ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
d. Release control panel by turning two fasteners and lower control panel slowly.
e. Tag and disconnect load measuring unit (69, FIGURE 2-14) electrical leads.
f. Remove screws (68) and load measuring unit (69).
2.64.3.
Installation.
a. Install load measuring unit (69, FIGURE 2-14) with screws (68).
b. Connect all electrical leads and remove tags.
c. Install control box top panel, paragraph 2.15.4.
d. Raise and secure control panel.
e. Connect negative battery cable. Close battery access door.
2.65. RESISTOR-DIODE ASSEMBLY.
2.65.1. Inspection.
a. Shut down generator set.
b. Inspect resistor-diode assembly for cracks, breaks, corrosion, bent terminals, and other damage.
2.65.2. Testing.
a. Shut down generator set.
b. Open battery access door and disconnect negative battery cable.
c. Remove control box top panel, paragraph 2.15.1.
d. Release control panel by turning two fasteners and lower control panel slowly.
N O T E
Isolate component before testing
e. Set multi meter for ohms and measure resistance across resistors R10, R11, and R12. Multimeter indication should
be between 7.125 and 7.875 ohms for each resistor.
f. Using multi meter, measure resistance across resistor R14. Multimeter indication should be between 61.75 and
68.25 ohms for MEP-804A generator set, and between 38 and 42 ohms for MEP814A generator set.
g. Using multimeter, measure resistance across resistor R15. Multimeter indication should be between 1235 and 1365
ohms.
h. Using multimeter, measure resistance across resistors R6 and R8. Multimeter indication should be between 4750
and 5250 ohms.
i. Using multimeter, measure resistance across resistors R7 and R9. Multimeter indication should be between 2850
and 3150 ohms.
j. Connect positive lead of multimeter to cathode side and negative lead to anode side of each diode CR1, CR2, CR3,
and CR4. Refer to FIGURE 2-18. Note ohms indication on multi meter for each diode.
k. Reverse multimeter leads so positive lead is connected to anode side and negative lead is connected to cathode
side of each diode CR1, CR2, CR3, and CR4. Note ohms indication on multimeter for each diode.
l. Multimeter indications should be 1:10 ratio or greater.
2-98
