Summary of the content on the page No. 1
OWNER'S MANUAL
COMMAND SERIES
CH18-26, CH730-745
HORIZONTAL CRANKSHAFT
Summary of the content on the page No. 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. CAUTION Caution is used to indicate the presence
Summary of the content on the page No. 3
Safety Precautions (Cont.) WARNING WARNING WARNING Explosive Gas can cause fires and Accidental Starts can cause severe Carbon Monoxide can cause severe acid burns. injury or death. severe nausea, fainting or death. Charge battery only in a well Disconnect and ground spark plug Do not operate engine in closed or ventilated area. Keep sources of leads before servicing. confined area. ignition away. Accidental Starts! Lethal Exhaust Gases! Explosive Gas! Disabling engine. Accidental Engine exhaust
Summary of the content on the page No. 4
Air Cleaner Dipstick Oil Fill Fuel Pump Oil Filter Oil Cooler Electric Starter Rectifier-Regulator Side Oil Drain Plugs Figure 1. Typical Command Horizontal Shaft Carbureted Engine. Throttle Body Intake Manifold Ignition Coil Fuel Injectors Ignition Coil Oil Filter Oil Cooler Rectifier-Regulator Figure 2. Typical Command Horizontal Shaft EFI Engine. 4
Summary of the content on the page No. 5
Refer to “Maintenance Instructions” beginning on Oil Recommendations page 8 for detailed oil check, oil change, and oil Using the proper type and weight of oil in the filter change procedures. 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 Fuel Recommendations wear and failure. WARNING: Explosive Fuel! Gasoline is extremely flammable and its vapors can Oil Type explode if ignited.
Summary of the content on the page No. 6
Engine Identification Numbers Model Designation When ordering parts, or in any communication involving Model CH20S for example: C designates Command an engine, always give the Model, Specification, and engine, H designates horizontal crankshaft, and 20 Serial Numbers of the engine. designates horsepower. Some model numbers (CH730) use a numerical designation rather than The engine identification numbers appear on a decal horsepower. A letter suffix designates a specific version affixed to the en
Summary of the content on the page No. 7
Starting flywheel is rotating, the starter pinion and 1. Place the throttle control midway between the flywheel ring gear may clash resulting in ‘‘slow’’ and ‘‘fast’’ positions. Place the choke damage to the starter. control (non-EFI engines only) into the ‘‘on’’ position. See Figure 6. If the starter does not turn the engine over, shut off starter immediately. Do not make further attempts to start the engine until the condition is corrected. Do not jump start using another battery (refer to “Ba
Summary of the content on the page No. 8
Refer to the operating instructions of the equipment this WARNING: Hot Parts! engine powers. Because of equipment design or Engine components can get extremely hot from application, there may be more stringent restrictions operation. To prevent severe burns, do not touch these regarding the angle of operation. areas while the engine is running, or immediately after it is turned off. Never operate the engine with heat shields NOTE: Do not operate this engine continuously at or guards removed. ang
Summary of the content on the page No. 9
Check Oil Level Change Oil and Filter, Service Oil Cooler The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized. Change Oil Check oil BEFORE EACH USE as follows: Change oil after every 100 hours of operation (more frequently under severe conditions). Refill with service 1. Make sure the engine is stopped, level, and is cool class SG, SH, SJ or higher oil as specified in the so the oil has had time to drain into the sump. ‘‘Viscosity Grades’’ ta
Summary of the content on the page No. 10
Service Oil Cooler Some engines are equipped with an oil cooler. One style of oil cooler mounts on the engine crankcase and has the oil filter on it (See Figure 8). The other style of oil cooler is mounted on the blower housing (See Figure 9), separate from the oil filter. Inspect and clean the oil cooler every 100 hours of operation (more frequently under severe conditions). Oil cooler must be kept free of debris. Oil Filter To service the crankcase mounted oil cooler clean off Oil Cooler Oil D
Summary of the content on the page No. 11
Check the air cleaner daily or before starting the 4. Do not wash the paper element or use engine. Check for a buildup of dirt and debris around pressurized air, as this will damage the element. the air cleaner system. Keep this area clean. Also Replace a dirty, bent, or damaged element with a check for loose or damaged components. Replace all genuine Kohler element. Handle new elements bent or damaged air cleaner components. carefully; do not use if the sealing surfaces are bent or damaged. NOT
Summary of the content on the page No. 12
Clean Air Intake/Cooling Areas To ensure proper cooling, make sure the grass screen, Inner cooling fins, and other external surfaces of the engine Main Element are kept clean at all times. Element Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing* and other cooling shrouds. Clean the cooling fins and external surfaces as necessary. Make sure the cooling shrouds are reinstalled. NOTE: Operating the engine with a blocked grass screen, dirt
Summary of the content on the page No. 13
3. Check the gap using a wire feeler gauge. Adjust Fuel Filter the gap to 0.76 mm (0.030 in.) by carefully Carbureted Engines: Most engines are equipped with bending the ground electrode. See Figure 14. an in-line fuel filter. Periodically inspect the filter and replace with a genuine Kohler filter every 200 operating hours. Wire Gauge EFI Engines: A special, high volume, high pressure Spark Plug filter with greater filtration capabilities and internal surface area is used. See Figure 15. Fuel F
Summary of the content on the page No. 14
2. Low Idle Speed Setting: Place the throttle control into the “idle” or “slow” position. Set the low idle speed to 1200 RPM* (± 75 RPM) by turning the low idle speed adjusting screw in or out. Check the speed using a tachometer. Low Idle *NOTE: The actual low idle speed depends on the Fuel Adj. application – refer to equipment Needle & Low Idle manufacturers recommendations. The Spring Speed Adj. standard low idle speed is 1200 RPM. Screw Fixed Main Jet 3. If proper operation is not restored af
Summary of the content on the page No. 15
• Make sure the proper fuel filter is being used, and it If adjustment is to be made, the engine must be at is clean and unobstructed. Replace filter only with operating temperature, air cleaner in place, and check genuine Kohler parts. engine light must be off (no fault codes present). • Make sure all connections to sensors, ECU, and 1. Start the engine and run at half throttle for 5 to 10 fuel injectors are properly secured. minutes to warm up. • Make sure a good 12 volt battery is being used
Summary of the content on the page No. 16
5. On units with EFI engines, disconnect the negative Storage (-) battery cable or use a "battery minder" trickle If the engine will be out of service for two months or charger while the unit is in storage. more, use the following storage procedure: 6. Store the engine in a clean, dry place. 1. Clean the exterior surfaces of the engine. On EFI engines, avoid spraying water at the wiring Parts Ordering harness or any of the electrical components. The engine Specification, Model, and Serial Number
Summary of the content on the page No. 17
LIMITED 2 YEAR COMMAND ENGINE WARRANTY Kohler Co. warrants to the original consumer that each new COMMAND engine sold by Kohler Co. will be free from manufacturing defects in materials or workmanship in normal service for a period of two (2) years from date of purchase, provided it is operated and maintained in accordance with Kohler Co.’s instructions and manuals. Our obligation under this warranty is expressly limited, at our option, to the replacement or repair at Kohler Co., Kohler, Wisconsi
Summary of the content on the page No. 18
(c) For warranty repairs, the engine must be presented to a Kohler Co. service center as soon as a problem exists. Call 1-800-544-2444 or access our website at: www.kohlerengines.com, for the names of the nearest service centers. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If you have any questions regarding warranty rights and responsibilities, you should contact Kohler Co. at 1-920-457-4441 and ask for an Engine Service representative. COVERA
Summary of the content on the page No. 19
FORM NO.: 24 590 01 ISSUED: 11/04 REVISED: 1/05 MAILED: LITHO IN U.S.A. FOR SALES AND SERVICE INFORMATION IN U.S. AND CANADA, CALL 1-800-544-2444 ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044
