Engine Stop Relay - Toro Greens Aerator Service Manual

Engine Stop Relay

The Greens Aerator uses a relay for grounding the en-
gine magneto and thus, stopping the engine. This relay
is located under the console (Fig. 7).
Testing
NOTE: Prior to taking small resistance readings with a
digital multimeter, short the meter test leads together.
The meter will display a small resistance value (usually
0.5 ohms or less). This resistance is due to the internal
resistance of the meter and test leads. Subtract this val-
ue from from the measured value of the component you
are testing.
1. Verify coil resistance between terminals 85 and 86
with a multimeter (ohms setting). Resistance should be
from 70 to 95 ohms.
2. Connect multimeter (ohms setting) leads to relay ter -
minals 30 and 87. Ground terminal 86 and apply +12
VDC to terminal 85. The relay should make and break
continuity between terminals 30 and 87 as +12 VDC is
applied and removed from terminal 85.
3. Disconnect voltage from terminal 85 and multimeter
lead from terminal 87.
4. Connect multimeter (ohms setting) leads to relay ter -
minals 30 and 87A. Apply +12 VDC to terminal 85. The
relay should make and break continuity between termi-
nals 30 and 87A as +12 VDC is applied and removed
from terminal 85.
5. Disconnect voltage and multimeter leads from the
relay terminals.
Electrical System
86 87A
85
Page 5 – 8
Figure 7
1. Engine stop relay
87
86
30
Figure 8
Greens Aerator
1
87
87A
85
30