The photo shows an example of an improper device attached
between a trailer and tow vehicle that may create a dangerous
condition for towing a boat. Devices like the one shown in the
photo may be built or marketed with the idea of improving stability
in towing, but instead, devices of this nature may create a very
unstable condition in which control of the trailer may be lost
during towing. The MasterCraft trailer was designed and built to be
attached directly to the tow vehicle, and the trailer should only be
attached in that manner. This is especially critical in maintaining
the proper weight balance, which is described in more detail in this
section of the Owner’s Manual.
Trailer sway control devices that restrict the operation of
the actuator MUST NOT be used. These devices can limit the
eectiveness of the trailer brakes.
Safety Cables
The safety cables on a MasterCraft trailer provide added security
so that the trailer will not become detached from the tow
vehicle when underway. These cables conform to the Society of
Automotive Engineers (SAE) J684 standard for trailer coupling
and hitches automotive type. If it ever becomes necessary to
replace these cables, ensure that the replacement cables meet
the SAE J684 standard.
Failure to properly attach the safety cables and brake actuator
break-away cable between the trailer and the tow vehicle may
result in a runaway trailer if the trailer coupler becomes detached
from the hitch. This may cause serious injury, death and/or
property damage.
The strength rating of EACH safety cable must be equal to or
exceed the trailer’s GVWR (Gross Vehicle Weight Rating).
Before each trip, ensure that the safety cables are correctly
attached between the tow vehicle and the trailer. Secure the
breakaway cable to the bumper or frame of the tow vehicle as close
to center as possible but do not attach to the safety cables.
As noted above, the trailer hitch should provide a place for
attaching safety cables, through
holes or rings on both sides
of the hitch ball. It is strongly
recommended, and most states
require, that the cables be crossed
under the trailer tongue (e.g., the
cables on the left side of the trailer
tongue should be attached to the
hole or ring on the right side of the
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