Challenger Terra Gator 3244 Chassis. Manual - part 122

Introduction

7-8

627333-A  

Braking System

Brake Pedal

FIG. 13: The test point (2) of the brake pedal is located

next to the Steering Unit.

The pressure on the brake pedal has be to between 0 -

40 bar (0 - 580 PSI) depends on the force which

pressing the brake pedal down.

Brake Accumulators

The pressure in the accumulator has to be between

110 - 140 bar (1595 - 2030 PSI).

Adjusting Procedure  Brake System

See below for the correct adjusting procedure of the

braking system.

FIG. 14: Test point on the priority valve.

•

Connect the pressure gauge to test point (1);

•

Start the engine and measure the pressure at the

gauge. The pressure shoud be around 140 bar

(2030 PSI);

•

Kick the brake pedal several times so the

accumulators pressure decreases;

•

The pressure shoud not go below 110 bar  (1595

PSI). The hydraulic pump will fill the accumulator

pressure, it must rise again to 140 bar  (2030 PSI);

NOTE: See the tooling list for the correct partnumbers

of the tools.

FIG. 13

q000145s

2

FIG. 14

Q000094S

1

627333-A  

7-9

Introduction

FIG. 15:

•

When pressure is incorrect at 110 bar  (1595 PSI),

adjust it. To adjust the pressure turn (2) clockwise

to increase and turn counterclockwise to decrease.

•

When the pressure decreases to 85 bar  (1232

PSI), an alarm inside the cab will go off.

FIG. 15

Q000109S

2

627333-A  

7-11

Schematic

SCHEMATIC

HYDRAULIC SCHEMATIC

FIG. 1

Q619399S

Schematic

7-12

627333-A  

1. Tank, Filter and Cooler;

2. Priority Valve;

3. Brakes;

4. Orbitrol;

5. Emergency Steering (Option)

FIG. 2

Q000107S

2

1

5

4

3