Warren Elevating 5
th
Wheel
14
Installation
Air Control System
Figure 3 Pneumatic control diagram
Notes and Cautions
The use of a pressure protection value will prevent the tractor’s air reservoir from
bleeding should an air line break. Therefore, it is very important to have this installed on
or close to the air tank.
If you are supplying your own air shift pump, you
MUST
install a restrictor valve to limit
5
th
wheel decent speed. Allowing the 5
th
wheel to lower too quickly can cause damage to
the contents of the trailer and can cause damage to the 5
th
wheel assembly. There is a
restrictor valve included with each Warren air shift pump.
DO NOT REMOVE THIS
VAVLE.
Figure 4 Restrictor valve Do not remove!
Pressure Port of
Pump
