Product Manual

8
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.
Never extend load chain by welding a second
piece to the original.
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:
• 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 page
12 for the maximum allowable limits 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.
Other Inspections
1. Check for appropriate clicking sounds: With
the selector lever in UP position, there will
be a clicking sound when the lever handle is
rotated in either direction. When the selector
lever is in DOWN position, there will be a
clicking sound only when the lever handle is
ratcheted back into position but not as the
load is lowered. 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. If the lever hoist has not been used for an
extended period of time, check for proper
operation before putting into service.
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.
Figure 3