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18 MHD56087 - Edition 4
REVIEW COPY 6
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21
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02
6. BRAKES. Individually test brakes installed to ensure proper
operation. Brakes must hold a 125% rated load at mid drum
without slipping. If indicated by poor operation or visual
damage, disassemble and repair brake(s). Check all brake
surfaces for wear, deformation or foreign deposits. Clean and
replace components as necessary. Adjustments can be made
to the drum band brake to compensate for normal brake
lining wear. Refer to ‘Adjustments’ in the
“MAINTENANCE” section. If brake band cannot be
adjusted to hold rated load, replace the brake band assembly.
Adjustments cannot be made to the disc brake. The disc brake
must be repaired as described in the “MAINTENANCE”
section.
7. FOUNDATION or SUPPORTING STRUCTURE. Check for
distortion, wear and continued ability to support winch and
rated load. Ensure winch is firmly mounted and that fasteners
are in good condition and tight.
8. LABELS AND TAGS. Check for presence and legibility of
labels. Replace if damaged or missing.
9. DRUM GUARD (optional feature). Verify fasteners are tight
and in good condition. Ensure guard is in good condition.
10. EMERGENCY STOP VALVE (optional feature). During
winch operation verify the emergency shut-off valve
operation. Valve must stop winch operation quickly. Valve
must reset properly. Refer to ‘Emergency Stop Valve’ in the
“OPERATION” section for procedures.
11. OVERLOAD DEVICE (optional feature). Ensure overload
device is properly set to stop the winch when loads exceed
150% (+/- 25%) of winch rated capacity. If winch does not
shut down, contact your distributor or the factory for repair
information.
Winches Not in Regular Use
1. Equipment which has been idle for a period of one month or
more, but less than six months, shall be given an inspection
conforming to the requirements of ‘Frequent Inspection’
before being placed in service.
2. Equipment which has been idle for a period of over six
months shall be given a complete inspection conforming with
the requirements of ‘Periodic Inspection’ before being place
in service.
3. Standby equipment shall be inspected at least semiannually
in accordance with the requirements of ‘Frequent
Inspection’. In abnormal operating conditions equipment
should be inspected at shorter intervals.