TM
55-1730-229-12
AG
320A0-OMM-000
TO
35C2-3-473-1
TM
1730-12/1
Table 4-2.
Organizational Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
(continued)
9.
Step 3.
Refer to FO-9 and check indicator wiring.
a. Replace or repair any defective wiring.
b.
Connect lead containing diode to positive terminal on
indicator socket. If all wiring is good, replace lamp socket
c. Perform operational check.
HYDRAULIC CONTROL PANEL INDICATOR LIGHT TEST FAILS - NO INDICATORS LIGHT.
10.
Step 1.
Check that indicator lenses are not closed, and that MASTER SWITCH is
on.
Open lenses by turning counterclockwise.
Step 2.
Check hydraulic panel CIRCUIT BREAKER.
If circuit breaker is closed (pushed in), go to step 3.
a.
b.
If circuit breaker is open (out), reset by pushing in. If
circuit breaker continues to open, check all circuit breaker
loads (see FO-9) for shorts.
Step 3.
Connect battery and set MASTER SWITCH to ON. On hydraulic panel, set
PANEL LIGHTS switch to BRT position and check hydraulic module panel
lights. Set PANEL LIGHTS and MASTER SWITCH to OFF.
If panel lights lit, do step 4.
a.
b.
If panel lights did not come on, go to step 5.
Step 4.
Disconnect battery and test hydraulic panel PRESS TO TEST LIGHTS
switch 4S3 (see malfunction 80).
a. Replace switch if defective (paragraph 4-90).
b.
If switch tests good, remove hydraulic module front panel
assembly (2, figure 1-10). Check wiring between switch 4S3
and diodes 4D1 through 4D8 for continuity (see FO-9).
Replace any defective wiring.
