Subaru Legacy 2002 Service Manual page 2169

Brake
C: DISASSEMBLY
1) Remove the boot ring.
(1) Boot ring
2) Remove the piston boot.
3) Gradually supply compressed air via inlet of
caliper body to force piston out.
CAUTION:
¼ Place a wooden block as shown in Figure to
prevent damage to piston.
¼ Do not apply excessively high-pressure.
(1) Place a 30 mm (1.18 in) wide wooden block here.
REAR DISC BRAKE ASSEMBLY
S405172A06
S4M0120B
S4M0121
B4M1174C
BR-30
4) Remove piston seal from caliper body cylinder.
5) Remove lock pin sleeve and boot from caliper
body.
6) Remove guide pin boot.
S4M0122