TM 10--3510--221--24
0078 00--1
TF PUMP OVERLOAD
0078 00
THIS WORK PACKAGE COVERS:
Troubleshooting TF Pump Overload 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. Use maintenance menu to turn on TF pump (WP 0010 00). Observe pump operation.
Does TF pump come on?
YES Go to step 2.
NO Go to step 3.
2. Allow TF pump to operate for approximately 1 minute. Observe pump operation.
Does TF pump stay on?
YES Return to normal operation.
NO Go to step 3.
3. Position SW2 then SW1 to OFF.
4. Open door on inverter enclosure.
5. Check TF pump overload relay.
Is lever tripped?
YES Go to step 6.
NO Go to step 13.
6. Check trip setting on overload relay.
Is setting >13.3 amps?
YES Go to step 7.
NO Set trip setting to 13.3 amps. Reset trip lever. Return to step 1.
7. Reset trip lever.
8. Position SW1 then SW2 to ON.
9. Use maintenance menu to turn on TF pump for approximately 1 minute. Observe TF pump operation.
Does TF pump operate?
YES Return to normal operation.
NO Go to step 10.
