Volvo VNL 780 Operator's Manual page 95

INSTRUMENTS AND CONTROLS 85
6. Inter-Axle Differential Lock
The inter-axle differential lock eliminates slipping between axles to improve traction. The
switch has a safety latch to prevent accidental engagement.
6. Inter-Axle Differential Lock
The inter-axle differential lock eliminates slipping between axles to improve traction. The
switch has a safety latch to prevent accidental engagement.
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When the lock is engaged, a tell-tale lights up in the instrument cluster.
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Inter-Axle Tell-Tale
A differential lock should only be used on a slippery surface, NOT when driving on good
road conditions. If a differential lock tell-tale is activated in the instrument cluster, DO NOT
make turns until the tell-tale has gone out. Refer to "AXLES" on page389 for information
on how to properly engage and drive with differential locks engaged.