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.
87
87A
86
85
1.
Verify coil resistance between terminals 86 and 85
30
with a multimeter (ohms setting). Resistance should be
from 80 to 90 ohms. There should be continuity between
terminals 87A and 30.
EARLY PRODUCTION
LATER PRODUCTION
2.
Connect multimeter (ohms setting) leads to relay
86
85
87A
87
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.
lead from terminal 87.
Disconnect voltage from terminal 85 and multimeter
30
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.
Figure 4
SAFETY
RELAY
4
3
2
5
5.
relay terminals.
Disconnect voltage from and multimeter leads from
LOCATION
6
7
FRONT
RIGHT
1
8
Figure 5
1.
2.
Run relay
High temp relay
5
6
7
8
.
.
.
.
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Electrical System (Rev. C)
Page 5 − 10 Rev. H
Greensmaster 3250−D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Greensmaster 3250 D |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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