Toro Reelmaster 3100-D Service Manual page 237

Testing
Reelmaster ® 3100-D/3105-D
20252SL Rev A
1. Park machine on a level surface, lower cutting units, engage parking brake
and stop engine. Remove key from key switch.
2. Remove the cover from control panel to access key switch.
3. Make sure that the key switch is in the OFF position. Disconnect wire
harness connector from key switch.
4. The key switch terminals are identified in
switch is shown in below table. With the use of a multimeter (ohms setting),
the switch functions can be tested to determine whether continuity exists
between the various terminals for each switch position. Verify continuity
between switch terminals.
SWITCH POSITION
OFF
RUN
START
5. Replace key switch if testing determines that it is faulty.
6. If the key switch tests correctly and a circuit problem still exists, check wire
harness.
7. After testing is complete, connect the machine wire harness connector to key
switch. Install cover onto control panel.
Figure 117
NORMAL CIRCUITS
NONE
B + A + I
B + S + I
Page 6–13
and the circuitry of the
OTHER CIRCUITS
NONE
X + Y
NONE
Electrical System: Component Testing