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TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download

Page 115 of 552

TM 9-2350-311-34-2 d. ELEVATING SYSTEM -CONTINUED (1) CANNON DOES NOT ELEVATE OR DEPRESS SMOOTHLY. 1 INITIAL SETUP 1 Tools Artillery and turret mechanic’s tool kit (SC 5180-95-CL-A12) References TM 9-2350-311-20-2 Inspect bearings and headed grooved pins in equilibrated elevation mechanism assembly eyes for damage (para 6-11). Are bearings or headed grooved pins damaged? Replace bearings or head- ed grooved pins (para 6-11). HEADED GROOVED EQUILIBRATED ELEVATION PIN MECHANISM ASSEMBLY BEARING .-_- __-- ---2 .*---------- Check nitrogen pressure in primary accumulator assembly (TM 9-2350-311-20-2). Is pressure between 850 to 900 psi (5861 to 6206 kPa)? Charge primary accumula- tor assembly (TM 9-2350- 311-20-2). If charge does not hold, repair or replace primary accumulator as- sembly (para 6-8). PRIMARY ACCUMULATOR ASSEMBLY CONTINUED ON NEXT PAGE Change 2 2-49