Operation and maintenance manual

3-40

HAZARD

TEST

Differential Lock

The differential lock switch engages the differential locks in both the

transmission drop-box differential and the centre axle thru-drive differential

for improved traction when operating in soft or slippery conditions. The amber

'Differential Lock' switch illuminates to alert the operator when the differential

locks are requested. The amber 'Differential Lock' warning light on the

instrument panel will illuminate when all the differential locks are

actually engaged.

Note: Automatically-acting limited slip differentials in each axle will retain

traction on most surfaces, therefore it should only be necessary to engage the

differential locks in extreme conditions.

To apply the differential locks, stop the machine with the service brakes and

operate the Differential Lock switch. Stop the machine and disengage the

differential locks as soon as conditions allow.

Note: Before driving in soft or slippery conditions, stop and engage differential

locks. Spinning wheels can result in damage to the transmission and

axle differentials.

Note: Disengage differential locks before driving on firm ground.

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