TM-9-2320-273-34

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1980

TM-9-2320-273-34 - Page 566 of 801

TM9-2320-27334

(2)

Check the crankshaft support bearing for scoring and wear (fig. 14-17). If I D exceeds

1.877 in. (47.68 mm), replace the support and bearing as an assembly.

Figure 14-17. Check Support Bearing for Wear.

(3) Check the connecting rod bearings for scoring or wear (fig. 14-18). If 1 D exceeds 1.9395

in. (49.263 mm) at the crankshaft end or 0.689 in. (17.50 mm) at the piston pin end, the connecting rod

must be scrapped.

Figure 74-18. Check Connecting Rod Bearing.

(4) Check the connecting rod for bend and twist. Bend must not exceed 0.002 in. (0.05mm)

or twist 0.004 in. (0.10 mm).

14-19