Spicer Drive Axle Wheel Differential Lock - Manual (Page 10)

8
Operation
Important To Remember
When engaged, the wheel differential lock will cause the vehicle to under-
steer, meaning that the vehicle will not turn as quickly, and more steering
effort will be required.
Do not use the wheel differential lock when traveling downhill. This will ensure
maximum control of the vehicle.
Use the wheel differential lock only at speeds less than 25 MPH. At higher
speeds the under-steer handling characteristics could be dangerous.
The differential lock should only be engaged when the vehicle is stationary
(recommended), or moving less than 25 MPH without wheel differentiation
(spinout). Engagement of the wheel differential lock while wheels are rotating
at different speeds (differentiation) may cause shift fork scoring and bending,
clutch teeth to fail and/or axle shaft shock failures.
This system should only be used when poor traction is encountered; it must
be disengaged when traveling on solid road surfaces.
Operating the wheel differential lock in the engaged "lock" position of sold sur-
faces while turning corners (differentiating), may cause clutch jump out dam-
aging shift system components.
The wheel differential lock may not disengage immediately due to torque
"wrap up". This wrap up can occur when the system is disengaged while the
vehicle is operating on surfaces such as sand, mud or even snow.