TM 5-6115-593-12
TO 35C2-3-463-1
Table 4-3. Organizational Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. CLOCK FAILS TO OPERATE.
Step 1.
Use multimeter to check for 24V DC across recrank inhibit relay K6 (part of AC-DC control relay assembly,
18, figure 4-19).
If present, refer K6 to next higher level of maintenance for testing.
If 24V DC is absent, proceed to next step.
Step 2.
Use a multimeter (set for AC voltage) to check for 120V AC at terminals 1 and 2 of digital clock M111 (78,
figure 4-22).
If 120V AC is absent, check wiring connections.
If 120V AC is present, refer digital clock to next higher level of maintenance for testing.
13. CLOCK CANNOT BE ADJUSTED
Step 1.
Test 50/60 Hz switch S52 (9, figure 4-22) according to paragraph 4-40.
If defective, replace switch (see paragraph 4-40).
Step 2.
Test HR ADJ switch S51 (10, figure 4-22) according to paragraph 4-40.
If defective, replace switch (see paragraph 4-40).
Step 3.
Test MIN ADJ switch S50 (10, figure 4-22) according to paragraph 4-40.
If defective, replace switch (see paragraph 4-40).
Step 4.
Test HOLD TIME switch S49 (10, figure 4-22) according to paragraph 4-40.
If defective, replace switch (see paragraph 4-40).
If malfunction persists, refer digital clock M111 (78, figure 4-22) to next higher level of
maintenance for testing.
14. GENERATORS CANNOT BE SET UP IN PARALLEL (DROOP).
NOTE
This malfunction assumes that each generator functions properly as a single unit.
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