Retrofit The SS Retrofit Cam for the Nautilus 4-Way Neck Machine is merely part of a complete retrofit package for this exercise. Also needed is a deck. Only the drawings for this deck are available from SuperSlow® Systems because it is an impractical product to construct, fit, and ship to a customer. The customer is better off to have a local cabinet maker or plastics fabricator build the pedestal to his machine on site.

Also needed for the complete retrofit of the 4-Way is a thicker seat. This is performed by the customer in the field. We can sugggest a supplier who will do this inexpensively. By replacing the wood in the stock, 2-inch-thick seat upholstery with a 4-inch block, the starting height is such that when a small woman pulls the seat up for axial alignment, she does not experience disconcerting instability due to the seat being at the perilous end of its telescopicy. And with the pedestal, her feet are not dangling to add another dimension to her instability. Realize that thickening the seat may make the adjustment inadequately low for extremely large torsos.

With the face pads held in the vertical position, it is also desirable to trim these pads so that their lower edges are approximately flush with their mating bracket. Once trimmed, the lower edges of these pads do not curtail as much of the range of neck motion, particularly in the extension exercise. We can suggest a supplier to do this for you.

One more refinement: the seat post needs position numbers stamped at one-inch intervals. 3/8-inch high numbers are recommended placed on machined hashmarks at the one-inch intervals.

The SuperSlow® Product for this machine comes with a sealed roller bearing installed in the cam. An open bearing is supplied to support and articulate the opposite end of the movement arm. If properly aligned and installed this open bearing does not justify a sealed replacement. Keflar conversion is also supplied and requires some modest tube cutting to complete.

Reengineered Machine When purchasing an entire 4-Way Neck machine from SuperSlow® you get the alterations explained above plus a few more. As with all frames the machine is powder coated. The chain drive is converted to Keflar. The #80 weight stack is converted to a #150 stack. But most special of all, it is redesigned with a refined cam, recounterweighted movement arm as well as a fixed bodytorque counterweight for the skull. These last additions are not possible to include in a retrofit package for the field. The pedestal is supplied made of black Starboard.