TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 245 of 343
TM 9-2350-358-BD
SECTION V.
COMPONENT ISOLATION
11-14. GENERAL
The hydraulic system directs the flow of energy through lines, manifolds, and valves to perform a required task.
Two
manual hand pumps are used to manually elevate and equilibrate the system.
This section covers expedient repairs to
isolate the system.
This section covers expedient repairs to isolate the fuze manifold, selector valve, manual elevation
hand pump, and the equilibration hand pump.
The preferred method of repairs for these components would be to replace
them with like serviceable items since isolation of these components degrade the system in various degrees.
11-15. BYPASSING FAILED COMPONENTS
General Information:
This paragraph contains procedures for bypassing failed components.
Option 1:
Mode selector valve inoperative (isolate).
Limitations:
Degraded AFCS
Personnel/Time Required:
•
1 soldier
•
0.5-1.0 hour
Materials/Tools:
•
Cap tube (item 5, Appendix C)
•
Cap tube (item 6, Appendix C)
•
Elbow, 2 each (item 19, Appendix C)
•
High pressure hose 5/8-inch ID 4 feet long (scavenge from available source)
•
Socket, 2 each (item 29, Appendix C)
•
Hydraulic fluid (item 36, Appendix C)
References:
TM 9-2350-314-20-2-2
11-27
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