TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
Page 312 of 552
TM 9-2350-311-34-2 6-11 EQUILIBRATED ELEVATION MECHANISM ASSEMBLY - CONTINUED b. Disassembly - Continued 17 18 19 20 21 22 23 24 Extensive effort is required to loosen piston adapter which has been torqued to 450 Ib-ft (610 N·m). Avoid side loads to piston adapter that would damage walls of cannon equilibrator. NOTE Perform step 17 for unmodified elevation mechanism assembly or step 18 for modified eleva- tion mechanism assembly. Restrain cannon equilibrator and end rod plain bearing while loosening piston adapter. Using spanner, loosen piston adapter (54) at rear of cannon equilibrator (37) by turning counterclockwise. Apply tape to spanner attachment. Using spanner attachment, loosen piston adapter (54) at rear of cannon equilibrator (37) by turning counterclockwise. Restrain end rod plain bearing (55) and loosen hex nut (56). Remove locking setscrew (57). Remove centering setscrew (58) underneath locking setscrew (57). Remove end rod plain bearing (55). If required for replacement, remove bearing (59) from eye (60). Remove hex nut (56). 6-50