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FRONT AXLE AND FINAL DRIVE INSPECTION 4. Carefully examine the sun and planet gears for wear on the teeth and the running surfaces 1. Examine the pinion housing for damage. in contact with the carrier. Check also for Check the machined surfaces and remove any signs of over heating. burrs. Check the carrier bearing nut threads in 5. Inspect all the bearings for wear, pitting, flats the housing and caps and adjusting nuts for on the rollers and overheating. If the bearings damage and repair as necessary. Make sure are serviceable they can be refitted but if new that the cast-in lubrication passages (arrowed) ones are available they must be renewed including the passage to the tail bearing, are together with the tracks. completely clear of any obstruction. 2. Examine the machined surfaces of the differential carrier for damage, pitting, scores lubrication holes (arrowed) are clear. Any obstruction here could cause future bearing failure. 6. Examine the crown wheel and pinion for tooth contact on the crown wheel driving side with the examples illustrated below. These examples, is driven clockwise. Tooth contact for the front axle crown wheel, where but on the opposite side of the tooth. The first example " A " shows the marks that should be made by a correctly meshed crown wheel and The remaining examples show incorrect tooth contact. 3. Check the cross shaft for scores and pitting. Insert the shaft in the carrier to check for excessive wear. |