Subaru Forester Brakes 1999 2000 (24) PDF

5. Master Cylinder
A: REMOVAL
1) Thoroughly drain brake fluid from reservoir
tank.
2) Disconnect fluid level indicator harness connec-
tor.
3) Remove brake pipes from master cylinder.
4) Remove master cylinder mounting nuts, and
take out master cylinder from brake booster.
CAUTION:
Be extremely careful not to spill brake fluid.
Brake fluid spilt on the vehicle body will harm
the painted surface; wipe it off quickly if spilt.
B: DISASSEMBLY
1. PRECAUTIONS FOR DISASSEMBLING
1) Remove mud and dirt from the surface of brake
master cylinder.
2) Prepare tools necessary for disassembly
operation, and arrange them neatly on work bench.
3) Clean work bench.
2. DISASSEMBLING PROCEDURE
1) Remove reserve tank.
2) Remove cylinder pin.
S4M0123B
(1) Cylinder pin
3) Pry up the pawl and remove the piston retainer.
NOTE:
Piston may jump out from master cylinder.
S4M0124
4) Extract primary piston assembly and secondary
piston assembly.
CAUTION:
Do not disassemble the piston assembly;
otherwise, the spring set value may be
changed.
Use brake fluid or methanol to wash inside
wall of cylinder, pistons and piston cups. Be
careful not to damage parts when washing. If
methanol is used for washing, do not dip rub-
ber parts, such as piston cups, in it for more
than 30 seconds; otherwise, they may become
swelled.
C: INSPECTION
If any damage, deformation, wear, swelling, rust,
and other faults are found on the primary piston
assembly, secondary piston assembly, supply
valve stopper, or gasket, replace the faulty part.
CAUTION:
The primary and secondary pistons must be
replaced as complete assemblies.
The service limit of the 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.
32
4-4 [W5A0] SERVICE PROCEDURE
5. Master Cylinder

Subaru Forester Brakes 1999 2000 (24) Summary of Content

5. Master CylinderA: REMOVAL1) Thoroughly drain brake fluid from reservoirtank.2) Disconnect fluid level indicator harness connec-tor.3) Remove brake pipes from master cylinder.4) Remove master cylinder mounting nuts, andtake out master cylinder from brake booster.CAUTION:Be extremely careful not to spill brake fluid.Brake fluid spilt on the vehicle body will harmthe painted surface; wipe it off quickly if spilt.B: DISASSEMBLY1. PRECAUTIONS FOR DISASSEMBLING1) Remove mud and dirt from the surface of brakemaster cylinder.2) Prepare tools necessary for disassemblyoperation, and arrange them neatly on work bench.3) Clean work bench.2. DISASSEMBLING PROCEDURE1) Remove reserve tank.2) Remove cylinder pin.S4M0123B(1) Cylinder pin3) Pry up the pawl and remove the piston retainer.NOTE:Piston may jump out from master cylinder.S4M01244) Extract primary piston assembly and secondarypiston assembly.CAUTION: Do not disassemble the piston assembly;otherwise, the spring set value may bechanged. Use brake fluid or methanol to wash insidewall of cylinder, pistons and piston cups. Becareful not to damage parts when washing. Ifmethanol is used for washing, do not dip rub-ber parts, such as piston cups, in it for morethan 30 seconds; otherwise, they may becomeswelled.C: INSPECTIONIf any damage, deformation, wear, swelling, rust,and other faults are found on the primary pistonassembly, secondary piston assembly, supplyvalve stopper, or gasket, replace the faulty part.CAUTION: The primary and secondary pistons must bereplaced as complete assemblies. The service limit of the clearance betweeneach piston and the master cylinder inner dia.is 0.11 mm (0.0043 in). When handling parts, be extremely carefulnot to damage or scratch the parts, or let anyforeign matter get on them.324-4 [W5A0] SERVICE PROCEDURE5. Master Cylinder