Safety Relays - Toro 04384 Service Manual

Safety Relays

Several safety relays are used on Greensmaster
3250--D machines. The relays are attached to frame
brackets under the operator seat (Figs. 24 and 25). A tag
on the wire harness connector can be used to identify
the relays.
Relay Testing
1. Disconnect wire harness connector from relay that is
to be tested.
NOTE: Use illustration in Figure 26 to identify relay ter-
minals.
2. 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.
3. 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 ap-
plied and removed from terminal 85.
4. Disconnect voltage from terminal 85 and multimeter
lead from terminal 87.
5. 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.
6. When testing is complete, disconnect voltage and
multimeter leads from relay terminals.
7. Replace relay if testing determines that it is faulty.
8. Connect wire harness connector to relay.
Electrical System
3
1. Fuse block
2. Backlap relay
SAFETY
RELAY
LOCATION
FRONT
1. Run relay
2. High temp relay
3. Mow relay
4. Start relay
Page 5 - - 22
1
2
Figure 24
3. Relay bracket
4 5
3 6
2 7
RIGHT
1 8
Figure 25
5. Raise relay
6. Lower relay
7. Joystick relay
8. Start interlock relay
86 87A 87
85 30
Figure 26
Greensmaster 3250--D