TM 55-1730-229-34
AG 320A0-MME-000
TO 35C2-3-473-2
TM 1730-34/1
Table 2-2.
Direct/General Support Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WATER ACCUMULATION AT BOTTOM OF RESERVOIR (SHOWS AT BOTTOM OF RESERVOIR LEVEL
17.
GAUGE).
Step 1.
Check whether 0.5 PSI check valve is stuck closed by removing and
replacing valve (paragraph 8-10).
Step 2.
Check whether 2 PSI relief valve is stuck open by removing and
replacing valve (paragraph 8-10).
AGPU RESERVOIR CANNOT OVERFLOW WHEN IT SHOULD.
18.
Shut down complete unit. Remove and replace 2 PSI relief valve
according to the procedures of paragraph 8-10.
AGPU RESERVOIR OVERFLOWS WHEN OPERATING IN THE AIRCRAFT MODE (RESERVOIR
19.
SELECTOR SET TO AIRCRAFT).
Shut down complete unit and replace 100 PSI check valve (item 53, figure
a. Disassemble module according to procedure of paragraph 8-16
steps a. through h.
Remove 100 PSI check valve, copper seal, and packing.
b.
Install new 100 PSI check valve, copper seal and packing.
c.
Re-assemble module according to the procedures of paragraph
d.
SYSTEM READY LIGHT STAYS OFF, FLUID TEMPERATURE OVER 70F.
20.
Step 1.
Ensure that SYSTEM READY lamp is good as shown by lamp test.
Shut down complete unit and replace temperature sensor TS1:
Step 2.
a. Disassemble module to gain access to the temperature sensor
part (78, figure 8-14) of the return manifold. Use procedure
of paragraph 8-16 steps a. through ah.
Remove temperature sensor TS1 (12, figure 8-11) along with
b.
its associated packing.
c. Ensure that TS1 hole in manifold is clean.
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