Kohler Aegis LH630 Owner's Manual
Kohler liquid-cooled horizontal crankshaft owner's manual
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- Service manual (172 pages)
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Summary of Contents for Kohler Aegis LH630
- Page 1 WNER ANUAL AEGIS ® LH630, LH640, LH685, LH690, LH755, LH775 IQUID OOLED ORIZONTAL RANKSHAFT...
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Page 2: Safety Precautions
To ensure safe operations please read the following statements and understand their meaning. Also refer to your equipment owner's manual for other important safety information. This manual contains safety precautions which are explained below. Please read carefully. WARNING Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the warning is ignored. - Page 3 • Dependable, maintenance-free electronic ignition ensures fast, easy starts time after time. • Kohler engines are easy to service. All routine service areas (like the dipstick and oil fill, air cleaner, spark plugs, and carburetor) are easily and quickly accessible.
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Page 4: Oil Recommendations
Heavy-Duty Air Cleaner Oil Fill Spark Plug Oil Filter Oil Drain Plug Figure 1. Typical Kohler Aegis ® Heavy-Duty Air Cleaner Radiator Fuse Holders Figure 2. Typical Kohler Aegis ® Oil Recommendations Using the proper type and weight of oil in the crankcase is extremely important. -
Page 5: Fuel Recommendations
Gasoline/Alcohol blends Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved as a fuel for Kohler engines. Other gasoline/alcohol blends including E20 and E85 are not to be used and not approved. Any failures resulting from use of these fuels will not be warranted. -
Page 6: Operating Instructions
CERTIFIED ON: REFER TO OWNER'S MANUAL FOR HP RATING, SAFETY, MAINTENANCE AND ADJUSTMENTS 1-800-544-2444 www.kohlerengines.com KOHLER CO. KOHLER, WISCONSIN USA For Models LH755 and LH775 IMPORTANT ENGINE INFORMATION THIS ENGINE MEETS EMISSION REGS FOR U.S. EPA 2005 AND LATER AND EC STAGE II (SN:4) SI... - Page 7 If noise continues, run the engine at mid- throttle for 20 minutes. If noise persists, take the engine to your local Kohler Service outlet. NOTE: If the engine develops sufficient speed to disengage the starter but does not keep...
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Page 8: High Temperature Sensor
Cleanout Kits 25 755 20-S (black) or 25 755 21-S (gold) allow cooling areas to be cleaned without removing shrouds. 3. Check the system for external leaks. 4. If the cause is none of the above or cannot be identified, contact an Authorized Kohler Engine Dealer for appropriate diagnosis and correction. WARNING: Hot Parts! Engine components can get extremely hot from operation. -
Page 9: Check Oil Level
Refill with service class SG, SH, SJ or higher oil, as specified in the Viscosity Grades table (Figure 3) on page 4. Always use a genuine Kohler oil filter. Use chart below to determine part number to order. - Page 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 rubber gasket contacts the adapter, then tighten the filter an additional 3/4 to 1 turn.
- Page 11 Figure 10. Coolant Levels on Reservoir. Draining Cooling System 1. Stop the engine and allow it to cool sufficiently. 2. Check if the radiator is cool to the touch. Slowly loosen the radiator cap to the first stop and allow any pressure to bleed off.
- Page 12 2. Reinstall and tighten the radiator cap. 3. Start and run the engine for five minutes, or until it reaches operating temperature. Stop the engine and allow it to cool. 4. Drain the cooling system (Refer to Draining Cooling Systems). 5.
- Page 13 5. Check all parts for wear, cracks, or damage. Replace any damaged components. 6. Install the new inner element, Kohler Part No. 25 083 04-S followed by the outer element, Kohler Part No. 25 083 01-S. Slide each fully into place in the air cleaner housing.
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Page 14: Check Spark Plugs
Every 500 hours of operation replace the spark plugs. The standard spark plug is a Champion RC14YC (Kohler Part No. 66 132 01-S). Equivalent alternate brand plugs can also be used. 1. Before removing the spark plug, clean the area around the base of the plug to keep dirt and debris out of the engine. -
Page 15: Battery Charging
EFI Engines: A special fuel line, capable of withstanding the high pressure of the EFI fuel system, is used (must meet SAE R9 specifications). See Figure 24. If fuel line must be replaced, see your Kohler Engine Service Dealer. Fuel Filter Fuel Line 6 KHXS.7252 XX... -
Page 16: Carburetor Troubleshooting And Adjustments
The carburetor cannot be adjusted, except for low idle speed (RPM). Carburetor servicing is to be performed by an authorized Kohler Engine Service Dealer only. See Figure 26. NOTE: To ensure correct engine operating at altitudes above 1525 meters (5000ft.), it may... -
Page 17: Troubleshooting
For example, a starting problem could be caused by an empty fuel tank. Some common causes of engine troubles are listed in the following table. Do not attempt to service or replace major engine components, or any items that require special timing or adjustment procedures. Have your Kohler Engine Service Dealer do this work. Possible Cause No Improper... -
Page 18: Parts Ordering
(air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed and ambient operating conditions (temperature, humidity, and altitude). Kohler reserves the right to change product specifications, designs and equipment without notice and without incurring obligation. -
Page 19: Engine Warranty
U.S. EPA standards for the first two years of engine use from the date of sale to the ultimate purchaser. Kohler Co. must warrant the emission control system on the engine for the period of time listed above, provided there has been no abuse, neglect or improper maintenance. - Page 20 1997 and later model years, EPA requires manufacturers to warrant engines for two years in all other states. These warranty periods will begin on the date the engine is purchased by the initial purchaser. If any emission related part on the engine is defective, Kohler Co. will replace the part at no cost to the owner.