Service Manual

Switch Part Numbers
Brake/PTO Switch 88-9931
Purpose
NC2 Used as part of the safety interlock circuit, it is typically used to monitor the
NOS position of the PTO or brake lever.
SPDT Switch How It Works
(at rest) 10081 This SPDT microswitch has three terminals. The lever is spring loaded in the
“up” position. When the lever on top of the switch is pushed, continuity
switches from COM 1 and NC2, to COM 1 and N03.
Testing
1. Disconnect the switch from the harness.
2. Verify the conditions in the table.
10180
Switch
Part Numbers
lgnition 88-9830
Purpose
This component provides the proper switching for the starter, ignition, PTO,
How It Works
Detents inside the switch give it three positions: off, run and start. The start
position is spring loaded
so the cylinder automatically returns to run once the
A safety and accessory circuits.
Y
key is released.
X
Ignition Switch Note: The letters stamped on the terminals may be incorrect.
Testing
1. Disconnect the switch from the wiring harness.
2. Verify the following conditions in the table.
3. Check each of the terminals to case ground. None should show continu-
ity.
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