TM-9-2520-238-34

M113A1 FOV, M113A2 FOV, M548 AND M548A1

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL; RIGHT ANGLE DRIVE, COOLING FAN; GEARCASE, TRANSFER; DRIVE ASSEMBLY, FINAL; DIFFERENTIAL, STEERING CONTROL; BRAKE, SINGLE DISK; CYLINDER ASSEMBLY, HYDRAULIC BRAKE

TM-9-2520-238-34 - Page 261 of 319

TM 9-2520-238-34

REPAIR DIFFERENTIAL RIGHT ANGLE GEARBOX — Continued

0028 00

45. Lubricate two cap screws (1) with engine oil.

46. Install peeled shim (2) and input assembly (bearing housing (3) with attached parts) on gearbox housing (4). Secure with

two cap screws (1) spaced 180 degrees apart. Tighten screws to 14-16 lb-in (1.7 N•m) torque. Use torque wrench

(WP 0033 00, Item 39).

47. Install dial indicator gage (WP 0033 00, Item 12) and fabricated differential backlash tool on output assembly (adapter

plate (5) with attached parts). Install gage feeler rod into slot on tool arm.

48. Hold oil seal retainer (6) on input assembly and rotate plate (5) on output assembly and check gauge for backlash.

Backlash should read .006-.011 inch (.15-.28 mm).

49. If backlash is too high, remove laminate(s) from shim (2). Adjust shim until correct reading is obtained.

50. Remove two cap screws (1) and separate input assembly from gearbox housing (4).

0028 00-19