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F-22

F-22

TROUBLESHOOTING & REPAIR

IDLER SOLENOID TEST (continued)

FIGURE F.5 – IDLER SOLENOID LEADS

IN-LINE

CONNECTORS

IDLER

SOLENOID

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TEST PROCEDURE

1.Turn the engine off.

2.Unlatch, lift, and secure the right side engine service access door.

3.Locate and remove the two in-line connec- tors that attach the idler solenoid leads to the wiring harness leads (#226A, #237A). See Figure F.5 and the Wiring Diagram.

4.Check the coil resistance. The normal resistance is approximately 4.5 ohms. If the coil resistance is not correct, the solenoid may be faulty. Replace.

5.Using the external 12VDC supply, apply 12VDC to the solenoid leads. The solenoid should activate. The solenoid should deac- tivate when the 12VDC is removed.

6.If the solenoid does not operate properly, check for a mechanical restriction in the linkage.

7.If the linkage is intact and the solenoid does not operate correctly when the 12VDC is applied, the solenoid may be faulty. Replace.

8.Replace leads #226A and #237A to the cor- rect in-line connectors. See Figure F.5 and the wiring diagram. Replace any previously removed wire wraps.

9.Close and secure the right side engine ser- vice access door.

COMMANDER 300

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Image 78
Lincoln Electric SVM145-B service manual Idler Solenoid Test, Figure F.5 Idler Solenoid Leads