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OPERATION
To reduce the risk of injury, carefully check unit for
external damage prior to installation. Do not oper-
ate a damaged or malfunctioning hoist. Do not
operate a hoist with a twisted, kinked or damaged
chain. Operating a unit with obvious external dam-
age may cause load to drop resulting in personal
injury and/or property damage.
Curved Beam Operation
MILWAUKEE trolleys can operate on curved beams. Slightly increased
spacing may be required on curved beams-the radius will determine the
amount of the increase (Chart 2).
Chart 2 - Locknut Torque
Minimum
Model
Radius
9621
48 in.
9641
60 in.
9661
60 in.
page 6
WARNING!
Locknut Torque
125 ft.-lbs
125 ft.-lbs
150 ft.-lbs
MAINTENANCE
Inspection
To maintain continuous and satisfactory operation, a regular inspection
procedure must be initiated so that worn or damaged parts can be
replaced before they become unsafe. This trolley should be inspected
periodically for wear and its continued ability to support the load. The
frequency of inspection will depend on the severity of trolley use. It is
recommended that the user begin with a monthly inspection and extend
periods to quarterly, semi-annually or annually bassed on monthly expe-
rience.
The trolley should be visually inspected for the following conditions:
• Loose locknuts
• Sideplate damage or bending
• Hanger plate wear, cracks, or distortion
• Wheel wear, cracks, or worn bearings.
Any worn parts should be replaced immediately (Chart 3).
Chart 3 - Replacement Parts List
Wheel
Model
Ball Bearing
9621
45-94-0265
02-04-1720
9641
45-94-0270
02-04-2600
9661
45-94-0275
02-04-2750
Retaining Ring
34-60-1250
34-60-1875
34-60-2080
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