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Page Title:
Table 2-2. Direct/General Support Troubleshooting - continued |
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  TM
55-1730-229-34
AG
320A0-MME-000
TO
35C2-3-473-2
1730-34/1
TM
Table 2-2.
Direct/General Support Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10.
MAXIMUM PRESSURE AT HYDRAULIC MODULE OUTPUT AT ALL TIMES.
Shut down complete unit and check PRESSURE RELIEF valve for contamination,
blockage or valve malfunction:
a.
Remove (paragraph 8-7.a.) and clean valve and clean the
manifold hole where the PRESSURE RELIEF valve fits.
Inspect valve cartridge for signs of blockage (i.e., lodged
b.
bits of packing). Replace valve cartridge if necessary.
Replace valve packing.
c.
d.
Re-install PRESSURE RELIEF valve (paragraph 8-7.b.) and
verify operation.
OUTPUT PRESSURE GAUGE ALWAYS INDICATES ZERO.
11.
Shut down complete unit and check GAUGE SHUTOFF valve:
a.
Remove (paragraph 8-7.a.) and clean valve and clean manifold
hole where GAUGE SHUTOFF valve fits.
Inspect valve cartridge for signs of blockage (i.e., lodged
b.
bits of packing). Replace valve cartridge if necessary.
c.
Replace valve packing.
d.
Re-install GAUGE SHUTOFF valve (paragraph 8-7.b.) and verify
operation.
HYDRAULIC SYSTEM PRESSURE CANNOT BE RELEASED AT END OF HYDRAULIC SERVICING
12.
OPERATION.
Check HIGH PRESSURE BYPASS valve for blockage:
a. Remove (paragraph 8-7.a.) and clean valve and clean manifold
hole where HIGH PRESSURE BYPASS valve fits.
Inspect valve cartridge for signs of blockage (i.e., lodged
b.
bits of packing). Replace valve cartridge if necessary.
2-8
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