Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1188

POWER-ASSISTED BRAKE SYSTEM

5C–19

6. Tighten the steering column fixing bolt (9) (dash

panel) to the specified torque.

Torque: 20 N·m (14 lb ft)

7. Tighten the steering column fixing nut (9) (Cross

Beam) to the specified torque.

Torque: 17 N·m (12 lb ft)

8. Apply grease to the entire circumference of the

Push rod pin (7).

9. Install push rod pin (7).

10. Install snap pin (4).

11. Connect the anti-theft control module connector.

Refer to Body and Accessories section.

12. Connect the stop light switch connector (3).

13. Install driver knee bolster (10) and lower cover (8).

14. Install the engine hood opening lever.

15. Connect the yellow 3 way SRS connector located

under the steering column.

16. Connect the battery “–” terminal cable.

Stoplight Switch

Parts Location

310RW008

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Removal

1. Disconnect connector (1)

2. Remove lock nut (3).

3. Remove switch (2).

Installation

1. Adjust the stop light switch to the specified

clearance (between switch housing and brake
pedal) by rotating the switch housing.

Clearance : 0-0.2 mm (0-0.08 in)

NOTE:  Do not attempt to force the push rod into
position during the stop light switch installation and
adjustment procedure.

310RY00005

2. Connect connector (1).

3. Install lock nut (3).

Legend

(1) Connector
(2) Switch
(3) Lock Nut

5C–20

POWER-ASSISTED BRAKE SYSTEM

Main Data and Specifications

General Specifications

Torque Specifications

310RY00007

Pedal free play

6–10 mm (0.23 –0.39 in)

Pedal Height

173–185 mm (6.81–7.28 in)

POWER-ASSISTED BRAKE SYSTEM

5C–21

Master Cylinder Assembly

Master Cylinder Assembly and
Associated Parts

330R200006

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Removal

CAUTION:  When removing the master cylinder
from the vacuum booster, be sure to get rid of the
internal negative pressure of the vacuum booster
(by, disconnecting the vacuum hose) in advance.
If any negative pressure remains in the vacuum
booster, the piston may possibly come out when the
master cylinder is being removed, letting the brake
fluid run out.
 While removing the master cylinder, do not hold the
piston as it can be easily pulled out.
Outside surface of the piston is the surface on
which seals are to slide. Care should be taken to
keep the surface free of cuts and dents.

1. Disconnect electrical connector.

2. Remove brake pipes and after disconnecting the

brake pipe, cap or tape the openings of the brake
pipe to prevent the entry of foreign matter.

3. Remove 2 attaching nuts.

4. Remove P&B valve and bracket.

5. Remove master cylinder.

Inspection

Excessive brake pedal travel, malfunction or dragging
brake suggests that the master cylinder is defective. In
such cases perform the following visual check:

Visual Check

Make parts replacement as required if wear, distortion,
nicks, cuts, corrosion, or other abnormal conditions are
found through the following parts inspection:

• Master cylinder body

• Fluid reservoir

• O–ring

Legend

(1) Electrical Connector
(2) Master Cylinder

(3) 2 attaching Nuts
(4) P&B Valve and Bracket
(5) Brake Pipes

5C–22

POWER-ASSISTED BRAKE SYSTEM

Master Cylinder Assembly

Master Cylinder Assembly Desassembled View

330R200005

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Desassembly

1. Remove the spring pin.

2. Remove the reserve tank and the reserve tank cap.

The brake fulid level switch is built–in to the reserve
tank and cannot be removed.

3. Remove the O–ring.

4. Remove the snap ring.

5. Remove the primary piston assembly.

6. Invert the cylinder body and push on the secondary

piston until the pin falls free.

7. Remove the secondary piston assembly.

8. Remove the cylinder body.

Inspection

Excessive brake pedal travel, malfunction or dragging
brake suggests that the master cylinder is defective. In
such cases perform the following visual check:

Legend

(1) Spring Pin
(2) Reserve Tank and Reserve Tank Cap
(3) O–ring

(4) Primary Piston Assembly
(5) Secondary Piston Assembly
(6) Cylindr Body