Quantcast Appendix A: CONVERTING THE OH-58A HYDRAULIC SYSTEM FROM MIL-H-5606 TO MIL-H-83282 HYDRAULIC FLUID

 

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Page Title: Appendix A: CONVERTING THE OH-58A HYDRAULIC SYSTEM FROM MIL-H-5606 TO MIL-H-83282 HYDRAULIC FLUID
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Section V. PRIORITY LOCATIONS FOR CONVERSION
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TB-55-1500-334-25 Conversion of Aircraft to Fire Resistant Hydraulic Fluid Manual
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Appendix B: CONVERTING THE AH-1G/UH-1C/M HELICOPTER HYDRAULIC SYSTEMS FROM MIL-H-5606 TO MIL-H-83282 HYDRAULIC FLUID
TB 55-1500-334-25
APPENDIX A
CONVERTING THE OH-58A HYDRAULIC SYSTEM
FROM MIL-H-5606 TO MIL-H-83282
HYDRAULIC FLUID
A-6. Connect a hose to the return filter of sufficient length
A-1. Following procedures in TM 55-1520-2282u, remove
to reach a container overboard for contaminated fluid.
and clean in solvent the following parts of the hydraulic
system:
A-7. Start test stand and adjust pressure to 600 psi.
a. Reservoir
A-8. Cycle the collective full-up to full-down 10 times.
With collective full-down, move the cyclic in a circle 10
b. Pump inlet hose
times. When fluid appears clean, shut down test stand.
Connect test stand return line to helicopter, start test
c. Pump outlet hose
stand, and cycle controls again a minimum of 10 times.
A-9. Remove test stand connections; install clean filter
d. Return hose from filter to reservoir
elements and all lines and components removed in step
1.
e. Pump case drain hose.
A-10. Fill hydraulic pump through return port with MIL-H-
A-2.  Remove and drain hydraulic pump by turning
83282 and install pump.
splined shaft by hand.  Turn shaft until fluid no longer
drains from pressure and return ports. Fill pump through
A-11. Fill reservoir with MIL-H-83282.
return port with MIL-H-83282 and repeat the above
procedures.
A-3. Cap or plug all openings.
A-4. Remove filter elements and reinstall filter bowl.
A-5.  Connect ground test stand pressure line to quick
disconnect at filter. Insure ground test stand has been
serviced with MIL-H-83282.
A-1/(A-2 blank)

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