Kohler Aegis LH640 User Manual

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Summary of Contents

Page 1 - OWNER'S MANUAL

LH630, LH640, LH685, LH690, LH755, LH775OWNER'S MANUALLIQUID-COOLEDHORIZONTAL CRANKSHAFTAEGIS®

Page 2 - Proposition 65 Warning

106. Apply a thin film of clean oil to the rubber gasketon the new filter.7. Install the new oil filter to the filter adapter. Handtighten the filter

Page 3 - Safety Precautions (Cont.)

11Figure 11. Radiator Drain Plug Location.Figure 10. Coolant Levels on Reservoir.Draining Cooling System1. Stop the engine and allow it to cool suffic

Page 4 - Oil Recommendations

12Figure 15. Removing End Cap.Figure 14. Air Cleaner Element and Inner Element.NOTE: Operating the engine with loose, damaged, ormissing air intake co

Page 5 - Engine Identification Numbers

133. After the main element is removed, check thecondition of the inner element. It should bereplaced whenever it appears dirty, typicallyevery other

Page 6 - Operating Instructions

14Figure 20. Pulley and Drive Belt.4. The drive belt is designed and constructed forthis application. Do not use a substitute belt.Check the overall c

Page 7 - Operating

15EFI Engines: A special, high volume, high pressurefilter with greater filtration capabilities and internalsurface area is used. See Figure 24.NOTE:

Page 8 - Maintenance Instructions

16• Make sure the air cleaner element and precleanerare clean and properly secured.• Make sure the air intake screen, blower housing,and cooling surfa

Page 9 - Check Oil Level

17TroubleshootingIf the MIL comes on, or the engine becomes hard tostart, runs roughly, or stalls at low idle speed, initialchecks should be made in t

Page 10

18SpecificationsModel: ... LH630/LH640 ... LH685/LH690 ... LH755 ...

Page 11

19KOHLER CO.FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMSLIMITED WARRANTYSMALL OFF-ROAD AND CLASS 1 LSI ENGINESThe U.S. Environmental Protection Age

Page 12

2Safety PrecautionsWARNINGExplosive Fuel can cause fires andsevere burns.Do not fill the fuel tank while theengine is hot or running.WARNINGExplosive

Page 13 - Components

(c) For warranty repairs, the engine must be presented to a Kohler Co. service center as soon as a problem exists. Call 1-800-544-2444 or accessour we

Page 14 - Check Spark Plugs

3Carbon Monoxide can causesevere nausea, fainting or death.Avoid inhaling exhaust fumes,and never run the engine in aclosed building or confined area.

Page 15 - Battery Charging

4Figure 1. Typical Kohler Aegis® Carbureted Engine.Oil RecommendationsUsing the proper type and weight of oil in thecrankcase is extremely important.

Page 16 - Adjustments

5Figure 4. Oil Container Logo.Refer to Maintenance Instructions beginning onpage 8 for detailed oil check, oil change, and oil filterchange procedures

Page 17 - Troubleshooting

6EPACARBCategory C250 HoursModerate125 HoursCategory B500 HoursIntermediate250 HoursCategory A1000 HoursExtended500* HoursFigure 5. Engine Identificat

Page 18 - Major Repair

74. A warm battery has much more startingcapacity than a cold battery.5. Use fresh winter grade fuel. NOTE: Winter gradegasoline has higher volatility

Page 19

8NOTE: Do not operate this engine continuously atangles exceeding 20° in any direction. Enginedamage could result from insufficientlubrication.Cooling

Page 20 - KohlerEngines.com

9Check Oil LevelThe importance of checking and maintaining theproper oil level in the crankcase cannot beoveremphasized. Check oil BEFORE EACH USE asf

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