DAF CF65, CF75, CF85 Series . Manual — part 236

©

200324

5-1

Removal and installation

PE ENGINE COOLING SYSTEM

CF65/75/85 series

2

6

5. REMOVAL AND INSTALLATION

5.1 REMOVAL AND INSTALLATION, COOLANT PUMP

Removal, coolant pump
1.

Drain the coolant. See "Draining and filling".

2.

Remove the V-belt from the air conditioning

compressor and the poly-V-belt from the

alternator.

3.

Remove the pulley from the coolant pump.

4.

Remove the attachment bolts from the

thermostat housing on the coolant pipe and

remove the thermostat housing and

connection piece.

5.

Disconnect all coolant hoses connected to

the coolant pump.

6.

Disconnect the pipe from the coolant pump

to the coolant filter.

7.

Remove the attachment bolts from the

coolant pump.

8.

Remove the coolant pump.

Installation, coolant pump
1.

Thoroughly clean and check the sealing

surfaces of the coolant pump, the thermostat

housing and the cylinder block.

2.

Install the coolant pump, using a new gasket.

Fit the attachment bolts. Tighten the

attachment bolts to the specified torque. See

"Technical data".

3.

Install the connection piece with new O-rings

onto the coolant pump.

4.

Fit new O-rings to the thermostat housing

and fit it to the coolant pipe.

5.

Connect the pipe from the coolant pump to

the coolant filter.

6.

Fit all coolant hoses connected to the coolant

pump.

7.

Fit the poly-V-belt.

8.

Install the V-belt and check the V-belt

tension. See "Inspection and adjustment".

9.

Fill the cooling system. See "Draining and

filling".

M200596

PE ENGINE COOLING SYSTEM

5-2

©

200324

Removal and installation

6

CF65/75/85 series

2

5.2 REMOVAL AND INSTALLATION, COOLANT FILTER

}

When the coolant is hot, there is an

overpressure in the cooling system.

Carefully remove the filler cap to

release the overpressure.

Do not remove the filler cap when the

engine is running.

Coolant is a toxic fluid. Contact with

the skin should therefore be

avoided.

In the event of contact with the skin:

remove the liquid with paper or a

cloth, wash with soap and water. If

irritation persists, consult a doctor.

If swallowed: DO NOT induce

vomiting. Rinse mouth, drink two

glasses of water and consult a

doctor.

In the event of inhalation: get fresh

air and rest.

In order to avoid damaging the

cylinder block, do not top up a warm

engine with coolant.

Removing the coolant filter
1.

Place a tray beneath the coolant filter to

collect any escaping coolant.

2.

Remove the filler cap from the expansion

tank.

3.

Turn the shut-off valve (1) clockwise to the

"C" position.

4.

Remove the coolant filter by turning it

counter-clockwise.

Installing the coolant filter
1.

Clean the sealing face of the coolant filter.

2.

Apply a small amount of coolant to the

sealing ring of the coolant filter.

3.

Fit the coolant filter so that the sealing ring

makes contact. Then tighten the filter by

hand ½ to ¾ of a turn.

4.

Turn shut-off valve (1) anti-clockwise to the

"O" position.

5.

Fit the filler cap on the expansion tank.

6.

Run the engine and check that the coolant

filter seals correctly.

7.

Check the coolant level.

O

1

C

M200372

©

200324

5-3

Removal and installation

PE ENGINE COOLING SYSTEM

CF65/75/85 series

2

6

5.3 REMOVAL AND INSTALLATION, THERMOSTAT

Removing the thermostat
1.

Drain the coolant. See "Draining and filling".

2.

Remove the hose between the thermostat

housing and the radiator.

3.

Remove the thermostat housing attachment

bolts.

4.

Remove the thermostat housing and the

connecting piece from the coolant pump.

5.

Remove the O-ring (A) from the thermostat

housing.

6.

Remove the thermostat.

Removing the thermostat oil seal
1.

Remove the oil seal (B) from the thermostat

housing, using a commercially available

internal puller.

Removing the thermostat seat
1.

Remove the thermostat seat (C) at the

bottom of the thermostat housing, using a

commercially available internal puller.

M200742

A

B

C

PE ENGINE COOLING SYSTEM

5-4

©

200324

Removal and installation

6

CF65/75/85 series

2

Installing the thermostat seat

1.

Apply locking compound to the thermostat

seat (C) and fit it in the thermostat housing

using the special tool (DAF no. 1310456).

See "Technical data".

Installing the thermostat oil seal
1.

Fit the thermostat seal (B) in the thermostat

housing using the special tool

(DAF no. 1310456).

Installing the thermostat
1.

Fit the thermostat in the thermostat housing.

2.

Fit the O-ring (A) in the thermostat housing.

3.

Fit new O-rings to the connection piece from

the thermostat housing to the coolant pump,

and fit the connection piece in the thermostat

housing.

4.

Fit the thermostat housing onto the coolant

pipe.

5.

Fit the thermostat housing attachment bolts.

Tighten the attachment bolts to the specified

torque. See "Technical data".

6.

Fit the hose between the thermostat housing

and the radiator.

7.

Fill the cooling system. See "Draining and

filling".

M200742

A

B

C