WMH Tool Group JET TSLT-770 Service manual

Operating Instructions and Parts Manual
Tilting Scissor Lift Table
Model TSLT-770
WMH TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60123 Part No. M-140770
Ph.: 800-274-6848 Revision A 2/04
www.wmhtoolgroup.com Copyright © WMH Tool Group

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This manual has been prepared for the owner and operators of a JET TSLT-770 Tilting Scissor Lift Table.
Its purpose, aside from tool operation, is to promote safety using accepted operating and maintenance
procedures. To obtain maximum life and efficiency from your scissor lift table and to aid in using it safely,
please read this manual thoroughly and follow the instructions carefully.
Warranty and Service
WMH Tool Group warrants every product it sells. If one of our tools needs service or repair, one of our
Authorized Repair Stations located throughout the United States can provide quick service or information.
In most cases, a WMH Tool Group Repair Station can assist in authorizing repair work, obtaining parts, or
perform routine or major maintenance repair on your JET product.
For the name of an Authorized Repair Station in your area, please call 1-800-274-6848, or visit our web
site at www.wmhtoolgroup.com
More Information
Remember, WMH Tool Group is consistently adding new products to the line. For complete, up-to-date
product information, check with your local WMH Tool Group distributor, or visit our web site at
www.wmhtoolgroup.com
WMH Tool Group Warranty
WMH Tool Group 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 ALL PRODUCTS
UNLESS SPECIFIED OTHERWISE. This Warranty does not apply to defects due directly or indirectly to
misuse, abuse, negligence or accidents, normal wear-and-tear, repair or alterations outside our facilities,
or to a lack of maintenance.
WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE,
BEGINNING FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL. EXCEPT AS STATED
HEREIN, ANY IMPLIED WARRANTIES OR MERCHANTABILITY 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. IN NO EVENT SHALL WMH TOOL GROUP
BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, 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 Repair Station designated by our office. Proof of purchase date and an
explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, we
will either repair or replace the product at our discretion, or refund the purchase price if we cannot readily
and quickly provide a repair or replacement. We will return the repaired product or replacement at WMH
Tool Group’s expense, but if it is determined there is no defect, or that the defect resulted from causes
not within the scope of WMH Tool Group’s warranty, then the user must bear the cost of storing and
returning the product. This warranty gives you specific legal rights; you may also have other rights, which
vary from state to state.
WMH Tool Group sells through distributors only. Members of the WMH Tool Group reserve the right to
effect at any time, without prior notice, alterations to parts, fittings and accessory equipment, which they
may deem necessary for any reason whatsoever.

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Table of Contents
Warranty and Service ..............................................................................................................................2
Warning...................................................................................................................................................4
Introduction..............................................................................................................................................5
Specifications..........................................................................................................................................5
Unpacking ...............................................................................................................................................6
Contents of the Shipping Container......................................................................................................6
Assembly.................................................................................................................................................6
Operation.................................................................................................................................................7
Maintenance............................................................................................................................................7
Replacement Parts..................................................................................................................................8
Parts List for TSLT-770 Tilting Scissor Lift Table...................................................................................9
TSLT-770 Tilting Scissor Lift Table.....................................................................................................11

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Warning
1. Read and understand the entire owners manual before attempting assembly or operation.
2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with
all of these warnings may cause serious injury.
3. Replace the warning labels if they become obscured or removed.
4. Do not use this scissor lift table for other than its intended use. If used for other purposes, WMH Tool
Group disclaims any real or implied warranty and holds itself harmless from any injury that may result
from that use.
5. Check damaged parts. Before further use of the tool, a guard or other part that is damaged should be
carefully checked to determine that it will operate properly and perform its intended function. Check
for alignment of moving parts, binding of moving parts, breakage of parts, mounting and any other
conditions that may affect its operation. A guard or other part that is damaged should be properly
repaired or replaced.
6. Do not allow anyone to sit or ride on the scissor lift table. Serious injury could occur if the tool tips
over.
7. Do not load scissor lift beyond its rated capacity.
8. Secure load before raising or moving scissor lift. Do not transport load in the raised position.
9. Use only on smooth, level finished floors.
10. Pull release lever fully to allow load to descend in a controlled manner; keep hands and feet clear of
table when lowering load.
Familiarize yourself with the following safety notices used in this manual:
This means that if precautions are not heeded, it may result in minor injury and/or
possible machine damage.
This means that if precautions are not heeded, it may result in serious injury or possibly
even death.
- - SAVE THESE INSTRUCTIONS - -

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Introduction
This manual is provided by Jet covering the safe operation and maintenance procedures for a Model
TSLT-770 Tilting Scissor Lift Table. This manual contains instructions on installation, safety precautions,
general operating procedures, maintenance instructions and parts breakdown. This tool 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.
Specifications
Model Number........................................................................................................................... TSLT-770
Stock Number................................................................................................................................ 140770
Rated Capacity (lbs) ............................................................................................................................770
Table Size (L x W x H) (in)..................................................................................................36 x 24 x 1-3/4
Maximum Table Height – Front (in)........................................................................................................36
Maximum Table Height – Back (in).........................................................................................................60
Minimum Table Height (in)...............................................................................................................17-1/8
Maximum Table Tilt (deg) ......................................................................................................................45
Table Height to Start Tilt (in)..................................................................................................................17
Foot Strokes to Reach Maximum Height........................................................20 without load, 48 with load
Handle Height (in)............................................................................................................................37-3/4
Approximate Net Weight (lbs) ..............................................................................................................309
Approximate Shipping Weight (lbs) ......................................................................................................326
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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Unpacking
Open container and check for shipping damage.
Report any damage immediately to your
distributor and shipping agent. Read the
instruction manual thoroughly for assembly,
maintenance and safety instructions.
Contents of the Shipping Container
1 Tilting Scissor Lift Table
1 Handle Assembly
1 Buffer Assembly
1 Foot Lever
2 M12 x 25 Hex Cap Screws
2 M12 Flat Washers
2 M12 Lock Washers
6 M10 x 25 Hex Cap Screws
6 M10 Lock Washers
6 M10 Hex Nuts
1 Owner's Manual
1 Warranty Card
Assembly
Tools required for assembly:
14mm and 19mm wrenches
hammer
1. Attach the handle (A, Figure 1) to the frame
using two M12 x 25 hex cap screws, two
M12 lock washers, and two M12 flat
washers. Tighten with a 19mm wrench.
NOTE: The two rear casters can be locked
so they do not rotate. Press foot lever (B,
Figure 1).
2. Insert the foot lever (A, Figure 2) into the
link rod (B, Figure 2). Align the holes in foot
lever and link rod, and insert the pin (C,
Figure 2) through the holes. Tap the pin into
place with a hammer.
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.
Figure 1
Figure 2

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4. Route the cable (A, Figure 3) into the cable
nut (B, Figure 3). Run the unsheathed end
of the cable through the lowering
mechanism (C, Figure 3) and pull the cable
tight by rotating the screw (E, Figure 3).
Tighten the hex nut (D, Figure 3) using a
14mm wrench.
NOTE: You may have to turn the screw to line
up the hole. This will allow the cable to pass
through freely.
5. With the table still raised, mount the buffer
assembly (#74, page 11) to the table with
six M10 x 25 hex cap screws (#77), six M10
lock washers (#76) and six M10 hex nuts
(#63). Tighten the nuts securely.
Operation
1. The table can be raised by pumping the foot
lever.
NOTE: During transit, air may have seeped
into the pump. To bleed air out of the
hydraulic system, raise and lower the table
several times to work any air bubbles out of
the pump.
2. To lower the table, pull the release lever
fully. This allows the table to lower in a slow,
controllable manner.
3. Before loading, always lock the caster
brake.
Maintenance
Lubricate each friction point monthly with #2
tube grease.
Check the movement and wear of the wheels.
Always store with table in lowered position when
not in use.
Check for oil leakage from the hydraulic
cylinder. The scissor lift table was filled at the
factory with approximately 0.35 liters of
hydraulic oil. Add oil as needed.
To add oil proceed as follows:
1. Raise the table until it is clear of the
hydraulic cylinder. Place a 2” x 4” straight up
and down between table and frame to
prevent the table from coming down.
2. Remove the oil plug (#12, page 11) and add
hydraulic oil into the hole, as shown in
Figure 4. The oil level should be 1/8” to 1/4”
below the bottom edge of the oil plug hole.
Figure 3
Figure 4

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3. When finished, screw the oil plug back into
the hole.
NOTE: If you wish to completely drain and refill
the hydraulic cylinder, first disconnect the
cylinder from the scissor lift frame. Remove the
oil plug and drain the oil. Reconnect the
hydraulic cylinder to the frame and fill the
cylinder with oil according to the instructions
above. Always replace the oil plug after filling
the cylinder.
Troubleshooting
The numbers in parentheses refer to the breakdowns on the following pages.
Trouble Probable Cause Remedy
No oil in reservoir. Replenish reservoir.
Lowering valve (33) or steel ball (21)
is not seating. Clean lowering valve (33) or steel ball (21) or replace.
Steel ball (22) is not seating. Clean or replace steel ball (22).
Table will not rise.
Relief valve is not adjusted properly. Reload truck within load capacity and
adjust valve by pressure relief
adjusting screw.
Lowering valve (33) or steel ball (21)
is not seating. Clean or replace lowering valve (33) or steel ball (21).
Table will not remain
elevated. Oil seal (5) or U-packing (8) is worn
out. Replace oil seal (5) or U-packing (8).
U-packing (8) is worn out. Replace U-packing (8).
Table will not lower. Lowering valve plug (33) is clogged. Replace lowering valve plug (33).
Oil leaks from
lowering valve. O-ring (32) is worn out. Replace O-ring (32).
Oil leaks from pump
cylinder. U-packing (47) is worn out. Replace U-packing (47).
Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call
1-800-274-6848 between 7:00 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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Parts List for TSLT-770 Tilting Scissor Lift Table
Index No. Part No. Description Size Qty
1...............TSLT770-1.............. Ram Piston.................................................. .........................................1
2...............TSLT770-2.............. Dust Seal* ...................................................30 x 38 x 7mm..................1
3...............TSLT770-3.............. O-Ring* .......................................................29.85 x 3.5mm..................1
4...............TSLT770-4.............. Cover........................................................... .........................................1
5...............TSLT770-5.............. Oil Seal........................................................81 x 89 x 2mm..................2
6...............TSLT770-6.............. O-Ring*.......................................................21.6 x 2.4mm....................1
7...............TSLT770-7.............. O-Ring*.......................................................44.5 x 3.1mm....................1
8...............TSLT770-8.............. U-Packing* ..................................................40 x 50 x 6mm..................1
9...............TSLT770-9.............. Piston Bushing............................................. .........................................1
10.............TSLT770-10............ Reservoir..................................................... .........................................1
11.............TSLT770-11............ O-Ring*.......................................................8.5 x 1.8mm......................2
12.............TSLT770-12............ Oil Plug........................................................ .........................................1
13.............TSLT770-13............ Pump Cylinder............................................. .........................................1
14.............TSLT770-14............ Oil Seal........................................................46 x 58.5 x 2mm ...............1
15.............TSLT770-15............ Snap Ring....................................................26mm ...............................1
16.............TSLT770-16............ Mesh Filter Plug........................................... .........................................1
17.............TSLT770-17............ Valve Base.................................................. .........................................1
18.............TSLT770-18............ Spring..........................................................0.8 x 5 x 10.5mm ..............1
19.............TSLT770-19............ Adjusting Pin................................................ .........................................1
20.............TSLT770-20............ Hex Nut w/ Shoulder....................................M3....................................1
21.............SB-6MM.................. Steel Ball.....................................................6mm .................................3
22.............SB-7MM.................. Steel Ball.....................................................7mm .................................1
23.............TSLT770-23............ Spring..........................................................0.5 x 9.2 x 20.5mm............1
24.............SB-12MM................ Steel Ball.....................................................12mm ...............................1
25.............TS-1523041............ Socket Set Screw........................................M16 x 12...........................1
26.............TSLT770-26............ Adjusting Pin................................................ .........................................1
27.............TSLT770-27............ Adjusting Spring...........................................1.6 x 6.8 x 19mm ..............1
28.............TSLT770-28............ O-Ring*.......................................................7.7 x 1.9mm......................1
29.............TSLT770-29............ Relief Adjusting Screw................................. .........................................1
30.............TSLT770-30............ Relief Adjusting Cap.................................... .........................................1
31.............TSLT770-31............ Spring.......................................................... .........................................1
32.............TSLT770-32............ O-Ring*.......................................................4.9 x 1.8mm......................2
33.............TSLT770-33............ Lowering Valve............................................ .........................................1
34.............TSLT770-34............ Cam ............................................................ .........................................1
35.............TS-1503071............ Socket Head Cap Screw..............................M5 x 30.............................1
36.............TSLT770-36............ Jack Body.................................................... .........................................1
37.............TSLT770-37............ Copper Washer ...........................................20 x 26 x 1.5mm ...............1
38.............TSLT770-38............ U-Ring.........................................................20 x 28 x 1.5mm ...............1
39.............TSLT770-39............ Back-Up Ring*.............................................20 x 26 x 3.3mm ...............1
40.............TSLT770-40............ Special Screw.............................................. .........................................1
41.............SB-4MM.................. Steel Ball.....................................................4mm .................................3
42.............TSLT770-42............ Spring..........................................................1 x 4.8 x 10mm .................1
43.............TSLT770-43............ Special Slotted Head Screw......................... .........................................2
44.............TSLT770-44............ Spring..........................................................0.5 x 3.7 x 10mm ..............2
45.............TSLT770-45............ Plunger Piston.............................................∅18 x 133mm ..................1
46.............TSLT770-46............ Plunger Cylinder.......................................... .........................................1
47.............TSLT770-47............ U-Packing....................................................18 x 24 x 8mm..................1
48.............TSLT770-48............ Dust Seal* ...................................................18 x 26 x 4.5mm ...............1
49.............TSLT770-49............ Spring..........................................................5 x 50 x 160mm ................1
50.............TSLT770-50............ Spring Cap .................................................. .........................................1
51.............TSLT770-51............ Pedal Cap.................................................... .........................................1
52.............TSLT770-52............ Foot Pedal................................................... .........................................1
53.............TSLT770-53............ Pin...............................................................∅8 x 39mm ......................1
54.............TSLT770-54............ Rubber Plug ................................................ .........................................2
55.............TSLT770-55............ Link Rod...................................................... .........................................1
56.............TSLT770-56............ Bushing.......................................................20 x 23 x 35mm................1

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Index No. Part No. Description Size Qty
57.............TSLT770-57............ Cotter Pin ....................................................3.2 x 25mm.......................1
58.............TSLT770-58............ Clevis Pin ....................................................∅14 x 49mm ....................1
59.............TSLT770-59............ Clevis Pin Cap............................................. .........................................1
60.............TSLT770-60............ Link Plate..................................................... .........................................2
61.............TSLT770-61............ Pin............................................................... .........................................1
62.............TSLT770-62............ Adjusting Nut............................................... .........................................1
63.............TS-1540071............ Hex Nut.......................................................M10................................23
64.............TSLT770-64............ Steel Cable Release.................................... .........................................1
65.............TS-1492011............ Hex Cap Screw............................................M12 x 25...........................2
66.............TS-1551081............ Lock Washer................................................M12 ..................................2
67.............TS-2360121............ Flat Washer.................................................M12 ..................................2
68.............TSLT770-68............ Handle Assembly......................................... .........................................1
69.............TSLT770-69............ Release Cap................................................ .........................................1
70.............TSLT770-70............ Release Lever............................................. .........................................1
71.............TSLT770-71............ Roller...........................................................∅38 x 22mm ....................4
72.............TSLT770-72............ Bottom Scissors........................................... .........................................1
73.............TSLT770-73............ Top Scissors................................................ .........................................1
74.............TSLT770-74............ Buffer Assembly........................................... .........................................1
75.............TSLT770-75............ Table Assembly........................................... .........................................1
76.............TS-1551071............ Lock Washer................................................M10 ................................22
77.............TS-1491031............ Hex Cap Screw............................................M10 x 25.........................26
78.............TSLT770-78............ Link Pin .......................................................∅18 x 60mm ....................1
79.............TSLT770-79............ Snap Ring....................................................18mm ...............................1
80.............TSLT770-80............ Link Pin .......................................................∅22 x 358mm ..................1
81.............TS-1550071............ Flat Washer.................................................M10 ..................................8
82.............TSLT770-82............ Shaft............................................................∅22 x 286mm ..................1
83.............TSLT770-83............ Snap Ring....................................................16mm ...............................2
84.............TSLT770-84............ Link Pin .......................................................∅16 x 52mm ....................2
85.............TSLT770-85............ Frame.......................................................... .........................................1
86.............TSLT770-86............ Front Caster ................................................ .........................................2
87.............TS-1492091............ Hex Cap Screw............................................M12 x 90...........................1
88.............TS-1540081............ Hex Nut.......................................................M12..................................1
89.............TSLT770-89............ Locking Pin.................................................. .........................................1
90.............TSLT770-90............ Swivel Caster............................................... .........................................2
91.............TS-2311061............ Hex Nut.......................................................M6....................................1
.................TSLT770-RK........... Repair Kit..................................................... .........................................1
Items marked with * are included in the Repair Kit.