This section contains knowledge and information on various components
of your motorhome chassis. Following the guidelines and procedures will
help you to understand and operate your motorhome. Complete instructions
for various components can be located in the operators manual included in
the Owners Information File box.
WARNING: When frame or other welding is involved for motorhome
repair or modification the following precautions are required to protect
electric components in the motorhome chassis.
1. Disconnect the (+) positive and (-) negative battery connection, and any
electronic control ground wires connected to the frame or chassis.
2. Cover electronic control components and wiring to protect from hot
sparks.
3. Disconnect the wiring harness connectors at the transmission electronic
control unit. Open bed storage compartment, open engine access door.
ECU is located above the transmission.
4. Do not connect welding cables to electronic control components.
5. The welding ground cable should be attached no more than 2 feet from the
part to be welded.
The Roadmaster chassis has been designed to provide exceptional bal-
ance, handling and braking characteristics. The Roadmaster rear engine chas-
sis is an engine and frame unit featuring a semi-monocoque tubular all steel
frame design, providing greater structural integrity and more uniform stress
distribution. Incorporated in the Roadmaster chassis is the exclusive air glide
suspension system using eight outboard mounted air bags and shock
absorbers. Tag axle models will also incorporate two inboard mounted air
bags and shock absorbers. The design and set up is intended to provide the
smoothest ride, best handling and troublefree service while delivering top
notch drivability. The chassis will also incorporate a three point hydraulic
leveling system or air leveling system. The Roadmaster chassis design offers
unsurpassed ease of maintenance and service.
The towing system incorporated in the construction of the frame is rated
at 10,000 lbs towing and 1,000 lbs tongue weight.
The Roadmaster’s exclusive cushion air glide suspension consists of front
and rear axles, with leading and trailing arms in a parallel four link arrange-
ment. A panhard bar is provided for each axle to control side motion. Each
axle is mounted to a wide platform H-frame which carries the coach body on
eight outboard mounted air bags (4 front and 4 rear). Each of the eight air
bags is coupled with a Bilstein gas shock absorber. The suspension control
arms are attached to the frame through bushings, which require no lubrica-
tion.
The suspension ride height is preset and will maintain the proper ride
height automatically throughout the load range.
Chassis Information
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S I G N A T U R E
1 0 • 2 6 0
INTRODUCTION
Summary of Contents for SIGNATURE 2001 series
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