DAF LF45, LF55 Series. Manual — part 247

©

200508

3-3

Inspection and adjustment

ZF 6S-850 GEARBOX

ΛΦ45/55 series

3

5

3.3 INSPECTION AND ADJUSTMENT, SECONDARY SHAFT AXIAL PLAY

Inspection and adjustment, secondary shaft
axial play
1.

Press the outermost bearing race uniformly

so that the bearing is free of play. Rotate the

secondary shaft constantly while pressing,

so that the bearing gets set.

2.

Use a depth gauge to determine the distance

between the outer bearing race and the

gearbox housing (A).

3.

Compare the measured value with the

specified permissible value. See "Technical

data".

4.

If necessary, adjust the axial play by means

of another adjusting ring.

5.

Calculate the play for the correct size of the

adjusting ring as follows:

V3 00 402

A

Distance A

2.95 mm

Gasket thickness

+0.40 mm

Play

(0 - 0.1) - 0.05 mm

Required adjusting ring =

3.30

≥ 0.05 mm

ZF 6S-850 GEARBOX

3-4

©

200508

Inspection and adjustment

5

ΛΦ45/55 series

3

©

200508

4-1

Removal and installation

ZF 6S-850 GEARBOX

ΛΦ45/55 series

3

5

4. REMOVAL AND INSTALLATION

4.1 REMOVING AND INSTALLING GEARBOX, BE ENGINE

Removing gearbox assembly
1.

Make sure there are no loose items in the

cab. Tilt the cab.

2.

Disconnect the negative clamp of the

battery.

3.

Remove the gearbox cable harness and

secure it.

4.

Loosen the tachometer connection.

5.

Remove the shift control by loosening the

torque rod bracket and the lever on the

selector shaft.

6.

Remove the prop shaft and secure it so that

it does not interfere with further operations.

7.

Remove the exhaust pipe between the

engine brake and the silencer.

8.

Remove the clutch servo. No air or hydraulic

pipes need be removed. Secure the servo

and ensure that no one in the cab can

operate the clutch pedal as long as the servo

is not fitted.

9.

Place a jack under the gearbox and remove

the bolts around the clutch housing.

10. Use the jack to pull the gearbox away from

the engine and remove the gearbox.

V300407

4

5

ZF 6S-850 GEARBOX

4-2

©

200508

Removal and installation

5

ΛΦ45/55 series

3

Installing gearbox assembly
1.

Before positioning the gearbox, one gear

should be engaged in order to allow the input

shaft to slide into the clutch plate during

installation. Also, apply a small amount of the

specified grease to the input shaft.

2.

Fit the thrust bearing.

3.

Use the jack to move the gearbox towards

the engine and fit the attachment bolts

around the gearbox.

4.

Install the clutch servo and tighten the

attachment bolts.

5.

Fit the exhaust pipe between the engine

brake and the silencer.

6.

Fit the drive flange.

7.

Fit the shift control.

8.

Fit the cable harness and tachometer

connection.

9.

Connect the negative clamp of the battery.

10. Inspect the shift control.

11. Check the oil level after the gearbox has

been installed.

12. If a gearbox of a different type is mounted, or

a gearbox with a different reduction, this

should be reported. If the correct data are

present, they can be input into the VIC using

DAVIE XD.