FRAME AS 4T8869 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7576 Link Brackets 4
B 132-8223 Hydraulic Pump and Motor Gp (115 V 50/60 Hz Single Phase)(1) 1
1U-6221 Hydraulic Torque Wrench Gp 1
132-8143 Wrench Link (36-MM LOW CLEARANCE HEX) 1
(1) 132-8231 Hydraulic Pump and Motor Gp (220 V 50/60 Hz Single Phase) is also available.Start By:
Remove the undercarriage frame.
Remove all of the grease from the swing gear and bearing. Put the grease in a suitable container for storage or disposal.
Illustration 1 g00520664
Put an alignment mark on swing gear and bearing (1) and on the undercarriage frame assembly for assembly purposes. Attach Tooling (A) and a suitable lifting device to swing gear and bearing (1), as shown. Apply slight lifting tension to swing gear and bearing (1).
Illustration 2 g00520670
Use Tooling (B) in order to remove bolts (2) and the spacers that hold swing gear and bearing (1) to the undercarriage frame.
Remove swing gear and bearing (1). The weight of swing gear and bearing (1) is approximately 640 kg (1410 lb).
Illustration 3 g02128394Note: Inner dust seal (3) and outer dust seal (4) may have been installed dry in the swing gear and bearing or inner dust seal (3) and outer dust seal (4) may have been bonded to the swing gear and bearing.
Remove inner dust seal (3) and outer dust seal (4) from the swing gear and bearing.
Clean the seal grooves of the inner dust seal and the outer dust seal with a fine grit sandpaper. Use a cleaning solvent to clean the sealing grooves. Make sure that the seal grooves are thoroughly clean and dry prior to installing the new dust seals.