Isuzu N-Series. Service manual - part 224

HYDRAULIC BRAKES 5A-55

Master Cylinder Assembly

Legend

1. Meter cluster

4. Brake hose

2. Switch connector

5. Master cylinder

3. Brake pipe

N5A0200E

5A-56 HYDRAULIC BRAKES

Removal

1. Meter CIuster
2. Switch connector

For the removal procedure for above, refer to Sec-
tion 2 CAB AND FRAME.

3. Brake Pipe

4. Brake Hose

1) Disconnect the brake pipes and hoses.
2) Plug or cover the brake rubber hoses, pipes

and the master cylinder brake fluid ports to pre-
vent brake fluid spillage.
If brake fluid spillage occurs, wipe it up immedi-
ately.

5. Master Cylinder

Installation

1. Master Cylinder

1) Install the master cylinder assembly to the vac-

uum booster or brake pedal assembly.

2) Tighten the nuts to the specified torque.

Tighten:
Master cylinder assembly nuts to 14 N

⋅m (1.4 kg⋅m / 122

lb

⋅in)

2. Brake Hose
3. Brake Pipe
4. Switch Connector
5. Meter Cluster

N5A0201E

N5A0185E

N5A0203E

N5A0205E

HYDRAULIC BRAKES 5A-57

Hydraulic Booster and Brake Pedal Assembly

Removal

• Block the vehicle wheels and apply the parking

brake.

• Disconnect the battery ground cable.
• By brake pedal operation with the engine off, re-

duce the pressure of the hydraulic oil in the accu-
mulator, and after confirming that the temperature
of the hydro boost assembly has been reduced, re-
move the hydro boost assembly from the vehicle.

1. Remove meter cluster.

2. Remove meter assembly and harness connector.
3. Remove instrument panel assembly and ventila-

tion duct.

4. Remove heat protector under the hydraulic boost-

er.

5. Steering wheel and column assembly.

• Remove inspection window and mark steering

worm shaft and U-joint yoke.
Remove key bolt and nut.

• Remove screws: boots to floor.

Legend

1. Meter cluster

6. ATF pipe

2. Meter

7. Brake pipe and hose

3. Instrument panel and duct

8. Brake pedal assembly with master cylinder and 

hydraulic booster

4. Heat protector
5. Steering wheel and column assembly

N5A0206E

5A-58 HYDRAULIC BRAKES

• Remove bolts and nuts: support bracket to

floor.

• Remove bolts: steering column bracket to in-

strument reinforcement assembly.

• Remove bolts: steering column bracket to

brake pedal bracket.

6. ATF pipe: inlet and outlet.

• Disconnect pipes from the booster.

7. Brake pipe and hose: front and rear.

• Disconnect pipes and hoses from the brake

master cylinder.

8. Brake pedal assembly with master cylinder and hy-

draulic booster.

• Remove accelerator pedal bracket.
• Remove brake pedal assembly mounting bolts.
• Remove radiator grille and disconnect ATF in-

let pipe from flexible hose in front of the radia-
tor.
Remove ATF inlet pipe.

• Remove brake pedal assembly.

Installation

1. Brake Pedal Assembly with Master Cylinder and

Hydraulic Booster

• Set ATF inlet pipe and install brake pedal as-

sembly.

Tighten:
M10 mounting bolts to 42 N

⋅m (4.3 kg⋅m / 32 lb⋅ft)

• Connect ATF inlet pipe with flexible hose.
• Install accelerator pedal bracket.
• Install radiator grille.

N5A0207E

N5A0208E