TM 5-2420-231-23-1
0026
Table 1. Air Filter Restriction Indicator Fault.
0026
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Air Filter Restriction
Test Step 1. Verify Correct Operation
Indicator Fault
of Air Filter Restriction Indicator.
1. Turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
2. Start and operate engine (TM 5-
2420-231-10) for approximately 10
minutes.
3. Observe air filter restriction warn-
Air Filter Restriction Indicator On
ing indicator (Figure 1, Item 1) (TM
(Amber) - Proceed to Test Step 2.
5-2420-231-10).
Air Filter Restriction Indicator Off,
but Does Not Illuminate Even When
Restricted - Proceed to Test Step 6.
Figure 1. Air Filter Restriction Indicator.
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