Toro 08159SL Groundsmaster 5900 5910 Service Manual

Component Testing
For accurate resistance and/or continuity checks, elec-
trically disconnect the component being tested from the
circuit (e.g. unplug the wire harness connector from the
ignition switch  before doing a  continuity check of  the
switch).
CAUTION
When testing electrical components for continu-
ity with a multimeter (ohms setting), make sure
that power to the circuit has been disconnected.
Ignition Switch
The ignition (key) switch has three positions (OFF, RUN
and START). The ignition switch is located on the con-
sole arm (Fig. 55).
Testing
1.
Before disconnecting the ignition switch for testing,
2
the switch and  its circuit wiring should be  tested as a
TEC controller inputwiththe InfoCenter Diagnostic Dis-
play (see Info Center Display in this section).
1
2.
If the Diagnostic Display verifies that ignition switch
and circuit  wiring are functioning  correctly, no further
switch testing is necessary.
3.
switch and circuit wiring  are not functioning correctly,
If  the Diagnostic  Display determines  that  ignition
Figure 55
2.
test ignition switch.
1.
Console arm
Ignition switch
4.
Make sure ignition switch is OFF. Remove key from
ignition switch.
RUN
5.
switch (see Console  Arm Disassembly in  the Service
and Repairs section of Chapter 7 -- Chassis).
Disassemble console arm to gain access to ignition
45
o
45o
OFF
START
6.
56.
charttotheright.Withtheuseofamultimeter(ohmsset-
ting), the switch functions may be  tested to determine
whether continuity exists between the various terminals
foreachposition.Verifycontinuitybetweenswitchtermi-
nals. Replace switch if testing identifies a faulty switch.
The switch terminals are marked as shown in Figure
The circuit logic of the ignition switch is shown in the
A
F
B
C
E
D
FRONT VIEW
REAR VIEW
Figure 56
NONE
7.
ter testing.
Connect the wire harness connector tothe switch af-
POSITION
OFF
CIRCUIT
8.
If switch tests correctly and circuit  problem still ex-
RUN
B + C + F,  D + E
A + B + C
ists, check wire harness (see Electrical Schematics and
Wire Harness Drawings in Chapter 10 -- Foldout Draw-
ings).
START
9.
sembly in the Service and Repairs section of Chapter 7
Assemble console arm cover (see Console Arm As-
--
Chassis).
Electrical System
Page 5 -- 32
Groundsmaster 5900/5910
Product Specification
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- 374 pages
Document TypeService Manual
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