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3.7.10 Slip-Ring Assembly
The main purpose of the Slip-Ring Assembly is to provide an electrical path for the feed and switch
signal return, between the Anti-Two-Block switch and the system computer. If replacement becomes
necessary, replace the upper and lower halves of the slip-ring assembly at the same time. Failure of the
slip-ring assembly will most likely result in a continuous Anti-Two-Block alarm. For information on
testing and checking the slip-ring assembly, refer to
SECTION 3.9 ANTI-TWO-BLOCK FUNCTION
OVERVIEW
.
Figure 3.7.10 - Slip-Ring Assembly
3.7.10.1 Removing the Slip-Ring Assembly
1. Remove the Reeling Drum cover.
2. Hold the reeling drum cable on the arm of the slip-ring and cut the tie wraps.
3. Unscrew the reeling drum cable from TB2 on the arm of the slip-ring.
4. Unscrew both Phillips screws attaching the lower half of the slip-ring on the shaft; remove the
slip-ring.
5. Disconnect the two wires connecting the lower half of the slip-ring assembly at TB1-5 and TB1-6
on the sensor baseplate assembly.
Wires connect to TB1-5
and TB1-6 on Sensor
Baseplate Assembly
Lower Half mounts to
the end of the Reeling
Drum Shaft
Upper Half plugs
into and rotates on
Lower Half
Reeling Drum Cable
Cable Ties
Slip-Ring Arm
