Subaru Impreza 2002 Service Manual page 3007

BRAKE
D: ASSEMBLY
1. PRECAUTIONS FOR ASSEMBLING
1) When assembling, be sure to use the recom-
mended brake fluid.
2) Ensure that the inside wall of cylinder, pistons,
and piston cups are free from dirt when assem-
bling.
3) Be extremely careful not to damage, scratch, or
dent the cylinder inside wall, pistons, and piston
cups.
4) Do not drop the parts. Never attempt to use any
part that has been dropped accidentally.
2. ASSEMBLING PROCEDURE
1) Assembling the piston assembly:
Apply recommended brake fluid to the inside wall of
cylinder, and to outer surface of the piston assem-
bly, and install the piston assemblies carefully into
cylinder.
2) Assembling the cylinder pin:
Press the pawl and install the piston retainer into
master cylinder.
3) Install the seal to reservoir tank.
(1) Seal
4) Install the pin with drift pins which secure reser-
voir tank to master cylinder.
MASTER CYLINDER
E: INSPECTION
If any damage, deformation, wear, swelling, rust,
and other faults are found on the primary piston as-
sembly, secondary piston assembly, supply the
valve stopper, or gasket, replace the faulty part.
CAUTION:
• The primary and secondary pistons must be
replaced as complete assemblies.
• The service limit of clearance between each
piston and the master cylinder inner dia. is 0.11
mm (0.0043 in).
• When handling parts, be extremely careful
not to damage or scratch the parts, or let any
foreign matter get on them.
S4M0124
B4M1450C
BR-48