ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
4-190
(4)
Close output box access door.
b. Testing.
(1)
Shut down generator set, paragraph 2.11.2.
(2)
Open BATTERY ACCESS door (Figure 1-2), and disconnect negative battery cable.
(3)
Open output box access door (Figure 1-2).
(4)
Tag and disconnect wires from terminals X1, X2, and A2 of cranking relay (20, Figure 4-28).
(5)
Connect a jumper wire between terminals A1 and X1 of cranking relay (20).
(6)
Connect negative battery cable to battery.
(7)
Connect X2 wires disconnected in step 4 to cranking relay (20) terminal X2. Listen for audible
actuation.
(8)
Set multimeter for ohms, and check for continuity between terminals A1 and A2 of cranking relay
(20). If no continuity is indicated, cranking relay is defective. Notify next higher level of
maintenance.
(9)
If cranking relay (20) is not defective, disconnect negative battery cable.
(10) Remove jumper wire from cranking relay (20).
(11) Connect wires to terminals X1 and A2 of cranking relay (20). Remove tags.
(12) Close output box access door.
(13) Connect negative battery cable to battery, and close BATTERY ACCESS door.
c. Replacement.
(1)
Shut down generator set, paragraph 2.11.2.
(2)
Open BATTERY ACCESS door (Figure 1-2), and disconnect negative battery cable.
(3)
Open output box and right side engine compartment access doors (Figure 1-2).
(4)
Tag and disconnect electrical leads from cranking relay (20, Figure 4-28).
(5)
Remove locknuts (18), screws (19), and cranking relay (20) from output box.
(6)
Install cranking relay (20), screws (19), and locknuts (18) on output box.
(7)
Connect electrical leads to cranking relay (20). Remove tags.
(8)
Close output box and right side engine compartment access doors.
(9)
Connect negative battery cable to battery, and close BATTERY ACCESS door.
4.12.8 Load Output Terminal Board TB2.
