Service Manual

GLOSSARY
Demystification Glossary 3 - 9
3. While the engine is running, move the PTO lever
to the “engage” position, on gear shift models,
move the gear shift lever in reverse, and on Hydro
models, move the forward/reverse pedal to
reverse.
4. The engine should stop.
Testing the KeyChoice™ Reverse Operating
System - Manual PTO System
- Activated
1. Move the PTO lever to the “disengage” position
and move the gear shift lever to neutral on gear
shift models. Depress the clutch/brake pedal on
the Hydro’s.
2. Now start the engine.
3. Move the PTO lever to the “engage” position and
turn the KeyChoice™ key, located around the seat
area.
4. A red light on the dash turns on, indicating the
interlock (Reverse Operating System) is disabled.
5. You should be able to operate the machine in
reverse and the engine/mower will continue to run.
6. Move the PTO lever to the “disengage” position
and the red light should turn off on the dash.
Module, KeyChoice™ Reverse
Operating System (Electric PTO
Clutch)
Purpose
The KeyChoice™ Reverse Operating System Module
(Figure 10) works with the KeyChoice™ switch, PTO
switch, and the reverse switch. It responds to the
reverse switch. If the override switch (KeyChoice™
switch) is not activated and the PTO is engaged, it will
stop the electric PTO clutch.
Figure 10
MVC-385X
How It Works
The KeyChoice™ Reverse Operating System Module
is made up of several components, such as diodes and
relays. When it is connected in the circuit, voltage is
applied to certain terminals of the KeyChoice™
Reverse Operating System module from the PTO
switch, reverse switch, and the override switch, which
energizes certain relays in the module. If voltage is not
applied to proper terminals on the KeyChoice™
Reverse Operating System Module, the electric PTO
clutch will stop.
Glossary