TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
Page 187 of 828
TM 9–2350–311–20–2 3–76 3–3 TROUBLESHOOTING — CONTINUED e. CAB HYDRAULIC SYSTEM — CONTINUED (6) GUNNER’S OR ASSISTANT GUNNER’S CON- ROL HANDLE DOES NOT RETURN TO NEU- TRAL POSITION WHEN RELEASED. INITIAL SETUP Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) Materials/Parts Hydraulic fluid (OHT) (item 21, Appx D) Equipment Condition Discharge hydraulic pressure (para 6–3) Replace faulty control as- sembly (para 6–19 or para 6–20). Ensure hydraulic filter assembly indicators are in bypass mode to check for foreign matter in hydraulic fluid. Is foreign matter present? yes no yes no FILTER ASSEMBLY DIPSTICK FILTER ELEMENT NOTE Step B applies only to M109A4/M109A5 howitzers. Proceed to step C for M109A2/M109A3 howitzers. CONTINUED ON NEXT PAGE A B Turn MASTER and CAB POWER switches to OFF. Did gunner’s or assistant gunner’s control handle return to neutral position? Notify support mainte- nance.