7
MAINTENANCE & INSPECTION
Periodic maintenance checks on the hoist components are recommended to make sure
there is no damage. Do not attempt to repair defective parts. Only Global approved that
meet specifications for strength and dimensions must be used. Please contact Global
Industrial Customer Service (1-800-645-2986) for replacement chains, hooks, etc.
1. Inspect the chain with load in both chain travel directions. The chain should feed
smoothly into and away from the sprocket. If there are any binds or jumps, apply
lubrication and clean the chain. Check for deformation, distortion or damage to any of the
links at any connection points.
2. Greatest wear usually occurs at high and low lift points. Chain must be replaced before
the case is worn past 0.015” deep as shown in image 8.
3. Check the hooks for bending, twisting or distortion. The hook must be replaced if it is bent
more than the dimension shown in image 9.
4. Check all hook latches, trolley parts, springs, and load bearing components.
Apply lubricant if necessary and replace any parts as necessary.
5.
Check brake function when the hoist is operating. The brake needs adjusting if the load
drifts down before the motor starts. To adjust brake, use a hex key through the hole in
the brake cover, and turn counterclockwise to tighten brake or clockwise to loosen brake.
Lubrication
Regular lubrication enables the hoist to operate at high level with long-lasting service.
1. Air Line Lubricator – It is important to monitor the lubricator as it provides lubrication for
the control valve and motor. ONLY motor oil or machine oil (10W) should be used.
2. Load & Coil Chains – Keep chains clean regularly. Small amounts of lubrication routinely
will increase the performance and life of the chains. Avoid letting the chains run dry.
3. Upper Hook & Control Shaft - Small amounts of SAE60 can be used on the upper hook
shank and the control shaft at bearing points.
Image 8
Image 9
Hoist Rated
Load (lb.)
Hook Throat Opening
Normal
Opening
Replace Hook
if
Opening
is
Greater Than
300
1-1/8”
1-9/32”
500
1-1/8”
1-9/32”
1000
1-1/8”
1-9/32”
