TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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(9) TM 9-2815-202-34 WARNING Restrain cam follower body and roller during removal from cam follower holding fixture (90). Follower pin is seated on top of spring-loaded plunger in holding fixture and a sudden release could eject cam follower and cause injury to personnel. CAUTION Remove any burrs on cam follower surfaces at pin holes prior to installing roller and pin to prevent scoring of roller bushing and pin. 2. 3. 4. 5. 6. 7. Drive pin (89) from roller (88) with a drift. Position follower body in groove of holding assembly with small plunger extending through roller pin hole in one leg of follower body. Coat pin and roller with engine oil. Position roller (88) in cam follower body (91). Plunger will extend into roller bushing and assure accurate alinement of bushing with roller pin holes in follower body. Start pin (89) squarely into follower body (91 ) and drive into centered in legs of follower. Check side clearance between roller (88) and follower body be between 0.011 and 0.023 inch. position until pin is (91). Clearance must Rocker arms and shafts Inspect rocker arm shafts and bushings for wear. Maximum shaft to bushing clearance is 0.004 inch. 4-199