Challenger Terra Gator 3244 Chassis. Manual - part 124

Air Compressor

8-2

627333-A  

FIG. 2: Remove two bolts (1) at rear of compressor

holding compressor mount to engine block.

FIG. 3: Support air compressor (1). Air compressor

weighs approximately 23 kg (51 lb). Remove two bolts

(2) at front of engine holding compressor to timing gear

housing. 

Slide compressor back to disengage gear teeth.

Remove gasket with compressor.

FIG. 2

1

N072412003

FIG. 3

1

2

N072412004

627333-A  

8-3

Air Compressor

AIR COMPRESSOR INSTALLATION

NOTE: Keep all parts clean from contaminants.

Contaminants can cause rapid wear and

shortened component life.

Install mounting bracket to back of air compressor with

two bolts. Inspect air compressor gasket and replace if

necessary. Install gasket between air compressor and

timing gear housing.

Apply thread locking compound to mounting bolts.

Mount compressor to engine with four bolts, ensuring

gear meshes properly in timing gear housing. Two bolts

in front of housing and two through mount and into

engine block.

FIG. 4: Torque front mounting bolts (1) to 80 to 120

Nm  (60 to 90 lbf ft) and rear mounting bolts (2) to 45 to

65 Nm  (33 to 47 lbf ft).

FIG. 5: Connect high temperature braided hose from

compressor to air dryer. Connect coolant lines going to

front (1), top (2) and rear (3) of compressor. Connect oil

line (4).

Refill cooling system with 50/50 water and ethylene

glycol mixture coolant.

FIG. 4

1

M70511004

2

FIG. 5

1

4

2

3

N072412002

627333-A  

8-5

Air Tank and Pressure Control Check Valve

AIR TANK AND PRESSURE CONTROL CHECK VALVE

THEORY OF OPERATION

There are two air tanks in the standard air system. The

wet tank and the dry tank. The wet tank collects

condensation from compression and has a drain valve

to remove moisture. Compressed air flows from the wet

tank to the dry tank. The dry tank supplies air to the

braking and accessory systems. 

There is a pressure control check valve (PCCV)

mounted in the output port of the wet tank. The PCCV

lets air flow from the secondary tank to the supply tank

as long as system pressure remains between the cut

in/out range for the governor.

NOTE: The air which reached the wet air tank has

already past the air dryer. So the term “wet

tank” is a proverbial expression and means the

air can be a little wet. But the practice shows

there is rarely fluid in this tank.

Air Tank and Pressure Control Check Valve

8-6

627333-A  

AIR TANKS

NOTE: All orientation directions are in relation to the

driver’s position.

FIG. 1: Tanks (1) are mounted underneath the engine

(2). The wet tank collects condensation that can be

released by operating drain valve (3) on bottom of tank.

Air Tank Removal

NOTE: For example we use the wet tank.

FIG. 2: Mark and disconnect signal air hose (1) from

wet tank (2) to air governor.

Disconnect supply hose (3) from air dryer.

Disconnect output hose (4) to dry tank (5).

m

WARNING: Remove all air pressure from

tanks before disconnecting any air

hoses. Pressurized air can cause serious

personal injury.

FIG. 3: Remove nut holding hose support and remove

support.

Remove four nuts (1) that hold clamp and tank

assembly to frame brackets and remove tank

assembly.

Loosen tank clamps (2) and remove clamps from tank.

FIG. 1

2

q000175s

3

1

FIG. 2

1

2

3

5

4

q000176s

FIG. 3

q000177s

1

2