting

Numbers in parentheses refer to the item numbers on the parts breakdown, page 7.

Trouble

Probable Cause

Remedy

Release valve not properly closed.

No oil in system.

Tighten release valve knob (39).

Fill to prescribed level.

Remedy overload condition. Use jack with

proper capacity for the load.

Jack is overloaded.

Jack will not lift.

Release Valve (52-54) or Safety Valve

(55-60) malfunctioning. Valve Ball not

properly seated.

Clean valves to remove dirt or foreign

matter and replace oil.

Seal/gasket worn out or defective.

Oil level low or too high.

Replace seal/gasket.

Jack will only lift part

way.

Fill to proper level, or remove excess oil.

Release Valve (52-54) or Safety Valve

(55-60) malfunctioning. Valve Ball not

properly seated.

Inspect valves; clean and adjust seat

surface.

Jack will lift load, but will

not hold.

Seal/gasket worn out or defective.

Release valve (52-54) not opening.

Reservoir is overfilled.

Replace seal/gasket.

Clean and adjust Release Valve.

Drain oil to proper level.

Jack will not lower after

unloading.

Linkages binding.

Clean and lubricate moving parts.

Pump gasket (50) defective or Valves

malfunctioning.

Replace gasket and/or clean valves.

Poor lift performance.

Oil level low, or dirty oil.

Air trapped in system.

Fill or replace oil.

Bleed air from system.

Replace pump plunger.

Replace spring.

Pump plunger (49) bent or marred.

Jack Spring damaged.

Jack will not lower

completely.

Link section warped or deformed due to

possible over-loading.

Replace warped parts.

Replacement Parts

Replacement parts are listed on the following pages. To order parts or reach our service department, call

1-800-274-6848 between 7:30 a.m. and 6:00 p.m. (CST), Monday through Friday. Having the Model

Number and Serial Number of your machine available when you call will allow us to serve you quickly and

accurately.

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JSJ-3T, JSJ-5T, JSJ-10T Service Jacks

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Parts List: JSJ-3T Service Jack

Index No. Part No.

Description

Size

Qty

1...............JSJ3M-18................ Frame and Lift Arm Assembly...................... .........................................1

2...............JSJ3T-2 .................. Front Wheel................................................. .........................................2

3...............JSJ3M-16................ Flat Washer.................................................Ø 22.5 x 2mm ...................2

4...............JSJ3M-15................ Snap Ring....................................................Ø 15mm............................2

5...............JSJ3T-5 .................. Grease Fitting.............................................. .........................................4

6...............JSJ3T-6 .................. Saddle......................................................... .........................................1

7...............JSJ3M-12................ Link Rod...................................................... .........................................2

8...............JSJ3M-11................ Link Rod Bolt............................................... .........................................2

9...............JSJ3M-8.................. Lock Washer................................................M16 ..................................2

10.............JSJ3M-9.................. Hex Nut .......................................................M16 ..................................2

11.............JSJ3M-21................ Spring.......................................................... .........................................1

12.............TS-2210161 ............ Hex Cap Screw............................................M10 x 16mm.....................1

13.............TS-1491031 ............ Hex Cap Screw............................................M10 x 25mm.....................2

14.............TS-2361101 ............ Lock Washer................................................M10 ..................................2

15.............JSJ3T-15 ................ Shaft............................................................ .........................................1

16.............JSJ3M-07................ Rear Wheel Assembly ................................. .........................................2

17.............JSJ3M-02................ Hex Nut .......................................................M12 x 1.25mm..................4

18.............JSJ3M-32................ Snap Ring....................................................Ø 18mm............................2

19.............JSJ3M-33................ Shaft............................................................ .........................................1

20.............TS-1550061 ............ Flat Washer.................................................M8 ....................................1

21.............JSJ3T-21 ................ Pin...............................................................Ø 3 x 18mm......................2

22.............JSJ3M-36................ Link ............................................................. .........................................2

23.............JSJ3T-23 ................ Snap Ring....................................................Ø 12mm............................2

24.............JSJ3T-24 ................ Pedal Pin..................................................... .........................................1

25.............JSJ3M-26................ Spring.......................................................... .........................................1

26.............JSJ3T-26 ................ Handle Socket ............................................. .........................................1

27.............JSJ3M-29................ Pedal........................................................... .........................................1

28.............JSJ3M-40................ Lock Nut......................................................M10 ..................................1

29.............JSJ3M-41................ Flat Washer.................................................M10 ..................................2

30.............JSJ3M-42................ Hex Bolt.......................................................M10 x 35mm.....................1

31.............JSJ3T-31 ................ Control Rod ................................................. .........................................1

32.............JSJ3T-32 ................ Handle Sleeve ............................................. .........................................2

33.............JSJ3T-33 ................ Fixing Ring .................................................. .........................................1

34.............JSJ3T-34 ................ Spring.......................................................... .........................................1

35.............JSJ3M-53................ Flat Washer.................................................Ø 10mm............................1

36.............JSJ3T-36 ................ Rod Joint..................................................... .........................................1

37.............JSJ3T-137............... Cotter Pin ....................................................Ø 4 x 20mm......................1

38.............JSJ3T-38 ................ Handle......................................................... .........................................1

39.............JSJ3T-39 ................ Knob............................................................ .........................................1

40.............JSJ3T-40 ................ Lock Pin ......................................................Ø 4 x 40mm......................1

41.............JSJ3M-28................ Universal Joint Assembly............................. .........................................1

42.............JSJ3T-42 ................ Pin...............................................................Ø 3 x 20mm......................1

43.............JSJ3M-43................ Spring.......................................................... .........................................1

44.............JSJ3T-44 ................ Lock Pin ......................................................Ø 3 x 18mm......................1

45.............JSJ3T-45 ................ Release Rod................................................ .........................................1

46.............JSJ3T-46 ................ Lock Pin ......................................................Ø 4 x 20mm......................2

47.............JSJ3T-47 ................ Cover........................................................... .........................................1

.................JSJ3T-200............... Hydraulic Cylinder Assembly (includes index # 48 thru 76)

48.............JSJ3T-48 ................ Pump Plunger Pin........................................ .........................................1

49.............JSJ3T-49 ................ Pump Plunger.............................................. .........................................1

50.............JSJ3T-50 ................ Nylon Gasket *.............................................Ø 14mm............................2

51.............JSJ3T-51 ................ O-Ring * ......................................................Ø 14 x 2.65mm .................2

52.............JSJ3T-52 ................ Release Pin................................................. .........................................1

53.............JSJ3T-53 ................ Seal *........................................................... .........................................1

54.............SB-6MM.................. Steel Ball.....................................................Ø 6mm..............................2

55.............SB-4MM.................. Steel Ball.....................................................Ø 4mm..............................1

56.............JSJ3T-56 ................ Safety Valve Ball Seat ................................. .........................................1

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57.............JSJ3T-57 ................ Safety Valve Spring ..................................... .........................................1

58.............JSJ3T-58 ................ Safety Valve Adjusting Screw ...................... .........................................1

59.............JSJ3T-59 ................ Seal *........................................................... .........................................1

60.............JSJ3T-60 ................ Safety Valve Screw...................................... .........................................1

61.............JSJ3T-61 ................ Spring.......................................................... .........................................1

62.............SB-9MM.................. Steel Ball.....................................................Ø 9mm..............................1

63.............JSJ3T-63 ................ Spring.......................................................... .........................................1

64.............JSJ3T-64 ................ Copper Washer ........................................... .........................................1

65.............TS-1506011 ............ Socket Head Cap Screw..............................M12 x 20mm.....................1

66.............JSJ3T-66 ................ Oil Filler Plug............................................... .........................................1

67.............JSJ3T-67 ................ Oil Tank Assembly....................................... .........................................1

68.............JSJ3T-68 ................ Snap Ring....................................................Ø 36mm............................1

69.............JSJ3T-69 ................ O-Ring Retainer........................................... .........................................1

70.............JSJ3T-70 ................ O-Ring * ......................................................Ø 36 x 4.6mm ...................1

71.............JSJ3T-71 ................ Seal Washer *.............................................. .........................................1

72.............JSJ3T-72 ................ Piston Ring.................................................. .........................................1

73.............JSJ3T-73 ................ Ram ............................................................ .........................................1

74.............JSJ3T-74 ................ Bushing ....................................................... .........................................2

75.............JSJ3T-75 ................ O-Ring * ......................................................Ø 43 x 3.55mm .................1

76.............JSJ3T-76 ................ Snap Ring.................................................... .........................................1

.................JSJ3T-RK ............... Repair Kit for JSJ-3T.................................... ...........................................

NOTE: Items marked with an asterisk (*) are included in the Repair Kit.

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Parts List: JSJ-5T Service Jack

Index No. Part No.

Description

Size

Qty

1...............JSJ5M-18................ Frame and Lift Arm Assembly...................... .........................................1

2...............JSJ5T-2 .................. Front Wheel................................................. .........................................2

3...............JSJ5M-16................ Flat Washer.................................................Ø 22.5 x 2mm ...................2

4...............JSJ5M-15................ Snap Ring....................................................Ø 19mm............................4

5...............JSJ3T-5 .................. Grease Fitting.............................................. .........................................3

6...............JSJ5T-6 .................. Saddle......................................................... .........................................1

7...............JSJ5M-12................ Link Rod...................................................... .........................................2

8...............JSJ5M-11................ Link Rod Bolt............................................... .........................................2

9...............JSJ5M-8.................. Lock Washer................................................M20 ..................................2

10.............JSJ5M-9.................. Hex Nut .......................................................M20 ..................................2

11.............JSJ5M-21................ Spring.......................................................... .........................................1

12.............TS-2210161 ............ Hex Cap Screw............................................M10 x 16mm.....................1

13.............TS-1491031 ............ Hex Cap Screw............................................M10 x 25mm.....................2

14.............TS-2361101 ............ Lock Washer................................................M10 ..................................2

15.............JSJ5T-15 ................ Shaft............................................................ .........................................1

16.............JSJ5T-16 ................ Rear Wheel Assembly ................................. .........................................2

17.............JSJ3M-02................ Hex Nut .......................................................M12 x 1.25mm..................4

18.............JSJ3M-32................ Snap Ring....................................................Ø 18mm............................2

19.............JSJ5M-33................ Shaft............................................................ .........................................1

20.............TS-1550061 ............ Flat Washer.................................................M8 ....................................1

21.............JSJ3T-21 ................ Pin...............................................................Ø 3 x 18mm......................2

22.............JSJ5M-36................ Link ............................................................. .........................................2

23.............JSJ3T-23 ................ Snap Ring....................................................Ø 12mm............................2

24.............JSJ3T-24 ................ Pedal Pin..................................................... .........................................1

25.............JSJ3M-26................ Spring.......................................................... .........................................1

26.............JSJ3T-26 ................ Handle Socket ............................................. .........................................1

27.............JSJ3M-29................ Pedal........................................................... .........................................1

28.............JSJ3M-40................ Lock Nut......................................................M10 ..................................1

29.............JSJ3M-41................ Flat Washer.................................................M10 ..................................2

30.............JSJ3M-42................ Hex Cap Screw............................................M10 x 35mm.....................1