Kohler Command CH620 User Manual

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Summary of Contents

Page 1 - OWNER'S MANUAL

CH18-CH26, CH620-CH750OWNER'S MANUALHORIZONTAL CRANKSHAFTCOMMAND

Page 2 - Safety Precautions

10Oil FilterOil Drain PlugOil CoolerReplace the oil filter as follows:1. Drain the oil from the engine crankcase.2. Allow the oil filter to drain.3. B

Page 3 - WARNING WARNING

11Figure 11. Air Cleaner System Components.Check the air cleaner daily or before starting theengine. Check for a buildup of dirt and debris aroundthe

Page 4

12MainElementInnerElementDustEjectorValve2. Pull the air cleaner element out of the housing.See Figure 12.Service Paper ElementEvery 100 hours of oper

Page 5 - Oil Recommendations

13Figure 14. 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. lb.).Battery Cha

Page 6 - Operating Instructions

14Carburetor Troubleshooting andAdjustmentsEngines in this series use either a one- or two-barrelcarburetor depending on model, and may also beequipp

Page 7 - Cold Weather Starting Hints

15The system requires an additional procedure forsetting the idle speed. If speed adjustments arerequired proceed as follows.1. Make any necessary spe

Page 8 - Operating

16Figure 20. Keihin Two-Barrel Carburetor.Low Idle Speed (RPM) Adjustment1. Low Idle Speed (RPM) Setting: Place the throttlecontrol into the idle or s

Page 9 - Maintenance Schedule

17TroubleshootingIf the MIL comes on, or the engine becomes hard tostart, runs roughly, or stalls at low idle speed, initialchecks should be made in t

Page 10

18SpecificationsModel: ... CH18/CH620... CH20/CH640... CH23/

Page 11

19LIMITED 2 YEAR COMMAND ENGINE WARRANTYKohler Co. warrants to the original consumer that each new COMMAND engine sold by Kohler Co. will be free from

Page 12 - Heavy-Duty Air Cleaner

2Explosive Fuel can cause fires andsevere burns.Do not fill the fuel tank while theengine is hot or running.WARNINGExplosive Fuel!Gasoline is extremel

Page 13 - Fuel System

(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 accessour we

Page 14 - Adjustments

3Safety Precautions (Cont.)Accidental Starts can cause severeinjury or death.Disconnect and ground spark plugleads before servicing.WARNINGCarbon Mono

Page 15 - Adjust Carburetor

4Figure 1. Typical Command Horizontal Shaft Carbureted Engine.Figure 2. Typical Command Horizontal Shaft EFI Engine.Air CleanerOil FillRectifier-Regul

Page 16

5Refer to Maintenance Instructions beginning onpage 8 for detailed oil check, oil change, and oil filterchange procedures.Fuel RecommendationsWARNING:

Page 17 - Troubleshooting

6Engine Identification NumbersWhen ordering parts, or in any communicationinvolving an engine, always give the Model,Specification, and Serial Numbers

Page 18 - Major Repair

7• Check that any clutches or transmissions aredisengaged or placed in neutral. This is especiallyimportant on equipment with hydrostatic drive. Thesh

Page 19 - LIMITED WARRANTY

8CoolingNOTE: If debris builds up on the grass screen orother cooling air intake areas, stop the engineimmediately and clean. Operating the enginewith

Page 20 - KohlerEngines.com

9• Replace fuel filter1 (EFI engines).Daily or BeforeStarting EngineMaintenance RequiredFrequency• Fill fuel tank.• Check oil level.• Check air cleane

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