brake booster SUZUKI SWIFT 2006 2.G Service User Guide

Downloaded from www.Manualslib.com manuals search engine 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 s ilicon 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 InspectionS7RS0B4106014
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 ComponentsS7RS0B4106015
CAUTION!
Never disassemble brake booster. Disassembly will spoi l its original function. If faulty condition is
found, replace it with new one.

I4RS0A410024-01
9
10 17
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)

Downloaded from www.Manualslib.com manuals search engine 4A-16 Brake Control System and Diagnosis:
Booster Operation InspectionS7RS0B4106016
There are two ways to perform this inspection, with and
without a tester. Ordinarily, it is possible to roughly
determine its condition without using a tester.
NOTE
For this check, make su re that no air is in
hydraulic line.

Check Air Tightness
1) Start engine.
2) Stop engine after running for 1 to 2 minutes.
3) Depress brake pedal several times with the same load as in ordinary braking and observe pedal travel.
If pedal goes down deep the first time but its travel
decreases as it is depressed the second and more
times, air tightness is obtained.
4) If pedal travel doesn’t change, air tightness isn’t obtained.
NOTE
If defective, inspect vacuum lines and sealing
parts, and replace any faulty part. When this
has been done, repeat the entire test.

Check Operation
1) With engine stopped, depress brake pedal several times with the same load and make sure that pedal
travel doesn’t change.
2) Start engine while depressing brake pedal. If pedal travel increases a little, operation is satisfactory. But
no change in pedal travel indicates malfunction.
Check Air Tightness Under Load 1) With engine running, depress brake pedal. Then stop engine while holding brake pedal depressed.
1. 1st 2. 2nd3. 3rd
1. 1st, 2nd, 3rd
I2RH01410005-01
I2RH01410006-01
H: Hold
I2RH01410007-01
I2RH01410008-01
I2RH01410009-01

Downloaded from www.Manualslib.com manuals search engine Brake Control System and Diagnosis: 4A-17
2) Hold brake pedal depressed for 30 seconds. If pedal height does not change, condition is good. But it isn’t
if pedal rises.
Brake Booster Removal and InstallationS7RS0B4106017
Removal
1) Recover refrigerant from A/C system by using recovery and recycling equipment referring to
“Operation Procedure for Refrigerant Charge in
Section 7B” or “Operation Procedure for Refrigerant
Charge in Section 7B”.
2) Remove master cylinder assembly from booster referring to “Master Cylin der Assembly Removal and
Installation”.
3) Remove cowl top cover and cowl top panel referring to “Cowl Top Components in Section 9K”.
4) Remove suction hose referring to “Major Components of A/C System in Section 7B” or “Major
Components of A/C System in Section 7B”.
5) Disconnect vacuum hose from booster referring to “Brake Booster Components”.
6) Remove push rod clevis pin and booster mounting nuts and then remove booster. Installation
1) Loosen brake pedal bracket mounting bolt.
2) Install booster (2) to dash panel. Then connect push rod clevis (3) to pedal arm with clevis pin (1) and clip
(4).
3) Tighten booster mounting nuts (a) to specified torque.
Tightening torque
Booster mounting nut (a): 13 N·m (1.3 kgf-m, 9.5
lb-ft)
4) Tighten brake pedal bracket mounting bolt to specified torque.
Tightening torque
Brake pedal bracket mounting bolt (b): 13 N·m (
1.3 kgf-m, 9.5 lb-ft)
5) Install suction hose referring to “Major Components of A/C System in Section 7B” or “Major Components
of A/C System in Section 7B”.
6) Install cowl top panel and cowl top cover referring to
“Cowl Top Components in Section 9K”.
7) Install master cylinder assembly to booster referring to “Master Cylinder Assembly Removal and
Installation”.
8) Fill reservoir with specified fluid.
9) Bleed air from brake system.
H: Hold
T: 30 seconds
I2RH01410010-01
1
2 4
3
I6RS0C410006-02
(b)
(a)
I4RS0B410021-02

Downloaded from www.Manualslib.com manuals search engine 4A-18 Brake Control System and Diagnosis:
10) Check pedal height and play referring to “Brake Pedal Free Height Inspection” and “Brake Pedal
Play Inspection”.
11) Check each installed part for fluid leakage and perform brake test.
12) Evacuate and charge refrigerant by referring to “Evacuating of A/C Syst em” and “Procedure of
Charging” under “Operation Procedure for
Refrigerant Charge in Section 7B” or “Operation
Procedure for Refrigerant Charge in Section 7B”.
Brake Booster Inspection and AdjustmentS7RS0B4106018
Installation Position of Push Rod
If push rod clevis (1) has b een removed, adjust distance
between booster installation surface (without including
packing) and the center of clevis pin hole to standard
value “a” and tighten nut (a) to specified torque. Distance “a” between center of booster clevis pin
hole and booster surface
Standard:
114.5 – 115.5 mm (4.51 – 4.54 in.)
Tightening torque
Clevis lock nut (a): 15 N·m (1.5 kgf-m, 11.0 lb-ft)
Specifications
Tightening Torque SpecificationsS7RS0B4107001
NOTE
The specified tightening torque is also described in the following.
“Front Brake Hose / Pipe Construction”
“Rear Brake Hose / Pipe Construction”
“Brake Pedal Components”
“Master Cylinder Components”
“Brake Booster Components”

Reference:
For the tightening torque of fastener not specified in this
section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Recommended Service MaterialS7RS0B4108001
NOTE
Required service material is also described in the following.
“Master Cylinder Components”

I4RS0A410022-01
Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Master cylinder fixing nut 15 1.5 11.0 )
Brake pipe flare nut for M10 16 1.6 11.5 )
Brake pipe flare nut for M12 19 1.9 14.0 )
Reservoir bolt 2.5 0.25 2.0 )
Booster mounting nut 13 1.3 9.5 )
Brake pedal bracket mounting bolt 13 1.3 9.5 )
Clevis lock nut 15 1.5 11.0 )

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Clutch Fluid Pipe Removal and InstallationS7RS0B5306007
Removal
CAUTION!
Do not allow fluid to get on painted surface. It
may cause painted surface damage.

1) Remove dust and dirt from each joint of pipe to be disconnected and clean around brake master
cylinder reservoir cap.
2) Take out fluid with syringe or such from brake master cylinder reservoir.
3) Pull clamp (1) of clutch master cylinder (3) and push clamp (5) of clutch operating cylinder (4) and then
disconnect clutch fluid pipe (2).
Installation
Reverse removal procedure for installation noting the
following.
CAUTION!
• Do not allow fluid to get on painted surface.
• Do not allow pipe to contact hard against vehicle body or other parts.

• Install each clamp securely.
• After installation, check clutch pedal free travel and bleed air from system referring to “Clutch Pedal
Inspection” and “Air Blee ding of Clutch System”.
• Check fluid leakage.
• Add fluid to MAX level of reservoir.
Clutch Fluid Pipe InspectionS7RS0B5306008
Check pipe (1) for dent, kink, crack, dirt and dust.
Replace if check result is not satisfactory.
Clutch Master Cylinder Removal and
Installation
S7RS0B5306009
Removal 1) Clean around brake master cylinder reservoir cap and take out fluid with syringe or such from brake
master cylinder reservoir.
2) Disconnect clutch fluid pipe from clutch master cylinder (1) referring to “C lutch Fluid Pipe Removal
and Installation”.
3) Disconnect clutch reservoir hose (2).
4) Remove push rod from clutch pedal.
5) Turn clutch master cylinder (1) clockwise as shown in figure, and then remove it.
Installation
Reverse removal procedure for installation noting the
following.
• Apply grease to push rod tip.
“A”: Grease 99000–25100 (SUZUKI Silicone
Grease)
31
2
5
4
I4RS0B530003-01
3. Brake booster
1
I6RS0C530004-01
1
2
3
I4RS0B530005-01
“A”
I4RS0B530006-01