Kohler Aegis LH640- User Manual

Page 2 - Safety Precautions; WARNING; can; CAUTION; will; NOTE; Hot Parts can cause severe burns.; WARNING; California

2 Safety Precautions WARNING Explosive Fuel can cause fires andsevere burns. Do not fill the fuel tank while theengine is hot or running . WARNING Explosive Fuel! Gasoline is extremely flammable and itsvapors can explode if ignited. Storegasoline only in approved containers, inwell ventilated, unocc...

Page 3 - Before; Lethal Exhaust Gases!; Electrical Shock can cause injury.; Congratulations –; under all operating conditions.

3 Carbon Monoxide can causesevere nausea, fainting or death. Avoid inhaling exhaust fumes,and never run the engine in aclosed building or confined area . WARNING WARNING Explosive Gas can cause fires andsevere acid burns. Charge battery only in a wellventilated area. Keep sources ofignition away. Ac...

Page 4 - Oil Recommendations; Use high quality detergent oil of

4 Figure 1. Typical Kohler Aegis ® Carbureted Engine. Oil Recommendations Using the proper type and weight of oil in thecrankcase is extremely important. So is checking oildaily and changing oil regularly. Failure to use thecorrect oil, or using dirty oil, causes premature enginewear and failure. Oi...

Page 5 - Fuel Recommendations; General Recommendations; be used on EFI engines, or; Gasoline/Alcohol blends; Coolant Recommendations; not; Engine Identification Numbers; Specification, and Serial Numbers; NOTE: Synthetic oils meeting the listed

5 Figure 4. Oil Container Logo. Refer to Maintenance Instructions beginning onpage 8 for detailed oil check, oil change, and oil filterchange procedures. Fuel Recommendations WARNING: Explosive Fuel! Gasoline is extremely flammable and its vapors can explode ifignited. Store gherasoline only in appr...

Page 6 - Model Designation; Suffix; Operating Instructions; Cold Weather Starting Hints; FAMILY

6 EPA CARB Category C250 HoursModerate125 Hours Category B500 HoursIntermediate250 Hours Category A1000 HoursExtended500* Hours Figure 5. Engine Identification Label. The Emission Compliance Period referred to on theEmission Control or Air Index label indicates thenumber of operating hours for which...

Page 7 - Starting; Carbureted Engines Only:; Stopping; Battery; Angle of Operation

7 4. A warm battery has much more starting capacity than a cold battery. 5. Use fresh winter grade fuel. NOTE: Winter grade gasoline has higher volatility to improvestarting. Do not use gasoline left over fromsummer. Starting 1. Place the throttle control midway between the slow and fast positions. ...

Page 8 - High Temperature Sensor; Maintenance Instructions; Before working on the engine or equipment, disable; Maintenance Schedule

8 NOTE: Do not operate this engine continuously at angles exceeding 20° in any direction. Enginedamage could result from insufficientlubrication. Cooling NOTE: If debris builds up on the radiator, cooling system, or other external areas, stop theengine immediately and clean. Operating theengine with...

Page 9 - Check Oil Level; BEFORE EACH USE; Change Oil and Filter; annually

9 Check Oil Level The importance of checking and maintaining theproper oil level in the crankcase cannot beoveremphasized. Check oil BEFORE EACH USE as follows: 1. Make sure the engine is stopped, level, and is cool so the oil has had time to drain into the sump. 2. To keep dirt, debris, etc., out o...

Page 10 - Cooling System Maintenance and Service

10 6. Apply a thin film of clean oil to the rubber gasket on the new filter. 7. Install the new oil filter to the filter adapter. Hand tighten the filter (clockwise) until the rubbergasket contacts the adapter, then tighten the filteran additional 3/4 to 1 turn . 8. Fill the crankcase with new oil o...

Page 13 - Cooling Fan Assembly, Belt, and Drive Pulleys; DO NOT

13 3. After the main element is removed, check the condition of the inner element. It should bereplaced whenever it appears dirty, typicallyevery other time the main element is replaced.Clean the area around the base of the innerelement before removing it, so dirt does not getinto the engine. See Fi...

Page 14 - Do not use a substitute belt; Clean Air Intake/Cooling Areas; at all times; Check Spark Plugs; Ignition System; Carbureted Engines -

14 Figure 20. Pulley and Drive Belt. 4. The drive belt is designed and constructed for this application. Do not use a substitute belt . Check the overall condition of the belt. If belt iscracked, damaged, or adequate tension does notexist, have necessary servicing performed by anauthorized Kohler En...

Page 15 - Battery Charging; Fuel Filter; Use a genuine Kohler; Wire Gauge; Fuel Line; Family

15 EFI Engines: A special, high volume, high pressure filter with greater filtration capabilities and internalsurface area is used. See Figure 24. NOTE: Do not clean the spark plug in a machine using abrasive grit. Some grit couldremain in the spark plug and enter theengine, causing extensive wear a...

Page 17 - Adjustment – EFI Throttle Body; idle; Troubleshooting

17 Troubleshooting If the MIL comes on, or the engine becomes hard tostart, runs roughly, or stalls at low idle speed, initialchecks should be made in the following areas: • Make sure the fuel tank is filled with clean, fresh gasoline, and shut-off valve (if so equipped) isopened completely. • Make ...

Page 18 - Always insist on genuine Kohler parts.; Major Repair

18 Specifications Model: .............................................................. LH630/LH640 ............ LH685/LH690 ............. LH755 .......................... LH775Bore: ......................................... in. (mm) ....... 3.03 (77) ..................... 3.15 (80) ...................

Page 19 - LIMITED 3 YEAR KOHLER AEGIS

19 KOHLER CO. FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS LIMITED WARRANTY SMALL OFF-ROAD AND CLASS 1 LSI ENGINES The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Kohler Co. are pleased to explainthe Federal and California Emission Control Systems Wa...

Kohler Aegis LH640- User Manual

Table of Contents:

Summary

Other Kohler Models