Monaco Cayman 2006, Manual

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Cayman 2006 Chassis Information — Section 10 • 233
Check the distance in the front:
1. Measure the distance between the mounting plates of the air springs.
2. If the measurement is off, loosen the adjusting lock nut at the eccentric slot on the valve.
3. Move the plastic arm up to raise suspension height and infl ate all the front air springs. Move the plastic
arm down to lower suspension height and defl ate the air springs. Make adjustments in small increments.
4. After obtaining the specifi ed distance, insert a 1/8" or 7/64" twist drill bit into the plastic arm and valve
body. This will center the travel of internal piston. Tighten adjusting lock nut between 60 to 80 in/lbs.
5. Check adjustments made by using the Air Dump switch to defl ate air springs. Start the engine and allow
the air system to become fully charged. Allow the suspension to adjust and come to a neutral setting.
6. Re-check the suspension height measurement. Follow the same procedure for each rear control valve.
7. Re-check the front suspension height after adjusting the rear height control valves.
NOTE:
Do not modify length of the linkage rods. Make any necessary adjustments using eccentric
slot on the ride height control valve.
BRAKE SYSTEMS
Air Brakes
The air brake system on the motorhome differs from a conventional automotive hydraulic braking system and
should be treated differently. Proper maintenance and lubrication are the keys to keeping the air brake system in
proper working order.
Consideration needs to be given to stopping distances and air system pressures. The motorhome requires
longer stopping distances. Each brake application uses air from the air system, and engine speed is directly
proportional to how fast that air system is replenished. Prepare for downhill grades. It may be necessary to
select a lower gear and/or use the engine brake. Use individual short brake applications down long hills, rather
than “riding” the brakes, to extend the life of the brake lining. Avoid overheating the brakes. Hot brakes have
less stopping power. When maneuvering the motorhome around small areas, or backing into spaces, several
individual brake applications might be made. Watch the air gauge. When preparing to back into a space swing the
motorhome so it is aligned with the parking slot before backing up.
The air braking system on the motorhome is equipped with low air pressure warning system safety feature.
Should a low air condition arise while the motorhome is in operation, a warning buzzer will sound and a dash
warning light will illuminate at approximately 60 to 65 psi (pounds per square inch) to alert the operator.
A simple mechanical explanation of what occurs when a brake application is made is as follows: The air
system supplies air to the foot brake, or treadle valve. Pushing down on the treadle valve supplies an air charge
signal to a sealed brake chamber that consists of a spring and air bladder. The air charge signal pushes on the
bladder and extends a threaded rod connected to the automatic slack adjuster. The slack adjuster rotates the S-cam
expanding the shoes against the drum.