Greensmaster Flex 1800/1820/2100/2120Page 5 - 16Electrical System
Interlock Module
The interlock module prevents the engine from starting
unless the traction lever is disengaged. Once the engine
is running, the engine will continue to run with the trac-
tion lever engaged or disengaged as long as the parking
brake latch is not applied. The module also allows the
engine to run if the parking brake latch is applied and
traction is not engaged.
The interlock module controls grounding of the engine
ignition system. When the engine starter rope is pulled,
the engine magneto will begin to create current. The in-
terlock module uses that current through the traction
and parking brake latch switches to determine the state
of the switches. If switch state is correct, the interlock
module opens the magneto to ground circuit so the en-
gine can start and run. Once running, the interlock mod-
ule allows the engine to continue to operate unless the
parking brake latch is a pplied and traction is engaged.
If the engine will not start, perform the following tests to
determine if the interlock module is at fault.
1. Check operation of the engine ignition system (see
Ignition System Operation in this section).
2. Check the operation of both the parking brake latch
and traction switches (see Parking Brake Latch Switch
and Traction Switch in this section). Adjust or replace
switch if necessary.
3. Check wire harness for damage (see Wiring Sche-
matic and Wire Harness Drawings in this chapter). Re-
pair or replace any damaged wire harness components.
4. If the engine ignition system, parking brake latch
switch, traction switch and wire harness all prove to be
operating correctly and engine does not start, replace
interlock module.
1. Interlock module
2. T raction switch
3. Park brake latch switch
Figure 13
1
3
2
Lighting Coil
The engine on Greensmaster Flex machines is
equipped with a lighting coil to provide electrical current
for an optional LED light kit. The coil is located under the
engine flywheel and uses permanent magnets on the
flywheel to operate. The lighting coil has a 12VAC output
that is rated at 15 watts. See the Subaru Service Manual
for additional lighting coil information.
NOTE: If lights are desired on the Flex machine, use
the recommended Toro LED light kit that is available
from your Toro Distributor. Incandescent or halogen
lights will not operate with the engine lighting coil that is
on these machines.
NOTE: If lighting coil output is to be measured with a
multimeter, a load has to be applied to the circuit.
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