Appendix A - Optional Speed Sensor Mounting Installation - micro-trak Calc-An-Acre II Reference Manual

Appendix A
Optional Speed Sensor Mounting Installation
Implement Wheels
1. Secure magnets mechanically or with epoxy.
2. Rigidly mount sensor mounting bracket to the wheel
assembly. Cut or bend "L" bracket as required for proper
positioning of sensor.
3. Install sensor, adjust to correct spacing (1/4" to 1/2 "
or 6 to 13 mm is recommended), and secure with 3/8"
locking nuts. See Illustration at right.
Front Tractor Wheel
1. Magnets may also be secured with a cable tie and an
adhesive such as epoxy.
2. Mount the speed sensor bracket to a part of the wheel
assembly that does not change position to the hub
when the wheels are turned. If the "L" bracket provided
cannot be bent and mounted to properly position the
sensor, make a bracket similar to the one shown at right.
3. Install sensor, adjust to correct spacing (1/4" to 1/2 "
or 6 to 13 mm is recommended), and secure with 3/8"
locking nuts. See Illustration below.
Speed Sensor
Hub
Top View
Tap thread for
bolts or weld
Cable Tie
FABRICATED BRACKET
Optional section
of hose to
protect cable
Sensor
3/8" hole
for sensor
3/8" nut
Speed Sensor
and Bracket
ATV Wheels
Two mounting examples are illustrated.
1. Using one cable tie (ribbed side toward magnets), secure
two magnets to the wheel hub so they are exactly
opposite each other. Alternate the magnets' polarities.
2. Cut and bend sensor mounting bracket as needed and
rigidly mount.
3. Insert sensor, adjust spacing (1/4" to 1/2" or 6 to 13 mm)
and secure with 3/8" locking nuts.
CAUTION: Make sure valve stem cannot make contact with
sensor or bracket.
Cut Bracket
to Clear Rim
Magnet
Plastic
Cable
Tie
3/8" nut
Alternative ATV
Wheel Mount
25
Speed Sensor
Cable Tie
Sensor Bracket
ATV Wheel Mount
Axle
Nut
Swing Arm
Hub
Cut and Bend
Rim
Bracket as
Required
Magnet
Hub
Rim
¼" Bolts,
Lockwashers
and Nuts
Metal
Hose
Clamps
Fork
Tube
Axle