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11
2.
The spacing between the stroke sensor and the magnet assembly is critical. If the
magnet passes too far from the sensor the sensor may fail to register every stroke,
resulting in low readings. If the magnet is too close to the sensor, it may strike the
sensor and knock one or both out of place.
Because the distance between the seat plate (to which the magnets will be attached)
and the deck (to which the sensor will be attached) varies considerably from shell to
shell, you should start by measuring this distance. Refer to FIG 2.
•
If the distance measured as in FIG 2 is between 7/8” and 1 1/8” you may mount the
sensor and magnet with no further adjustment.
•
If the distance measured as in FIG 2 is GREATER than 1 1/8” then you will need to
make a spacer of appropriate thickness. You may choose to shim the sensor or the
magnet, whichever is easier. DO NOT use any magnetic material for your shim.
•
If the distance measured in FIG 2 is LESS than 7/8” then you will have to remove
material from either the seat or the deck OR try mounting the magnet on the upper
side of the seat plate.
You can install the sensor and magnets semi-permanently by using the 3M VHB (Very
High Bond) tape supplied. Should you wish to make a temporary installation, use
the screws provided and DO NOT peel away the protective layer from the VHB tape.
FOLLOW STEPS 3-4 FOR DOUBLE SIDED TAPE INSTALLATION OF THE SENSOR. FOR
THE MOST SECURE INSTALLATION USE TAPE AND SCREWS.
3.
Check that the sensor cable is routed conveniently. Use a solvent to clean the area of the
deck to which you will attach the sensor. This is essential for a good bond. Peel away the
protective layers of the VHB double-sided tapes, and firmly press the sensor onto the
cleaned area of the deck.
4.
Using two cable clips provided, secure the sensor wire.
PLEASE NOTE
: The sensor must be installed at the CENTRE of the seat travel. If the sensor is too close to
either end of the seat travel, the COX BOX may indicate ONE-HALF the correct stroke rate.It is essential
that the holes in the magnet assembly pass directly over the holes in the sensor. The dashed horizontal
line in each figure indicates the correct alignment. If the sensor and magnet are installed offset from
the centerline of the seat as in Fig. 1b, the holes of the magnet assembly MUST still pass directly over
the holes of the sensor.
