TM 5-2420-231-23-1
0019
Table 1. Tachometer Does Not Function or Is Inaccurate - Continued.
019
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Verify Alternator Charge
Tachometer Does Not
Indicator Lamp Operation.
Function or Is Inaccurate -
Continued
1. Verify alternator charge indicator
lamp (Figure 3, Item 1) is illumi-
nated with ignition switch in the on
position and engine not running
(TM 5-2420-231-10).
2. Start and operate engine (TM 5-
2420-231-10).
3. Observe the alternator charge indi-
Alternator Charge Indicator Lamp
cator lamp (Figure 3, Item 1). The
Not Illuminated With Engine Running
alternator charge indicator lamp
- Proceed to Test Step 3.
should not be illuminated.
Alternator Charge Indicator Lamp
Remains Illuminated - Diagnose
alternator charge indicator (WP 0025)
and then proceed to Test Step 6 to verify
symptom is resolved.
Figure 3. Alternator Charge Indicator Lamp.
0019
