SERVICE BRAKE 3Y9734 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-0520 Bearing and Seal Driver 1
Illustration 1 g00858000
Lower the temperature of the sleeve bearing. Use Tooling (A) in order to install sleeve bearing (17). Install the sleeve bearing until the sleeve bearing is flush with the bore of the sprocket.
Install grease fitting (16) and the cap.
Repeat Steps 1 and 2 in order to install the sleeve bearing and the grease fitting in the remaining sprocket.
Illustration 2 g00857998
Install pin (15) in the sprocket.
Illustration 3 g00857997
Use a suitable lifting device to install sprocket (14) and pin (15). The weight of sprocket (14) and pin (15) is approximately 40 kg (88 lb).
Illustration 4 g00857996
Use a suitable lifting device to install sprocket (13). The weight of sprocket (13) is approximately 26 kg (57 lb).
Illustration 5 g00857995
Position retainer plate (12) and install bolts (11).
Illustration 6 g00857992
Use a suitable lifting device to position counterweight cylinder (6). The weight of counterweight cylinder (6) is approximately 250 kg (550 lb).
Illustration 7 g00857994
Install pin (10) and bolt (9).
Illustration 8 g00857993
Position band assembly (8) and install bolts (7). The weight of band assembly (8) is approximately 19 kg (42 lb).
Illustration 9 g00857991
Position guide assembly (4) and the band assembly and install bolts (5).
Illustration 10 g00857989
Attach a lifting sling and a hoist to the middle of chain assembly (2). Position the chain assembly on the machine, as shown. The weight of the chain assembly is approximately 57 kg (125 lb).
Illustration 11 g00857990
Install bolt (3). Lower the chain assembly onto the sprocket. Remove the suitable lifting device.
Repeat Steps 12 and 13 in order to install the remaining chain assembly.
Illustration 12 g00857988
Connect hose assembly (1). End By:
Install the check valve for the counterweight circuit. Refer to Disassembly and Assembly, "Check Valve (Counterweight Circuit) - Remove".