TM10-3930-660-20 18-5. PISTION  PUMP   - TEST/REPLACE (Cont’d) INSTALLATION Remove caps and plugs as hoses are installed. Wipe all sealing surfaces on valve and hoses clean and dry. Apply film of clean hydraulic oil to all seals as they are installed. 1. IF REMOVED, INSTALL FITTINGS ON PUMP (5). 2. 3. a, b. c. d. If necessary, install tee (3) and reducer  (4). Install two reducers (8) and tee (9). Install  adapter  (11). Install reducer (13), nut (14), tee (15), and reducer (16). INSTALL PISTON PUMP (5). a. Install new O-ring (21). b. Position pump (5) on the transmission and secure with two bolts (18), two new lockwashers (19), and two flat washers (20). CONNECT HYDRAULIC HOSES AS TAGGED a. Connect hose (17) to tee (15). b. Connect hose (12) to reducer (13). c. Connect hose (10) to adapter (11). d. Connect hoses (6), and (7) to two  reducers  (8). e. Connect hose (l), and hose (2), to tee  (3). 18-14