Toro 04470 Service Manual

Greensmaster 3250--D
Page 5 -- 22
Electrical System
Safety Relays
Several s afety relays are used on Greensmaster
3250--D machines. The relays are attached to frame
bracketsundertheoperatorseat(Figs.24and25).Atag
on the wire harness connector can be used to identify
the relays.
Relay Testing
1. Disconnectwireharnessconnectorfromrelaythatis
to be tested.
NOTE: Use illustration in Figure26 to identify relay ter-
minals.
2. Verify coil resistance between terminals 86 and 85
with a multimeter (ohms setting). Resistance should be
from80to90ohms.Thereshouldbecontinuitybetween
terminals 87A and 30.
3. Connectmultimeter(ohmssetting)leadstorelayter-
minals 30 and 87. Ground terminal 86 and apply +12
VDC to terminal 85. The relay should make and break
continuitybetweenterminals30and87as12VDCisap-
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-
nals30and87Aas12VDCisappliedandremovedfrom
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.
Figure 24
1. Fuse block
2. Backlap relay
3. Relay bracket
1
2
3
Figure 25
1. Run relay
2. High temp relay
3. Mow relay
4. Start relay
5. Raise relay
6. Lower relay
7. Joystick relay
8. Start interlock relay
RIGHTFRONT
1
2
8
7
3
4
6
5
SAFETY
RELAY
LOCATION
Figure 26
86
85
87A 87
30

Toro 04470 Specifications

General

Brand	Toro
Model	04470
Category	Lawn Mower
Language	English