Lincoln Electric SVM150-A service manual Idler Solenoid Test, Figure F.3 Idler Solenoid Leads

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F-18 F-18

TROUBLESHOOTING & REPAIR

IDLER SOLENOID TEST (continued)

FIGURE F.3 – IDLER SOLENOID LEADS

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SOLENOID

HOUSING

LEADS #210C

AND #215 TO

CONNECTORS

STATOR

TEST PROCEDURE

1.Turn the engine off.

2.Perform the Case Cover Removal proce- dure.

3.Locate the idler solenoid mounted on the stator beside the fuel tank filler neck.

4.Locate and remove the two in-line connec- tors that attach the idler solenoid leads to the wiring harness leads (#210C and #215). Cut any necessary cable ties. See Figure F.3 and the Wiring Diagram.

5.Check the coil resistance. The normal resistance is approximately 15 ohms. If the coil resistance is not correct, the solenoid may be faulty. Replace.

6.Using the external 12VDC supply, apply 12VDC to the solenoid leads. Push the solenoid plunger in (this simulates the action that takes place when the engine is

running and there is less resistance to solenoid movement) and check that it holds by itself. The solenoid should deac- tivate when the 12VDC is removed.

7.If the solenoid does not operate properly, check for a mechanical restriction in the linkage. Also check for proper operation of the governor. See the Engine Owner's Manual.

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

9.Replace leads #210C and #215 to the correct in-line connectors. See Figure F.3 and the Wiring Diagram. Replace any previously removed cable ties.

10.If finished testing, perform the Case Cover Replacement procedure.

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