Multi Pro 5700 - Toro
Multi Pro 5700 - Toro
Multi Pro 5700 - Toro
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Traction Speed Sensor<br />
The traction speed sensor is attached to the right side<br />
rear wheel motor (Fig. 21). The sensor provides ground<br />
speed information for two (2) options: the <strong>Pro</strong> Control<br />
Electronics and the speedometer kit. It uses a magnetically<br />
based, Hall Effect integrated circuit. As the piston<br />
group in the wheel motor turns, the sensor accurately<br />
senses the movement of the pistons passing the sensor.<br />
The red connector wire (connector terminal A) is the<br />
positive lead, the black wire (terminal C) is the ground<br />
lead, and the white wire (terminal B) is the signal output.<br />
1<br />
2<br />
Testing<br />
1. Make sure ignition switch is off. Remove speed sensor<br />
from machine (see Traction Speed Sensor Removal<br />
in the Service and Repair Section of this Chapter).<br />
IMPORTANT: Incorrect jumper wire connections<br />
during testing can damage the sensor.<br />
2. Using a +12 VDC battery, a multimeter, a 1K ohm resistor<br />
and appropriate jumper wires, connect the battery<br />
and multimeter to the speed sensor using Figure 22 as<br />
a guide.<br />
1. Speed sensor<br />
2. O -ring<br />
3<br />
Figure 21<br />
3. RH wheel motor housing<br />
4. Motor piston group<br />
4<br />
3. Set multimeter to DC volts setting.<br />
4. The multimeter should display very low voltage when<br />
a metal object is held near the sensor tip. The multimeter<br />
should display battery voltage when the metal object is<br />
moved away from the sensor tip.<br />
5. After sensor testing is complete, remove jumper<br />
wires, resistor and multimeter leads from sensor connector.<br />
IMPORTANT: When replacing the sensor, see Traction<br />
Speed Sensor Installation in the Service and<br />
Repair Section of this chapter.<br />
6. Reinstall speed sensor into wheel motor (see Traction<br />
Speed Sensor Installation in the Service and Repair<br />
Section of this Chapter). Reconnect speed sensor to<br />
machine wire harness.<br />
6<br />
7<br />
1K ohm<br />
resistor<br />
+ -<br />
12 VDC<br />
4<br />
5<br />
3<br />
2<br />
1<br />
1. Speed sensor<br />
2. Sensor tip<br />
3. Lock nut<br />
4. Sensor connector<br />
Figure 22<br />
5. Red wire<br />
6. White wire<br />
7. Black wire<br />
Electrical System<br />
Page 5 - 14 Rev. C<br />
<strong>Multi</strong> <strong>Pro</strong> <strong>5700</strong>--D