Operation
WARNING
To prevent property damage, personal injury, and
/ or death, pay strict attention to the following:
Care
should
be
taken
to
prevent
sudden
accelerations when both drive wheels are on a
slippery surface.
This could cause both drive
wheels to spin and allow the vehicle to slide
sideways, resulting in loss of vehicle control.
Tandem Axle Power Divider Lock (PDL) Control
CAUTION
To prevent property damage, do not operate the
vehicle with the PDL engaged on dry pavement
(good traction) continuously. This will result in
excessive tire wear and premature axle wear.
Never engage the PDL when the wheels are
spinning.
The PDL should be engaged, which prevents inter-axle
differential action, when backing under a trailer with a tractor,
or when there is poor traction, such as when starting on a
slippery surface, operating off highway in mud, or traveling
on slippery highways. Failure to lock the power divider under
these conditions may result in power divider failures and costly
repairs. If you encounter wheel spin conditions, the PDL switch
should be moved to the LOCK position.
CAUTION
To prevent vehicle and / or component damage,
engage the PDL only when stopped or moving at
low speed. Never try to engage the PDL while the
wheels are spinning as this may result in shock
damage to the power divider components.
When encountering slippery highway conditions (poor traction),
the PDL can be engaged at a low, even speed. Momentarily
letting off the accelerator will engage the differential lock. A
warning indicator on the instrument panel indicates when the
inter-axle differential is locked.
When highway conditions improve (good traction), the PDL
should be disengaged, again at a low, even speed. Letting
up on the accelerator momentarily will unlock the inter-axle
differential.
Tandem axle power dividers or inter-axle differentials
in the forward rear axle are controlled by the instrument
panel mounted Power Divider Lock (PDL LOCK)
switch.
The switch indicator will turn on when the PDL is
engaged (locked). The vehicle may be electronically
programmed to provide an alarm when a speed is
reached where it is not appropriate to have the power divider
locked. In this event, an alarm will sound (5 beeps) and the
switch indicator will flash slowly (once per second).
A fast
flashing (twice per second) switch indicator signifies a problem
in the PDL system.
164
Summary of Contents for ProStar+
Page 4: ......
Page 24: ...Foreword 12...
Page 38: ...Model Description 26...
Page 74: ...Controls Features Declination Zone Map 62...
Page 98: ...Controls Features Center Dash Panel Wing Panel 86...
Page 118: ...Controls Features 106...
Page 243: ...Maintenance Instructions 231...
Page 286: ...Maintenance Intervals and Specifications 274...
