Toro 00062SL Rev I Greensmaster 3250 D Service Manual

Oil Pressure Switch
The switch is located on the front cylinder head  above
the injection pump and governor  assembly. It is a nor-
mally closed switch and opens with pressure.
1
Testing with the engine off
1.
Turn the ignition switch to ON. The oil pressure lamp
should be on.
2.
If the lamp is not on, disconnect the white/red wire
from the switch and ground it to the engine block.
2
3.
If the lamp comes on the switch is bad.
4.
If the lamp does not come on after step 2, check the
indicating circuit (see Electrical Schematic in Chapter 8
− Electrical Diagrams).
Figure 22
1.
Flywheel
2.
Oil pressure switch
Testing with the engine on
1.
If the lamp is on with the engine running, shut off the
engine immediately.
2.
3.
Disconnect the white/red wire from the switch.
Turn the ignition switch to ON. The oil pressure lamp
should go out.
4.
If the light is still on, check for short circuiting in the
indication circuit (see  Circuit Drawings in Chapter  8 −
Electrical Diagrams).
5.
Return ignition switch to OFF and connect the white/
red wire to the switch.
6.
Remove switch and install test gauge in the oil pres-
sure switch port.
7.
Start the engine and check for a minimum of 14 psi
at 1000 RPM. If the engine oil pressure is low, shut off
the engine immediately.
8.
9.
Shut off the engine and remove the test gauge.
If the engine oil pressure is good, replace the switch.
Electrical System (Rev. C)
Greensmaster 3250−D
Page 5 − 18
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- 308 pages
Document TypeService Manual
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
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