VALVE GP-BRAKE CONTROL 3909225 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-0520 Driver Group 1
B 1U-9003 Puller 1
C 1U-7591 Pry Bar 1 Start By:
Remove the brake caliper. Refer to Disassembly and Assembly, "Hydraulic Caliper Service Brake - Remove".
Illustration 1 g00482694
Loosen bolts (1) that hold pins (2) in position in the hydraulic caliper service brake.
Remove pins (2). Remove brake lining assemblies (3) from the hydraulic caliper service brake.
Illustration 2 g00482695
Remove bolts (4). Remove cover (5) from the hydraulic caliper service brake.
Illustration 3 g00482697
Illustration 4 g00482698
Position the hydraulic caliper service brake on a flat surface. Install Tooling (A) and pin (2). Pry up on pin (2). Remove plug (6), seal (7), and piston (8) from the hydraulic caliper service brake.
Repeat this procedure on the remaining two plugs and pistons.
Illustration 5 g00482699
Remove boots (9) from the hydraulic caliper service brake.
Illustration 6 g00482741
Cut boots (10) around the bases of the remaining three pistons (11) with a knife.
Illustration 7 g00482742
Install Tooling (B) on piston (11). Position Tooling (C) and a socket in order to pry on Tooling (B). Pry piston (11) out of the hydraulic caliper service brake.
Repeat this procedure for the remaining pistons.
Illustration 8 g00482743
Remove seals (12) and rings (13) from the hydraulic caliper service brake.