Brake Control System and Diagnosis: 4A-15
5) Apply small amount of rubber grease (included in
spare parts) to mating surface of “a” (piston cup (3)
and piston guide (1)) and “b” piston guide (1) and O-
ring (2)).
6) Apply small amount of silicon grease (included in
spare parts) to mating surfaces of “c” (rod seal (4)
and primary piston (5)).
7) Install piston guide (1) and circlip (6).
Master Cylinder Assembly Inspection
S7RS0B4106014
Inspect all disassembled parts for wear or damage, and
replace parts if necessary.
NOTE
• Wash disassembled parts with brake fluid.
• Do not reuse inner parts and rubber parts.
Inspect master cylinder bore for scoring or corrosion. It is
best to replace corroded cylinder. Corrosion can be
identified as pits or excessive roughness.
NOTE
Polishing bore of master cylinder with cast
aluminium body with anything abrasive is
prohibited, as damage to cylinder bore may
occur.
Rinse cylinder in clean brake fluid. Shake excess rinsing
fluid from cylinder. Do not use a cloth to dry cylinder, as
lint from cloth cannot be kept from cylinder bore
surfaces.
Brake Booster Components
S7RS0B4106015
CAUTION
!
Never disassemble brake booster. Disassembly will spoil its original function. If faulty condition is
found, replace it with new one.
I4RS0A410024-01
9
10
1
7
4
8
5
6
3
(b)
(a)
(b)
2
I6RS0C410010-01
1. Booster assembly 5. Clip 9. Brake master cylinder : Do not reuse.
2. Gasket 6. Booster nut 10. Master cylinder fixing nut
3. Brake vacuum hose 7. Clevis pin lock nut : Tighten 13 N⋅m (1.3 kgf-m, 9.5 lb-ft)
by the specified procedure.
4. Clevis pin 8. Push rod clevis : 15 N⋅m (1.5 kgf-m, 11.0 lb-ft)