Kohler CH940 manual

1 O WNER ' S M ANUAL H ORIZONT AL C RANKSHAFT COMMAND PRO CH940-CH1000[...]

2 Safety Precautions T o 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 . W ARNING W arning is used to indicate the presence of [...]

3 Safety Precautions (Cont.) Lethal Exhaust Gases! Engine exhaust gases contain poisonous carbon monoxide. Carbon monoxide is odorless, colorless, and can cause death if inhaled. Avoid inhaling exhaust fumes, and never run the engine in a closed building or confined area. Accidental Starts! Disabling engine. Accidental starting can cause severe inj[...]

4 Figure 1. T ypical Command PRO Horizontal Shaf t Engine. 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 . It is also recommended that a consistent brand of oil be used. Failure to use the correct oil, or using dirty oil, causes premature engi[...]

5 Fuel Recommendations W ARNING: E x plosive Fuel! Gasoline is extremely flammable and its vapors can explode if ignited. Store gasoline only in approved containers, in well ventilated, unoccupied buildings, away from sparks or flames. Do not fill the fuel tank while the engine is hot or running, since spilled fuel could ignite if it comes in conta[...]

6 Operating Instructions Also read the operating instructions of the equipment this engine powers. Figure 6. Throttle and Choke Control Linkage in Inner Pull Configuration. W ARNING: L e t h a l E x h a u s t G a s e s ! Engine exhaust gases contain poisonous carbon monoxide. Carbon monoxide is odorless, colorless, and can cause death if inhaled. A[...]

7 Figure 8. Optional Control Panel with Engine Mounted Controls. 2. Start the engine by activating the key switch. Release the switch as soon as the engine starts. N OT E : 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. Failure to f[...]

8 Check Oil Level The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized. Check oil BEFORE EACH USE as follows: 1. Make sure the engine is stopped, level, and is cool so the oil has had time to drain into the sump. 2. T o keep dirt, debris, etc., out of the engine, clean the area around the dipstic[...]

9 Figure 9. Dipstick and Oil Fill. 4. Remove the dipstick and check the oil level. The oil level should be up to, but not over , the F mark on the dipstick. See Figure 10. Figure 10. Oil Level Marks on Dipstick. 5. If the level is low , remove the cap from the v alv e cover and add oil of the proper type, up to the F mark on the dipstick. (Refer to[...]

10 Figure 15. Optional Remote Mounted Oil Filter . Replace the oil filter as follows: 1. Before removing the oil filter , clean the area around the oil filter and housing to keep dirt and debris out of the engine. Remove the old filter . On crankcase mounted oil filter housings, a spring loaded inner cup allows automatic oil drainback into the cran[...]

11 T o access and service the oil cooler, remov e the top mounting screw and loosen the two side screws, then lift off the No. 2 side cylinder shroud. If required, remove the two screws holding the oil cooler to the blower housing. Pull the cooler away from the blower housing. Clean both sides of the cooler with a brush as shown in Figures 17 and 1[...]

12 Figure 21. Removing Elements. 3. After the paper element is removed, check the condition of the inner element. It should be replaced whenever it appears dirty , typically every other time the paper element is replaced or every 600 hours . Clean the area around the base of the inner element before removing it, so dirt does not get into the engine[...]

13 Ignition System An electronic Capacitive Discharge (CD) ignition system is used. Other than periodically checking/ replacing the spark plugs, no maintenance, timing, or adjustments are necessary or possible with this system. Check Spark Plugs Every 200 hours of operation, remove the spark plugs, check condition, and reset the gap. Replace with n[...]

14 Figure 26. Keihin T wo-Barrel Carburetor . N OT E : Carburetor adjustments should be made only after the engine has warmed up. N OT E : T o ensure correct engine operation at altitudes above 1525 meters (5000 ft.), it may be necessary to have an authorized Kohler dealer install a special high-altitude jet kit in the carburetor . If a high-altitu[...]

15 Adjust Carburetor Low Idle Speed (RPM) and Governed Idle Adjustment 1. Low Idle Speed (RPM) Setting: Place the throttle control into the idle or slow position. Hold the governor lever away from carburetor so the throttle lever is against the Idle Speed (RPM) Adjustment Screw of carburetor . See Figure 26. Set the low idle speed to 1200 RPM* (± [...]

16 T roubleshooting 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. Do not attempt to service or replace major engine components, or any item[...]

17 Specifications Model : ................................................................... CH940 .................... CH960 .................. CH980 .............................. CH1000 B o r e : ................................................ mm (in.) ..... 90 (3.54) ................. 90 (3.54) ............... 90 (3.54) ......................[...]

18 KOHLER CO. FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS LIMITED W ARRANTY SMALL OFF-ROAD AND CLASS 1 LSI 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 off-road equip ment engine. In [...]

19 Listed below are the parts covered by the Federal and California Emission Control Systems W arranty . Some parts listed below may require scheduled maintenance and are warranted up to the first scheduled replacement point for that part. The warranted parts include the following if they were present in the engine purchased: • Oxygen sensor (if [...]

ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044 FOR SALES AND SERVICE INFORMA TION IN U.S. AND CANADA, CALL 1-800-544-2444 LITHO IN U.S.A. FO RM N O .: 62 590 01-A ISSUED: 1 / 0 7 REVISED: 4 / 0 9 KohlerEngines.com[...]