ENGINE AR 4N0303 - Caterpillar

Illustration 10 g00903073
Make a stake mark on each side of the spring pin hole in the carrier assembly. This will prevent the spring pin from falling out of the spring pin hole. Each stake mark should be approximately 1.5 mm (0.06 inch) from the outside diameter of the spring pin hole.
Repeat Steps 13.a through 13.d in order to install the remaining three planetary gears (18) in the carrier assembly.
Illustration 11 g00518552
Install carrier assembly (13) in ring gear (21). Slide a piece of steel bar stock between the planetary gears in carrier assembly (13), as shown. Make sure that the steel bar stock is centered in the carrier assembly. Fasten Tooling (B) and a suitable lifting device to the steel bar stock, as shown. Carefully, lower the carrier assembly into position in the ring gear. It may be necessary to move the carrier assembly back and forth during installation in order to ensure that all gears align and all gears mesh properly.
Illustration 12 g00518551
Install retaining ring (15) that secures carrier assembly (13) in position.
Install spacer (14) on the end of the pinion shaft.
Use the following procedure to assemble carrier assembly (3) .
Illustration 13 g00518549
Install retaining ring (12) in gear (11) .
Illustration 14 g00518543
Place gear (11) in the carrier assembly. Install retaining ring (10) with a screwdriver.
Illustration 15 g00518400
Illustration 16 g00518398
Apply clean SAE 30 oil on bearing (8). Install the bearing in planetary gear (7) .
Install a thrust washer (9) on each side of the planetary gear. Install the planetary gear and thrust washers in the carrier assembly. Install planetary shaft (5) in the carrier assembly and through planetary gear (7). Make sure that the spring pin hole in planetary shaft (5) is aligned with the spring pin hole in the carrier assembly.
Install spring pin (6) in the carrier assembly and into the planetary shaft. Install the spring pin until the spring pin is even with the outside surface of the carrier assembly. Align the split in spring pin (6) to the top or to the bottom.
Illustration 17 g00903073
Make a stake mark on each side of the spring pin hole in the carrier assembly. This will prevent the spring pin from falling out of the spring pin hole. Each stake mark should be approximately 1.5 mm (0.06 inch) from the outside diameter of the spring pin hole.
Repeat Steps 17.a through 17.f in order to install the remaining three planetary gears in the carrier.
Install sun gear (4) in carrier assembly (3) .
Illustration 18 g00518397
Use two people in order to install carrier assembly (3) in the ring gear of the swing drive.
Illustration 19 g00518372
Apply Tooling (G) on the flange surfaces of ring gear (21) .
Fasten Tooling (A) and a suitable lifting device to cover (2), as shown. Place the cover in the cover's original position on ring gear (21) .
Illustration 20 g00518369
Apply Tooling (F) on the threads of 16 bolts (1). Install bolts (1) and the washers that secure cover (2). Tighten bolts (1) to a torque of 270 40 N m (200 30 lb ft).End By: Install the swing drive.