Page 2 - Safety Precautions; Electrical Shock can cause injury.; WARNING; WARNING; WARNING; can; CAUTION; will; NOTE; Hot Parts can cause severe burns.
2 Safety Precautions Electrical Shock! Never touch electrical wires or componentswhile the engine is running. They can besources of electrical shock. CAUTION Electrical Shock can cause injury. Do not touch wires while engine isrunning. Rotating Parts can cause severe injury. Stay away while engine i...
Page 3 - Lethal Exhaust Gases!; under all operating conditions.
3 Accidental Starts can cause severeinjury or death. Disconnect and ground spark plugleads before servicing. WARNING Carbon Monoxide can cause severenausea, fainting or death. Avoid inhaling exhaust fumes, andnever run the engine in a closedbuilding or confined area. WARNING WARNING Explosive Gas ca...
Page 5 - Oil Recommendations; Oil Type; Use high quality detergent oil of; Fuel Recommendations; General Recommendations; Do not add oil to the gasoline.; Fuel Type; unleaded; be used on EFI engines, or; Gasoline/Alcohol blends
5 Oil Recommendations Using the proper type and weight of oil in thecrankcase is extremely important. So is checking oildaily and changing oil regularly. Failure to use thecorrect oil, or using dirty oil, causes premature enginewear and failure. Oil Type Use high quality detergent oil of API (Americ...
Page 6 - Engine Identification Numbers; Numbers; Model Designation; Suffix; Operating Instructions
6 Figure 5. Engine Identification Label. EPA CARB Category C250 hours Moderate125 hours Category B500 hours Category A1000 hours Intermediate250 hours Extended500* hours Engine Identification Numbers When ordering parts, or in any communication involvingan engine, always give the Model, Specificatio...
Page 7 - Carbureted Engines Only:; Stopping
7 WARNING: Lethal Exhaust Gases! Engine exhaust gases contain poisonous carbon monoxide.Carbon monoxide is odorless, colorless, and can cause death ifinhaled. Avoid inhaling exhaust fumes, and never run theengine in a closed buildingor confined area. Cold Weather Starting Hints 1. Be sure to use the...
Page 8 - Operating; Maintenance Instructions; Before working on the engine or equipment, disable; Maintenance Schedule
8 If the battery charge is not sufficient to crank theengine, recharge the battery (see page 14). Operating Angle of Operation This engine will operate continuously at angles up to25°. Check oil level to assure crankcase oil level is atthe “FULL” mark on the dipstick. Refer to the operating instruct...
Page 9 - Check Oil Level; BEFORE EACH USE; Change Oil and Filter, Service Oil Cooler; Change Oil
9 Figure 6. Checking Oil Level. 4. Pull the dipstick out and check the oil level. The oil level should be up to, but not over, the“FULL” mark on the dipstick. See Figure 7. Check Oil Level The importance of checking and maintaining theproper oil level in the crankcase cannot beoveremphasized. Check ...
Page 11 - Service Precleaner and Air Cleaner Element; daily or before starting the
11 Replace the oil filter as follows: 1. Drain the oil from the engine crankcase. 2. Allow the oil filter to drain. 3. Before removing the oil filter, clean the area around the oil filter to keep dirt and debris out ofthe engine. Remove the old filter. Wipe off thesurface where the filter mounts. Se...
Page 12 - hours
12 Figure 13. Air Cleaner System Components – Type B (Commercial Mower). Service Precleaner If so equipped, wash and reoil the precleaner every 25 hours of operation (more often under extremely dusty or dirty conditions). 1. Loosen the cover retaining knob and remove the cover. 2. Remove the preclea...
Page 13 - Heavy-Duty Air Cleaner; To Service; Clean Air Intake/Cooling Areas; at all times; Ignition System
13 7. Reinstall the paper element, precleaner, element cover, element cover wing nut and air cleanercover. Secure cover with the cover retaining knob. 8. When element replacement is necessary, order genuine Kohler Parts. 6. Install the new inner element, Kohler Part No. 25 083 04-S followed by the o...
Page 14 - Fuel Filter; operating hours
14 Idle SpeedAdj. Screw& Spring Check Spark Plugs Every 200 hours of operation, remove the spark plugs, check condition, and reset the gap or replace with newplugs as necessary. The standard spark plug is aChampion ® RC12YC (Kohler Part No. 12 132 02-S). RFI compliant engines use a Champion ® XC...
Page 15 - Models with Governed Idle System; Fuel Line; Family; Troubleshooting; FAMILY
15 Figure 18. Family Number Location. EFI Engines: A special fuel line, capable of withstanding the high pressure of the EFI fuel system,is used (must meet SAE R9 specifications). See Figure17. If fuel line must be replaced, see your KohlerEngine Service Dealer. Carburetor Troubleshooting andAdjustm...
Page 16 - Adjust Carburetor
16 • Make sure fuel is reaching the carburetor. This includes checking the fuel lines and fuel pump forrestrictions or faulty components, replace asnecessary. • Make sure the air cleaner element is clean and all air cleaner element components are fastenedsecurely. If, after checking the items listed...
Page 18 - Do not; only; Adjustment – EFI Throttle Body; idle; Fuel Rail
18 Electronic Fuel Injection (EFI) System The EFI system is a complete, electronically-controlled, fuel management system, designed todeliver a precisely controlled fuel flow under alloperating conditions. The electronic control unit(ECU), the "brain" of the system, automatically adjustsfuel...
Page 19 - Always insist on genuine Kohler parts.; Major Repair
19 Possible Cause No Improper Dirt In Dirty Incorrect Engine Dirty Air Faulty Problem Fuel Fuel Fuel Line Grass Screen Oil Level Overloaded Cleaner Spark Plug /System Will Not Start • • • • • • • Hard Starting • • • • • Stops Suddenly • • • • • • • Lacks Power • • • • • • • Operates Erratically • • ...
Page 20 - Specifications
20 Specifications Model: .......................................................................... CV18/CV620 ................... CV20/CV640 .......................... CV23/CV675/CV680Bore: ............................... mm (in.) ............................. 77 (3.03) ........................... ...
Page 21 - LIMITED 2 YEAR COMMAND ENGINE WARRANTY
21 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 manufacturingdefects in materials or workmanship in normal service for a period of two (2) years from date of purchase, provided if is operated and...