Kohler Command PRO CH640 Owner'S Manual Download Page 1 | Manualshive

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ANUAL

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ORIZONTAL

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RANKSHAFT

Liquefi ed Petroleum Gas (LPG) or LPG/Natural Gas (NG) Fueled

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WNER

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ANUAL

CH640, CH730, CH740

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Summary of Contents for Command PRO CH640

Page 1: ...1 OWNER S MANUAL HORIZONTAL CRANKSHAFT Liquefied Petroleum Gas LPG or LPG Natural Gas NG Fueled OWNER S MANUAL CH640 CH730 CH740 ...

Page 2: ... of a hazard that will or can cause minor personal injury or property damage if the caution is ignored NOTE Note is used to notify people of installation operation or maintenance information that is important but not hazard related For Your Safety These precautions should be followed at all times Failure to follow these precautions could result in injury to yourself and others California Propositi...

Page 3: ...d dealers Service support is just a phone call away Call 1 800 544 2444 U S Canada for Sales Service assistance To keep your engine in top operating condition follow the maintenance procedures in this manual Explosive Fuel LPG is extremely flammable and is heavier than air and tends to settle in low areas where a spark or flame could ignite the gas Do not start or operate this engine in a poorly v...

Page 4: ...e class SG SH SJ or higher Select the viscosity based on the air temperature at the time of operation as shown in the following table 5W 20 5W 30 RECOMMENDED SAE VISCOSITY GRADES F 20 0 20 32 40 60 50 80 100 C 30 20 10 0 10 20 30 40 TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE 10W 30 Kohler 10W 30 SAE 30 Synthetic oils will provide better starting in extreme cold below 23 C 10 F Figure 2 Visc...

Page 5: ...d endanger the safety of the operator or persons in the area do not drop or drag tanks on any surface Use a hand truck when moving or tilt the tank on its footring in a position slightly oﬀ vertical and roll it Avoid personal contact with LPG fuel to prevent frostbite See a physician if frostbite occurs WARNING Explosive Fuel LPG is extremely flammable is heavier than air and tends to settle in lo...

Page 6: ...regulator and other system components for leaks Do not start engine until leaks are eliminated Check cooling air intake areas and external surfaces of engine Make sure they are clean and unobstructed Check that the air cleaner components and all shrouds equipment covers and guards are in place and securely fastened Check that any clutches or transmissions are disengaged or placed in neutral This i...

Page 7: ...ttle control to stop or turn the ignition switch oﬀ NOTE Backfiring may occur when using the emergency stop method NG Fueled Engines 1 Remove the load by disengaging all PTO driven attachments 2 Turn fuel valve on NG line if equipped to full closed position and allow the engine to continue running until it runs out of fuel Turn ignition switch to oﬀ position Switching oﬀ the ignition prior to allo...

Page 8: ... on a spark will occur at the ground cable terminal which could cause an explosion if hydrogen gas or LPG NG fuel vapors are present Maintenance Schedule These required maintenance procedures should be performed at the frequency stated in the table They should also be included as part of any seasonal tune up Frequency Maintenance Required Daily or Before Starting Engine Check fuel gauge on propane...

Page 9: ...switch may activate a warning signal Read your equipment manuals for more information NOTE Make sure the oil level is checked BEFORE EACH USE and is maintained up to the F mark on the dipstick This includes engines equipped with Oil Sentry Change Oil and Oil Filter Change Oil Change oil after every 100 hours of operation Refill with service class SG SH SJ or higher oil as specified in the Viscosit...

Page 10: ...allow a minute for the oil to drain down and recheck the level on the dipstick Add more oil as necessary so the oil level is up to but not over the F mark on the dipstick Service Precleaner and Air Cleaner Element This engine is equipped with a replaceable high density paper air cleaner element Most engines are also equipped with an oiled foam precleaner which surrounds the paper element See Figur...

Page 11: ... Cooling Areas To ensure proper cooling make sure the flywheel screen cooling fins and other external surfaces of the engine are kept clean at all times 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 Operati...

Page 12: ...ealer or qualified LPG personnel only Servicing of filter is recommended every 500 hours Fuel Line These engines use low permeation rated fuel lines certified to comply with California and U S EPA evaporative emission requirements Fuel lines that do not meet these requirements may not be used Order replacement hose through a Kohler Service Center Carburetor Troubleshooting and Adjustments In compl...

Page 13: ...the liquid fuel flow from the supply tank before reaching the vaporizer Servicing if required is to be performed by an authorized Kohler Engine Service Dealer or qualified LPG personnel only See Figures 13 and 14 Vaporizer The vaporizer changes the Liquefied Petroleum LPG from the supply tank to a gaseous vapor state Cleaning should be performed on a regular basis more frequently under dusty or di...

Page 14: ...use Problem No Fuel Improper Fuel Dirt In Fuel Line Dirty Restricted Lock off Fuel Filter Dirty Flywheel Screen Incorrect Oil Level Engine Overloaded Dirty Air Cleaner Faulty Spark Plug Dirty Restricted Regulator Will Not Start Hard Starting Stops Suddenly Lacks Power Operates Erratically Knocks or Pings Skips or Misfires Backfires Overheats High Fuel Consumption Leakage Check Testing Every 500 ho...

Page 15: ... the engine shrouding Include letter suﬃxes if there are any See Engine Identification Numbers on page 6 Always insist on genuine Kohler parts All genuine Kohler parts meet strict standards for fit reliability and performance Major Repair Major repair information is available in Kohler Engine Service Manuals This type of repair generally requires the services of a trained mechanic and the use of s...

Page 16: ...assemblies and batteries unless supplied or installed by Kohler Co These are subject to the warranties if any of their manufacturers KOHLER CO AND OR THE SELLER SHALL NOT BE LIABLE FOR SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND including but not limited to labor costs or transportation charges in connection with the repair or replacement of defective parts IMPLIED OR STATUTOR...

Page 17: ...er Co recommends that you retain all receipts covering maintenance on the engine but Kohler Co cannot deny warranty solely for the lack of receipts or for your failure to assure that all scheduled maintenance was performed b Be aware however that Kohler Co may deny warranty coverage if the engine or a part has failed due to abuse neglect improper maintenance or unapproved modifications c For warra...

Page 18: ...t 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 b replacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled replacement point c consequential damages such as loss of time inconvenience loss of use of the e...

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Page 20: ...D SERVICE INFORMATION IN U S AND CANADA CALL 1 800 544 2444 KohlerEngines com ENGINE DIVISION KOHLER CO KOHLER WISCONSIN 53044 2011 by Kohler Co All rights reserved FORM NO 24 590 18 Rev B ISSUED 10 10 REVISED 4 11 ...

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