TM 10--3510--221--24
0026 00--1
DRUM BRAKING SLOW
0026 00
THIS WORK PACKAGE COVERS:
Troubleshooting Drum Braking Slow 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
enclosure (WP 0010 00).
NOTE
Pressure in air system must be maintained above 80 psig while performing this procedure.
1. Use maintenance menu to apply and remove brake (WP 0010 00) while observing operation of brake
caliper.
Does brake caliper extend and retract.?
YES Go to step 2.
NO Go to step 11.
2. Use maintenance menu to rotate drum at Lo extract speed.
3. Use maintenance menu to apply brake. Observe braking operation
Does drum rotation stop within 10 seconds?
YES Go to step 4.
NO Go to step 6.
4. Use maintenance menu to rotate drum at Hi extract speed.
5. Use maintenance menu to apply brake. Observe braking operation.
Does drum rotation stop within 20 seconds?
YES Return to normal operation.
NO Go to step 6.
6. Position SW2 then SW1 to OFF.
7. Check brake pads for wear (WP 0111 00).
Are brake pads worn?
YES Replace brake pads (WP 0120 00).
NO Go to step 8.
