TM 9-4120-408-14
4-18. 50 AMP RELAY MAINTENANCE. (Continued)
(2) Refer to paragraph 4-17 and remove electrical lead assemblies and diode assemblies.
(3) Remove two screws (6), lock washers (7), flat washers (8), and relay K3 (5). Discard lock washers (7).
c. Install.
(1) Position relayK3 (5) in condenser assembly (9) and secure with two flat washers (8), new lock washers (7),
and screws (6).
(2) Refer to paragraph 4-17 and install electrical leads and diode assemblies.
(3) Follow on maintenance: refer to paragraph 4-11 and install side panel.
4-19. CONDENSER TERMINAL BOARD MAINTENANCE
This task covers:
Remove
Install
Inspect
INITIAL SETUP:
Tools
Equipment Conditions (Continued)
Tool Kit, Service Refrigeration Unit,
Wiring Harness Electrical Leads
Material/Parts
Electrical Lead Assemblies
General Safety Instructions
Refer to TM 9-4120-408-24P for part
numbers of items to be replaced.
Do not work on equipment without
following standard shop safety
Equipment Conditions
procedures.
Air Conditioner shut down,
Ensure that power has been disconnected
before performing maintenance on
electrical components.
a. Remove.
Remove two screws (Figure 4-13, 1), lock washers (2), flat washers (3), terminal board (4) and
terminal board marker strip (5). Discard lock washers (2).
b. Inspect.
(1) Inspect terminal board (4) for cracks, broken or missing contacts, corroded or dirty contacts on the terminal
board (4).
(2) Inspect terminal board marker strip (5) for missing markings or damage.
(3) Inspect all mounting hardware for damage.
(4) Replace all defective components.
c. Install.
(1) Position terminal board marker strip (5) and terminal board (4) in condenser assembly (6) and secure with
two flat washers (3), new lock washers (2), and screws (1).
4-28