Lincoln Electric IM931 manual AIR Filter Paper Element, Spark Plug Service

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D-3

MAINTENANCE

D-3

 

 

 

AIR FILTER PAPER ELEMENT

1.Loosen the cover retaining knob and remove the cover.

2.Remove the pre-cleaner from the paper element.

3.Remove the element cover nut, element cover, and paper element.

4.Do not wash the paper element or use pressurized air, as this will damage the element. Replace a dirty, bent, or damaged element with a new ele- ment. Handle new elements carefully; do not use if the sealing surfaces are bent or damaged.

5.When servicing the air cleaner, check the air cleaner base. Make sure it is secured and not bent or dam- aged. Also check the element cover for damaged or improper fit. Replace all damaged air cleaner com- ponents.

NOTE: Before air cleaner is reassembled make sure rubber seal is in position around stud. Inspect, making sure it is not damaged and seals with the element cover.

6.Reinstall the paper element, pre-cleaner, element cover, element cover nut, and air cleaner cover. Secure cover with the cover retaining knob.

SPARK PLUG

To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.

WARNING

NOTE: Before removing spark plug, the muffler becomes very hot during operation and remains hot for a while after stopping the engine. Be care- ful not to touch the muffler while it is hot.

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SPARK PLUG SERVICE

To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.

1.Remove the spark plug cap.

2.Clean any dirt from around the spark plug base.

3.Use a plug wrench to remove the spark plug.

4.Visually inspect the spark plug. Discard them if the insulator is cracked or chipped. Clean the spark plug with a wire brush if it is to be reused.

5.Measure the plug gap with a feeler gauge. Correct as necessary by bending the side electrode.

6.Check that the spark plug washer is in good condi- tion and thread the spark plug in by hand to prevent cross-threading.

7.After the spark plug is seated, tighten with a spark plug wrench to compress the washer. (See proper spark plug torque which is specified below).

Spark Plug Gap: .030 in. (0.76 mm)-Kohler Engine

Spark Plug Torque: 20 ft. Lb. (27 N-m)-Kohler Engine

CAUTION

The spark plug must be securely tightened. An improperly tightened spark plug can become very hot and may cause engine damage.

Use only the recommended spark plug or equiva- lent. A spark plug which has an improper heat range may cause engine damage.

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RANGER 250 LPG

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Contents Ranger 250 LPG Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Section D Section ESection F SeriesInstallation Technical Specifications Ranger 250 LPG K2336-2Machine Specifications Ranger 250 LPG Engine K2336-2 Safety Precautions Fuel PRE-OPERATION ServiceTighten by hand Battery Connection Remote ControlOIL Engine Cooling SystemElectrical Connections Auxiliary Power Receptacles Standby Power ConnectionsConnection of Ranger 250 LPG to Premises GNDConnection of Lincoln ELEC- Tric Wire Feeders Connection of LN-15 Wire Feeder to the Ranger 250 LPGConnection of LN-7 or LN-8 to the Ranger 250 LPG Across-The-Arc ModelConnection of the LN-25 to the Ranger 250 LPG Connection of Prince Spool Gun to the Ranger 250 LPGDesign Features Additional Safety PrecautionsOperation General DescriptionWelding Controls Weld Mode Selector SwitchARC Control Engine Controls Welder Operation StoppingDuty Cycle Typical Ranger 250 LPG Fuel ConsumptionTIG Welding Wire WELDING-CVTypical Current Ranges 1 for Tungsten ELECTRODES2 ARC Gouging Auxiliary PowerRanger 250 LPG Extension Cord Length Recommendations T12153-9 50 AMP, 120/240V Power Plug AccessoriesRecommended Optional Equipment Engine Maintenance Components MaintenanceKohler Engine AIR Cleaner Service AIR PRE-CLEANER ServiceEngine OIL Change Engine OIL Refill CapacitiesAIR Filter Paper Element Spark Plug ServiceSpark Plug Engine Adjustment Overspeed is Hazardous Battery MaintenanceCleaning the Battery Charging the BatteryWelder / Generator Maintenance Gfci Receptacle Testing and RESET- Ting ProcedureTroubleshooting HOW to USE Troubleshooting GuidePersists,Contact your local Service FacilityLincoln Authorized Field Cause Course of Action Contact your local LincolnTroubleshooting Troubleshooting Diagrams Diagrams Diagrams Diagrams Diagrams Engine Welders /LN-8 Connection Diagram Diagrams Diagrams Diagrams Diagrams Diagrams Dimension Print Ranger 250 LPGRanger 250 LPG Ranger 250 LPG Precaucion Warnung
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