Jet DSLT-770 User manual

OWNER'S MANUAL
DSLT-770 Double Scissor Lift Table
JET EQUIPMENT & TOOLS, INC. P.O. BOX 1349 Phone:[phone]
A WMH Company Auburn, WA 98071-1349 Fax: [phone]
www.jettools.com e-mail [e-mail] M-140778 5/01

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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]

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 WARNING
1. Read and understand the owner’s manual before assembly and operation.
2. Do not load scissor lift beyond its rated capacity.
3. Do not allow people to sit or ride on scissor lift.
4. Secure load before raising or moving scissor lift.
5. Do not transport loads in the raised position.
6. Use only on smooth finished floors.
7. Pull release lever slowly to allow load to descend in a controlled manner.
8. Keep hands and feet clear of table when lowering load.
9. Failure to comply with the above warnings may result in personal injury and/or property damage.
Specifications: DSLT-770
Stock Number.......................................................................................................................................140778
Capacity (lbs.) ........................................................................................................................................... 770
Table Size L x W (in.)...............................................................................................................35-5/8 x 20-1/8
Maximum Height (in.)............................................................................................................................51-1/8
Minimum Height (in.)........................................................................................................................... 13-9/16
Strokes to Reach Max. Height ...................................................................................................................~21
Overall Size L x W x H (in.)........................................................................................45-3/4 x 20-1/8 x 37-1/4
Net Weight (lbs.)........................................................................................................................................ 226
Shipping Weight (lbs.) ............................................................................................................................... 235
Assembly
1. Attach the handle (A, Fig. 1) to the frame
using two hex cap bolts, two lock washers,
two flat washers. Tighten with a 19mm
wrench.
Note: The two rear casters can be locked
so they do not rotate. Press foot lever (B,
Fig. 1).

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2. Attach foot lever (A, Fig. 2) to the lever
bracket (B, Fig. 2) with one hex cap bolt,
one flat washer, one lock washer (C, Fig. 2).
Tighten with a 14mm wrench.
 WARNING
Keep hands and feet clear of table and
scissor lift openings while lowering load.
Failure to comply may cause serious injury!
3. Pump the foot lever several cycles so that
the table is out of your way while attaching
the cable.
Note: Place a 2” x 4” board straight up and
down between the table and frame so that
the table can not come down on you while
attaching the cable.
4. Route the cable (A, Fig. 3) into the cable nut
(B, Fig. 3). Run the cable through the
lowering mechanism (C, Fig. 3) and pull the
cable tight. Tighten the hex nut (D, Fig. 3)
using a 14mm wrench.
Note: You may have to turn the hex socket
cap screw to line up the hole. This will allow
the cable to pass through freely.
Operation
1. The table can be raised by pumping the foot
lever.
2. To lower the table, slowly pull the release
lever.
3. Before loading, lock the caster brake.
Maintenance
1. Lubricate each friction point monthly with #2
tube grease.
2. Check the movement and wear of wheels.
3. Check for oil leakage from the hydraulic
cylinder.
4. Store with table in lowered position.

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Trouble Shooting
Trouble Cause Action
Table will not raise.
No oil in reservoir.
Lowering valve or steel ball is
not seating.
Steel ball is not seating.
Relief valve is not adjusted
properly
Replenish reservoir.
Clean lowering valve or steel
ball or replace.
Clean or replace steel ball.
Reload truck within load
capacity and adjust valve by
pressure relief adjusting screw
(#12a)
Table will not remain elevated.
Lowering valve or steel ball is
not seating.
Oil seal or U-packing is worn
out.
Clean or replace lowering valve
or steel ball.
Replace oil seal or U-packing.
Table will not lower.
U packing is worn out.
Lowering valve plug #16A is
clogged.
Replace U-packing.
Replace lowering valve plug.
Oil leaks from lowering valve. O-ring is worn out. Replace o-ring.
Oil leaks from pump cylinder. Oil seal or U-packing worn out. Replace oil seal or U-packing

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Parts Breakdown

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Parts List for the DSLT-770 Hydraulic Scissor Lift
Index Part
No. No. Description Size Qty.
1..........DSL770-1......................... Table............................................................. .................................1
2..........DSL770-2......................... Link Assembly............................................... .................................1
3..........DSL770-3......................... C-Ring........................................................... ∅16..........................2
4..........DSL770-4......................... Roller Guide.................................................. .................................4
5..........TS-2360141..................... Flat Washer................................................... M16..........................2
6..........DSL770-6......................... Shaft ............................................................. .................................2
7..........DSL770-7......................... C-Ring........................................................... ∅16..........................2
8..........DSL770-8......................... Link Shaft...................................................... .................................2
9..........DSL770-9......................... Cap Screw..................................................... M8x16......................4
10........DSL770-10....................... Bushing......................................................... .................................4
11........TS-2360241..................... Flat Washer................................................... M24..........................4
12........DSL770-12....................... Link Shaft...................................................... ∅ 20.........................2
13........DSL770-13....................... Handle........................................................... .................................1
14........DSL770-14....................... Washer.......................................................... ∅38x5 ......................2
15........TS-1492011..................... Cap Screw..................................................... M12x25 ....................2
16........DSL770-16....................... Release Lever............................................... .................................1
17........DSL770-17....................... Cable............................................................. .................................1
18........TS-1490031..................... Cap Screw..................................................... M8x20......................8
19........TS-1551051..................... Lock Washer................................................. M8............................8
20........DSL770-20....................... Wheel Caster Assembly (incls: 20, 23, 24, 28, 29)...........................2
21........TS-1540061..................... Hex Nut......................................................... M8............................8
22........TS-1541031..................... Nyloc Lock Nut..............................................M8............................2
23........DSL770-23....................... Wheel Assembly (incls: 23, 24, 28, 29).......... .................................4
24........DSL770-24....................... Dust Cover.................................................... .................................2
25........TS-1490151..................... Cap Screw..................................................... M8x80......................2
26........DSL770-26....................... Frame ........................................................... .................................1
27........TS-1540061..................... Hex Nut......................................................... M8............................2
28........DSL770-28....................... Bearing.......................................................... ∅19x∅ 12x36...........4
29........DSL770-29....................... Bushing......................................................... ∅12x∅8.5x42...........4
30........TS-1490111..................... Cap Screw..................................................... M8x60......................2
31........DSLT770-31..................... Cylinder Assembly......................................... .................................1
32........DSL770-32....................... Lock Pin........................................................ .................................1
33........DSL770-33....................... C-Ring........................................................... ∅20..........................4
34........DSL770-34....................... Fix Seat......................................................... .................................1
35........DSL770-35....................... Lock Pin........................................................ .................................1
36........TS-1550031..................... Flat Washer................................................... M5............................2
37........TS-1481041..................... Cap Screw..................................................... M5x16......................2
38........DSL770-38....................... Spring Pin ..................................................... .................................1
39........DSL770-39....................... Nut................................................................ M8............................1
40........DSL770-40....................... Socket Set Screw.......................................... M8x30......................1
41........DSL770-41....................... Fixed Board................................................... .................................1
42........DSL770-42....................... Nut................................................................ M8............................1
43........DSL770-43....................... Adjusting Screw............................................. M8x30 ......................1
44........DSL770-44....................... Spring............................................................ .................................1
45........DSL770-45....................... Spring Cover................................................. .................................1
46........DSL770-46....................... Slide Lever.................................................... .................................2
47........DSL770-47....................... Lock Pin........................................................ .................................1
47a......DSL770-47a..................... Lock Pin........................................................ .................................1
48........DSL770-48....................... Bushing......................................................... .................................1
49........DSL770-49....................... C-ring............................................................ ∅10..........................2
50........DSL770-50....................... Lever Bracket................................................ .................................1
51........TS-1490041..................... Cap Screw..................................................... M8x25......................1

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Index Part
No. No. Description Size Qty.
52........TS-1550061..................... Flat Washer................................................... M8............................1
53........TS-1540061..................... Hex Cap Nut.................................................. M8............................1
54........DSL770-54....................... Foot Lever..................................................... .................................1
55........DSL770-55....................... Foot Lever Pad.............................................. .................................1
Cylinder Assembly
Index Part
No. No. Description Size Qty.
1A........DSLT770-1A.................... Oil Seal*........................................................ Ø30..........................1
2A........DSLT770-2A.................... Top Nut......................................................... M90x46 ....................1
3A........DSLT770-3A.................... O-Ring*......................................................... Ø36x3.5....................1
4A........DSLT770-4A.................... Lift Piston...................................................... .................................1
5A........DSLT770-5A.................... Piston Bushing .............................................. .................................1
6A........DSLT770-6A.................... O-Ring*......................................................... .................................1
7A........DSLT770-7A.................... U-packing*..................................................... D50 ..........................1
8A........DSLT770-8A.................... Air Beather.................................................... .................................1
9A........DSLT770-9A.................... O-Ring*......................................................... Ø11x1.9....................1
10A......DSLT770-10A .................. Relief Plug..................................................... .................................1
11A......DSLT770-9A.................... O-Ring*......................................................... Ø11x1.9....................1
12A......DSLT770-12A .................. Relief Adjusting Screw................................... .................................1
13A......DSLT770-13A .................. Relief Spring ................................................. .................................1
14A......DSLT770-14A .................. Steel Ball Support.......................................... .................................1
15A......SB-5MM........................... Steel Ball....................................................... ∅5............................1
16A......DSLT770-16A .................. Valve Plug..................................................... .................................1
17A......SB-12MM......................... Steel Ball....................................................... Ø12..........................1
18A......DSLT770-18A .................. Valve Spring.................................................. .................................1
19A......SB-9MM........................... Steel Ball....................................................... Ø9............................1
20A......SB-6.5MM........................ Steel Ball....................................................... Ø6.5.........................1
21A......DSLT770-21A .................. Screw............................................................ .................................1
22A......DSLT770-22A .................. O-Ring*......................................................... Ø14x2.4....................1
23A......DSLT770-23A .................. Spring............................................................ .................................1
24A......SB-6.5MM........................ Steel Ball....................................................... Ø6.5.........................1
25A......DSLT770-25A .................. Spring............................................................ .................................1
26A......DSLT770-26A .................. O-Ring*......................................................... Ø10x1.9....................1
27A......DSLT770-27A .................. Valve Plug..................................................... .................................1
28A......DSLT770-28A .................. O-Ring*......................................................... Ø34x2 ......................1
29A......DSLT770-29A .................. Pump Cylinder............................................... .................................1
30A......DSLT770-30A .................. Screw............................................................ .................................1
31A......SB-5MM........................... Steel Ball....................................................... ∅5............................1
32A......DSLT770-32A .................. Screw............................................................ .................................1
33A......DSLT770-33A .................. Valve Plug..................................................... .................................1
34A......DSLT770-34A .................. Spring............................................................ .................................1
35A......DSLT770-35A .................. Oil Seal*........................................................ UHS23.5...................1
36A......DSLT770-36A .................. Pump Piston.................................................. .................................1
37A......DSLT770-37A .................. Oil Seal*........................................................ UHS18......................1
38A......DSLT770-38A .................. U-packing*..................................................... DH18........................1
............DSLT770-RK.................... Repair Kit...................................................... .................................1
............DSLT770-31..................... Cylinder Assembly......................................... .................................1
* Repair Kit Includes: 1a, 3a, 6a, 7a, 9a, 11a, 22a, 26a, 28a, 35a, 37a, 38a

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JET EQUIPMENT & TOOLS, INC. P.O. BOX 1349 Phone:[phone]
A WMH Company Auburn, WA 98071-1349 Fax: [phone]
www.jettools.com e-mail [e-mail]