TM 1-1740-221-13&P&P
FIELD MAINTENANCE
ELECTRIC PANEL (CENTER CONSOLE)
INITIAL SETUP:
Test Equipment
References
Multimeter (WP 0157, Item 14)
Tools and Special Tools
Fuse Puller Tool (WP 0157, Item 9)
Equipment Condition
General Mechanic Tool Box (WP 0157, Item 24)
Engine Shut Down
Personnel Required
91B, Light Wheel Vehicle Mechanic
INSPECTION
NOTE
Access to the electric panel is located under the center console panel between the seats.
1.
Inspect fuses, circuit breakers, and relays for damage affecting serviceability.
2.
Insect wiring inside center console electric panel for corrosion, damaged connectors and sockets, exposed
wiring, and faulty mounting.
END OF TASK
TEST
NOTE
Disconnect battery negative cables prior to performing all test procedures
Glow Plug Relay (CRGP)
1. Disconnect either wire (Figure 1, Item 16).
2. Ohms test across both terminals (Figure 1, Item 16).
3. Resistance measured should be 15 ohms nominally.
4. Disconnect wire from terminal (Figure 1, Item 15).
5. Ohms test across both terminals (Figure 1, Item 15).
6. Resistance measured should be ininity/open (no continuity).
Starter Relay
1. Remove wiring from starter relay this work package.
2. Ohms test across relay coil terminals (Figure 1, Item 12).
3. Resistance measured should be 15 ohms nominally.
4. Ohms test across relay terminals (Figure 1, Item 10).
5. Open circuit or no continuity should exist.
6. Replace relay if either ohms test fails.
END OF TASK
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