TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 b. Inspection and Repair 1 Clean all parts (Chapter 2). 2 Inspect 58 white, off-white, or yellow, large bearing balls (11) for scoring, burrs, or deformation. Replace as required. 3 Inspect 54 pink or red, medium bearing balls (12) for scoring, burrs, or deformation. Replace as required. 4 Inspect five small bearing balls (13) for scoring, burrs, or deformation. Replace as required. 5 Inspect cover (5). Replace if cracked or distorted. 6 Inspect upper ring (8) and lower ring (10). Replace ring assembly (19) if cracked or distorted. 7 Inspect threaded holes of cover (5) and lower ring (10). Repair threads if damaged. 8 Inspect window (4). Replace if scratched, cracked, difficult to see through, or blemishes extend more than two inches from the window edge. 9 Inspect headless straight pins (18) and replace if bent, cracked, or otherwise damaged. 13-3