Service Manual

GLOSSARY
3-14
Demystifi ction
Glossary
GLOSSARY
Switch, Key
Purpose
This component provides the proper switching for
the starter, ignition, accessories, and safety circuits
(Figure 18).
How It Works
Detents inside the switch give it 4 positions: STOP,
REVERSE CAUTION, NORMAL MOWING, and
START. The START position is spring loaded so the
cylinder automatically returns to NORMAL MOWING
once the key is released.
Testing
1. Disconnect the switch from the wiring harness.
2. Verify that continuity exists between the terminals
listed for each switch position. Verify that there is
NO continuity between terminals not listed for the
switch position (Figure 19).
Position
Condition
Off
G+M+A1
Reverse Caution (Run 1)
B+A 1 & L+A 2
Normal Mowing (Run 2)
B+A 1
Start
B+S+A 1
Switch, Reverse
Location
Units equipped with constant velocity
transmissions (CVT)
The reverse switch is attached to the underside of the
tractor next to the reverse lever (Figure 20).
Figure
1
8
keysw
L
G
S
M
A1
A2
B
Figure
1
9
swign
Figure
20
trevsw