Ingersoll-Rand 10000B20, Инструкция по эксплуатации, техническому обслуживанию и ремонту

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23
(Dwg. MHP0283)
BM 05 - BM 15 Brakes
MAINTENANCE
WARNING
• Before performing maintenance, disconnect the load from
the winch. A moving load can cause death, injury or
property damage.
• Disconnect electrical power source before performing any
maintenance. Accidental operation or contact with exposed
power supply can cause death, injury or property damage.
• Before starting maintenance, tag winch:
DANGER - DO NOT OPERATE -
EQUIPMENT BEING REPAIRED.
• Only allow service personnel trained in the operation and
repair of this winch to perform maintenance.
• After performing maintenance on load bearing parts, test
winch to 110% of its rated capacity before returning to
service.
Brake Adjustment (for motors manufactured by Eurodrive
only)
Refer to Drawings MHP0283 and MHP0284.
The following brake adjustment procedures are suitable for
Eurodrive motor brakes. Consult the factory for brake
adjustment procedures on other models.
If the brake lining and brake coil are satisfactory, then check
brake adjustment. A properly adjusted brake air gap is critical
for correct operation. The following table indicates the required
air gap measurement.
Motor Size Brake Size
Air Gap
in mm
DT71 - DT100 BM05 - BM4 0.010 - 0.024 0.25 - 0.6
DV112 - DV225 BM8 - BM31 0.012 - 0.047 0.4 - 1.2
Prolonged use of the brake will wear the brake disc lining. This
wear increases the air gap. When the air gap approaches its
maximum value, the brake must be readjusted. To readjust the
brake, use the following procedures:
1.
Remove the fan guard, fan retainer ring (139), fan (138),
rubber seal (130) and any accessories mounted on the
motor at the fan end.
2. Insert a feeler gauge between the brake coil body (133) and
the stationary disc (132), tighten the three brake adjustment
nuts (134) until the minimum value for the air gap is
reached equally around the brake.
3. If correct air gap adjustment cannot be achieved the brake
disc (131) may be worn beyond acceptable limits. Measure
the thickness of the brake disc to determine if this has
occurred. If the brake disc (131) is worn below the
measurement given, it must be replaced.
Motor Size Brake Size
Min. Brake Disc (131)
Thickness
in mm
DT71 - DT100 BM05 - BM4 0.354 9.0
DV112 - DV225 BM8 - BM31 0.394 10.0
4. Reinstall accessories, rubber seal (130), fan (138), fan
retainer ring (139) and fan guard.
5. Since the stationary disc (132) will move away from the
coil body (133) during the brake's operation it is important
there is free play (floating clearance) in the release arm
(135). Ensure a play of 0.06 to 0.08 in. (1.5 to 2 mm) in the
release arm (135). Refer to Dwg. MHP0284. The springs
(136) should be placed between the release arm (135) and
nuts (137) to eliminate noise.