TM 5-6675-328-14
Table 7-5. DIRECT/GENERAL SUPPORT TROUBLESHOOTING PROCEDURES - Cont.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
NO DC OUTPUT WHEN ANY OF THE VOLTAGES ARE SELECTED ON THE CHARGING RATE
SWITCH AND THE TIMER IS TURNED ON - Cont
Step 2.
Check for continuity of TIMER.
(a) If continuity exists, proceed to step 3.
(b) If no continuity exists, replace TIMER (paragraph 7-20.3).
Step 3.
Check for continuity of CHARGING RATE switch.
(a) If continuity exists, proceed to step 4.
(b) If no continuity exists, replace CHARGING RATE switch
(paragraph 7-20.2).
Step 4.
Check for continuity of AMMETER.
(a) If continuity exists, proceed to step 5.
(b) If no continuity exists, replace AMMETER (paragraph 7-20.1).
Step 5.
Check resistance of diode.
(a) If back-to-front reading is significantly greater than front-
to-back reading, proceed to step 6.
(b) If incorrect resistance reading exists, replace diode
(paragraph 7-20.5).
Step 6.
Check for defective transformer.
Replace battery charger.
2. BATTERY CHARGER OPERATES BUT VOLTMETER DOES NOT INDICATE.
Check for defective VOLTMETER.
Replace VOLTMETER (paragraph 7-20.1).
7-18
