307B Excavator Machine Systems Caterpillar

Swing Drive - Disassemble

Usage:

307B 5CW

Disassembly Procedure

Start By:

Remove the swing drive. Refer to Disassembly and Assembly, "Swing Drive - Remove" in this manual.

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NOTICE

Failure to properly assemble parts or failure to follow established procedures can lead to damage of the parts and assembly. To avoid damage to parts, always identify and mark the parts so that they can be installed in the same location. Ensure that gear surfaces align. Never force parts during assembly.

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Illustration 1	g00534318

Be sure that the swing drive is thoroughly clean prior to disassembly.
Position the swing drive on wood blocks, as shown. The weight of the swing drive is 52 kg (115 lb).
Make an alignment mark on the ring gear and on the swing drive housing for assembly purposes.
Remove sun gear (1) from the carrier assembly. Remove carrier assembly (2) from the ring gear.
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Illustration 2 g00534319
Remove ring gear (3) from the swing drive housing.
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Illustration 3 g00534320
Remove gear (4) from the carrier assembly. Remove carrier assembly (5) from the end of the pinion shaft.
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Illustration 4 g00534321
Use a hammer and a punch to remove split spacer (6).
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Illustration 5 g00534322
Put the swing drive housing and the pinion shaft in a press, as shown. The weight of the unit is 36 kg (80 lb).
Press the pinion shaft (7) out of the swing drive housing.
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Illustration 6 g00534323
Remove swing drive housing (9) over the pinion shaft. The weight of the swing drive housing with the bearings and seal is 20 kg (45 lb).
If necessary, remove two dowel pins (8) from the swing drive housing.
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Illustration 7 g00534324
Remove bearing cone (10) from the swing drive housing. The bearing is a slip fit.
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Illustration 8 g00534325
Remove bearing cup (12) from the swing drive housing.
Remove lip-type seal (11) from the swing drive housing.
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Illustration 9 g00534326
Turn over the swing drive housing. Remove O-ring seal (13) from the swing drive housing.
Remove bearing cup (14) from the swing drive housing.
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Illustration 10 g00534327
Put the pinion shaft in a press, as shown. Press pinion shaft (7) out of bearing cone (15) and cage (16).