TM 9-6115-658-13&P
5-20
5-13 RESISTOR MAINTENANCE.
This task covers:
a.
Test
c. Installation
b.
Removal
INITIAL SETUP
Tools
Equipment Conditions
Tool Kit, General Mechanic's
Reference
(item 1, Appendix B)
Multimeter
Both generator sets shut down; paragraph 2-5.3.3.
Soldering Gun
Trailer handbrakes set, front support leg/landing
lowered, and rear leveling-support jack lowered;
Materials/Parts
paragraph 2-3.2.1. Switch box cover open.
Lock washers
Solder
TEST
NOTE
If testing R1 or R2, step 1 must be performed.
1. Remove four screws (1, Figure 5-10), lock washers (2), and flat washers (3) and invert relay board assembly
(4).
2. Measure resistance of R1 (5) or R2 (6) for 246.5-251.5 ohms. If resistance is out of tolerance, replace
resistor.
3. Measure resistance of R3 (11) for 246.5-251.5 ohms. If resistance is out of tolerance, replace resistor.
4. If resistors R1 and R2 are within tolerance, place relay board assembly in position and secure with flat
washers (3), lock washers (2), and screws (1).
REMOVAL
NOTE
If removing R1 or R2, step 1 must be performed.
1. Remove four screws (1), lock washers (2), and flat washers (3) and invert relay board assembly (4).
2. Tag and unsolder leads from resistor.
3. Remove two nuts (9), lock washers (8), flat washers (7), screws (10), and resistor (5, 6, or 11).
