TM 9-2320-361-20 13-11. REAR WINCH DRIVECHAIN MAINTENANCE (M756A2) This task covers: a. Removal c. Adjustment b. Installation INITIAL SETUP: APPLICABLE MODELS M756A2 REFERENCES (TM) TM 9-2320-361-10 MATERIALS/PARTS TM 9-2320-361-20P Two cotter pins EQUIPMENT CONDITION Eighteen locknuts • Parking brake set (TM 9-2320-361-10). PERSONNEL REQUIRED • Spare tire removed (TM 9-2320-361-10). Two NOTE Rotate power takeoff sprocket to gain access to master link. Remove two cotter pins (2), master link keeper (3), master link (5), and drivechain (1) from rear winch sprocket (7) and power takeoff sprocket (6). 1. Install drivechain (1) around rear winch sprocket (7) and power takeoff sprocket (6). If drivechain ends will not meet, perform adjustment. 2. Install master link (5) and master link keeper (3) on drivechain (1) with two new cotter pins (2). 3. Measure drivechain (1) at midpoint (4) of drivechain (1) for 0.5 in. (1.3 cm) freeplay. If freeplay is not correct, adjust drivechain (l). 1. 2. 3. 4. 5. 6. 7. Remove four screws (9), washers (10), locknuts (15), and step (8) from step bracket (16) and toolbox (17). Discard locknuts (15). Remove six locknuts (14) and washers (13) from screws (12). Discard locknuts (14). Remove eight locknuts (20) and washers (19) from screws (18). Discard locknuts (20). NOTE Assistant will help with step 4. Push cab protector (11) to obtain 0.5 in. (1.3 cm) freeplay at midpoint (4) of drivechain (1). Install eight washers (19) and new locknuts (20) on screws (18). Install six washers (13) and new locknuts (14) on screws (12). Install step (8), four washers (10), screws (9), and new locknuts (15) to step bracket (16) and toolbox (17). 13-18