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Hookup/Coupling and Uncoupling (cont.)
• Visually inspect the coupling using a flashlight.
– Ensure there is no space between the upper
coupler and fifth wheel.
– Ensure the fifth wheel jaws have closed
around kingpin shank.
– Ensure the locking lever is in the “locked”
position.
• Inspect and connect the air lines and electrical
cord, ensuring proper clearance.
• Fully retract the landing gear and stow the crank
handle. Use low gear until the legs are no longer
in contact with the ground.
Sliding the Tandem
Most Wabash National trailers have sliding
tandems to allow for bridge law compliance,
maneuverability, or to comply with loading dock
safety requirements. Sliding tandems are held in
place by a locking pin mechanism operated by a
pull handle or air-operated control.
CAUTION
Exercise caution when repositioning the
tandem location.
The proper method of sliding a tandem
1. The driver should position the tractor and trailer
in a straight line on level ground and note the
position of the vehicle in reference to how far the
trailer should travel before reaching the desired
tandem position.
2. The driver must set the parking brakes and
proceed to the bogie lock pin release handle.
3. After assuming a safe, firm stance, the driver
should manually disengage the bogie lock pins.
4. After returning to the tractor, the driver should
ease forward or backward in the lowest gear
range available (walking speed) to the desired
suspension location. If the bogie lock pins are
in a bind and the tandem fails to slide, it may be
necessary to apply minimal force in a forward
and rearward direction to allow the locking pins
to completely disengage. The driver must be
prepared to stop immediately upon low-speed
contact with the front or rear stop bar.
!
Summary of Contents for Dry and Refrigerated Van Trailers
Page 4: ......
Page 6: ...2 Introduction Example VIN Tag...
Page 20: ...16 Standard Wabash Wiring Schematic Systems and Features...
Page 38: ...34 Operation...
Page 42: ...QMS F 0604 Rev 2...