6-7Z Master 597 Diesel Series Service Manual
6
Testing
This single pole plunger (normally open) type switch
has two terminals. When the motion control handles
are in the neutral position (handles in the out position),
it pushes on the plunger, closing the contact and
connecting the terminals (Fig. 352).
Fig 352 DSC-2527
1. Disconnect the switch from the wiring harness.
2. Using a VOM or test light, check rst to ensure there
is no continuity between the terminals, plunger out.
3. With the plunger pushed in, there should be
continuity between the terminals.
Fig 353 DSC-2525
The park brake switch is located on the left side, below
the left motion control handle (Fig. 353).
The purpose of the brake switch is to ensure the
machine is in neutral and the parking brake is applied
before attempting to start the machine.
Purpose
PARK BRAKE SWITCH
ELECTRICAL
Location
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