Operating With Differential Locks - Volvo A35E Operator's Manual

Right instrument panel
Indicator, differential locks / 6-wheel drive
4-wheel drive without differential locks
Longitudinal differential lock/6-wheel drive
Transverse differential lock, front axle

Operating with differential locks

Operating with differential locks
WARNING!
We warn especially against the method of trying to traverse
slippery ground by force with chains on one drive side only.
This oblique traction power causes extreme wear to the
power transmission and you may also lose control of the
machine and cause an accident with consequent personal
injuries.
NOTE! The differential lock must never be engaged when one
of the wheels is spinning.
IMPORTANT! Do not use drive and differential locks on more
wheels than what is required by the situation. Incorrect use
can cause unnecessary tyre wear, increased fuel
consumption and impair the manoeuvrability.
When operating with anti-slip devices (snow chains), the
differential locks and the 6-wheel drive should not be engaged.
Operation (without differential locks)
During operation four wheels on the machine are driving and
then there is no drive to the rear bogie axle.
All differential locks are disengaged.
No control lamps on the instrument panel are alight.
Longitudinal differential lock / 6-wheel drive
Engagement of the longitudinal differential lock automatically
causes the 6-wheel drive to be engaged as well.
The longitudinal differential lock and 6-wheel drive (6x6) is
used when operating on soft and slippery ground and on steep
inclines.
Engagement and disengagement can be made while operating
regardless of travelling speed.
The control lamp for longitudinal differential lock / 6-wheel drive
on the instrument panel will be alight.
The control lamp in the switch will be alight.
NOTE! The longitudinal differential lock / 6-wheel drive must
be disengaged when operating on good ground and at high
travelling speed.
Transverse differential lock, front axle
Only use the transverse differential lock on the front axle
separately when the ground is very slippery but firm to maintain
the best possible steering ability of the machine.
Disengage the lock when operating on firm ground.
The control lamp on the instrument panel for the differential lock
on the front axle will be alight.
The control lamp in the switch will be alight.
Operating instructions
65