Mid-Mount Z Service Manual 7 - 27
ELECTRICAL SYSTEMS
Purpose
Senses the position of the parking brake handle.
Insures that the parking brake is applied on start up
and that the parking brake is released before operating
the unit.
How It Works
When the brake is applied, both sets of contacts are
closed. The contacts connected to the light blue wires
are part of the interlock circuit and must be closed to
provide ground for the starter solenoid. The contacts
connected to the green wires must be open (brake
released) when the control levers are in the operating
position (in) or a ground signal is provided to the
ignition kill terminal to shut down the engine.
Testing
Connect an ohmmeter across each pair of contacts in
turn. When the switch plunger is out, the circuit is open.
When the plunger is in, the circuit is closed.
Brake Switch
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