TM 10-3930-675-20-2
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RELIEVING HYDRAULIC SYSTEM PRESSURE - CONTINUED
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4.
To further release pressure in boom hydraulic system (boom extension and lift cylinders, hoses, pipes, and valves), open
float control valve (3) and emergency control valve (4) on each locking valve at base of each lift cylinder. Leave valves
open until maintenance action is completed, then close valves before starting engine to pressurize system.
5.
When disconnecting hydraulic lines from boom folding cylinders, additional precautions are required due to residual
pressure in lines:
a.
Wear eye protection.
b.
Have a rag handy and slowly disconnect hydraulic lines.
END OF WORK PACKAGE
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