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Cub Cadet Commercial Z-Wing

30.6. To stop the engine without an occurrence of

after-fire, it is necessary to deprive the after-fire

solenoid of power from the charging circuit as

well as from the key switch.

30.7. This is done by grounding-out the charging cir-

cuit through the key switch connection to G ter-

minal.

30.8. Through the M terminal, the magneto finds

ground by its connection to the G terminal with

the key in the OFF position.

31. ELECTRICAL: ENGINE-STOPPING SAFETY

CIRCUITS

31.1. The object of the engine stopping safety circuits

is to prevent the mower from running if an inher

ently unsafe condition exists.

31.2. Unsafe conditions that will cause engine shut-

down include:

• Engine running with the seat unoccupied and the

parking brake released.

• Engine running with the seat unoccupied and the

cutting deck engaged.

31.3. The seat safety switch is central to the system.

See Figure 31.3.

NOTE: Seat switch plug defaults to closed circuit

if disconnected.

Figure 31.3

Seat safety switch:

normally closed

Plug defaults to closed

circuit if disconnected

31.4. The yellow wire that connects the M terminal on

the key switch to the ignition modules connects

to the seat switch. The paired yellow w/white

trace wires from the second terminal on the seat

switch extend to the Brake switch and the PTO

switch.

31.5. If the seat is empty (contacts closed) a ground

path may be completed through the PTO switch.

See Figure 31.5.

31.6. If the seat is empty (contacts closed) a ground

path may be completed through the brake

switch.

See Figure 31.6.

Figure 31.5

M B

L G

Battery

A-F

Sol.

PTO Switch: ON

Key Switch:

RUN

Ignition

Module

Seat

Switch:

Empty

Figure 31.6

M B

L G