HEXA

GEAR BOX 34 17.Take out the reverse gear assembly. 18. Remove needle roller cage. INSPECTION Following points should be checked before starting to assemble the main shaft:  Gear teeth for breakage, wear, pitting, scoring and overheating marks.  Bearing seats for rotation marks.  Splines for breakage, burrs and wear on sides.  Main shaft oil seal lip contact area for wear.  Main shaft diameter and collar for scoring, rub- bing and overheating marks. SYNCHRO CONE INSPECTION  Inspect cone surface for wear on 1 st , 2 nd , 3 rd , 4 th & 5 th main shaft gear.  Place the synchro cone on matching gear cone and rotate until it stops (approx. 10 to 20 de- grees) then measure the clearance between ring and gear.  Check for synchro cone gaps. It should be 1 + 0.3 mm. SYNCHRO SLEEVE AND HUB INSPECTION  Inspect the gear teeth on all synchro hubs and sleeves for rounded off corners, indicating wear.  Install each hub in its mating sleeve and check for free movement.