SL20K Self-Steering Axle and Suspension System Installation Manual
1
1. Introduction
This publication is to acquaint and assist you in
installing and operating the Watson & Chalin
Auxiliary Steerable Liftable Air Ride Suspension
Product Line and is intended for use only with
this Product Line.
This manual includes installation and operating
information on Watson & Chalin model numbers:
SL-2065
Watson & Chalin reserves the right to change its
products or manuals at any time. Contact Watson
& Chalin at 1.800.445.0736 for information on
recent changes to products.
Defective components should be returned to
Watson & Chalin with a pre-arranged Returned
Goods Authorization (RGA) number through the
warranty department. If the defect is in
compliance
with
warranty
conditions,
the
defective component may then be replaced.
If the part is damaged in shipment, please
contact the freight company to file a claim. The
freight company is responsible for any damage to
components during shipment.
IMPORTANT
The entire manual must be read and understood
before proceeding with installation or service of
any components.
This manual should be used in conjunction with
corresponding drawings that come with Watson
& Chalin suspensions upon delivery.
The vehicle manufacturer must approve any
changes to the vehicle frame before the changes
are done. Cutting or altering the vehicle’s frame
is normally not permitted by the manufacturer
and
affects
the
manufacturer’s
warranty
coverage.
1.1 Installer Responsibility
The installer of the suspension system must:
•
Ensure that the vehicle functions properly
with the increased weight of an additional
axle.
•
Determine the correct location of the
suspension to provide the proper vehicle load
distribution as to not exceed the rated
capacity of the components involved.
•
Ensure the installation of the correct brake
system components to guarantee proper
braking performance. Brake installation must
comply with FMVSS121 specifications.
•
Ensure that proper clearance exists between
the drive shaft and the auxiliary axle.
•
Ensure suspension operates within run
range.
2. Before You Begin
Before you begin to install the Watson & Chalin
suspension system, you must:
•
Check specifications on suspension systems
to be sure that the correct suspension
system was chosen for the vehicle.
•
Verify the vehicle frame width is within the
allowable mounting range of the suspension
and that the vehicle crossmembers are
correctly positioned.
•
Mark the location of the suspension side rails
and check for interferences with existing
bracketry and components.
•
Check for interference between the axle and
drive shaft.
