Specifications

Inspection of friction disc and electromagnet
Motor brake type Binder
WARNING!
Unintended operation
Bring the car down to rest on the buffer springs.
Switch off, lock and tag the main switch before
inspection can take place.
Can cause severe bodily injury or death.
Check air gap by means of a feeler gauge.
Replace the friction disc
The friction disc must be replaced before the air-gap exceeds
maximum (B) mm. Nominal value (A) mm.
Fixing bolts (6 pcs) tightening torque: 25 Nm
Hand release mechanism
Check air gap (C) for manual release device according to sketch.
If the brake cannot be electrically released, check:
– that the rectifier is in order and energized.
– that the brake contactor is in order.
– the voltage to the magnet coil (nominal 102V DC).
– the resistance of the coil (nom. approximately D Ohm, see
table).
Replace electromagnet housing with coil if the coil is defective.
IMPORTANT: Do NOT replace the brake’s rectifier of the
type with booster function with a common rectifier type.
ALIMAK 34617 - 1 /06
E 8
Air gap A / B between
magnet housing and armature
Air gap C
Manual release device
Motor Nominal Maximum Air Nominal
size air gap air gap gap coil resistance
A B C D
8.8 kW 0.35 mm 1.5 mm 1.7 mm ≈ 130 Ohm
13 kW 0.35 mm 1.5 mm 1.7 mm ≈ 130 Ohm