Kohler COMMAND 20 HP, COMMAND 25 HP Owner's Manual

WNER

MANUAL

COMMAND

20=25

HOREONUL

CRANKSHAFT

Gas Fueled

Dual-Fueled

(LP

Gas - Gasoline)

RUN'"

Safety Precautions

To insure 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

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

Accidental Starts can cause severe injury or death.

Disconnect and

ground

spark

plug

leads before servicing.

Accidental Starts!

Disa6fing engine. Acciden fa/

sfading can cause severe injuu/r or deafh.

Before working on the engine or equipment, disable the engine as follows:

Disconnect the spark plug

lead(s).

Disconnect negative

(-)

battery cable from battery. Before disconnecting the negative

(-)

ground cable, make sure all switches are

OFF:

ON,

a spark will occur at

the ground cable terminal which

could cause an explosion if hydrogen gas or LP/gasoline fuel vapors are present.

WARNING

Rotating Parts can cause severe injury.

Stay away

while

engine is

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

not

touch

wires

while

engine

running.

Hot Parts can cause severe burns.

not

touch

engine

while

operating

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

Warning

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

Electrical Shock!

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

Safefy Precautions (Conf.)

GasoEne

is extremely flammable and its vapors can explode if ignited. Store gasoline only in approved containers, in well ventilated, unoccupied buildings, a way 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.

not start the engine near spilled fuel. Never use gasoline as a cleaning agent.

WARNING

Explosive Fuel can cause fires and severe burns.

Stop engine before filling fuel tank.

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 ventilated area where leaking gas could accumulate and endanger the safety of persons in the area.

To insure personal safety, installation and repair of LPG fuel supply systems must be performed only by qualified LPG system technicians. Improperly installed and maintained LPG equipment could cause fuel supply system or other components to malfunction, causing gas leaks.

Observe federal, state and local laws governing LPG fuel, storage, and systems.

Continued in next column

WARNING

Carbon Monoxide can cause severe nausea, fainting or death.

not operate engine in closed or

confined area.

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.

WARNING

Explosive Gas can cause fires and severe acid burns.

Charge battey only in a well ventilated area. Keep sources of ianition awav.

Explosive Gas!

Batteries produce explosive hydrogen

gas while being charged. To prevent

a fire or explosion, charge batteries only in well ventilated areas. Keep sparks, open flames, and other sources of ignition away from the battery at all times. 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:

ON,

a spark will occur at the ground cable terminal which could cause an explosion if hydrogen gas or LP/gasoline fuel vapors are present.

Congratulations

-You

have

selected

a fine four-cycle, twin 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 full pressure 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 dipstick and oil fill, air cleaner, spark plugs,

and carburetor) are easily and quickly accessible.

Parts subject to the most wear and tear (like the cylinder liner* and camshaft) are made from precision formulated

cast iron. Because the cylinder liner* can be rebored, these engines can last even longer. *CH25 engines have POWER-BORETM Cylinders. These cylinders are plated with nickel-silicon to give increased

power, virtually permanent cylinder life, superior oil control, and reduced exhaust emissions. These cylinders cannot be rebored.

Every Kohler engine is backed by a worldwide network of over

10,000

distributors and dealers. Service support is

just

phone call away. Call

1-800-544-2444

(US.

Canada) for Sales & Service assistance.

To keep your engine in top operating condition, follow the maintenance procedures in this manual.

Air Cleaner

Dipstick

tric

:igure

Typical Command Horizontal Shaft LP Gas Fueled Engine,

Oil

Recommendations

Using the proper type and weight of oil in the crankcase is extremely important.

is checking oil daily and changing oil regularly. Using oil that is incorrect or dirty can cause premature engine wear and failure.

Synthetic oil

is recommended for use in LPG-fueled engines because there is less oxidation or thickening, and deposit accumulation on intake valves is substantially reduced. Conventional petroleum-based oil may be used, but valve service will be required every

500

hours to remove the accumulated deposits. Dual-fueled engines can use conventional oil without requiring speciaVadditional valve service.

Oil

Type

Use high quality, oil of

API (American Petroleum

Institute) service class SG, SH,

or higher.

Select the viscosity based on the air temperature at the time of operation as shown in the following table.

ECOM

M EN DED

SA E VISCOSITY

GRADES

I I

-50

100

ncko

-10

-io

0 10

TEMPERATURE RANGE EXPECTED BEFORE NEXT

OIL

CHANGE

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

OW30

Figure 3. Oil Container Logo,

Refer to “Maintenance Instructions” beginning on

page

for detailed oil check, oil change, and oil

filter change procedures,

Use of synthetic oil is recommended.

Figure

Viscosity Grades Table,

LPG Engines

LPG Fuel Recommendations

Liquefied Petroleum Gas (LPG) from an appropriate LP fuel tank (supplied separately) is required to operate this engine.

WARNING: Pressurized LPG!

Fuel tanks are filled under pressure and should be

handled with care. To prevent tank damage which could

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 low areas where a spark or flame

could ignite the gas.

not start or operate this engine in a poorly ventilated area where leaking gas could accumulate and endanger the safety of persons in the area.

LPG fuel consists primarily of propane, although the fuel supplier may sometimes mix other gases with propane.

Fuel tanks must be filled only by persons qualified in the handling of LPG. Tanks are filled by weight and should not be overfilled (never to more than

percent of total capacity). An air space must be present in the tank to allow fuel to expand.

Tanks must be removed from equipment before filling.

Dual-Fuel Engines

Dual-fuel engines are designed to operate on either LPG or gasoline. For LPG operation, the above information and warnings apply. For gasoline operation,

the following information and warnings apply.

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, a way from sparks or flames.

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.

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.

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 previous season, to minimize gum deposits in your fuel system and to insure 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

or higher. In countries using the Research method, it should be

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 heads may require more frequent se nice.

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.

Model Designation

Model CH20S for example: C designates Command engine,

designates horizontal crankshaft, and 20

designates horsepower.

letter suffix designates a

specific version as follows:

Suffix Designates

S Electric Start

Engine Identification Numbers

When ordering parts, or in any communication

involving an engine, always give the

Model,

Specification, and Serial Numbers

of the engine.

CARB

The engine identification numbers appear on a decal affixed to the engine shrouding. Include letter suffixes,

if there are any.

Moderate Intermediate

Extended

125 hours 250 hours

500

hours

Record your engine identification numbers on the identification label below (Figure

for future reference.

IMPORTANT ENGINE INFORMATION THIS ENGINE MEETS U.S. EPA PHASE 1 ANC CALIFORNIA 2006 AND LATER EMISSION CONTROL REGULATIONS FOR SI SORE*

FAMILY

DISPL, (CC)

MODEL NO,

SPEC. NO,

SERIAL

NO.

EMISSION COMPLIANCE PERIOD:

E PA: CARB: THIS ENGINE

CERTIFIED TO OPERATE

ON:

REFER TO OWNER'S MANUAL FOR SAFETY, MAINTENANCE SPECS AND ADJUSTMENTS.

FOR SALES/SERVICE IN USKANADA, CALL:

www.

kohlerengines.com

1-800-544-2444

KOHLEREIFil@BIQS

KOHLER CO. KOHLER, WISCONSIN USA

*Small Off-Road Engines

7gure

Engine ldentifica tion 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 CARB emission requirements. The following table provides the Engine Compliance

Period (in hours) associated with the category descriptor found on the certification label.

Exhaust Emission Control System for models CH20 LP, CH25 LP, and CH25 Dual Fuel (open loop),

is EM. Exhaust Emission Control System for model CH25 Dual Fuel (closed loop) is EM, 02S, ECM.

Operating Instructions

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

Pre-Start Checklist

Check oil level. Add oil if low. Do not overfill. Check fuel gauge on LPG tank. Tanks should be

filled to a specific weight. To insure safety and proper fuel system operation, tanks must not be overfilled.

Check fuel lines, 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 is especially important on equipment with hydrostatic drive. The shift lever must be exactly in neutral to prevent resistance which could keep the engine from starting.

WARNING: Lethal Exhaust Gases!

Although

LPG

burns more efficiently and emits less carbon monoxide than gasoline, some carbon monoxide is produced. Avoid inhaling exhaust gases, especially over prolonged periods

time.

not allow

engine to run unattended.

Cold Weather Starting Hints

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

2. Disengage all possible external loads.

Be sure the battery is in good condition. A warm battery has much more starting capacity than a cold battery.

+ 14 hidden pages

Kohler COMMAND 20 HP, COMMAND 25 HP Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual