TM 10--3510--221--24
0025 00--1
DRUM NO ROTATION
0025 00
THIS WORK PACKAGE COVERS:
Troubleshooting Drum No Rotation Fault
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
Power must be applied at main control
Multimeter (Item 2, WP 0272 00)
enclosure (WP 0010 00).
1. Observe operator panel display.
Does display indicate ”DRUM INVERTER FAULT”?
YES Go to DRUM INVERTER FAULT.
NO Go to step 2.
2. Use maintenance menu to rotate drum at ”TUMBLE CW”, ”TUMBLE CCW” , ”DISTRB CCW”, ”LO EXT
CCW”, and ”HI EXT CCW (WP 0010 00). Observe drum rotation.
Does drum rotate at all directions and speeds?
YES Go to step 3.
NO Go to step 7.
3. Observe operator panel display.
Does display indicate ”DRUM NO ROTATION”?
YES Go to step 4.
NO Return to normal operation.
4. Use maintenance menu to rotate drum at CW tumble speed.
5. Observe LED on drum rotation sensor.
Does LED come on and go off rapidly?
YES Go to TYPICAL DISCRETE INPUT SIGNAL FAULT (WP 0107 00) to check drum rotation
sensor input signal.
NO Go to step 6.
6. Check adjustment of drum rotation sensor (WP 0118 00).
Is sensor properly adjusted?
YES Go to TYPICAL DISCRETE INPUT SIGNAL FAULT (WP 0107 00) to check operation of drum
rotation sensor.
NO Adjust drum rotation sensor as necessary.
