IC Bus Gasoline CE Series, Operation And Maintenance Manual, Page: 176 / 241

Maintenance Instructions
The pressure regulator should be set at approximately 60 psi
(276-345 kPa). The regulator can only be set to a maximum
of 60 psi (414 kPa). In cold weather, seals may stiffen and
require more air pressure for proper operation. The pressure
can be increased by lifting and turning the adjustment knob (3)
clockwise. Then press the cap back down.
Opening Speed Adjustment
Loosen the locknut (4) and turn the opening speed screw (1)
clockwise to slow the door opening speed, or counterclockwise,
to increase the door opening speed. Tighten the locknut (4).
Closing Speed Adjustment
Loosen the locknut (4) and turn the closing speed screw (2)
clockwise to slow the door closing speed, or counterclockwise,
to increase the door closing speed. Tighten the locknut (4).
Electrically Actuated Entrance Door Adjustment
Electrically actuated doors are set to operate in 2 to 2 ½ seconds.
There is no adjustment for electrically actuated door opening and
closing speed.
Axles
Typical Axle, Tire, and Rim Specifications-Vehicle
Identification Label
Front Axle – Inspection and Lubrication
Check to make sure that the front axle mounting U-bolts and nuts
are securely tightened.
Check front axle for damaged, binding, or worn parts, and
adequate lubrication.
• Kingpin wear inspection requires that no weight is on the
tires.
• Kingpin and kingpin bushing lubrication requires that
the vehicle weight is off tires prior to installing grease to
maximize grease distribution.
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