Traction Neutral Switch; Diode Assembly - Toro Reelmaster 7000 Service Manual

Traction Neutral Switch

The traction neutral switch is closed when the traction
pedal is in the neutral position and opens when the pedal
is depressed in either direction. The switch is located on
the right side of the piston (traction) pump (Fig. 47).
Testing
Before disconnecting the traction neutral switch for test-
ing, the switch and its circuit wiring should be tested as
a TEC input with the Diagnostic Display (see Diagnostic
Display in the Troubleshooting section of this chapter).
If the Diagnostic Display verifies that neutral switch and
circuit wiring are functioning correctly, no further switch
testing is necessary. If, however, the Display determines
that neutral switch and circuit wiring are not functioning
correctly, proceed with test.
To test the traction neutral switch, make sure that the
ignition switch is in the OFF position and the key is re-
moved from the switch. Disconnect the wire harness
connector from the neutral switch and connect a multi-
meter across the two (2) switch terminals. With the en-
gine turned off, slowly push the traction pedal in a
forward or reverse direction while watching the multime-
ter. There should be indications that the traction neutral
switch is opening and closing. Allow the traction pedal
to return to the neutral position. There should be conti-
nuity across the switch terminals when the traction ped-
al is in the neutral position.

Diode Assembly

The engine wire harness contains a diode that is used
for circuit protection from voltage spikes when the en-
gine starter solenoid is de--energized. The diode plugs
into the wiring harness near the starter motor (see En-
gine Wire Harness Drawing in Chapter 9 -- Foldout
Drawings).
Diode Test
The diode (Fig. 48) can be individually tested using a
digital multimeter (diode test or ohms setting) and the
table to the right.
Electrical System
See Piston Pump Control Assembly in Chapter 4 -- Hy-
draulic Systems for disassembly and assembly proce-
dures for the neutral switch.
1. Piston (traction) pump
1
1. Diode
2. Male terminal
Multimeter
Red Lead (+)
on Terminal
Female
Male
Page 5 - - 34
Figure 47
2. Neutral switch
Figure 48
3. Female terminal
Multimeter
Black Lead (- -) Continuity
on Terminal
Male YES
Female
Reelmaster 7000
2
1
2
3
NO