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| . A complete Parts List is available at wwwHobartWelders.com |
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| 1 | Engine Control Switch |
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| Carburetor Icing | |
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| Carburetor icing causes the unit to drop below the normal idle speed and then | |
| Infrequently | stall. This condition occurs when the temperature is near freezing and the rela- | |
1 | tive humidity is high. Ice forms on the throttle plate and inner bore of the carbu- | ||
| Loaded | retor. The engine typically restarts without problems but soon stalls again. | |
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| S Treat gasoline with a fuel de−icer product (isopropyl alcohol). | |
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| S Place the Engine Control switch in the Run position. | |
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| S Run engine only when expecting to frequently load it. | |
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| Breather Icing | |
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| Oil breather/pulse line icing occurs in severe cold (continuously below 0_F). | |
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| Moisture accumulates in the oil from piston ring blow−by if the engine is exten- | |
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| sively idled. This may cause vacuum line freezing, oil breather tube freezing | |
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| or ice in the carburetor. All of these cause operating problems. Due to ice in | |
| Frequently | the lines, the engine may not restart until it is warmed to above freezing. | |
| S Load engine and reduce idle times to prevent engine shutdowns. | ||
| Loaded | ||
| S Use an electric fuel pump to avoid pulse line freezing. | ||
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| S Install engine cold−weather kit. | |
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| Both Kohler | |
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| weather operation. The user can install these kits. Both kits pull heated air from | |
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| the muffler surface into the carburetor and shut the cold air off. This increases | |
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| engine temperature during operation in both idle and high speed. | |
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| . When the ambient temperatures become warmer (above 45_F) the air | |
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| flow will have to be returned to normal. |
| Ref. 240 947 |
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Notes
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