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TOWINg
Controlling Sway or Fishtailing
Sway or fishtailing is the sideways action of a trailer caused by external
forces. It is common for travel trailers to sway in response to strong winds,
B
crosswinds, when passed by or passing a semi-tractor and trailer, or driving
downhill.
Warning:
Excessive sway or fishtailing of your travel trailer
can lead to the rollover of the trailer and tow vehicle. Serious injury
or death can occur. It is important that you read and understand the
information in this section.
Sway or fishtailing of your recreation vehicle can be controlled and is primarily
impacted by four factors:
•
Equipment
•
Tongue weight
•
Driving
•
Corrective measures
Equipment – When hitched together, the trailer and the tow vehicle must be
level. The tires of both the trailer and tow vehicle should be in good condition
and inflated to the pressure recommended as noted on the exterior of the
trailer and in the owner's manuals of the trailer and tow vehicle.
Your trailer brakes should work in synchronization with your tow vehicle
brakes. Never use your tow vehicle or trailer brakes alone to stop the
combined load. Your brake controller must be set up according to the manu-
facturer's specifications to ensure proper synchronization between the tow
vehicle and the trailer. Additionally, you may have to make small adjustments
occasionally to accommodate changing loads and driving conditions.
Also, we recommend a friction sway damper or hitch with built-in sway
control be provided for your unit. Please consult your dealer regarding this
equipment.
Tongue weight – The tongue weight should be between 10% to 15% of the
total travel trailer weight. See page B-5 of this manual regarding the proper
weight distribution of your recreation vehicle.
Driving – This is the most important component. The tendency for the vehicle
to sway increases with speed therefore, obey all speed limits and reduce
speed during inclement weather or windy conditions.
Corrective measures – If sway occurs the following techniques should be
used:
B - 12
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