Kohler LH630, LH640, LH685, LH690, LH750, LH755 — спецификация (EN)

LH630, LH640, LH685, LH690, LH750, LH755 Service Manual IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating instruction of equipment that this engine powers. Ensure engine is stopped and level before performing any maintenance or service. 2 Safety 3 Maintenance 5 Specifi cations 12 Tools and Aids 15 Troubleshooting 19 Air Cleaner/Intake 20 Fuel System 25 Governor System 26 Lubrication System 28 Electrical System 34 Starter System 38 Cooling System 42 Disassembly/Inspection and Service 59 Reassembly 66 690 01 Rev. C KohlerEngines.com 1

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Safety

Safety SAFETY PRECAUTIONS WARNING: A hazard that could result in death, serious injury, or substantial property damage. CAUTION: A hazard that could result in minor personal injury or property damage. NOTE: is used to notify people of important installation, operation, or maintenance information. 2 KohlerEngines.com 66 690 01 Rev. C WARNING Explosive Fuel can cause fi res and severe burns. Do not fi ll fuel tank while engine is hot or running. Gasoline is extremely fl ammable and its vapors can explode if ignited. Store gasoline only in approved containers, in well ventilated, unoccupied buildings, away from sparks or fl ames.

Spilled fuel could ignite if it comes in contact with hot parts or sparks from ignition. Never use gasoline as a cleaning agent. WARNING Accidental Starts can cause severe injury or death. Disconnect and ground spark plug lead(s) before servicing. Before working on engine or equipment, disable engine as follows: 1) Disconnect spark plug lead(s). 2) Disconnect negative (–) battery cable from battery. CAUTION Electrical Shock can cause injury. Do not touch wires while engine is running. CAUTION Damaging Crankshaft and Flywheel Can Cause Personal Injury! Using improper procedures can lead to broken fragments. Broken fragments could be thrown from engine.

Always observe and use precautions and procedures when installing fl ywheel. WARNING Hot Parts can cause severe burns. Do not touch engine while operating or just after stopping. Never operate engine with heat shields or guards removed. WARNING Rotating Parts can cause severe injury. Stay away while engine is in operation. Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate engine with covers, shrouds, or guards removed. WARNING Hot liquid can cause severe burns. Do not loosen radiator cap while engine is operating or warm to touch. Liquid coolant can get extremely hot from operation.

Turning radiator cap when engine is hot can allow steam and scalding liquid to blow out and burn you severely. Shut off machine. Only remove radiator cap when cool enough to touch with bare hands. Slowly loosen cap to fi rst stop to relieve pressure before removing completely. WARNING Cleaning Solvents can cause severe injury or death. Use only in well ventilated areas away from ignition sources. Carburetor cleaners and solvents are extremely fl ammable. Follow cleaner manufacturer’s warnings and instructions on its proper and safe use. Never use gasoline as a cleaning agent. WARNING Carbon Monoxide can cause severe nausea, fainting or death. Avoid inhaling exhaust fumes.

Engine exhaust gases contain poisonous carbon monoxide. Carbon monoxide is odorless, colorless, and can cause death if inhaled.

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Maintenance

Maintenance MAINTENANCE INSTRUCTIONS Normal maintenance, replacement or repair of emission control devices and systems may be performed by any repair establishment or individual; however, warranty repairs must be performed by a Kohler authorized dealer. MAINTENANCE SCHEDULE Every 200 Hours 1 Every 200 Hours ● Replace fuel fi lter. Every 250 Hours 1 Every 500 Hours 1 Every 500 Hours Every 1000 Hours 1 Perform these procedures more frequently under severe, dusty, dirty conditions. REPAIRS/SERVICE PARTS Kohler genuine service parts can be purchased from Kohler authorized dealers. Find your local Kohler Engines dealer at KohlerEngines.com or call 1-800-544-2444 (U.S.A. and Canada). 66 690 01 Rev.

C KohlerEngines.com 3 WARNING Before working on engine or equipment, disable engine as follows: 1) Disconnect spark plug lead(s). 2) Disconnect negative (–) battery cable from battery. Accidental Starts can cause severe injury or death. Disconnect and ground spark plug lead(s) before servicing. ● Change oil and oil fi lter. Lubrication System ● Replace air cleaner element and check inner element. Air Cleaner/Intake ● Replace air cleaner inner element. Air Cleaner/Intake ● Replace spark plugs and set gap. Electrical System ● Change engine coolant. Cooling System

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Maintenance

Maintenance OIL RECOMMENDATIONS We recommend use of Kohler oils for best performance. Other high-quality detergent oils (including synthetic) of API (American Petroleum Institute) service class SJ or higher are acceptable. Select viscosity based on air temperature at time of operation as shown in table below. STORAGE If engine will be out of service for 2 months or more follow procedure below. 1. Add Kohler PRO Series fuel treatment or equivalent to fuel tank. Run engine 2-3 minutes to get stabilized fuel into fuel system (failures due to untreated fuel are not warrantable). 2. Change oil while engine is still warm from operation. Remove spark plug(s) and pour about 1 oz.

of engine oil into cylinder(s). Replace spark plug(s) and crank engine slowly to distribute oil. 3. Disconnect negative (-) battery cable. 4. Store engine in a clean, dry place. FUEL RECOMMENDATIONS NOTE: E15, E20 and E85 are NOT approved and should NOT be used; effects of old, stale or contaminated fuel are not warrantable. Fuel must meet these requirements: ● Clean, fresh, unleaded gasoline. ● Octane rating of 87 (R+M)/2 or higher. ● Research Octane Number (RON) 90 octane minimum. ● Gasoline up to 10% ethyl alcohol, 90% unleaded is acceptable. ● Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline blend (max 15% MTBE by volume) are approved. ● Do not add oil to gasoline.

● Do not overfi ll fuel tank. ● Do not use gasoline older than 30 days. 4 KohlerEngines.com 66 690 01 Rev. C WARNING Explosive Fuel can cause fi res and severe burns. Do not fi ll fuel tank while engine is hot or running. Gasoline is extremely fl ammable and its vapors can explode if ignited. Store gasoline only in approved containers, in well ventilated, unoccupied buildings, away from sparks or fl ames. Spilled fuel could ignite if it comes in contact with hot parts or sparks from ignition. Never use gasoline as a cleaning agent.

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