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TM 10-3930-659-20
12-26. PRIORITY VALVE RELIEF CARTRIDGE VALVE LEAKAGE TEST.
This task covers: Leakage Test
Initial Setup:
Equipment Conditions:
Materials/Parts:
•
Parking brake set (see TM 10-3930-659-10).
•
Rags (Item 27, Appendix C)
•
Frame locking bar Installed (see TM 10-3930-
•
One preformed packing
659-10).
Personnel Required: Two
•
Hydraulic system warmed to operating
temperature (see paragraph 2-29).
References:
•
Right transmission side guard removed -
•
TM 10-3930-659-10
(see paragraph 14-7).
Tools/Test Equipment:
•
General mechanic's tool kit (Item 44, Appendix F)
•
Plug (Item 27, Appendix F)
NOTE
A suitable container should be used to catch any draining
hydraulic fluid. Ensure that all spills are properly cleaned.
LEAKAGE TEST
1.
Remove hose (3) and preformed packing (2)
from adapter (1). Discard preformed packing.
2.
Install plug (5) on hose (3).
3.
Place suitable container (4) under adapter (1)
4.
Start engine and run at fast engine idle speed
(see TM 10-3930-659-10).
5.
Count number of drops of hydraulic fluid falling
from adapter (1) in one minute. If more than
drops of fluid leak from adapter In one minute,
place priority valve (see paragraph 12-28).
TA707602
12-65
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