TM 10-3930-653-14&P (9) Install packing on control valve, and put it on case cover. Fig. 4-346. (10) Tighten with fitting bolts. Fig. 4-347. (11) Install oil filter adapter. Fig. 4-348. REASSEMBLY OF HYDRAULIC CLUTCH (1)   Install piston seal ring for inner circumference on forward side clutch shaft. Fig. 4 - 349. (2)   Install seal ring on outer circumference of piston. Fig. 4-350. 4-176