CAUTION
•
The declutch and PD lockup should only be
locked under poor operating conditions.
Turning radius and steering responsiveness
will be different in the locked condition. Under
poor operating conditions unlock the declutch
and PD lockup whenever possible.
•
Do not engage the declutch or PD lockup when
wheels are slipping or while the vehicle is
traveling up or down steep grades. Engaging
the declutch or PD lockup during these
conditions can cause damage to the transfer
case and a potential loss of vehicle stability.
4. Always monitor the optional engaged/disengaged
indicator lights. Do not operate the vehicle until the
proper engagement position is achieved.
Engaging and Disengaging the
Full Torque PTO
1. The PTO can be engaged or disengaged only
when:
•
transmission in NEUTRAL
•
vehicle stopped
•
all transfer case prop shafts no longer turning
2. If engagement is initiated and the clutch does not
fully engage, put the transmission into LOW and
slowly begin to spin the transfer case until
engagement occurs. The operator will know
engagement occurs by:
•
hearing engagement or disengagement
•
improved vehicle performance
•
optional indicator lights mounted in cab signal
engagement or disengagement.
3. When possible, the driven auxiliary device should
provide some resistance to spinning to assist in
engaging the PTO.
CAUTION
Do not engage the PTO if the transfer case is
stopped while the device that the PTO is to
drive is turning. Engaging the device during
these conditions can cause damage to the
transfer case.
4. Always monitor the optional engaged/disengaged
indicator lights. Do not operate the vehicle until the
proper engagement position is achieved.
Page 5
Operation
NOTE:
•
The Axle Declutch and Proportional Differential
(PD) Lockup provide maximum vehicle traction
on poor operating surfaces. Both provide
assured torque to all connected axles by
completely locking their input shafts together
to prevent spinout.
•
Disengage the Front Axle Declutch during normal
operation. Engage it only to provide additional
vehicle traction during poor operating conditions.
CAUTION
To avoid speed differences between axles, do not
actuate the declutch or PD lockup units during
normal driving conditions or high speed
operations.
Engaging the Front Axle Declutch and
PD Lockup
1. The declutch or PD lockup can be engaged only
when:
•
vehicle stopped
•
or vehicle operating at constant low speed
CAUTION
The wheels must not be slipping at the time
of engagement. This can cause damage to
components.
2. If engagement is initiated and the clutch does not
engage, turn the steering wheel in one direction
and rock the vehicle back and forth until
engagement occurs. The operator will know
engagement occurs by:
•
hearing engagement
•
improved vehicle performance
•
optional indicator lights mounted in cab signal
engagement.
3. When the declutch or PD lockup are engaged, the
vehicle should be operated only at speeds under
25 mph (40 km).
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Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • [email protected]