TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks
Page 276 of 1144
TM 9-2320-361-24-2 0264 00 0264 00-2 DISCHARGE VALVE CONTROL LEVERS MAINTENANCE (M49A2C) (Contd) DISASSEMBLY CAUTION Do not strike levers or brackets during lever shaft removal. Striking levers or brackets may result in damage to components. NOTE Prior to removal, tag all components for assembly. 1. Remove springs (31) and (22) from lever arms (14) and (21) and brackets (30) and (23). 2. Remove three screws (6) and lockwashers (7) from brackets (5), (30), and (23). Discard lockwashers (7). 3. Remove lever shaft (8) and levers (4) and (28) from between brackets (5), (30), and (23). 4. Remove cotter pins (15) and (16) and fusible link (17) from lever arm (14) and bracket (30). Discard cotter pins (15) and (16). 5. Remove setscrews (12) and (20) in cams (13) and (19). Remove shaft (9) from bushing (24), lever arm (21), cam (20), bushing (29), lever arm (14), cam (13), and bushing (10). Remove cams (13) and (20). 6. Remove rollers (18) and (11) from bushings (10) and (29). 7. Remove lever arms (14) and (21) from bushings (29) and (24). 8. Remove cotter pin (27) from pin (25) and remove pin (25) and clevis (26) from lever arm (21). Discard cotter pin (27). 9. Remove three screws (2), lockwashers (3), and spacer bar (1) from brackets (5), (30), and (23). Discard lockwashers (3). CLEANING AND INSPECTION 1. Refer to WP 0021 00 for general cleaning instructions. 2. Refer to WP 0020 00 for general inspection instructions. 3. Inspect clevis (26) and pin (25) for cracks or pin hole damage. Replace clevis (26) and pin (25) if cracked or pin hole is damaged. 4. Inspect shaft (9) for twists, cracks, or breakage. Replace shaft, (9) if twisted, cracked, or broken. Table 1. M49A2C Discharge Valve Control Lever Wear Limits. ITEM NO ITEM/POINT OF MEASUREMENT WEAR LIMITS/TOLERANCE INCHES MILLIMETERS 21 Lever arm (inner diameter at shaft hole) 0.4.33–0.463 11.25–11.76 14 Lever arm (inner diameter at shaft hole) 0.430–0.454 10.92–11.53 4 and 28 Levers (inner diameter at shaft hole) 0.868–0.922 22.05–23.42 10, 24, and 29 Bushings end exposed (diameter) 0.430–0.438 10.92–11.13 8 Lever shaft (diameter) 0.860–0.885 21.84–22.48 11 and 18 Roller (outer diameter) 0.750 19.05 11 and 18 Roller (inner diameter) 0.440–0.444 11.18–11.28