Component Testing

For accurate resistance and/or continuity checks, elec- trically disconnect the component being tested from the circuit (e.g. unplug the ignition switch connector before doing a continuity check).

NOTE: Electrical troubleshooting of any 12 Volt power connection can also be performed through voltage drop tests without disconnecting the component.

NOTE: See the Perkins 100 Series Workshop Manual for more component testing information.

CAUTION

When testing electrical components for continuity with a multimeter (ohms set- ting), make sure that power to the circuit has been disconnected.

Ignition Key Switch

The ignition (key) switch has four positions (GLOW, OFF, ON, and START). The terminals are marked as shown. The circuitry of the ignition switch is shown in the chart. With the use of a multimeter (ohms setting), the switch functions may be tested to determine whether all circuits are being completed while the key is moved to each position. Verify continuity between switch termi- nals.

 

 

CONTINUITY

POSITION

 

AMONG

 

 

TERMINALS

 

 

50

 

GLOW (3)

19

 

30+19+AC

 

AC

 

 

 

 

17

 

 

 

 

30

 

 

 

50

 

OFF (0)

19

 

NONE

 

AC

 

 

 

 

17

 

 

 

 

30

 

 

 

50

 

ON (1)

19

 

30+AC

 

AC

 

 

 

 

17

 

 

 

 

30

 

 

 

50

 

START (2)

19

 

30+17+50+AC

 

AC

 

 

 

 

17

 

 

 

 

30

 

 

Figure 3

 

Electrical System

Reelmaster 2300±D/2600±D

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Electrical System

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Toro 2600D, 2300-D service manual Component Testing, Ignition Key Switch

2600D, 2300-D specifications

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