Princeton Truck Mounted Forklift, Operator'S Manual

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A4. OPERATING PROCEDURES
63
Diff-Lock
Operation of Diff-Lock
Under normal driving conditions the Truck Mounted
Forklift operates in all-wheel drive. However, in the
event of one or more wheels losing grip the machine
may lose traction, stop or skid. By engaging the diff-
lock you will get equal positive drive to all three wheels.
To avoid damage to the hydraulic system:
·
Do not engage the diff-lock when the machine is
moving.
·
Do not use the diff-lock where traction is good.
·
Do not use the diff-lock when turning corners.
When to use Diff-Lock
·
If one or more wheels lose traction while traveling
through soft or slippery ground conditions.
·
To maintain traction while traveling on slopes or
inclines.
·
To improve braking and traction when reversing
downhill.
CAUTION:
Diff-Lock. Use the diff-lock only while traveling in a
straight line.
How to Activate the Diff-Lock
1. Foot-Pedal Control
a) Return the forward/reverse pedal to the neutral
position to stop the machine.
b) Check to see that the rear wheel is in the straight-
ahead position.
c) Engage the diff-lock switch.
d) Increase the engine revs.
e) Depress the forward/reverse pedal lightly in the
required direction.
f) Do not overload the engine.
g) The diff-lock may be released while the machine is
in motion.