TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–48 Change 2 3–3 TROUBLESHOOTING CHART — CONTINUED d. ELEVATING SYSTEM — CONTINUED (1) CANNON DOES NOT ELEVATE OR DEPRESS UNDER POWER OR MANUALLY, BUT HY- DRAULIC PRESSURE IS NORMAL. INITIAL SETUP Tools Artillery and turret mechanic’s tool kit (SC 5180–95–CL–A12) yes no A Verify fault is corrected. Continue normal opera- tions. Notify support mainte- nance. END OF TASK 1. Check pressure of nitrogen charge in primary accumulator assembly (para 19–5), secondary accumulator (para 19–6), and manual pump accumulator assembly (para 19–3). 2. Charge as necessary (para 19–5, 19–6, and 19–3). 3. Adjust equilibrated elevating system after charging accumulators (para 6–3.1). Does cannon elevate or depress? EQUILIBRATED ELEVATING CYLINDER SECONDARY ACCUMULATOR PRIMARY ACCUMULATOR