Jet 215015 jlh-160-15 - 1.6-ton capacity 15-ft lever hoist ユーザーガイド
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The load chain supplied with
your JET lever hoist is designed,
manufactured, and tested for proper fit and
durability. If chain should ever need
replacing, 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 lever
hoist.
manufactured, and tested for proper fit and
durability. If chain should ever need
replacing, 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 lever
hoist.
Inspecting Hooks
It is important to check top and bottom hooks for
proper opening and other signs of deformation
or damage. Replace a hook immediately if any
of the following problems are identified:
proper opening and other signs of deformation
or damage. Replace a hook immediately if any
of the following problems are identified:
• The safety latch no longer contacts the
hook opening.
• The vertical angle at the neck of the hook
reaches 10
° (see Figure 3).
• Chemical corrosion or cracks on the hook.
• Excessive wear on the inside surface.
• The throat opening has enlarged. (See
• Excessive wear on the inside surface.
• The throat opening has enlarged. (See
page 11 for the maximum allowable limits
for the throat opening.)
for the throat opening.)
Do not attempt repair of a
hook by heat treating, bending or attaching
anything by welding. Such procedures will
weaken and may cause failure of the hook.
anything by welding. Such procedures will
weaken and may cause failure of the hook.
Other Inspections
1. With the lever in the up position, while
pulling down on the chain or with a load
connected, check for a clicking sound when
the handle is rotated in a clockwise
direction. If these sounds are not present, or
if irregular clicking noises develop, do not
use the hoist – have it inspected and
repaired by an authorized service center.
connected, check for a clicking sound when
the handle is rotated in a clockwise
direction. If these sounds are not present, or
if irregular clicking noises develop, do not
use the hoist – have it inspected and
repaired by an authorized service center.
2. With the lever in the up position, check free
play in handle rotation. Free play is
measured by the distance the handle travels
before resistance or gearing is felt. If free
play has reached 3/4 of a turn, brake discs
are worn and should be replaced by a JET
authorized service center.
measured by the distance the handle travels
before resistance or gearing is felt. If free
play has reached 3/4 of a turn, brake discs
are worn and should be replaced by a JET
authorized service center.
3. The brake mechanism must be kept clean
and free from dirt, water, and oil. Never
allow oil to penetrate the braking
mechanism. The brake should not slip while
using the hoist.
allow oil to penetrate the braking
mechanism. The brake should not slip while
using the hoist.
Figure 3