Jet Tools L-100 User Manual
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Operating Instructions and Parts Manual
L-100 Series Hand Chain Hoists
For L100-200 serial no. 15070001 and higher
For L100-300 serial no. 15070043 and higher
For L100-1500 serial no. 15070088 and higher
JET
427 New Sanford Road
LaVergne, Tennessee 37086 Part No. M-106210
Ph.: 800-274-6848 Revision D1 07/2018
www.jettools.com Copyright © 2018 JET
1-ton model shown
1.0 IMPORTANT SAFETY INSTRUCTIONS
WARNING – To reduce risk of injury:
1. Read and understand the entire owner’s
manual before attempting assembly or
operation.
2. Read and understand the warnings posted
on the tool and in this manual. Failure to
comply with all of thes e war nin gs may cause
serious injury and/or damage to property.
3. Replace the warning labels if they become
obscured or are missing.
4. Keep visitors a safe dist ance from the work
area. Keep children away.
5. Give your work undivided attention. Look ing
around, carrying on a conversation and
“horse-play” are car e les s a c ts that c an res u lt
in serious injury.
6. Provide for adequate space surrounding
work area and non-glare, overhead lighting.
7. This chain hoist is designed and intended for
use by properly trained and experienced
personnel only. If you are not familiar with
the proper and safe operation of a chain
hoist, do not use until proper training and
knowledge have been obtained.
8. Do not use this chain hoist for other than its
intended use. If used for other purposes,
JET disclaims any real or implied warranty
and holds itself harmless from any injury that
may result from that use.
9. Do not use to lift people or loads over
people.
10. Do not exceed the rated capacity of the
chain hoist.
11. Do not use more than hand power to pull t he
hand chain.
12. Do not use the load chain as a sling; this
may cause damage to the chain.
13. Always inspect the chain hoist for damage
prior to use. If the chain hoist is damaged,
do not use until it has been repaired or
replaced.
14. Do n ot use more than one chain hoist to lif t
or move a load. If this is unavoidable, each
chain hoist must have the s ame capacity as
the load to be moved.
15. Never allow the load chain to “set” over
sharp edges. All lifts must be made with
straight chain that is free of obstacles.
16. If the hand c hain is difficult to operate, then
the load exceeds the capacity of the chain
hoist. Select a chain hoist of larger capacity.
17. Do not use a chain hoist unless load is
centered between top and bottom hooks.
18. 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.
19. Stand to one side of the load being lifted and
make sure no one else is standing
underneath when lifting a load. Should a
load slip, it will descend at a high rate of
speed and can cause serious injuries to
anyone standing directly underneath.
20. Leave all internal m aintena nce to a qualif ied
JET Service Center.
21. Replace the chai n with factory replacement
chain only. Do not use any other type of
chain.
22. If welding near the hoist, do not allow the
chain or hook to be touched by a live
electrode. Prevent weld splatter upon the
chain.
23. Never use the chain hoist if either hook is
stretched, deformed, or has a broken or
missing safety latch. Always replace the
safety latch and/or the hook before placing
the chain hoist back into service.
24. Understand an d follow all pr ocedures as set
forth in American National Standards titled
“Performance Standard for Hand Chain
Manually Operated Chain Hoists.”
ANSI/ASME HST-2; and “Overhead Hoists
(Underhung),” ANSI/ASME B30.16. These
standards are available through the
American Societ y of Mechanical E ngineers,
www.ASME.org
WARNING: This product can expose
you to chemicals including lead, which is
known to the State of California to cause
cancer and birth defects or other
reproductive harm. For more information go
to http://www.p65warnings.ca. gov.
2
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 tool damage.
This means that if precautions are not heeded, it may result in serious injury or possibly
even death.
2.0 Table of Contents
1.0 IMPORTANT SAFETY INSTRUCTIONS ............................................................................................... 2
2.0 Table of Contents ................................................................................................................................... 3
3.0 Introduction ............................................................................................................................................ 4
4.0 Specifications ......................................................................................................................................... 5
5.0 Using the Chain Hoist ............................................................................................................................ 6
5.1 Prior to Operation ............................................................................................................................... 6
5.2 Hooking the Load ............................................................................................................................... 7
5.3 Raising the Load................................................................................................................................. 7
6.0 Hand Chain – Cutting and Ins talli ng ...................................................................................................... 8
7.0 Load Chain and Bottom Hook ................................................................................................................ 9
7.1 Load Chain Inspect io n (all m odels ) .................................................................................................... 9
7.2 Load Chain Removal (all models) ...................................................................................................... 9
7.3 Attaching Load Chain to Load Chain Sprocket (all models)............................................................... 9
7.4 Load Chain and Bottom Hook Installation ........................................................................................ 10
7.5 Chain Installation: 0.5- to 2-Ton Hoists ............................................................................................ 10
7.6 Chain Installation: 3- to 5-Ton Hoists ............................................................................................... 10
7.7 Chain Installation: 10- to 20-Ton Hoists ........................................................................................... 11
8.0 Overload Protection ............................................................................................................................. 11
9.0 Inspection and Maintenance ................................................................................................................ 12
10.0 Load Limits ......................................................................................................................................... 13
10.1 Load Chain ..................................................................................................................................... 13
10.2 Hooks (Top & Bottom) .................................................................................................................... 13
11.0 Troubleshooting JET® Manual Chain Hoists ...................................................................................... 14
12.0 Timing Marks for Gear Replacement ................................................................................................. 15
13.0 Replacement Parts ............................................................................................................................. 15
13.1.1 L-100 Chain Hoist Parts Breakdown ........................................................................................... 16
13.1.2 Parts List: L100-25 Chain Hoist (0.25 Ton) ................................................................................. 17
13.1.3 Parts List: L100-50 Chain Hoist (0.5 Ton) ................................................................................... 19
13.1.4 Parts List – L100-100 Chain Hoist (1 Ton) .................................................................................. 21
13.1.5 Parts List – L100-150 Chain Hoist (1.5 Ton) ............................................................................... 23
13.1.6 Parts List – L100-200 Chain Hoist (2 Ton) .................................................................................. 25
13.1.7 Parts List – L100-300 Chain Hoist (3.0 Ton) ............................................................................... 27
13.1.8 Parts List – L100-500 Chain Hoist (5 Ton) .................................................................................. 29
13.1.9 Parts List – L100-1000 Chain Hoist (10 Ton) .............................................................................. 31
13.1.10 Parts List – L100-1500 Chain Hoist (15 Ton) ............................................................................ 33
13.1.11 Parts List – L100-2000 Chain Hoist (20 Ton) ............................................................................ 35
14.0 Warranty and Service......................................................................................................................... 37
3.0 Introduction
This manual is provided by JET covering the safe operation and maintenance procedures for a JET
Model L-100 Series Chain Hoist. This manual contains instructions on installation, safety precautions,
general operating procedures, maintenance instructions and parts breakdown. This hoist has been
designed and constructed to provide consistent, long-term operation if used in accordance with
instructions set f orth in this manual. If there are a ny questions or comm ents, please contact either your
local supplier or JET. JET can also be reached at our web site: www.jettools.com.
The L-100 Chain Hoist complies with ANSI/ASME B30.16 and HST-2 standards.
4
4.0 Specifications
5
5.0 Using the Chain Hoist
5.1 Prior to Operation
1. Support for the hoist may be hook, clevis pin,
trolley, or beam clamp. Whatever method of
suspension is chos en, the s upport componen ts
must be rated equal to, or greater than the
capacity of the chain hoist.
2. If the chain hoist has not been used for an
extended period of time, check for proper
operation before putting into service.
3. The brak e mechanism must be kept c lean and
free from dirt, wat er, and oil. Never allo w oil to
penetrate the brake mechanism. Always keep
your chain hoist clean and s tore in a clean, dry
location.
4. Although oiling the chain is not mandatory, a
light coat of 30-weight oil applied periodically to
the chain will create easier operation and
prolong the life of the chain.
5. Check the chain for damage and elongation.
Replace damaged chain b efore us ing the chain
hoist.
The load chain suppl ied with your JET chain hoist
is designed, manuf actured, and tested f or pro per fit
and durability. Over a peri od of tim e, the chain ma y
need to be replaced. For your own safety, use
factory replacement chain only.
Use of other than factory
replacement chain may cause serious injury
and/or damage to the hoist.
6. T he top and bottom hooks on your JET chain
hoist are designed to open to warn of an
overload. Both top and bo ttom hooks for 0.5 to
5 ton hoists have two indicator points ( A, Figure
1) cast into the hook for m easurem ent. Refer to
Table 2 (page 13) to de term ine if a hook needs
to be replaced.
Hooks for 10- and 20-ton hoists do not have
indicator points. Measurements are made at
the jaw opening (B, Figure 1).
7. It is important to check top and bottom hooks
for proper opening. If the safety latch no longer
contacts the hook opening, replace the hook.
Never side load the top or bottom hook; this
practice is dangerous and could lead to
serious injury.
8. If the vertical angle at the n eck of the bo ttom or
top hook reaches 10°, replace the hook (see
Figure 2).
Figure 1
Figure 2
5.2 Hooking the Load
1. Secure the upper hook.
2. Place the bottom hook securely into the object
to be lifted.
3. Place ropes or chain in the c enter of the bo ttom
hook, making sure the safety latch is secure.
Never load the hook in front of the saf ety latch.
See Figure 3.
4. Avoid lifting one load with two ho ists. If this is
unavoidable, appl y equal weight to both hoists
and use hoists with the proper lift capacity.
Capacity of each hoist must be equal to the
total load to be lifted.
5. Check that the chain is not twisted at the
bottom hook. All welds should face the same
direction (Figure 4).
6. For hoists with two or more falls of chain, m ake
sure the bottom hook is not turned over. This
may cause the chain to twist.
5.3 Raising the Load
To raise the load, pull the right side of the hand
chain (A, Figure 5) clockwise.
To lower the load, pull the left side of the hand
chain (B, Figure 5) counterclockwise.
Figure 3
Figure 4
Important: Make sure the hoist has an adequate
length of load chain to rais e or lower the load in a
safe manner. Do not attempt to lower the hoist
beyond its limit.
Figure 5
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6.0 Hand Chain – Cutting and
Installing
To cut the hand chain in order to increase or
shorten:
To change the length of th e hand chain, the chain
must be cut and links added to increase the over all
length or links removed to decrease the length.
This is done as follows:
1. Insert one link lengthwis e into the vise (Figure
6). Be sure that the s ide opposite the we ld lies
completely below the surface of the vise jaw
(about 1/3 of a link). This prevents nicking or
cutting the lower part of the link.
2. Using a hack saw, cut through th e up per p ar t of
the link at the weld.
3. Loosen the link, r eposition the link verticall y at
the edge of the vise with the level of the cut
above the vise jaw (Figure 7).
4. Tighten the vise jaw.
5. Using an adjustable wrench, twist the link
horizontally from fr ont to ba ck . ( Figur e 8) Ope n
just far enough to ins ert (or remove) a second
chain link.
Figure 6
Figure 7
Note: Chain length is now ready to lengthen or
shorten.
6. Insert or remove the second end link at the
opening in the first end link.
7. Using an adjustable wrench, twist the link
horizontally until the li nk is in the or ig ina l c l osed
position. See Figure 9.
Do not push the link inward
from the curved ends. This will distort the lin k.
Check that the link is closed and free of twist.
8. If installing entire ne w chain, insert the end of
the hand chain into the groove at t he top of the
hand chain wheel (see Figure 10). Rotate the
hand chain wheel and pull the chain through.
9. Re-weld the link at the cut.
10. Grind off excess on the weld so that it is
smooth.
Figure 8
Figure 9
8
7.0 Load Chain and Bottom
Hook
7.1 Load Chain Inspection (all models)
Over time, the load chain will wear or elongate.
This can cause dam age to the hoist, breakage, or
non-engagement of the load sheave.
Do not operate the hoist with a
twisted, kinked or damaged load chain. Do not
splice the load chain. Check the chain for
excessive wear or stretch. Failure to comply
may cause serious injury.
1. Test the hois t under load in both the liftin g and
lowering directions, obser ving the operation of
chain and sprockets. Chain should feed
smoothly into and away from the sprock ets .
2. If the chain binds, jumps, or is noisy, make sure
it is clean and properl y lubricated . If the trouble
persists, inspect the chain and mating parts for
wear, distortion, or other damage.
3. Clean th e chain before i nspection. Exam ine for
gouges, nicks, weld splatter, corrosion, and
distorted links. Slacken the chain and move
adjacent links to one s ide, looking for wear at
the contact points. If you see wear or suspect
stretching, measure the chain as follows:
7.3 Attaching Load Chain to Load
Chain Sprocket (all models)
Install the new load chain onto the load chain
sprocket as follows, referring to Fig. 10:
1. Position the load chain sprocket by rotating the
hand chain wheel so that t he wide and narrow
grooves show.
2. Insert the load chain into t he sprocket grooves
so that the chain wi ll win d u p an d back over the
sprocket. Welds must face away from the
sprocket.
3. Rotate the hand chain wheel so that the load
chain falls six to eig ht inches at th e back of the
sprocket.
• Select an unworn, unstretched length of
chain (i.e. at the slack end).
• Suspend the chain vertic ally under tension
and, using a caliper type gauge, measure
the outside length of several links about 12
to 24 inches.
• Measure the s ame number of links in us ed
sections and calculate the percentage of
the increase in length.
4. If the length of used chain exceeds 2-1/2
percent of the unused chai n, replace the cha in.
(See “Load Limits” on pag e 13 for specific link
measurements.)
Do not add to the load chain.
Replace the entire ch ain. Failure to compl y may
cause serious injury.
7.2 Load Chain Removal (all models)
Remove the old load chain as follows while
referring to Figure 11:
1. Remove the cotter pin (A) and the chain anchor
pin (C) on the chain anchor (D), allowing the
end of the chain to fall free.
2. Pull the hand chain (Fig. 5) until the load chain
is completely removed from the gear assembly.
Figure 10
Referring to Figure 11:
4. Insert one end of the chain link (B) into the
chain anchor (D).
5. Insert the chain anchor pin (C) through the
chain anchor (D) and chain link ( B) and secure
with the cotter pin (A).
Figure 11
Continue with Load Chain and Bottom Hook
Installation on th e f ol low ing pag e, proc eed in g t o the
section that applies to your hoist: 1/2- to 2-Ton
hoists, 3- to 5-Ton hoists, or 10- to 20-Ton Hoists.
9
7.4 Load Chain and Bottom Hook
Installation
The following procedure assumes that the load
chain has been attached to the chain anchor (A,
Figure 12) and fed thr ough the load chain sprocket
as described in the previous section. This section
completes the load chain and bottom hook
installation.
7.5 Chain Installation: 0.5- to 2-Ton
Hoists
Referring to Figure 12:
1. Remove the lock nut and bolt from the lower
hook (D).
2. Insert the last chain link (C) into the lower hook
slot.
3. Re-insert the bolt through the lower hook slot
and chain link.
A
C
B
D
4. Re-attach the lock nut to the bolt and tighten.
7.6 Chain Installation: 3- to 5-Ton
Hoists
Referring to Figure 13:
1. After installing the load chain into the load
chain sprocket (B), run the remaining chain
through your hand to remove any twist. The
last link of the chain must be in the same
direction as the first. If not, cut off the last link.
2. Insert the last link into the pulley of the lower
hook (C).
3. Pull the load chain through and up from the
underside of the pulley (C, D).
4. Remove the c otter pin and chain anc hor pin in
the upper hook slot (E).
5. Insert the last link into the upper hook slot.
6. Check that the load chain is not twisted.
0.5 to 2 Ton
Figure 12
A
B
E
D
C
7. Re-position the chain anch or pin back through
the upper hook slot an d the last chain link and
secure with the cotter pin.
10
3 to 5 Ton
Figure 13
7.7 Chain Installation: 10- to 20-Ton
Hoists
Referring to Figure 14:
1. After installing the load chain into the load
chain sprocket (B), run the remaining chain
through your hand to remove any twist. The
last link of the chain must be in the same
direction as the first. If not, cut off the last link.
2. Insert the last link into the left side p ulle y of the
lower hook (C).
3. Pull the load chain through and up from the
underside of the pulley (C, D).
4. Insert the last link into the right hand pulley of
the upper hook, moving the chain up, then
around and down (D, E). Check that the load
chain is not twisted and w elds face away from
the pulley.
5. Insert the last link into the right side pulley of
the lower hook, pulling around, then up from
the underside of the pulley (E, F). Check that
the load chain is not twisted and welds face
away from the pulley.
6. Remove the cotter pin and chain anchor pin in
the upper hook slot (G).
7. Insert the last link into the upper hook slot.
8. Check that the load chain is not twisted.
Re-position the ch ain anchor pin back through the
upper hook slot and the la st chain link and secure
with the cotter pin.
G
A
C
B
D
E
F
10 Ton
Figure 14
8.0 Overload Protection
Some models of the L-100 Hoist have overload
protection in the form of a slip clutch (these are
identified by “WO” in the model number). The slip
clutch is effective at 160% +/- 20% of the rated hoist
capacity.
The slip clutch will allow the hand chain pulley to
move without lifting the lo ad, if the load is too heavy
for the hoist. The sl ip clutch has been pre-adjusted
at the factory and should not require any
adjustment by the user. If future adjustment or
repair to the slip cl utch sho uld ever be needed, th is
must be done by qualified personnel.
11
9.0 Inspection and
Maintenance
Read and follow ANSI Inspection and
Maintenance Instruct ions. Know the meaning of
Frequent Inspection, Periodic Inspection,
Normal Service, Heavy Service, and Severe
Service. It is the customer’s responsibility to
understand and follow all ANSI and JET
inspection and maintenance instructions.
All repairs and adjustments
are to be performed by trained and
experienced personnel using procedures
that are approved for t he hoist system being
serviced. Failure to comply may cause
serious injury.
All safety related def iciencies
discovered in the inspection are to be
corrected before the hoist is to be placed
back into service. Failure to comply may
cause serious injury.
Check for internal damage
whenever external damage has occurred.
Failure to comply may cause serious injury.
1. Clean hoist after each use and oil lightly.
NOTE: Do not get oil on brake system.
2. Do not drop or drag the hoist.
3. Store the hoist in a clean and dry
environment.
4. While not mandatory, periodically oiling the
chain with SAE 30 oil will increase its life.
5. Leave all repairs and adjustm ents of internal
parts to qualified repair personnel.
6. Inspect the load chain and the lower hook
after lifting a maximum weight load.
7. This hoist uses special alloy hoisting chain
and does not interchange with any other
manufacturer. All replacement chain must
be purchased from your JET distributor or
from JET directly by calling 800-274-6848.
8. Check and inspect the brake system
frequently.
9. Annuall y, the hoist should be disas sembled,
inspected, and cleaned by trained and
experienced person nel only. Contact a JET
authorized service center by calling your
dealer or visiting our web site at
jettools.com.
10. After servicing, test the hoist with no load,
then test the hoist with a load.
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