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Note:NOTE:TheenginewillnotcrankoverwhenthePTOswitchisinthe

ONposition.

ThePTOswitchprovidesbatteryvoltagefromtheignitionswitchtotheparking

brakeswitchandtheneutralswitchesaspartofthesafetyinterlocksystem.

PTOSwitchTesting

1.Removethecontrolpanelfromtherightconsole.

2.DisconnectthePTOswitchfromthewireharness.

3.WiththeswitchintheONposition(buttonpulledOUT).

4.Usingadigitalmulti-metersettotheOHMorContinuitysetting,verifythe

following:

•Pin2and5shouldhavecontinuity(closed)

•Pin1and4shouldhavecontinuity(closed)

•Pin1and7shouldNOThavecontinuity(open)

•Pin2and8shouldNOThavecontinuity(open)

g331212

Figure93

5.WiththeswitchintheOFFposition(buttonpushedIN)

•Pin1and7shouldhavecontinuity(closed)

•Pin2and8shouldhavecontinuity(closed)

•Pin1and4shouldNOThavecontinuity(open)

•Pin2and5shouldNOThavecontinuity(open)

ElectricPTOClutch

ThePTOclutchelectronicallycontrolstheengagementanddisengagement

ofthePTOpulley(deckbelt).

ThePTOclutchiscomposedofthreemajorcomponents:

•Coil

•Clutchplate

•Frictionplate

Theclutchplatealwaysturnswiththeengine(crankshaft).Theeldisacoilof

wireonanironcorewhichbecomesanelectromagnetwhenpowerisapplied.

Thefrictionplateistheonlypiecethatmovesverticallyonthecrankshaft.Itis

normallyspringloadedsothatitisnotincontactwiththeclutchplateandis

TitanServiceManual

Page8–9

Electrical:ServiceandRepairs

3438-774RevA

Toro TITAN User Manual

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