Kohler CS12, CS6, CS8.5, CS10, CS4 User Manual

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OWNER'S MANUAL

COMMAND PRO CS SERIES 4-12.75 HP

HORIZONTAL CRANKSHAFT

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 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.

WARNING

Explosive Fuel can cause fires and severe burns.

Stop engine before filling fuel tank.

Explosive 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 contact with hot parts or sparks from ignition. Do not start the engine near spilled fuel. Never use gasoline as a cleaning agent.

WARNING

Rotating Parts can cause severe injury.

Stay away while engine is in operation.

Rotating Parts!

Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate the engine with covers, shrouds, or guards removed.

CAUTION

Electrical Shock can cause injury.

Do not touch wires while engine is running.

Electrical Shock!

Never touch electrical wires or components while the engine is running. They can be sources of electrical shock.

WARNING

Hot Parts can cause severe burns.

Do not touch engine while operating or just after stopping.

Hot Parts!

Engine components can get extremely hot from operation. To prevent severe burns, do not touch these areas while the engine is running–or immediately after it is turned off. Never operate the engine with heat shields or guards removed.

California

Proposition 65 Warning

Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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Safety Precautions (Cont.)

 

WARNING

WARNING

WARNING

Accidental Starts can cause severe

 

Carbon Monoxide can cause

 

Explosive Gas can cause fires and

injury or death.

 

severe nausea, fainting or death.

 

severe acid burns.

Disconnect and ground spark plug

 

Do not operate engine in closed or

 

Charge battery only in a well

 

 

ventilated area. Keep sources of

lead before servicing.

 

confined area.

 

ignition away.

Accidental Starts!

Lethal Exhaust Gases!

Explosive Gas!

Disabling engine. Accidental

Engine exhaust gases contain

Batteries produce explosive

starting can cause severe injury

poisonous carbon monoxide.

hydrogen gas while being charged.

or death. Before working on the

Carbon monoxide is odorless,

To prevent a fire or explosion,

engine or equipment, disable the

colorless, and can cause death if

charge batteries only in well

engine as follows: 1) Disconnect the

inhaled. Avoid inhaling exhaust

ventilated areas. Keep sparks, open

spark plug lead(s). 2) Disconnect

fumes, and never run the engine in

flames, and other sources of ignition

negative (-) battery cable from

a closed building or confined area.

away from the battery at all times.

battery.

 

Keep batteries out of the reach of

 

 

children. Remove all jewelry when

 

 

servicing batteries.

 

 

Before disconnecting the negative

 

 

(–) ground cable, make sure all

 

 

switches are OFF. If ON, a spark will

 

 

occur at the ground cable terminal

 

 

which could cause an explosion if

 

 

hydrogen gas or gasoline vapors

 

 

are present.

Congratulations – You have selected a fine four-cycle, single cylinder, air-cooled engine. Kohler designs long life strength and on-the-job durability into each engine…making a Kohler engine dependable…dependability you can count on. Here are some reasons why:

Efficient overhead valve design and splash lubrication provide maximum power, torque, and reliability under all operating conditions.

Dependable, maintenance free electronic ignition ensures fast, easy starts time after time.

Kohler engines are easy to service. All routine service areas (like the oil fill/check plug, air cleaner, spark plug, and carburetor) are easily and quickly accessible.

Parts subject to the most wear and tear (like the cylinder liner, crankshaft, and camshaft) are made from precision formulated cast iron. Because the cylinder liner can be rebored, these engines can last even longer.

Every Kohler engine is backed by a worldwide network of over 10,000 distributors and 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.

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Kohler CS12, CS6, CS8.5, CS10, CS4 User Manual

Air Cleaner

Air Cleaner

Fuel Tank Cap

Muffler Shield

 

Cover Retaining

 

 

 

 

Fuel Tank

 

Knob

 

 

 

 

 

On/Off Switch

 

 

 

 

(some models)

 

 

 

 

Muffler

 

 

 

 

Oil Sentry

 

 

 

 

Light

 

Fuel

 

 

Spark Plug

 

 

 

 

 

Shut-Off

 

 

 

 

 

 

 

Valve Cover

 

Choke Lever

 

 

 

 

 

 

Oil Fill/

Carburetor

 

 

Throttle Lever

Oil Drain

Retractable Starter

Check Plug

Figure 1. Location of Controls and Service Points on CS Engines.

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. Failure to use the correct oil, or using dirty oil, causes premature engine wear and failure.

Oil Type

Use high quality detergent oil of API (American

Petroleum Institute) service 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.

Synthetic oils should not be used.

Figure 2. Viscosity Grades Table.

NOTE: Using other than service class SG, SH, SJ or higher oil or extending oil change intervals longer than recommended can cause engine damage.

A logo or symbol on oil containers identifies the API service class and SAE viscosity grade. See Figure 3.

Figure 3. Oil Container Logo.

Refer to “Maintenance Instructions” beginning on page 8 for detailed oil check and oil change procedures.

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Fuel Recommendations

WARNING: Explosive 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 contact with hot parts or sparks from ignition. Do not start the engine near spilled fuel. Never use gasoline as a cleaning agent.

General Recommendations

Purchase gasoline in small quantities and store in clean, approved containers. A container with a capacity of 2 gallons or less with a pouring spout is recommended. Such a container is easier to handle and helps eliminate spillage during refueling.

Do not use gasoline left over from the previous season, to minimize gum deposits in your fuel system and to ensure easy starting.

Do not add oil to the gasoline.

Do not overfill the fuel tank. Leave room for the fuel to expand.

Fuel Type

For best results use only clean, fresh, unleaded gasoline with a pump sticker octane rating of 87 or higher. In countries using the Research method, it should be 90 octane minimum.

Unleaded gasoline is recommended as it leaves less combustion chamber deposits. Leaded gasoline may be used in areas where unleaded is not available and exhaust emissions are not regulated. Be aware however, that the cylinder head will require more frequent service.

Gasoline/Alcohol blends

Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved as a fuel for Kohler engines. Other gasoline/alcohol blends are not approved.

Gasoline/Ether blends

Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline blends (up to a maximum of 15% MTBE by volume) are approved as a fuel for Kohler engines. Other gasoline/ether blends are not approved.

Engine Identification Numbers

When ordering parts, or in any communication involving an engine, always give the Model, Specification, and Serial Numbers of the engine.

The engine identification numbers appear on a decal (or decals) affixed to the engine shrouding. Include letter suffixes, if there are any.

Record your engine identification numbers on the identification label below (Figure 4) for future reference.

IMPORTANTENGINEINFORMATION

THIS ENGINE MEETS U.S. EPAPHASE II, 2002-2005

CALIFORNIA AND EC STAGE II (SN:4) EMISSION

CONTROL REGS FOR SI SMALL OFF–ROAD

ENGINES

FAMILY

TYPE APP

MODEL NO.

SPEC. NO.

DISPL. (CC)

SERIAL NO.

OEM PROD. NO.

EMISSIONCOMPLIANCEPERIOD:

EPA: CATEGORYA

CERTIFIED ON: UNLEADED GASOLINE

REFER TO OWNER'S MANUAL FOR SAFETY, MAINTENANCE SPECS,ANDADJUSTMENTS

1-800-544-2444 www.kohlerengines.com KOHLER CO. KOHLER, WISCONSIN USA

(REF:_______________ )

N432

Figure 4. Engine Identification Label.

The Emission Compliance Period referred to on the Emission Control or Air Index label indicates the number of operating hours for which the engine has been shown to meet Federal and CARB emission requirements. The following table provides the Engine Complicance Period (in hours) associated with the category descriptor found on the certification label.

Emission Compliance Period (Hours)

EPA

Category C

Category B

Category A

250 Hours

500 Hours

1000 Hours

 

CARB

Moderate

Intermediate

Extended

125 Hours

250 Hours

500 Hours

 

Refer to certification label for engine displacement.

Exhaust Emission Control System for models CS4-12.75 is EM.

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Operating Instructions

Also read the operating instructions of the equipment this engine powers.

Pre-Start Checklist

Starting

NOTE: This engine has been shipped without engine oil. Fill with oil, otherwise it will not start.

1.Turn fuel shut-off valve to ‘‘on’’ position. See Figure 6.

Check oil level. Add oil if low. Do not overfill.

Check fuel level. Add fuel if low.

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.

WARNING: 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.

Cold Weather Starting Hints

1.Be sure to use the proper oil for the temperature expected. See Figure 2 on page 4.

2.Declutch all possible external loads.

3.Set speed control at part throttle position.

4.A warm battery has much more starting capacity than a cold battery.

5.Use fresh winter grade fuel. NOTE: Winter grade gasoline has a higher volatility to improve starting. Do not use gasoline left over from summer.

Figure 6. ‘‘On’’ Position of Fuel Shut-Off Valve.

2.For a Cold Engine – Place the throttle control midway between the “slow” and “fast” positions. See Figure 5. Place the choke control into the “on” position.

For a Warm Engine (normal operating temperatures) – Place the throttle control midway between the “slow” and “fast” positions. The choke is not required to start a warm engine.

3.Start the engine as follows:

For Retractable Start Engine – Turn engine On/Off switch to ‘‘on’’ (see Figure 7) and SLOWLY pull the starter handle until just past compression – STOP! Return starter handle, pull firmly with a smooth, steady motion to start. Pull the handle straight out to avoid excessive rope wear from the starter rope guide.

Choke

Throttle

Control

Control

Figure 5. Control Panel.

Figure 7. Retractable Start Engine On/Off Switch.

Extend the starting rope periodically and check its condition. If the rope is frayed, have it replaced immediately by your Kohler Engine Service Dealer.

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