Backlap Switches - Toro Reelmaster 7000-D Service Manual

Backlap Switches

The backlap switches are normally open ball switches
that are in the normal, open state when the backlap lev-
ers are in the mow position. When a backlap lever is in
the backlap position, the switch closes. The backlap
switches are attached to the hydraulic mow control man-
ifold located under the hood (Fig. 48). The backlap
switches are inputs used by the Toro Electronic Con-
troller (TEC) to manage various machine functions.
Testing
The backlap switches and their circuit wiring can be
tested as TEC inputs using the InfoCenter Display (see
InfoCenter Display in this chapter). If testing determines
that the switches and circuit wiring are not functioning
correctly, proceed with the following test procedure:
1. Park machine on a level surface, lower cutting units,
stop engine, engage parking brake and remove key
from the ignition switch.
2. Unlatch and raise hood to allow access to hydraulic
mow control manifold. Locate the backlap switches on
the front of the manifold. Disconnect the harness electri-
cal connector from the backlap switch.
3. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the switch connector
terminals.
4. Turn the backlap lever to the backlap position while
watching the multimeter. Continuity should be made as
the switch closes.
5. Turn the backlap lever to the mow position while
watching the multimeter. Continuity should be broken as
the switch opens.
6. If backlap switch is faulty, replace switch (Fig. 49).
7. If the backlap switch tests correctly and a circuit
problem still exists, check wire harness (see Electrical
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 backlap switches. Lower and se-
cure hood.
Reelmaster 7000−D
1. Mow control manifold
2. Front backlap lever
3. Front backlap switch
5
4
3
2
20 ft−lb
(27 N−m)
1. Mow control manifold
2. Backlap switch (2 used)
3. O−ring
Page 6 − 49
1
2
3
Figure 48
4. Rear backlap lever
5. Rear backlap switch
1
2
Figure 49
4. Dowel
5. Ball
Electrical System
4
5