d. Inspection and Repair.
(1) Inspect the pinion gear for damaged, broken, or stripped teeth. Inspect the teeth surfaces for cracks, pitting,
etching, and chipping metal. Check the pinion gear keyway for distortion, cracks, and broken edges.
Replace the pinion gear if it is broken, damaged, cracked, or if the teeth are missing or worn.
(2) Inspect all bearings for wear, scoring, corrosion, and damage. Check the rollers for free rotation. Inspect
the bearing cones for cracks and flaws. Replace all defective bearings.
(3) Replace all oil seals and gaskets.
(4) Inspect the bearing tube for breaks, cracks, twisting, dents, and warpage. Check the mounting and
machined surfaces for pitting and etching. Dress down pitted or scratched surfaces with a fine-cut file.
Check the inside walls and bearing seats for cracks, scoring, and flaws. Replace the bearing tube if it is
broken, twisted, or dented.
(5) Inspect the key for broken, damaged, or pitted edges. Replace the key if the edges are worn, broken off, or
cracked.
(6) Inspect all mounting screws for damaged, stripped, or corroded threads. Replace all defective screws.
e. Reassembly.
(1) Install the oil seal (10) and press the bearing cone (11) into the bearing tube (9). Install the bearing rollers
(12) on the countershaft (18).
(2) Install the spacer (8) and the inner oil seal (7) so that the sealing lip is facing away from the bearing.
(3) Install the bearing (6) and the outer oil seal (5) so that the sealing lip is facing toward the bearing.
f. Installation.
(1) Coat a new gasket (14) with fast-drying gasket sealer and install it on the bearing tube (9). See that the
mounting holes on the bearing tube and gasket are properly alined and that the gasket adheres firmly to the
machined mounting surface of the bearing tube.
(2) Install the bearing tube (9) on the countershaft (13) and tighten the mounting screws (17) and lockwashers
(16). Remove the blocks securing the countershaft gears inside the transmission case.
(8) Install the key (15) and press the pinion gear (4) on the countershaft (13).
(4) Install the retainer washer (8) and slotted nut (2).
(5) Tighten the slotted nut (2) and secure it with the cotter pin (1).
(6) Install the forward and reverse clutch shaft (par. 204f).
304
