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Every pull on the gunwale jacks adjusts the arc (trim) of your TRAK. Depending on which side you adjust, the boat will pull
in that direction at your command. This technological advancement has its roots in aircraft technology and works on the
same principal as the wing of an airplane.
Increasing the tension on one side will arc the kayak in the opposite direction: the right-side gunwale jack arcs the kayak
to the left, and the left-side gunwale jack arcs the kayak to the right. To increase the arc using a TPS gunwale jack, simply
pull the handle like you would on the keel jack. The more times you pull, the more it adjusts.
Must I adjust each jack to its the maximum to use it?
No. You can incrementally adjust all three jacks to suit the conditions. A few pulls creates minor adjustments. Several pulls
will more signicantly adjust the shape of your TRAK. Release the tension, and TRAK goes back to its ‘normal’ shape.
Can I use the keel and the gunwale jacks at the same time?
Yes. The TPS Jacks can be used in any combination and to any degree, all at the same time. Meaning you do not have
to equalize tension on the other two jacks when you use one. Every pull on a jack after the rst two or three pulls
(remember, the rst few are used to tighten up the PolyTRAK shell) will begin to change the shape either on the keel or
gunwales of the kayak.
For example: you could adjust the left gunwale TPS Jack with 4 pulls, the keel TPS Jack 12 pulls and the right gunwale TPS
Jack 3 pulls. Any combination of the 3 TPS Jacks that gives you the desired hull shape you need for optimum paddling
performance.
Can I over-adjust the jacks and harm my TRAK?
No, but use common sense. It is ok to max out the TPS Jack; nothing bad will happen. The PolyTRAK shell will not burst,
the jacks will not break.
The TPS Jacks have a built-in limit that prevents over-adjustment. As they reach their limit, the pulls will become
increasingly more dicult until nally the handle will be loose and there is nothing left but air. Roughly 20 pulls of a TPS
Jack will max them out. All 3 TPS Jacks can also slide down and out of the way to allow for extra room in the cockpit, the
entire TPS Jack can rotate up or down in the tubes.
Which jack is which?
Doesn’t matter. All three TPS jacks are exactly the same, are interchangeable and work the same way.
What kind of jacks are they?
Each TPS Jack is a self contained hydraulic jack, meaning there is hydraulic uid in the body of the jack. They are well
sealed, rugged and warranty guaranteed!
Straight trim
Adjusted trim
B
