Jet JSJ-2-1/4C User manual

OWNER'S MANUAL
JSJ-2-1/4C Service Jack
JET EQUIPMENT & TOOLS, INC. P.O. BOX 1349 253-351-6000
A WMH Company Auburn, WA 98071-1349 Fax [phone]
www.jettools.com e-mail [e-mail] M-414558 12/96

Important Information
1 YEAR JET offers a one year limited
LIMITED WARRANTY warranty on this product
REPLACEMENT PARTS
Replacement parts for this tool are available directly form JET Equipment & Tools.
To place an order, call 1-800-274-6848. Please have the following information ready:
1. Visa, MasterCard, or Discover Card number
2. Expiration date
3. Part number listed within this manual
4. Shipping address other than a Post Office box.
REPLACEMENT PART WARRANTY
JET Equipment & Tools makes every effort to assure that parts meet high quality and durability
standards and warrants to the original retail consumer/purchaser of our parts that each such
part(s) to be free from defects in materials and workmanship for a period of thirty (30) days from
the date of purchase.
PROOF OF PURCHASE
Please retain your dated sales receipt as proof of purchase to validate the warranty period.
LIMITED TOOL AND EQUIPMENT WARRANTY
JET makes every effort to assure that its products meet high quality and durability standards and warrants to
the original retail consumer/purchaser of our products that each product be free from defects in materials
and workmanship as follows: 1 YEAR LIMITED WARRANTY ON THIS JET PRODUCT. Warranty does not
apply to defects due directly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations
outside our facilities or to a lack of maintenance. JET LIMITS ALL IMPLIED WARRANTIES TO THE
PERIOD SPECIFIED ABOVE FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL.
EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OR MECHANTABILITY AND FITNESS ARE
EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED
WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. JET SHALL IN NO
EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERY OR FOR INCIDENTAL,
CONTINGENT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR
PRODUCTS. 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. To take advantage of this warranty, the product or part must be returned for examination, postage
prepaid, to an authorized service station designated by our Auburn office. Proof of purchase date and an
explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, JET will
either repair or replace the product or refund the purchase price, if we cannot readily and quickly provide a
repair or replacement, if you are willing to accept such refund. JET will return repaired product or
replacement at JET’s expense, but if it is determined there is no defect, or that the defect resulted from
causes not within the scope of JET’s warranty, then the user must bear the cost of storing and returning the
product. This warranty gives you specific legal rights, and you have other rights which vary from state to
state.
JET Equipment & Tools •P.O. Box 1349, Auburn, WA 98071-1349 •[phone]

WARNING
1. This is a lifting device only. Do not move or dolly the vehicle while on the jack. The load
shall be supported immediately by other appropriate means.
2. Do not overload. Overloading can cause damage to or failure of the jack.
3. Lift only on areas of the vehicle specified by the vehicle manufacturer.
4. This jack is designed for use on hard, level surfaces capable of sustaining the load. Use on
other than hard, level surfaces can result in jack instability and possible loss of load.
5. Do not get under vehicle while jack is being used as the only support.
6. If jack needs service, contact your local JET distributor for the location of the closest JET
Service Station.
7. Use only factory replacement parts when replacement of parts is necessary.
8. Failure to comply with all of these warnings may result in loss of load, damage to jack, and/or
failure resulting in personal injury or property damage.
Specifications: JSJ-2-1/4C
Stock Number.........................................................................................................................454228
Rated Capacity ......................................................................................................................4400 lb.
Minimum Height........................................................................................................................ 5-1/8”
Maximum Height........................................................................................................................... 20”
Saddle....................................................................................................................................... 5-3/4”
Overall Length .............................................................................................................................. 26”
Overall Width .......................................................................................................................... 14-1/8”
Handle Length .............................................................................................................................. 41”
Net Weight (approx.) ...........................................................................................................84-1/2 lb.
Shipping Weight (approx.) .........................................................................................................88 lb.

Assembly
Note: For parts identification, refer to parts list.
1. Insert upper handle (36) into lower handle (35) and fasten with hex cap bolt (37).
2. Remove handle bolt (33) and spacer (34).
3. Insert handle assembly into handle socket (38). Make sure handle assembly engages gear
shaft (27) by turning handle back and forth and observing movement of handle socket gear
(30).
4. Install handle bolt (33) and spacer (34) to secure handle assembly.
Lubrication
Note: Before initial operation, lubricate the jack as indicated in Fig. 1.
1. Handle - use 30W oil on release valve gears below handle and lightly grease handle at point
where it fits into socket with #2 tube grease.
2. Wheels - use 30W oil on axles and caster bearings.
3. Lifting Arm - inject #2 tube grease into tube fitting.
4. Saddle and Linkage - use 30W oil on all moving and pivoting parts.
5. Handle Socket Pivot Bolts - lubricate with 30W oil.
6. Plunger and Plunger Pin - Use #2 tube grease to lubricate connection between pump plunger
and pin in handle socket.
Lubrication Points

Operating Instructions
Important: Sometimes during shipment and handling, air gets into the hydraulic system, causing
poor lifting performance. Before initial operation, purge any air from the system by fully opening
release (turn handle counter-clockwise). Then, while holding the saddle down, pump handle
rapidly several times.
Raising the Jack
1. Turn handle clockwise until resistance is felt to close release valve. Do not over tighten.
2. Place jack directly under object to be lifted. Make sure saddle takes up weight firmly and
centrally. Check positioning under slight load to confirm jack or load will not slip.
3. Raise jack by pumping handle until desired height is reached. After lifting, secure load by
appropriate means. Do not use jack as the only means of support.
Lowering the Jack
1. Slowly turn handle counter-clockwise. Speed of descent is controlled by amount release
valve is turned.
Always store jack in the fully lowered position.
Troubleshooting
If jack fails to raise to its height limit, fill with just enough good quality hydraulic jack fluid so that
jack raises to its height limit.

Main Body Assembly

Main Body Assembly
Index Part
No. No. Description Qty.
1.......... 00400.................................Side Plate.................................................................................2
2.......... 00500.................................Caster Assembly * ...................................................................2
3.......... 00816.................................Lock Nut ...................................................................................2
4.......... 00012.................................Wheel * ....................................................................................2
5.......... 00801.................................Washer .....................................................................................2
6.......... 00802.................................Retaining Ring * ......................................................................2
7.......... 00300.................................Power Unit Assembly...............................................................1
8.......... 00803.................................Screw .......................................................................................2
9.......... 00804.................................Lock Washer ............................................................................2
10........ 00803.................................Linkage Assembly....................................................................1
11........ 00007.................................Shaft Arm .................................................................................1
12........ 00013.................................Saddle * ...................................................................................1
13........ 00805.................................Grease Fitting...........................................................................1
14........ 00008.................................Bolt Link ...................................................................................2
15........ 00806.................................Retaining Ring..........................................................................1
16........ 00600.................................Ram..........................................................................................1
17........ 00807.................................Pin ............................................................................................1
18........ 00005.................................Return Spring * ........................................................................1
19........ 00808.................................Retaining Ring..........................................................................2
20........ 00809.................................Lock Washer ............................................................................2
21........ 00810.................................Hex Nut ....................................................................................2
22........ 00811.................................Lock Washer ............................................................................2
23........ 00006.................................Bolt ...........................................................................................2
24........ 00004.................................Torsion Spring * ......................................................................1
25........ 000812...............................Release Valve Assembly .........................................................1
26........ 00002.................................Plunger Pin...............................................................................1
27........ 00208.................................Gear Shaft................................................................................1
28........ 00813.................................Pin ............................................................................................1
29........ 00700.................................Lifting Arm Assembly ...............................................................1
30........ 00209.................................Release Valve Gear * ............................................................1
31........ 00814.................................Lock Washer ............................................................................1
32........ 00815.................................Hex Nut ....................................................................................1
33........ 00204.................................Handle Bolt...............................................................................1
34........ 00205.................................Spacer......................................................................................1
35........ 00100.................................Handle (lower) * ......................................................................1
36........ 00001.................................Handle (upper) * ......................................................................1
37........ 00817.................................Screw * ....................................................................................1
38........ 00200.................................Handle Socket..........................................................................1
* indicates normal stocked part. Other parts may be purchased on a special order basis only.
Contact JET Equipment & Tools (1-800-274-6848) for details.

Power Unit Assembly

Power Unit Assembly
Index Part
No. No. Description Qty.
1A ....... 000301A-1 .........................Ram Rod ..................................................................................1
1B ....... 000301A-2 .........................Ram Head ................................................................................1
1C ....... 000301A-3 .........................Ram Head Pin..........................................................................1
2.......... 000308...............................O-Ring......................................................................................1
3.......... 000302...............................Tank Nut...................................................................................1
4.......... 000303...............................O-Ring......................................................................................2
5.......... 000304...............................Cylinder ....................................................................................1
6.......... 000305...............................Reservoir..................................................................................1
7.......... 000306...............................Oil Fill Plug ...............................................................................1
8.......... 000307...............................O-Ring Retainer .......................................................................1
9.......... 000314...............................O-Ring......................................................................................1
10........ 000324...............................O-Ring......................................................................................1
11........ 000309...............................Gear Retaining Nut ..................................................................1
12........ 000321...............................O-Ring......................................................................................1
13........ 000310...............................Release Valve Assembly * ......................................................1
14........ 000311...............................Actuator....................................................................................1
15........ 000312...............................Guide Plate ..............................................................................1
16........ 000322...............................Ball ...........................................................................................1
17........ 000323...............................Seal Washer.............................................................................1
18........ 000313...............................Plug Screw ...............................................................................1
19........ 000319...............................Overload Valve Screw .............................................................1
20........ 000325...............................Washer.....................................................................................1
21........ 000326...............................Wiper........................................................................................1
22........ 000327...............................Back-Up Ring ...........................................................................1
23........ 000328...............................O-Ring......................................................................................1
24........ 000320...............................Valve Block ..............................................................................1
25........ 000315...............................Plunger.....................................................................................1
26........ 000329...............................Ball ...........................................................................................1
27........ 000330...............................Ball ...........................................................................................1
28........ 000316...............................Plug Screw ...............................................................................1
29........ 000331...............................Ball ...........................................................................................1
30........ 000317...............................Plunger.....................................................................................1
31........ 000318...............................Spring.......................................................................................1
............ JSJ214C-RK......................Repair Kit (not shown) * ..........................................................1
* indicates normal stocked part. Other parts may be purchased on a special order basis only.
Contact JET Equipment & Tools (1-800-274-6848) for details.