TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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5-88 TM 9-2350-311-34-2 5-12 VARIABLE RECOIL ASSEMBLY - CONTINUED c. Inspection and Repair - Continued 13 Inspect piston rod (65). Replace if cracked, burred, or distorted. Measure outer diameter of orifice area. Re- place if less than 1.992 inches (5.06 cm). 14 Inspect machine bushing (24). Replace if cracked, if spanner shoulders are rounded, or if threads are muti- lated. 15 Inspect two sector gears (8). Replace if gear teeth are cracked or broken or if splines are distorted. 16 Inspect machine bushing (38). Replace if cracked, if spanner slot shoulders are rounded, or if threads are mutilated. 17 Inspect plug (75) for mutilated threads and leakage around preformed packing (76). If leaks exist, replace preformed packing. If condition continues, replace actuating piston assembly (30). 18 Inspect for broken spring pins (77) and cracked, burred, or distorted piston tube (78). If any of the items are unserviceable, replace actuating piston assembly (30).