Caterpillar — Sprocket wheel removal - 8T-5243 Adapter Group installation
Maintenance · 215 Excavator sprocket wheel flange
From a Caterpillar manual covering: 3304, 561C, 623E, 623H, 725, 735, 740, 740B Ejector, 773, 793, 977H, CX31…. Check it applies to your exact model before use.
Applies to: Caterpillar 3304, Caterpillar 725, Caterpillar 735, Caterpillar 740, Caterpillar 773, Caterpillar 793
Procedure
- Install adapter groups evenly spaced in the holes in the sprocket flange; install the hooked adapter (1) first, then the plate (2).
- Fasten plate to adapter with two bolts (3) and washers (4); plate retains adapter in sprocket wheel.
- Before installing remainder of tooling, loosen bolt (5) to leave about 6.35 mm (0.25 in) gap between retainer (6) and sprocket wheel.
- Install the hydraulic cylinder and the remainder of the tooling in the conventional manner.
Tools required
- 8T-5243 Adapter Group Amazon
- 7B-2499 Ring Amazon
- 6H-4158 Pin Amazon
- 5F-9306 Arm Amazon
- 8S-9975 Ram Adapter Amazon
- 9S-8900 Cylinder Group Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- {'item': 'gap between retainer and sprocket wheel', 'value': '6.35', 'unit': 'mm'}
Full service-parts list: Caterpillar 3304 →, Caterpillar 725 →, Caterpillar 740 →
Source: Caterpillar manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.