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| Observe Safety GuidelinesTROUBLESHOOTING & REPAIR |
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| detailed in the beginning of this manual. |
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| TROUBLESHOOTING GUIDE | ||||||||||
| PROBLEMS |
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| POSSIBLE AREAS OF |
| RECOMMENDED |
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| (SYMPTOMS) |
| MISADJUSTMENT(S) |
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| COURSE OF ACTION |
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| ENGINE AND IDLE PROBLEMS |
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| The engine will not go to high idle | 1. | The load on the auxiliary recep- |
| 1. | Check that leads #3 and #6 are | ||||||||
| when | using | auxiliary | power. |
| tacle may be too low. The auto- |
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| Auxiliary power is normal when the |
| matic idle system will not func- |
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| properly routed through the | ||||||||
| idler switch is in the “HIGH” posi- |
| tion reliably if the load is less |
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| torodal current sensor. | Each | |||||||
| tion. | And the automatic idle func- |
| than 100 watts. | to the |
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| lead must have two turns and | ||||||
| tion works properly when welding. | 2. The device | connected |
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| must pass through the sensor in | ||||||||
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| auxiliary power may be defec- |
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| opposite directions. | See the | ||||
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| 3. | tive; try using another device. |
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| wiring diagram. | The | leads | |||
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| Make sure that the connections |
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| should be wrapped tightly and | ||||||
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| 4. | to the auxiliary devices are tight. |
| 2. |
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| Some devices are designed to |
| Check the toriodal current sen- | |||||||
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| sense for adequate input power. |
| 3. | sor for an signs of damage. | |||||
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| Products of this type may not |
| Check leads #260 and #261 for | ||||||
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| turn on due to the low voltage |
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| poor connections and damage | |||||
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| and frequency of the idling |
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| to the conductors and insulation | |||||
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| machine. If this happens, the |
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| between the toroidal | current | ||||
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| current draw will likely be insuf- |
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| sensor and the P3 connector on | |||||
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| ficient to activate the automatic |
| 4. | the control Pc board. |
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| idle system. | Devices | of this |
| Unplug plug P3 from the control | ||||
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| type may require that the idler |
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| PC board and check for dam- | |||||
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| switch be in the “HIGH IDLE” |
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| aged, dirty, or corroded pins. | |||||
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| position. |
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| 5. Measure the resistance | of the | |||
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| toridal current sensor. Measure | |||
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| between | |||
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| meter should read about 10 to | |||
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| 14 ohms |
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| 6. If the current sensor is shorted | ||||
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| or open, replace it. |
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| 7. The control PC board may be | ||||
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| defective. |
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| The engine will not go to high idle | 1. Check that the welding cables |
| 1. | The weld control PC board may |
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| when striking an arc. The automat- |
| are in good condition and the |
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| be defective. |
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| ic idle system functions normally |
| connections | are tight. | Make |
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| when | using | auxiliary | power. |
| sure that work clamp is |
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| Welding and auxiliary outputs are |
| attached to clean, bare metal. |
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| normal when the idle switch is in |
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| the “HIGH IDLE” position. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
