DMF RW-1016, Parts & Service Manual

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DIVERSIFIED METAL FABRICATORS, INC. RW-1016
© 2017 DMF, Inc. All Rights Reserved. 4-17
4.7 EXHAUST MODIFICATION
4.7.1 General Information
 Installation of RW-1016 Railgear often requires modification of the rear section of the
exhaust system.
 Guidelines for several popular chassis and engine configurations are included below.
 General recommendations include:
o
Modifying the exhaust system in accordance with body builder guidelines
published by chassis manufacturer, particularly on diesel model.
o
Maintaining 4” minimum clearance between any portion of the exhaust system
and the rear vehicle tires.
o
Maintaining 3/4” minimum clearance between any portion of the exhaust
system and the rear Railgear when in both the deployed and stowed positions.
o
Modifying and relocating hangers and brackets such that they do not restrict
growth along the length of the exhaust system due to thermal expansion.
o
Modifying or relocating mud flaps and brackets to provide adequate clearance to
hot exhaust components.
o
Any factory heat shields protecting vital components should be retained (modify
as necessary).
o
Use smooth transitions in pipe sections to avoid increasing exhaust backpressure.
4.7.2 2017+ Ford F-2/350 w/ 6.2L Gas Engine
This section outlines best practices for exhaust modification on 2017 model year and newer F-
250 and F-350 trucks with a 6.2L gas engine for use with RW-1016 rear Railgear.
4.7.3 2017+ Ford F-2/350 w/ 6.7L Diesel Engine
This section outlines best practices for exhaust modification on 2017 model year and newer F-
250 and F-350 trucks with a 6.7L diesel engine for use with RW-1016 rear Railgear. Please see
Ford SVE Bulletin Q-253 (https://www.fleet.ford.com/truckbbas/topics/qvmp.html) for
additional information regarding Ford’s recommendations regarding exhaust modifications on
these models.
After installation of railgear, DMF recommends following the basic exhaust modification steps
below. Depending on body configuration, it may be necessary to raise the back end of the
truck to gain sufficient clearance to remove and install exhaust.