Greensmaster 3300/3400Page 6 -- 36Electrical System
Neutral and Mow Switches
The neutral and mowswitches are normally openprox-
imity switchesthatmount tothe console assembly(Fig.
42).The sensingplate fortheseswitchesis atab onthe
functional control lever. The Toro Electronic Controller
(TEC) monitors the operation of the neutral and mow
switches.
When the functional control lever is in the neutral posi-
tion,thetabontheleverispositionednearthetargetend
oftheneutralswitchcausingtheswitchtoclose.Thetab
on the functional control lever is moved away from the
neutral switch when the lever is in either the mow or
transport position causing the switch to be in its normal
open state.
Whenthe functionalcontrolleveris inthemowposition,
the tab on the lever is positioned near the target end of
the mow switch causing the switch to close. The tab on
thefunctionalcontrolleverismovedawayfromthemow
switchwhentheleveris ineither theneutralortransport
position causing the switch to be in its normal open
state.
Testing
1. Park machine on level surface, lower cutting units,
stop engine and remove key from ignition switch.
2. Before disconnecting the neutral or mow switch for
testing,the switch andits circuitwiring shouldbe tested
as a TEC electrical input using the Diagnostic Display
(see Diagnostic Display in the Troubleshooting section
of this chapter). If input testing verifies that the switch
and circuit wiring are functioning correctly, no further
switchtestingisnecessary.If,however,inputtestingde-
termines that the switch and circuit wiring are not func-
tioning correctly, proceed with the following switch
testing procedure.
3. Remove console cover from console assembly to
gain access to neutral and mow switches (see Control
Console Disassembly in the Service and Repairs sec-
tion of Chapter 7 -- Chassis). Locate switch that is to be
tested (Fig. 42).
4. Turnignition switchto the RUNposition (do notstart
engine) and check LED on cable end of switch.
A. The neutral switch LED should be illuminated
only when the functional control lever is in the neu-
tral position. The neutral switch LED should not be
illuminated when the functional control lever is in ei-
ther the mow or transport position.
B. ThemowswitchLEDshouldbeilluminatedonly
when the functional control lever is in the mow posi-
tion.ThemowswitchLEDshouldnotbeilluminated
whenthefunctional controllever isin eitherthe neu-
tral or transport position.
5. If the tested switch LED did not function correctly:
A. Make sure that switch is properly adjusted (see
Neutral and Mow Switches in the Adjustments sec-
tion of this chapter). If necessary, adjust switch and
return to step 4 above.
B. Make sure ignition switch isOFFand disconnect
theswitchconnectorfromthemachinewireharness.
C. Using a multimeter, verify that the machine wire
harness connector terminal for black wire is closed
(continuity) to ground.
D. Turn ignition switch to the RUN position ( do not
start engine) and verify with a multimeter that ma-
chine wire harness connector terminal for pink wire
has system voltage (12 VDC) present.
E. If black wire is closed to ground, pink wire has
systemvoltagepresentandswitchLEDdidnotfunc-
tion correctly (step 4 above), replace tested switch.
Adjustswitchafterinstallation(seeNeutralandMow
SwitchesintheAdjustmentssectionofthischapter).
6. After switch testing is complete, make sure that
switchconnector isplugged intomachinewire harness.
Installconsolec over (see ControlConsole Assemblyin
the Service and Repairs section of Chapter 7 -- Chas-
sis).
Figure 42
1. Functional lever tab
2. Mow switch
3. Neutral switch
2
1
3
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