Spicer Drive Axle Wheel Differential Lock - Manual (Page 9)

7
Operation
Operating Instructions
Engage (Lock)
1. Flip the control valve lever to the " Lock" position, either while the
vehicle is stationary, or while moving at steady speed under 25 MPH
without the wheel differentiation (spinout).
2. Let up momentarily on the accelerator pedal to relieve torque on the
gearing and fully engage the sliding clutch.
3. When the differential lock is engaged, the indicator light will be on, or
an audible signal will sound.
Note: When the differential lock is engaged, the vehicle will under-steer,
requiring a longer turning radius for a given turn.
Disengage (Unlock)
1. To disengage the wheel differential lock, flip the control lever to the
"Unlock" position.
2. Let up on the accelerator pedal momentarily to relieve torque and
allow the sliding clutch to disengage.
3. When the differential lock is disengaged, the indicator light and/or
audible sign will go out.
Note: Occasionally the differential lock may not disengage immediately due to
torque “wrap up,” when this occurs, drive normally for a short distance
with the control level still in the "Unlock" position until normal road
forces release the torque wrap up condition.