DAF LF45, LF55 Series. Manual — part 261

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General

ALLISON MD 3060 AUTOMATIC GEARBOX

ΛΦ45/55 series

3

8

Gearbox oil temperature
If when driving the gearbox warning lamp lights

up in the main display, this may mean that the

gearbox oil has reached the maximum

temperature of 121

″C.

In this situation, the ECU limits gearbox shifting to

the first four gears.

It is important to drive to a safe place as soon as

possible and let the engine idle in neutral at an

increased idling speed.

As a result, the cooling system of the engine will

try to cool the gearbox oil.

If after approximately two minutes the warning in

the master display has not disappeared, the

engine must be turned off and contact made with

the nearest DAF dealer.

Use of the engine brake
When the engine brake is operated in third or a

higher gear, the ECU will change down to second

gear as soon as the engine speed permits so as

to get the maximum braking effect from the

engine brake.

On the selector display, the second gear selected

by the ECU is displayed.

Towing the vehicle
To tow the vehicle, the prop shaft must be

detached at the rear axle.

It is also possible to remove the axle shafts. As oil

can be lost in this process, it must be avoided as

much as possible owing to environmental

concerns.

Towing the vehicle without taking

the above into consideration may

lead to serious damage to the

gearbox.

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General

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Description of components

ALLISON MD 3060 AUTOMATIC GEARBOX

ΛΦ45/55 series

3

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2. DESCRIPTION OF COMPONENTS

2.1 AUTOMATIC GEARBOX SELECTOR KEYPAD

The selector has the following functions:

-

activating and deactivating the gearbox

-

choosing a shift program

-

reading the oil level

-

reading and deleting fault codes

The selector has the following six keys:

Neutral position
No gear is activated in the "N" position. The

vehicle is not locked in this position and can

therefore roll.

Use the parking brake to lock the vehicle.

"N" appears on the display.

Automatic forward drive
If the "D" position is selected, the vehicle will

immediately begin to move (if the brake system is

at pressure and the vehicle is not on the parking

brake). It is therefore advisable to depress the

brake pedal before selecting position "D". In this

position, the gearbox can automatically change

up to the highest gear.

The highest gear that the gearbox can change up

to is shown on the display.

Reverse
If position "R" is chosen, the vehicle will also be

immediately set in motion. First depress the

brake pedal and then select position "R". "R"

appears on the display.

Neutral

Neutral position

Display shows "N"

Drive

Automatic forward drive

Highest gear

Reverse

Reverse

Display shows "R"

MODE

Shift program selection

Normal or economy (LED on) program

√

Shifting up

Display shows the gear selected

™

Shifting down

Display shows the gear selected

R

D

MODE

N

V300392

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Description of components

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ΛΦ45/55 series

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Shift program selection
By pressing the "MODE" key briefly once,

another shift program can be selected from a

stationary as well as a driving position. Two

selections are possible:

Normal program
This program is chosen automatically when the

vehicle ignition has been switched off. No report

is displayed. This program allows the gearbox to

shift gears as and when necessary so that driving

at higher speeds is possible. This can be

desirable on unpaved terrain.

Economy program
The LED lights up on the selector display. This

program will in general change gear at somewhat

lower engine speeds. This results in more

economical fuel consumption.

√ Shifting down
After selecting the "D" key and when the vehicle

is driving, this key can be used to keep the

gearbox in a lower gear. The selected gear is

shown in the display. The gearbox will not change

up further until the "

™" or "D" key is pressed. The

number of gears that can be used will appear in

the display.

™ Shifting up
This key is used to change up to a higher gear.

However, this is only possible after previously

selecting to stay in a low gear.