Kohler LV680 manual

K OHLER A EGIS ® L V625, L V675, L V680 L IQUID -C OOLED V ERTICAL C RANKSHAFT O WNER ' S M ANUAL[...]

2 California Proposition 65 W arning Safety Precautions Engine exhaust from this product contains chemicals known to the S tate of California to cause cancer , birth defects, or other reproductive harm. W ARNING Explosive Fuel can cause fires and severe burns. S top engine before filling fuel tank. W ARNING Explosive Fuel! Gasoline is extremely fla[...]

3 Carbon Monoxide can cause severe nausea, fainting or death. Do not operate engine in closed or confined area. W ARNING W ARNING Explosive Gas can cause fires and severe acid burns. Charge battery only in a well ventilated area. Keep sources of ignition away . Accident al St arts! Disabling engine. Accidental starting can cause severe injury or de[...]

4 Oil Fill/ Dip stick Electric St arter Engine Identification Label Sp ark Plug V alve Cover with Integral Breather Oil Filter Fuel Pump Sp ark Plug Upper Blower Housing and Air Intake Screen Assembly Ret aining Strap Figure 1. T ypical Kohler Aegis ® V ertical Shaf t Engine. Figure 3. Oil Container Logo. Refer to “Maintenance Instructions” be[...]

5 Do not use gasoline left over from the previous season, to minimize gum deposits in your fuel system and to ensure easy starting. Do not add oil to the gasoline. Do not overfill the fuel tank. Leave room for the fuel to exp and. Fuel T ype For best results use only clean, fresh, unleaded gasoline with the pump sticker octane rating of 87 or highe[...]

6 Pre-St art Checklist • Check oil level. Add oil if low . Do not overfill. • Check coolant level. Add coolant if low . • Check fuel level. Add fuel if low . • Check radiator , cooling air intake areas and external surfaces of engine. Make sure they are clean and unobstructed. • Check that the air cleaner components and all shrouds, equip[...]

7 Battery A 12 volt battery is normally used. Refer to the operating instructions of the equipment this engine powers for specific battery requirements. If the battery charge is not sufficient to crank the engine, recharge the battery (see page 15). Operating Angle of Operation This engine will operate continuously at angles up to 20°. Check oil l[...]

8 Maintenance Instructions Maintenance, rep air , or replacement of the emission control devices and systems, which are being done at the customers expense, may be performed by any non-road engine rep air est ablishment or individual. W arranty rep airs must be performed by an authorized Kohler service outlet. W ARNING: Accident al St arts! Disabli[...]

9 Figure 6. Oil Level Dip stick. 5. If the level is low , add oil of the proper type, up to the “FULL” mark on the dipstick. (Refer to “Oil T ype” on page 4.) Always check the level with the dipstick before adding more oil. NOTE: T o prevent extensive engine wear or damage, always maintain the proper oil level in the crankcase. Never operat[...]

10 Cooling System Maintenance and Service Import ant service notes: • Do not operate the engine without coolant in system. • Do not remove the radiator cap when hot. Engine coolant is hot and under pressure and can cause severe burns. • T o prevent engine overheating and damage, use the recommended anti-freeze mixture in the cooling system. ?[...]

11 Draining Cooling System 1. S top the engine and allow it to cool sufficiently . 2. Unhook the four retaining straps, and remove the upper blower housing and screen assembly . See Figures 8 and 9. 3. 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. Then fully loosen [...]

12 7. Reinstall the reservoir , engaging the two lower molded protrusions in the mounting holes of the support bracket. Engage the top bracket around the upper protrusion. Hold it in this position and torque the screws to 7.3 N·m (65 in. lb.) . 8. Reinstall the reservoir cap. Do not kink/pinch the hose. 9. Flush the cooling system (see ‘‘Flush[...]

13 Service Precleaner W ash and reoil the precleaner every 25 hours of operation (more often under extremely dusty or dirty conditions). 1. Unhook the four retaining strap s and remove the upper blower housing and screen assembly . See Figures 8 and 9. 2. Remove the foam precleaner from the p aper element. See Figure 17. Figure 17. Removing Preclea[...]

14 Clean Air Int ake/Cooling Areas T o ensure proper air circulation, make sure the air intake screen, radiator , cooling fins, and other external surfaces of the engine are kept clean at all times . Every 100 hours of operation (more often under extremely dusty , dirty conditions), remove the upper blower housing assembly . Clean the cooling fins [...]

15 Ignition System This engine is equipped with an electronic CD ignition system. Other than periodically checking/replacing the spark plugs, no maintenance or adjustments are necessary or possible with this system. In the event starting problems should occur which are not corrected by replacing the spark plugs, see your Kohler Engine Service Deale[...]

16 Carburetor T roubleshooting and Adjustment s In compliance with the government emission standards, the carburetor is calibrated to deliver the correct fuel-to-air mixture to the engine under all operating conditions. The carburetor cannot be adjusted, except for low idle speed (RPM). Carburetor servicing is to be performed by an authorized Kohle[...]

17 Dirty Air Possible Cause No Improper Dirt In Int ake Screen Incorrect Engine Dirty Air Faulty Problem Fuel Fuel Fuel Line or Radiator Oil Level Overloaded Cleaner S park Plug Will Not S tart • • • ••• • Hard St arting •• • • • • Stop s Suddenly • • •••• • Lacks Power • • •••• • Operates Errat[...]

18 Specifications Model: ........................................................................................... L V625 ......................... L V675/L V680 Bore: ..................................................... in. (mm) ......................... 3.03 (77) ..................... 3.15 ( 80) S troke: .......................................[...]

19 KOHLER CO. FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS LIMITED W ARRANTY SMALL OFF-ROAD ENGINES The U.S. Environmental Protection Agency (EP A), the California Air Resources Board (CARB), and Kohler Co. are pleased to explain the Federal and California Emission Control Systems W arranty on your small off-road equipment engine. For California[...]

LIMIT A TIONS This Emission Control Systems Warranty shall not cover any of the following: (a) repair or replacement required because of misuse or neglect, improper maintenance, repairs improperly performed or replaceme nt s not conforming to Kohler Co. specifications that adversely affect performance and/or durability and alterations or modificati[...]