Suspension Air Ride Bags; Checking Ride Height - Monaco 2002 Diplomat Service Manual

compensate for slight tilt. For example: Adjusting curbside rear height control
valve up will pivot roadside front corner down.
NOTE: Driveline angle is affected by the suspension ride
height. Improper driveline angle can damage suspension or
shorten the life of universal joints. Shock absorbers and air
springs are in travel centers at proper ride height.
To adjust suspension ride height begin with:
• Motorhome on flat level surface.
• Air system fully charged.
• Suspension at normalized ride height.
Start with front control valve. Loosen the adjusting
locknut at the eccentric slot on the valve. Move the
plastic arm up to raise suspension height, this will
inflate air springs. Move the plastic arm down to lower
suspension height, this will deflate air springs. Make
adjustments in small increments.
When the desired height is obtained, insert a 1/8" or
7/64" inch twist drill bit into the plastic arm and valve
body. This will center the travel of internal piston.
Tighten adjusting locknut between 60-80 in/lbs. Check
adjustments made by using Air Dump switch to deflate
air springs. Start the engine and allow the air system to
become fully charged. Allow suspension to adjust and
come to a neutral setting. Re-check suspension height
measurement.
Follow same procedure for rear control valves. Re-
check front suspension height when adjustments are
made to rear height control valves.
NOTE: Do not modify length of the linkage rods. Make necessary
adjustments using eccentric slot on ride height control valve.
Air ride springs are available in single, double and triple convolution
types plus reversible sleeve models for virtually every conceivable heavy-
duty vehicle suspension application.
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Measurement for the Diplomat:
Front = 9 ½ in., Rear = 11 ½ in.
D I P L O M A T
Chassis Information

Checking Ride Height

OM09093, OM09094.EPS
SUSPENSION
AIR RIDE BAGS
1 0 • 2 7 1