Chassis Information
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WINDSOR
10•260
1. Warm, humid air from the compressor condenses into either
liquid water or water vapor before entering the air dryer.
2. A desiccant-type air dryer protects the motorhome air
brake system brake drying moisture-laden air before it
passes through the air reservoirs and into the brake system.
3. Water collects in the base of the dryer when warm air
condenses into water before it enters the dryer, or inside
of the dryer before the water reaches the desiccant.
4. The desiccant material then removes additional water
vapor, further drying the air.
5. During the regeneration phase, the regeneration valve and
pressure controlled check valve remove water from the
desiccant bed with a backflow of dried, expanded system
air.
Air Dryer Components:
1. Purge Valve: A valve located on the bottom of the air
dryer base that remains open during a compressor unload
cycle. The purge valve allows collected moisture, conden-
sation and contaminants to be expelled from the air dryer
during a purge cycle.
2. Pressure Relief Valve: A valve that protects the air
dryer from over pressurization.
3. Regeneration Valve: The valve that controls regenera-
tion of the desiccant. The regeneration valve allows air
from the supply and secondary tanks to bypass the outlet
check valve. The air expands and backflushes moisture off
the desiccant through the dryer’s purge valve.
In extreme cold, make sure the air dryer heater is in good
working order. The heater in the air dryer is a 100-watt heater
controlled by ignition power and turned off when the ignition
is switched off. Thermostat operating range is on below 45° F
and off when the temp is above 86° F. The fuse is located in
the front electrical bay outside, beneath the front roadside
window.
WARNING: Remove all pressure from the air system before dis-
connecting any component, including the desiccant cartridge.
Pressurized air can cause serious personal injury.
Desiccant-Type
Air Dryer
1
3
2
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