Jet WRH-1320 Service manual

Operating Instructions and Parts Manual
Wire Rope Hoist
Models WRH-440/-880/-1320
WMH TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60124 Part No. M-107001
Ph.: 800-274-6848 Revision A1 8/06
www.wmhtoolgroup.com Copyright © WMH Tool Group

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This manual has been prepared for the owner and operators of a JET WRH Series Wire Rope Hoist. Its
purpose, aside from machine operation, is to promote safety using accepted operating and maintenance
procedures. To obtain maximum life and efficiency from your hoist 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 Service Center located throughout the United States can provide quick service or information.
In most cases, a WMH Tool Group Service Center 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 Service Center 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 Service Center 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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Warning
1. Read and understand the entire owners manual before attempting installation or operation.
2. Do not exceed rated capacity.
3. Supporting structure used with this device must provide adequate support to handle all hoist
operations plus the weight of the hoist and attached equipment. If in doubt, consult a registered
structural engineer.
4. Do not use the hoist in damp, wet or poorly lit conditions. Do not use electrically powered equipment
in the presence of flammable gases or liquids.
5. Do not use with twisted, kinked, frayed or otherwise damaged wire rope.
6. Do not use if hoist is damaged or malfunctioning.
7. Always take time to study the job to be performed and choose the safest method. Do not place
yourself or other people in an unsafe position.
8. Do not lift people or loads over people. Always keep people clear from load path.
9. Do not use the hoist if the hook is stretched, deformed, or has a broken or missing safety latch.
Always replace the safety latch and/or the hook before placing the hoist back in service.
10. Always keep a minimum of three (3) wraps of wire rope on the reel.
11. Never leave a suspended load unattended.
12. Do not swing a suspended load.
13. Always inspect hoist before each use. Replace any component that is damaged or malfunctioning.
Check that the wire rope is evenly wrapped around the reel and properly seated in the pulley of the
snatch block.
14. Always use gloves when handling wire rope. Do not wear loose clothing which can become entangled
in moving parts.
15. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are
careless acts that can result in serious injury.
16. Do not operate this tool while tired or under the influence of drugs, alcohol or any medication.
17. Failure to comply with the above warnings may result in personal injury and/or property damage.
Specifications
Model Number.......................................... WRH-440.........................WRH-880.......................WRH-1320
Stock Number...............................................107001.............................107002............................ 107003
Motor..........................................3/4HP, 110V, 60Hz....... 1-1/8HP, 110V, 60Hz.......1-1/2HP, 110V, 60Hz
Cable diameter (in.).............................................1/8................................. 9/64.................................3/16
With snatch block configuration:
Load capacity (lbs.)........................................440.................................. 880...............................1,320
Lifting height (ft.)...........................................16.5................................. 16.5.................................16.5
Lifting speed (FPM)..........................................19.................................... 19....................................19
With single cable configuration:
Load capacity – single cable (lbs.)..................220.................................. 440..................................660
Lifting height (ft.)..............................................33.................................... 33....................................33
Lifting speed (FPM)..........................................38.................................... 38....................................38
Net weight (lbs.)....................................................24.................................... 36....................................39
Shipping weight (lbs.)............................................26.................................... 39....................................41
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 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 Wire
Rope Hoist is installed and running properly.
Read the instruction manual thoroughly for
installation, maintenance and safety instructions.
Installation
Use an assistant to help hold the Hoist while you
secure it in place.
The Hoist can be installed on an overhead pipe
or square tubing using the hanger brackets atop
the Hoist. See Figure 1. Make sure the hanger
brackets are firmly secured to prevent the Hoist
from slipping on the pipe or tubing.
The Hoist may also be mounted to a movable
trolley that rolls along an overhead beam.
Remove the hanger brackets and use the
provided screws and washers to secure the
Hoist to the angle irons on the trolley. Figure 2
shows the mounting of the Hoist to the WRT-
2000 JET Trolley (stock no. 107004, available
from your dealer).
Operation
For proper and safe operation, the wire rope
should be evenly wrapped around the reel
(Figure 3), and seated properly in the pulley on
the snatch block.
Using the Snatch Block
The snatch block allows a 2:1 lifting ratio. The
bottom hook is looped back and inserted into the
hole on the frame (see Figure 4). The snatch
block is then attached to the load. The lifting
height is thereby halved, but the load capacity is
doubled to the maximum.
General Operating Procedure:
1. The reel will not “freewheel”; you must use
the switch to pull out or reel in the wire rope.
Press the upper part of the rocker switch on
the handle to reel in the wire rope. Press the
lower part of the rocker switch to lower the
wire rope.
NOTE: When the hook is retracted too far
into the reel, it will push the cable guide
which activates a shut off switch to prevent
damage to the Hoist.
Figure 1
Figure 2
Figure 3
Figure 4

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2. Pull out the wire rope by grasping the hook,
and pull the hook away from the hoist while
p
ressing the lower part of the rocker switch.
Always leave at least three turns of the wire
rope on the reel.
3. Attach either the main hook or the snatch
block to your load. Make sure the safety
latch on the hook closes completely before
lifting. Do not load the hook in front of the
safety latch (Figure 5), and do not use the
wire rope as a sling (Figure 6).
Make sure the hook’s safety
latch closes before lifting.
4. Stand clear, and press the rocker switch to
raise the load.
Maintenance
Unplug the hoist from the power supply
before doing any maintenance.
Inspect the hoist before each use. If cracking or
distortion appears in the frame, do not use the
hoist. Inspect the hooks – if they show wear,
twisting or any damage, replace them.
Keep hook latch pins and wire rope lightly oiled.
Inspect wire rope for kinks, corrosion, fraying,
etc. If corrosion is apparent, clean with a stiff
wire brush and lightly oil. If wire rope is
damaged or badly corroded, replace it.
Keep hoist clean of dirt, grease and water.
Replacing Wire Rope
NOTE: Replacement of the wire rope should be
done by trained service personnel. Any re-
assembly of parts of the hoist must be done
correctly to ensure safety and proper function of
the device.
Figure 5
Figure 6
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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WRH Series Wire Rope Hoists

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Parts List: WRH-440
Index No. Part No. Description Size Qty
1...............WRH440-1.............. Frame.......................................................... .........................................1
2...............WRH440-2.............. Socket Head Screw.....................................M8x20...............................2
3...............WRH440-3.............. Hanger ........................................................ .........................................2
4...............WRH440-4.............. Hex Cap Screw............................................M8x25...............................4
5...............WRH440-5.............. Lock Washer, External Tooth.......................M8....................................2
6...............WRH440-6.............. Lock Washer................................................M8....................................4
7...............WRH440-7.............. Flat Washer.................................................M8....................................4
9...............WRH440-9.............. Reel............................................................. .........................................1
10.............WRH440-10............ Weight......................................................... .........................................1
11.............WRH440-11............ Cable Clamp................................................ .........................................2
12.............WRH440-12............ Wire Rope ................................................... .........................................1
13.............WRH440-13............ Reel Cap ..................................................... .........................................1
14.............WRH440-14............ Reinforcement Clip...................................... .........................................1
15.............WRH440-15............ Lifting Hook ................................................. .........................................2
16.............WRH440-16............ Reel Shaft.................................................... .........................................1
17.............WRH440-17............ Washer........................................................ .........................................1
18.............WRH440-18............ Key..............................................................5x10mm............................2
19.............WRH440-19............ Circlip..........................................................Ø15mm.............................2
20.............WRH440-20............ Bearing........................................................160202 .............................1
21.............TS-1504091............ Socket Head Cap Screw..............................M8x45...............................1
22.............WRH440-22............ Cable Guide ................................................ .........................................1
23.............WRH440-23............ Hex Cap Screw............................................M5x14...............................6
24.............WRH440-24............ Gear Box Cover........................................... .........................................1
26.............WRH440-26............ Lock Washer................................................M5 ..................................10
27.............WRH440-27............ Bearing........................................................200...................................2
28.............WRH440-28............ Intermediate Shaft ....................................... .........................................1
29.............WRH440-29............ Grade 1 Gear............................................... .........................................1
30.............WRH440-30............ Grade 2 Gear............................................... .........................................1
31.............WRH440-31............ Gasket......................................................... .........................................1
32.............WRH440-32............ Gear Box..................................................... .........................................1
33.............WRH440-33............ Bearing........................................................180202 .............................2
34.............WRH440-34............ Rotor ........................................................... .........................................1
35.............WRH440-35............ Stator........................................................... .........................................1
36.............WRH440-36............ Motor Housing............................................. .........................................1
37.............WRH440-37............ Spring.......................................................... .........................................1
38.............WRH440-38............ Brake Hub................................................... .........................................1
39.............WRH440-39............ Gear Cover.................................................. .........................................1
40.............WRH440-40............ Hex Screw...................................................M5x140.............................4
41.............WRH440-41............ Flat Washer.................................................M5....................................4
42.............TS-1550011............ Flat Washer.................................................M3 ....................................6
43.............TS-1531012............ Phillips Pan Head Machine Screw................M3x6.................................4
44.............WRH440-44............ Fan Hood..................................................... .........................................1
45.............WRH440-45............ Fan Blade.................................................... .........................................1
46.............WRH440-46............ Hex Socket Screw ....................................... .........................................1
47.............WRH440-47............ Motor Base.................................................. .........................................1
48.............WRH440-48............ U-Washer.................................................... .........................................1
49.............WRH440-49............ Cable........................................................... .........................................1
50.............WRH440-50............ Terminal Block............................................. .........................................1
51.............WRH440-51............ Clamp Plate................................................. .........................................4
52.............WRH440-52............ Microswitch Shaft......................................... .........................................1
53.............WRH440-53............ Pan Head Self Tap Screw............................M4x16.............................10
54.............WRH440-54............ Phillips Pan Head Screw..............................M4x20...............................4
55.............TS-1550021............ Flat Washer.................................................M4 ....................................8
56.............WRH440-56............ Strain Relief.................................................Ø8mm...............................1
57.............WRH440-57............ Strain Relief.................................................Ø7mm...............................1
58.............WRH440-58............ Grounding Terminal..................................... .........................................1
59.............WRH440-59............ Pan Head Screw..........................................M4x8.................................3

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60.............WRH440-60............ Electrical Plug.............................................. .........................................1
61.............WRH440-61............ Split Pin.......................................................25x30mm..........................1
62.............WRH440-62............ Pin............................................................... .........................................1
63.............WRH440-63............ Connecting Housing..................................... .........................................1
65.............WRH440-65............ Snatch Block................................................ .........................................1
66.............TS-1550061............ Flat Washer.................................................M8 ....................................1
67.............WRH440-67............ Circlip..........................................................Ø6mm...............................1
69.............WRH440-69............ Lock Washer, External Tooth.......................M4....................................1
70.............WRH880-70............ Pan Head Self Tap Screw............................M3.5x14............................6
72.............WRH440-72............ Microswitch.................................................. .........................................1
73.............WRH440-73............ Terminal ......................................................Ø6.3mm............................6
74.............WRH440-74............ Terminal Sleeve...........................................Ø6.3mm............................6
75.............WRH440-75............ Isolating Sheath...........................................Ø3x60mm.........................3
76.............WRH440-76............ Rocker Switch.............................................. .........................................1
77.............WRH440-77............ Handle Cover............................................... .........................................1
78.............WRH440-78............ Handle Base................................................ .........................................1
79.............WRH440-79............ Strain Relief................................................. .........................................1
80.............WRH440-80............ Pan Head Self Tap Screw............................M4x18...............................3
81.............WRH440-81............ Capacitor..................................................... .........................................2
82.............WRH440-82............ Cable........................................................... .........................................1
83.............WRH440-83............ Terminal Sleeve...........................................Ø4.8..................................2
84.............WRH440-84............ Terminal ......................................................Ø4.8..................................2
85.............WRH440-85............ Microswitch Box........................................... .........................................1
86.............WRH440-86............ Microswitch Cover ....................................... .........................................1
87.............WRH440-87............ Phillips Pan Head Machine Screw................M3x25...............................2
88.............WRH440-88............ Strain Relief................................................. .........................................2
89.............WRH440-89............ Double End Stud.......................................... .........................................1
90.............WRH440-90............ Pin............................................................... .........................................2

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Parts List: WRH-880
Index No. Part No. Description Size Qty
1...............WRH880-1.............. Frame.......................................................... .........................................1
2...............WRH880-2.............. Socket Head Screw.....................................M10x26.............................2
3...............WRH880-3.............. Hanger ........................................................ .........................................2
4...............WRH880-4.............. Hex Cap Screw............................................M10x30.............................4
5...............WRH880-5.............. Lock Washer, External Tooth.......................M10 ..................................2
6...............WRH880-6.............. Lock Washer................................................M10 ..................................4
7...............WRH880-7.............. Flat Washer.................................................M10..................................4
8...............WRH880-8.............. Wedge......................................................... .........................................1
9...............WRH880-9.............. Reel............................................................. .........................................1
10.............WRH880-10............ Weight......................................................... .........................................1
11.............WRH880-11............ Cable Clamp................................................ .........................................2
12.............WRH880-12............ Wire Rope ................................................... .........................................1
13.............WRH880-13............ Reel Cap ..................................................... .........................................1
14.............WRH880-14............ Reinforcement Clip...................................... .........................................1
15.............WRH880-15............ Lifting Hook ................................................. .........................................2
16.............WRH880-16............ Reel Shaft.................................................... .........................................1
17.............WRH880-17............ Washer........................................................ .........................................1
18.............WRH880-18............ Key..............................................................5x16mm............................1
19.............WRH880-19............ Circlip..........................................................Ø17mm.............................2
20.............WRH880-20............ Bearing........................................................60203 ...............................1
21.............TS-1504091............ Socket Head Cap Screw..............................M8x45...............................1
22.............WRH880-22............ Cable Guide ................................................ .........................................1
23.............WRH880-23............ Hex Cap Screw............................................M5x17...............................6
24.............WRH880-24............ Gear Box Cover........................................... .........................................1
25.............WRH880-25............ Key..............................................................5x12mm............................1
26.............WRH880-26............ Lock Washer................................................M5 ..................................10
27.............WRH880-27............ Bearing........................................................80201 ...............................2
28.............WRH880-28............ Intermediate Shaft ....................................... .........................................1
29.............WRH880-29............ Grade 1 Gear............................................... .........................................1
30.............WRH880-30............ Grade 2 Gear............................................... .........................................1
31.............WRH880-31............ Gasket......................................................... .........................................1
32.............WRH880-32............ Gear Box..................................................... .........................................1
33.............WRH880-33............ Bearing........................................................80202 ...............................2
34.............WRH880-34............ Rotor ........................................................... .........................................1
35.............WRH880-35............ Stator........................................................... .........................................1
36.............WRH880-36............ Motor Housing............................................. .........................................1
37.............WRH880-37............ Spring.......................................................... .........................................1
38.............WRH880-38............ Brake Hub................................................... .........................................1
39.............WRH880-39............ Gear Cover.................................................. .........................................1
40.............WRH880-40............ Hex Screw...................................................M5x175.............................4
41.............WRH440-41............ Flat Washer.................................................M5....................................4
42.............TS-1550011............ Flat Washer.................................................M3 ....................................6
43.............TS-1531012............ Phillips Pan Head Machine Screw................M3x6.................................4
44.............WRH880-44............ Fan Hood..................................................... .........................................1
45.............WRH880-45............ Fan Blade.................................................... .........................................1
46.............WRH880-46............ Hex Socket Screw ....................................... .........................................1
47.............WRH880-47............ Motor Base.................................................. .........................................1
48.............WRH880-48............ U-Washer.................................................... .........................................1
49.............WRH880-49............ Cable........................................................... .........................................1
50.............WRH880-50............ Terminal Block............................................. .........................................1
51.............WRH880-51............ Clamp Plate................................................. .........................................4
52.............WRH880-52............ Microswitch Shaft......................................... .........................................1
53.............WRH440-53............ Pan Head Self-Tap Screw............................M4x16.............................10
54.............WRH880-54............ Phillips Pan Head Screw..............................M4x10...............................4
55.............TS-1550021............ Flat Washer.................................................M4 ....................................8
56.............WRH880-56............ Strain Relief.................................................Ø7mm...............................1
57.............WRH880-57............ Strain Relief.................................................Ø8mm...............................1

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58.............WRH880-58............ Grounding Terminal..................................... .........................................1
59.............WRH440-59............ Pan Head Screw..........................................M4x8.................................3
60.............WRH880-60............ Electrical Plug.............................................. .........................................1
61.............WRH440-61............ Split Pin.......................................................25x30mm..........................1
62.............WRH880-62............ Pin............................................................... .........................................1
63.............WRH880-63............ Connecting Housing..................................... .........................................1
64.............WRH880-64............ Microswitch Cover ....................................... .........................................1
65.............WRH880-65............ Snatch Block................................................ .........................................1
66.............TS-1550071............ Flat Washer.................................................M10 ..................................1
67.............WRH440-67............ Circlip..........................................................Ø6mm...............................1
68.............WRH880-68............ Spring.......................................................... .........................................1
69.............WRH440-69............ Lock Washer, External Tooth.......................M4....................................1
70.............WRH880-70............ Pan Head Self Tap Screw............................M3x14.7............................6
71.............WRH880-71............ Bracket........................................................ .........................................1
72.............WRH880-72............ Microswitch.................................................. .........................................1
73.............WRH880-73............ Terminal ...................................................... .........................................6
74.............WRH880-74............ Terminal Sleeve........................................... .........................................6
75.............WRH880-75............ Isolating Sheath...........................................Ø6x50mm.........................3
76.............WRH440-76............ Rocker Switch.............................................. .........................................1
77.............WRH440-77............ Handle Cover............................................... .........................................1
78.............WRH440-78............ Handle Base................................................ .........................................1
79.............WRH440-79............ Strain Relief................................................. .........................................1
80.............WRH440-80............ Pan Head Self Tap Screw............................M4x18...............................3
81.............WRH880-81............ Capacitor..................................................... .........................................2