CHASSIS INFORMATION - 10
177
CAYMAN 2007
NOTE:
Due to air pressure restrictions
in the pressure protection valve
and tire stem valve, the maximum
amount of tire pressure achieved
when the system is used to fill a tire
is approximately 115 psi with the air
system on the motorhome charged to
130 psi. Maximum outlet air pressure is
achieved when the air system completes
the fill cycle indicated by the purge
cycle of the air dryer. Use a short hose
to reduce tire fill time.
Air System - Charging (External)
The air system on the motorhome can be
charged from an external air supply source.
Located in the generator compartment is a
type C automotive male fi tting (also used as
front tank drain). Caution should be used when
charging the air system from this fi tting. The air
supplied from an external source may contain
moisture. Compressed air introduced into the air
system on the motorhome from this fi tting is not
fi ltered by the air dryer. The auxiliary air charge
fi tting will charge the front and rear air tanks.
A shut-off valve is installed to prevent air from
escaping.
CAUTION:
The external air supply source should
be regulated to charge the air system
on the motorhome no higher than
140 psi. Damage to the air system or
pneumatically operated items may occur.
AIR DRYER
The air dryer, located between frame rails
in front of drive axle, removes moisture from
the compressed air system to prevent freezing
of brakes or other pneumatically operated
items. The three functions of the air dryer are
cooling, fi ltering and drying the system air. This
prevents valve and seal damage or wash away
of lubricants as well as freeze damage to the
system components.
Air Dryer Cycle:
The governor turns the compressor on
when the supply tank pressure drops below
cut-in pressure. Compressed air then passes
into the air dryer at the inlet port. Moisture-
laden air and contaminants pass through the
desiccant. Moisture is retained by the desiccant
and collects in the base of the dryer. When
the compressor reaches cut-out pressure
(approximately 145 psi) the purge valve opens
and the dryer purges and expels water collected
in the dryer base. The regeneration valve opens
sending a small charge of dry system air from
the front air tank back through the dryer. The
backfl ow dries the desiccant, preparing it for the
next cycle.
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 to allow collected moisture,
condensation and contamination to
expel from the air dryer during the purge
cycle.
2. Pressure Relief Valve:
Protects the air
dryer from over-pressurization.
3. Regeneration Valve:
Controls
regeneration of the desiccant by allowing
air from the supply and secondary tanks
to bypass the outlet check valve.
4. Heater Power Connection:
Provides
12 Volt DC power to the heating
element.
070164b
090435
Charge
Located in generator compartment.
Содержание CAYMAN 2007
Страница 12: ...GENERAL INFORMATION 1 CAYMAN 2007 8 NOTES...
Страница 14: ......
Страница 16: ......
Страница 52: ...DRIVING SAFETY 2 CAYMAN 2007 48 NOTES...
Страница 80: ...EXTERIOR INTERIOR CARE 3 CAYMAN 2007 76 NOTES...
Страница 100: ...APPLIANCES 4 CAYMAN 2007 96 NOTES...
Страница 132: ...WATER SYSTEMS 6 CAYMAN 2007 128 NOTES...
Страница 160: ...ELECTRICAL SYSTEMS HOUSE 8 156 CAYMAN 2007 NOTES...
Страница 226: ...INDEX 222 CAYMAN 2007 NOTES...