Safety Relays - Toro Greensmaster 3250-D 04383 Service Manual

Safety Relays

Two styles of safety relays have been used on Green-
smaster 3250−D machines. Later production machines
(after serial number 250000000) have a different relay
terminal arrangement than relays on earlier machines
(Fig. 4). Relay operation is identical regardless of termi-
nal layout.
1. Verify coil resistance between terminals 86 and 85
with a multimeter (ohms setting). Resistance should be
from 80 to 90 ohms. There should be continuity between
terminals 87A and 30.
2. Connect multimeter (ohms setting) leads to relay
terminals 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 ap-
plied and removed from terminal 85.
3. Disconnect voltage from terminal 85 and multimeter
lead from terminal 87.
4. Connect multimeter (ohms setting) lead to relay ter-
minal 30 and 87A. Apply +12 VDC to terminal 85. The
relay should break and make continuity between termi-
nals 30 and 87A as 12 VDC is applied and removed from
terminal 85.
5. Disconnect voltage from and multimeter leads from
relay terminals.
Electrical System (Rev. C)
87
87A
86
30
EARLY PRODUCTION
86
85
SAFETY
RELAY
LOCATION
FRONT
1. Run relay
2. High temp relay
3. Mow relay
4. Start relay
Page 5 − 10 Rev. H
85
LATER PRODUCTION
87A 87
30
Figure 4
4 5
3 6
2 7
RIGHT
1 8
Figure 5
5. Raise relay
6. Lower relay
7. Joystick relay
8. Safety (neutral)
Greensmaster 3250−D
relay