Starter Solenoid

NOTE: Prior to taking small resistance readings with a digital multimeter, short the test leads together. The me- ter will display a small resistance value (usually 0.5 ohms or less). This resistance is due to the internal re- sistance of the meter and test leads. Subtract this value from from the measured value of the component you are testing.

1.Make sure engine is off. Disconnect solenoid elec- trical connections.

2.Apply 12 VDC directly across the solenoid coil posts. The solenoid should click. Make sure continuity across the main contact posts is less than 1 ohm.

3.Remove voltage from solenoid coil posts. The sole- noid should click. Make sure reading across the main contact posts is infinity ohms.

4.Resistance across the solenoid coil posts should be

3.1 ohms.

5.Replace starter solenoid if necessary. Reconnect electrical connections to solenoid.

SOLENOID COIL

TOP VIEW

POSTS

SIDE VIEW

MAIN CONTACT

POSTS

SOLENOID COIL

POSTS

WIRING

DIAGRAM

MAIN CONTACT

POSTS

Figure 8

Neutral Switch

NOTE: Prior to taking small resistance readings with a digital multimeter, short the test leads together. The me- ter will display a small resistance value (usually 0.5 ohms or less). This resistance is due to the internal re- sistance of the meter and test leads. Subtract this value from from the measured value of the component you are testing.

This switch is closed when the traction pedal is in the neutral position. The switch is located on the pump lever, which is attached to the hydraulic pump assembly.

1.Make sure the engine is off.

2.Disconnect one of the electrical connections from the switch terminal posts.

3.Check continuity of the switch by connecting a multi- meter (ohms setting) across the connector terminals.

4.With the traction pedal in the neutral position and the switch button depressed, resistance should be less than 1 ohm between the terminals.

5.With the traction pedal in the the forward or back- ward position, there the meter should read infinity ohms across the terminals.

6.Replace switch if necessary. Connect electrical connections to the switch terminal posts.

NEUTRAL

SWITCH

PUMP

LEVER

Figure 9

Electrical Systems

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Sand Pro 2020/3020/5020

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Image 138
Toro 5020, 2020, 3020 service manual Starter Solenoid, Neutral Switch, Ohms