Manitowoc Published 07-19-16, Control # 249-01 5-9
2250 SERVICE/MAINTENANCE MANUAL HOISTS
4. Thoroughly inspect the brake bands for cracks and
corrosion when the bands are removed. This procedure
also applies to band assemblies that are received in
exchange for bands that were removed for relining.
The inspection method must include nondestructive
testing—magnetic particle (MT) or ultrasound (UT).
The primary area to inspect is the dead-end attachment
area on the band (Figure 5-7
).
If there is evidence of cracks or a 10% reduction in the
area due to corrosion, destroy and discard the band and
replace it with a new band or a band that has passed
nondestructive testing/inspection. Contact your
Manitowoc Cranes dealer for brake band thickness.
Have the band part number available at the time of the
request.
5. Perform treadle valve checks and make necessary
adjustments.
FIGURE 5-7
Primary Inspection Area
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