Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for Kohler 18-26
Summary of Contents for Kohler 18-26
- Page 1 WNER ANUAL OMMAND 18-26 HP ORIZONTAL RANKSHAFT...
- Page 2 To insure 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 WARNING Accidental Starts can cause severe injury or death. Disconnect and ground spark plug leads before servicing. Accidental Starts! Disabling engine. Accidental starting can cause severe injury or death. Before working on the engine or equipment, disable the engine as follows: 1) Disconnect the spark plug lead(s).
- Page 4 Dipstick Electric Starter Side Oil Drain Plugs Figure 1. Typical Command Horizontal Shaft Engine (CH18-25). Ignition Coil Oil Filter Oil Cooler Figure 2. CH26 Command Horizontal Shaft Engine. Air Cleaner Oil Fill Fuel Pump Oil Filter Oil Cooler Rectifier-Regulator Throttle Body Intake Manifold Rectifier-Regulator Ignition Coil Fuel Injectors...
- Page 5 Oil Recommendations Using the proper type and weight of oil in the crankcase is extremely important. So is checking oil daily and changing oil regularly. Failure to use the correct oil, or using dirty oil, causes premature engine wear and failure.
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Page 6: Operating Instructions
Engine Identification Numbers When ordering parts, or in any communication involving an engine, always give the Model, Specification, and Serial Numbers of the engine. The engine identification numbers appear on a decal (or decals) affixed to the engine shrouding. Include letter suffixes, if there are any. - Page 7 Choke Control Figure 6. Optional Engine Mounted Throttle and Choke Controls (CH18-25). 2. Start the engine by activating the key switch. Release the switch as soon as the engine starts. NOTE: Do not crank the engine continuously for more than 10 seconds at a time. If the engine does not start, allow a 60 second cool down period between starting attempts.
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Page 8: Maintenance Instructions
WARNING: Hot Parts! Engine components can get extremely hot from operation. To prevent severe burns, do not touch these areas while the engine is running–or immediately after it is turned off. Never operate the engine with heat shields or guards removed. Maintenance, repair, 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 repair establishment or individual. - Page 9 Operating Range Figure 7. Oil Level Dipstick. 5. If the level is low, add oil of the proper type, up to the “F” mark on the dipstick. (Refer to “Oil Type” on page 5.) Always check the level with the dipstick before adding more oil.
- Page 10 Change Oil Filter Replace the oil filter at least every other oil change (every 200 hours of operation). Always use a genuine Kohler oil filter, Part No. 12 050 01. Replace the oil filter as follows: 1. Drain the oil from the engine crankcase. 2.
- Page 11 7. When precleaner replacement is necessary, order genuine Kohler parts. 24 083 02 61 mm deep x 173 mm O.D. 24 083 05 71 mm deep x 173 mm O.D. Service Paper Element Every 100 hours of operation (more often under extremely dusty or dirty conditions) replace the paper element.
- Page 12 3. Check the gap using a wire feeler gauge. Adjust the gap to 0.76 mm (0.030 in.) by carefully bending the ground electrode. See Figure 11. Wire Gauge Spark Plug Ground Electrode Figure 11. Servicing Spark Plug. 4. Reinstall the spark plug into the cylinder head. Torque the spark plug to 24.4/29.8 N·m (18/22 ft.
- Page 13 CH18-25 Carburetor Troubleshooting and Adjustments NOTE: Carburetor adjustments should be made only after the engine has warmed up. The carburetor is designed to deliver the correct fuel-to-air mixture to the engine under all operating conditions. The high idle is set at the factory and cannot be adjusted.
- Page 14 CH26 Electronic Fuel Injection (EFI) System The EFI system is a complete, electronically controlled fuel management system, designed to deliver a precisely controlled fuel flow under all operating conditions. The electronic control unit (ECU), the ‘‘brain’’ of the system, automatically adjusts fuel delivery and ignition timing based upon load, speed, operating temperature, and exhaust emission levels.
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Page 15: Troubleshooting
Troubleshooting When troubles occur, be sure to check the simple causes which, at first, may seem too obvious to be considered. 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. -
Page 16: Specifications
) ... 38.1 (624) ... 38.1 (624) ... 38.1 (624) Power (@3600 RPM): ... HP (kW) ... 18* (13.4) ... 20* (14.9) ... 22* (16.4) ... 25* (18.4)/26 (19.4 ) Max. Torque: ... (ft. lbs. @ RPM) ... 30 (41) @2500 ... 32 (44) @2500 ... 33 (45) @2500 ... 39.5 (54) @2400/41.6 (56.4) @2200 Compression Ratio: ... - Page 17 FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS UTILITY AND LAWN AND GARDEN ENGINES The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Kohler Co. are pleased to explain the Federal and California Emission Control Systems Warranty on your utility/lawn/garden equipment engine (herein engine). For California, engines produced in 1995 and later must be designed, built and equipped to meet the state’s stringent anti-smog standards.
- Page 18 LIMITATIONS This Emission Control Systems Warranty shall not cover any of the following: repair or replacement required because of misuse or neglect, improper maintenance, repairs improperly performed or replacements not conforming to Kohler Co. specifications that adversely affect performance and/or durability and alterations or modifications not recommended or approved in writing by Kohler Co., replacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled replacement point,...
- Page 20 ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044 FOR SALES AND SERVICE INFORMATION IN U.S. AND CANADA, CALL 1-800-544-2444 FORM NO.: TP-2474-E ISSUED: 12/94 REVISED: 5/99 MAILED: LITHO IN U.S.A.