Parking Brake Switch - Toro Reelmaster 7000-D Service Manual

Parking Brake Switch

The parking brake switch is a normally open proximity
switch. The parking brake switch is attached to the bot-
tom of the RH brake pedal (Fig. 44).
When the parking brake is not applied, the parking brake
detent is positioned near the target end of the parking
brake switch so the switch is closed. The parking brake
detent is moved away from the switch when the parking
brake is applied causing the switch to open. The parking
brake switch is an input used by the Toro Electronic Con-
troller (TEC) to manage various machine functions.
Testing
The parking brake switch and its circuit wiring can be
tested as a TEC input using the InfoCenter Display (see
InfoCenter Display in this chapter). If testing determines
that the switch and circuit wiring are not functioning cor-
rectly, proceed with the following test procedure:
1. Park machine on a level surface, lower cutting units,
engage parking brake and stop engine. Remove key
from ignition switch.
2. Disconnect wire harness electrical connector from
the parking brake switch.
3. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the connector termi-
nals.
4. When the parking brake is released (brake not ap-
plied), there should be continuity (closed) between the
switch terminals.
5. When the parking brake pedal is depressed (brake
applied), there should not be continuity (open) between
the switch terminals.
6. Replace parking brake switch if testing determines
that it is faulty.
NOTE: When installing the parking brake switch to the
brake pedal, place switch plate tab into switch mounting
hole that is closest to target end of switch (Fig. 44
and 45).
7. If the parking brake switch tests correctly and a cir-
cuit problem still exists, check wire harness (see Electri-
cal Schematic and Wire Harness Drawings in Chapter
10 − Foldout Drawings in this manual).
8. After testing is completed, connect harness electri-
cal connector to the parking brake switch.
Electrical System
3
4
5
1. RH brake pedal
2. Brake detent
3. Carriage screw
1. Brake switch
Page 6 − 46
1
2
6
Figure 44
4. Switch plate
5. Parking brake switch
6. Lock nut
1
Figure 45
2. Switch target area
Reelmaster 7000−D
2