TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 169 of 828
TM 9–2350–311–20–2 3–58 3–3 TROUBLESHOOTING — CONTINUED e. CAB HYDRAULIC SYSTEM The cab hydraulic system consists of the hydraulic components of the cab elevating system, the cab traversing system, the hydraulic pump, the main accumulator, and the electrical contacts to the hull. The hydraulic system receives electrical power through the slip ring brush holder and power relay box assembly. Electricity is provided to the gunner’s selector switch box assembly, the hydraulic pump, and the main accumulator pressure switch. Hydraulic power is provided to the system by way of the pressure regulator, power valve, and power pack assembly. Other components include sight gage assembly, pump reservoir, and system pressure gage. TO COLLIMATOR BLOCK DIAGRAM