R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist TMU Motorized Trolley - Manual (Page 20)

LM TMU I&M MANUAL/EN/06.15.2009
20/38
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3.10 Trouble Shooting – Brake
3.10.1 Compact Brake
The Compact brake is used on the MF06 inverter motor only.
Brake will not release:
y
Air gap too large ⇒ adjust air gap
y Presence of foreign matter ⇒ clean brake
y Check Motor Parameter setting ⇒ consult Section 4.2.3
Insufficient braking torque:
y
Grease on lining ⇒ replace lining
y Damaged lining ⇒ replace lining
y Air gap too large ⇒ adjust air gap
y Worn friction material ⇒ replace lining
3.10.2 D.C. Disc Brake
The D.C. Disc brake is used on the two-speed motor only.
Brake will not release:
y
Presence of foreign matter ⇒ clean brake
y Bad rectifier ⇒ replace rectifier
Insufficient braking torque:
y
Grease on lining ⇒ replace lining
y Damaged lining ⇒ replace lining
y Air gap too large ⇒ replace friction material
y Worn friction material ⇒ replace friction material