Parking Brake Switch - Toro Groundsmaster 5900 Series Service Manual

Parking Brake Switch

Testing
Electrical System: Component Testing
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1. Operator control console
The parking brake switch is located on the console arm
brake comes on automatically when the engine is not running. For service or
towing, the parking brake can be released while the engine is not running by
using the hydraulic bypass valve and plunger (see machine Operator's Manual).
To engage the parking brake while the engine is running, release the switch
lock and depress the upper portion of the parking brake switch. The switch
illuminates when the parking brake is ON.
The master controller monitors the position of the parking brake switch. Using
inputs from the parking brake switch and the traction pedal position sensor,
the master controller energizes hydraulic solenoid valve S10 in the steering/lift
control hydraulic manifold as necessary.
The parking brake switch and its circuit wiring can be tested as a TEC input using
the InfoCenter Display (see
that a switch and its circuit wiring are not functioning correctly, proceed with
the following test procedure:
1. Park machine on a level surface, lower cutting decks and stop engine.
Remove key from key switch.
2. Turn battery−disconnect switch to the OFF position.
3. Disassemble the console arm to gain access to the switch (see
Arm (page 7–35)).
4. Disconnect machine wire harness connector from the switch being tested.
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2
Figure 226
2. Parking brake switch
InfoCenter Display (page
Figure 227
Back of Switch
Page 6–86
1
(Figure 226). The parking
6–9)). If testing determines
Console
Groundsmaster ® 5900 & 5910
16227SL Rev B