DAF LF45, LF55 Series. Manual - part 251

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General

EATON FS/6309A GEARBOX

ΛΦ45/55 series

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1. GENERAL

1.1 GENERAL

Gearbox type
Each gearbox has a type plate attached to it, 

indicating the type of gearbox. This data can also 

be found on the vehicle identity card for the 

vehicle concerned.

Eaton gearbox type plate

The Eaton specification number is unique to each 

customer and gives detailed information on the 

development level of the gearbox. The number 

must be quoted whenever replacement parts are 

ordered.

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1.

Type of gearbox

2.

Specification no. Eaton

3.

DAF article Eaton code

4.

Serial no. Eaton

5.

Production date code

EATON FS/6309A GEARBOX

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General

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1.2 SYSTEM DESCRIPTION

The gearbox consists of a main gearbox with four 

synchromesh forward gears, a non-synchromesh 

crawler gear, and one non-synchromesh reverse 

gear. Between the main gearbox and the output 

shaft there is a set of planetary range gears with 

pneumatic synchronisation.

In the low range (planetary system engaged), the 

crawler gear and gears 1, 2, 3 and 4 can be 

engaged.

In the high range (planetary system disengaged), 

gears 5, 6, 7 and 8 can be engaged.

The switching system is in a "single-H" pattern. 

Use of the "single-H" system means that the low 

or high range must be selected by means of a 

button on the ball of the gear lever prior to 

engaging gear. The group is changed as soon as 

the selector shaft passes through the neutral 

position.

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Inspection and adjustment

EATON FS/6309A GEARBOX

ΛΦ45/55 series

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2. INSPECTION AND ADJUSTMENT

2.1 CHECKING GEARBOX OIL LEVEL

To prevent skin injury, avoid 

unnecessary contact with the 

drained oil.

1.

Position the vehicle on a level surface.

2.

Wait for some minutes to allow the oil to flow 

back.

3.

Remove the level check/filler plug (1) and 

check the oil level.

4.

The oil level must reach the rim of the level 

check/filler opening (1).

5.

After checking the oil level, tighten the level 

check plug to the specified torque. See 

"Technical data".

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EATON FS/6309A GEARBOX

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Inspection and adjustment

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2.2 INSPECTION AND ADJUSTMENT, INPUT SHAFT BEARING AXIAL PLAY

Inspection, input shaft bearing axial play
1.

Remove the gearbox. See "Removal and 

installation".

2.

Remove the gearbox front cover from the 

input shaft. See "Removal and installation".

3.

Check whether the circlip (1) is flush in the 

groove. Check at various places around the 

shaft.

4.

If necessary, adjust the axial play by means 

of a thicker or thinner adjusting ring (2).

Adjustment, input shaft bearing axial play
1.

Remove the circlip (1) of the input shaft 

bearing.

2.

Remove the adjusting ring (2).

3.

Place an adjusting ring (2) of the correct 

thickness between the input shaft bearing 

and the circlip. See "Technical data".

4.

Fit the circlip (1) without any play into the 

groove. Check at various places around the 

shaft.

5.

Fit a new gasket in the gearbox front cover 

and install the gearbox front cover. See 

"Removal and installation".

6.

Fit the gearbox. See "Removal and 

installation".

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