Hydraulic Valve Solenoids

The hydraulic valve solenoids are located below the seat and on the hydraulic manifold block.

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 valve electrical connector.

2.Apply 12VDC source directly to the solenoid. Listen for solenoid to switch on. Remove voltage source.

3.Measure resistance between the two connector ter­ minals. The resistance should be approximately 7.2 ohms.

1

2

Figure 11

1. Electrical connector

2. Solenoid

Hour Meter

1.Remove electrical connections from meter.

2.Connect the positive (+) terminal of a 12 VDC source to the positive terminal of the hour meter.

3.Connect the negative (–) terminal of the voltage source to the other terminal of the hour meter.

4.The hour meter should move a 1/10 of an hour in six minutes.

5. Disconnect the voltage source from the hour meter.

Figure 12

6.Reconnect electrical connections to meter. Make sure to observe polarity.

Electrical System

Page 6 – 12 Rev. A

Groundsmaster 3000/3000–D

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Toro 3000D manual Hydraulic Valve Solenoids, Hour Meter, Electrical System 6 12 Rev. a