PLATE 3716451 - Caterpillar

start by:a) remove sprocketsb) remove final drive oil pumps
The oil pump for final drive must be removed before removing the final drive case. The idler pinion can fall on the drive shaft for the oil pump and cause damage to it.
1. Remove bolts (2) that hold final drive case (1) to the bevel gear case. 2. Install four 5/8"-11NC guide bolts, 5 in. (12.7 cm) long, through the case into the bevel gear case. Install three 5/8"-11NC forcing screws (3) into the case. Make a separation of the final drive and bevel gear cases. Install two 5/8"-11NC forged eyebolts (4) in the final drive case. Fasten a hoist and tool (A) to the eyebolts. Remove the final drive case. Weight is 500 lb. (227 kg).
Keep the idler pinion in position in the bevel gear case when making a separation of the final drive and bevel gear cases. Use a wire to keep the idler pinion in position after the final drive case is removed.
3. Remove plug (7). Remove the dowel that keeps the outer pinion bearing (6) in position in the case with a 1/4"-20NC bolt. Remove the outer pinion bearing with tooling (B).4. Remove cap plug (8). Remove the dowel that keeps the outer bearing for the idler pinion (5) in position in the case. Remove bearing with tooling (B).Install Final Drive Cases
1. Lower the temperature for the outer bearings for the pinion (2) and idler pinion (3). Install the bearings in their bores in the final drive case. Put the holes in the bearings in alignment with the holes in the case. Install the dowels and cap plugs that hold the bearings in position in the case.2. Remove the old gasket material from the surfaces that seal the cases for the final drive and bevel gear. Put 7M7260 Liquid Gasket Material on the surfaces.3. Install four 5/8"-11NC guide pins, 5 in. (12.7 cm) long, in the bevel gear case.4. Fasten a hoist and tool (A) to the final drive case (1) and put it in position on the guide pins. Make sure that the shafts for the pinion and idler pinion engage in their bearings. 5. Install bolts (4) that hold the final drive and bevel gear cases together. Remove the four guide pins and install four bolts. Tighten the bolts to a torque of 200 20 lb.ft. (27.7 2.8 mkg).end by: a) install final drive oil pumpsb) install sprockets