ARMY TM 9-6115-545-24
AIR FORCE TO 35C2-3-444-12
MARINE CORPS TM 09244A/09245A-24/2
2-65.3
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.
2-66
RESISTOR-DIODE ASSEMBLY.
2-66.1
a.
b.
2-66.2
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
1.
m.
n.
o.
2-96
Inspection.
Shut down generator set.
Inspect resistor-diode assembly for cracks, breaks, corrosion, bent terminals, and other damage.
Testing.
NOTE
Isolate diode before testing.
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Release control panel by turning two fasteners and lower control panel slowly.
Set multimeter 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.
Using multimeter, measure resistance across resistor R14. Multimeter indication should be between 61.75 and
68.25 ohms for MEP-806A generator set, and between 38 and 42 ohms for MEP-816A generator set.
Using multimeter, measure resistance across resistor RI 5. Multimeter indication should be between 1235 and
1365 ohms.
Using multimeter, measure resistance across resistors R6 and R8. Multimeter indication should be between
4750 and 5250 ohms.
Using multimeter, measure resistance across resistors R7 and R9. Multimeter indication should be between
2850 and 3150 ohms.
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 multimeter for each diode.
Reverse multimeter leads so positive lead is connected to anode side and negative lead is connected to cath-
ode side of each diode CR1, CR2, CR3, and CR4. Note ohms indication on multimeter for each diode.
Multimeter indications should be 1:10 ratio or greater.
If any indications are other than above, replace defective component.
If no repair is needed, install control box top panel, paragraph 2–15.4.
Raise and secure control panel.
Connect negative battery cable and close battery access door.
