TM-9-2350-274-BD M109 Battlefield Damage Assessment and Repair Download
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TM 9-2350-274-BD ARMAMENT AND FIRE CONTROL SYSTEM 10-9. MANUAL PUMP FLUID LOSS (M109 Only). General Information: A damaged reservoir will cause the hydraulic oil to escape. However, because of the check valves in the system, once pressure is made, the system is independent of the reservoir. Oil contamination probability is high. There are two manual pumps in the M 109 system, manual elevation hand pump, and the equilibrator system hand pump. Limitations: None Personnel/Time Required: ● 1-2 soldiers ● 15 minutes Materials/Tools: ● Hydraulic hose (optional). ● Hydraulic line (optional). ● Adjustable wrench. ● Vicegrips. ● Water pump pliers. Procedural Steps: 1. Find and repair/correct the cause of the fluid loss. 2. Disconnect or cut the input line to the manual (hand) pump. 3. Put the input line into a can/container of hydraulic fluid as a substitute reservoir. 4. Record the BDAR action taken. When the mission is completed, as soon as practicable, repair the vehicle using standard maintenance procedures. 10-12 Change 1