TM 9-2330-246-14
4-42. 11 O-VOLT FLUORESCENT LIGHTING FIXTURE AND DOMELIGHT SWITCH WIRING
REPLACEMENT (M348A2H).
This Task Covers:
d. 110-volt Domelight Switch Wiring Installation
a.
Circuit Breaker to Terminal Board Wire Removal
e. Fluorescent Lighting Fixture Wiring Removal
b.
Circuit Breaker to Terminal Board Wire installation
c.
110-volt Domelight Switch Wiring Removal
f . Fluorescent Lighting Fixture Wiring Installation
Initial Setup:
Materials/Parts:
Equipment Conditions:
110-volt power disconnected from semitrailer.
Marker tags (Item 24, Appendix E)
q
Electrical tape (Item 28, Appendix E)
Tools/Test Equipment:
LockWashers (as required)
General mechanic's tool kit
q
a. CIRCUIT BREAKER TO TERMINAL BOARD WIRE REMOVAL
1. Open hinged door of lower circuit breaker box (1 5). Tag and disconnect wire being replaced from terminal board
(16). Refer to wiring diagrams (para 4-52).
2. Tag other end of wire being replaced. Remove nut (6), Iockwasher (5), flatwasher (4), and wire from terminal
board (3). Discard Iockwasher.
3. Pull wire through elbow (14) and conduit (13) and remove.
b.
CIRCUIT BREAKER TO TERMINAL BOARD WIRE INSTALLATION
1. Feed wire through conduit (13) and elbow (14) and into lower circuit breaker box (15).
2. Connect wire to terminal board (1 6). Remove tag. Close hinged door of lower circuit breaker box (15).
3. Connect wire to terminal board (3) using flatwasher (4), new Iockwasher (5), and nut (6). Remove tag.
110-VOLT DOMELIGHT SWITCH WIRING REMOVAL
c.
1. Remove four screws (11) and flatwashers (10) from plate (9). Remove plate and switch (8) from junction box (7).
2. Tag and disconnect wires from switch (8).
3. Tag wires connected to terminal board (3). Refer to wiring diagrams (para 4-52). Remove nuts (6), Iockwashers
(5), and flatwashers (4) securing wires to terminal board. Discard Iockwashers.
4. Pull wires through conduit (12) and remove.
110-VOLT DOMELIGHT SWITCH WIRING INSTALLATION
d.
1.
Feed wires through conduit (12).
Connect wires to switch (8). Remove tags.
2.
Install switch (8) and plate (9) on junction box (7) using four screws (11) and flatwashers (10).
3.
4.
Connect wires to terminal board (3) using flatwashers (4), new Iockwashers (5), and nuts (6). Remove tags.
4-84
