TM 10--3510--221--24
0194 00--1
BLOWER OVERLOAD RELAY REPLACEMENT
0194 00
THIS WORK PACKAGE COVERS:
Removal, Installation
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tags (Item 9, WP 0271 00)
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
LADS power shut off at main control
Multimeter (Item 2, WP 0272 00)
enclosure (WP 0112 00).
REMOVAL
WARNING
The inverter drive must discharge before it is safe to disconnect wire connections. DEATH
ON CONTACT may result if personnel fail to observe this safety precaution.
1. Loosen eleven latches (1), then lift door (2) off of inverter enclosure (3).
2. Loosen two captive screws (4), then remove cover (5) from inverter drive (6).
3. Verify CRG indicator (7) is off and use a multimeter to verify voltage is not present at output bus (8).
4. Install cover (5) onto inverter drive (6), then secure with two captive screws (4).
5. Place door (2) onto inverter enclosure (3), then secure by tightening eleven latches (1).
6. Loosen six latches (9), then open door (10) on heater enclosure (11).
7. Tag and disconnect wires from overload relay (12).
8. Loosen three screw terminals (13), then pull overload relay (12) off of contactor (14).
