Hitachi L Series, Руководство по обслуживанию

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6-5. Inspection of the electromagnetic brake
Please refer to ‘ Figure 1’ and check the wear and operation status of each part. The brake gap is set to an
appropriate value at shipment, however, it will become larger due to wear of the lining etc. with use. When the slip
amount from the time of releasing the push-button to when the hoisted load stops, exceeds the limit given in ‘
Table
1’, please adjust.
Table 1: Appropriate slip value and limiting slip value (mm)
Figure 1 : Structure of the brake
Table 2 : Electromagnetic brake gap (mm)
Appropriate slip value 5 - 15mm
Limiting slip value 20mm
Appropriate gap 0.3 - 0.5
Limiting gap 1.0
Screw
Lock washer
U-nut
Solenoid
Brake spring
Brake stud
Brake disc
Brake base
Brake gap
Brake wheel