Maruyama P23 Le manuel du propriétaire

MARUYAMA

O P E R A T O R ' S M A N U A L

M A N U A L

D E L O P E R A D O R

M A N U E L D ' O P É R A T E U R

Pruner

Pododora

Élagueuse

P23

The P O W E R in Outdoor Power

Completely read and understand this manual PRIOR to using this product.

Lea y entienda este manual a fondo, ANTES de usar este producto.

Lisez complètement et comprenez ce manuel AVANT d'utiliser ce produit.

MARUYAMA

Limited Warranty Statement

All Maruyama commercial/ industrial products are warranted to the original purchaser to be free from defects

in material and workmanship from the date of purchase for the time periods listed as follows:

Lifetime for inner drive shaft on trimmers and brushcutters and all ignition modules.

3 years for residential, non-institutional, non-income producing use.

1 year for industrial, commercial, institutional, rental and income producing use.

Maruyama AE series engines and Kawasaki TEX45/TEX54 are covered exclusively for one additional

year of industrial, commercial, institutional, rental and income producing use (total of 2 years).

All other engines refer to engine manufacturer's warranty statement.

Any part of a Maruyama product found to be defective within the applicable warranty period shall, at

Maruyama's option, be repaired or replaced without charge. Warranty consideration is obtained by delivering

any Maruyama product believed to be defective to an Authorized Maruyama Servicing Dealer within the

applicable warranty period.

The purchaser shall not be charged for diagnostic labor that leads to the determination that a warranted part

is defective, if the diagnostic work is performed at a Maruyama Dealer.

Any warranted part which is not scheduled for replacement as required maintenance, or which is scheduled

only for regular inspection to the effect of "repair or replace as necessary" shall be warranted for the warranty

period. Any warranted part, which is scheduled for replacement as, required maintenance shall be warranted

for the period of time up to the first scheduled replacement point for that part. Maruyama Mfg. Co., Inc. is

liable for damages to other engine components caused by the failure of a warranted part still under warranty.

The purchaser is responsible for the performance of the required maintenance, as defined by Maruyama Mfg.

Co., Inc. in the Owner's/Operator's Manual.

EMISSION-RELATED PARTS WARRANTY: In addition to the above warranty coverage, Maruyama Mfg.

Co., Inc. will repair or replace, free of charge, for the original purchaser and each subsequent purchaser any

emission-related part or parts found to be defective in material and workmanship for two (2) years from origi-

nal retail delivery date except catalytic converter. Catalytic converter is warranted one year from origi-

nal retail delivery date. Emission-related parts are the carburetor assembly, the ignition coil

assembly, the ignition rotor and the spark plug, the catalytic converter and the fuel tank. Any replace-

ment part that is equivalent in performance and durability may be used in non-warranty maintenance or

repairs, and shall not reduce the warranty obligations of Maruyama Mfg. Co., Inc.

— 1 —

This warranty does not cover the following:

1. Maintenance items (excluding defects in materials and workmanship) including hoses, spark plugs,

starter rope, air and fuel filters, clutch shoes, vibration isolators, throttle cables and all cutting attach-

ments, etc.

2. Extra expenses including shipping and handling, travel, payment for lost time or pay and for any inconve-

nience and storage.

3. Alterations or modifications including aftermarket parts not authorized by Maruyama U.S., Inc.

4. Wear, accident, abuse, neglect, misuse, negligence, improper fuels, lubricants, fuel mixtures (when

applicable), or failure to operate or maintain the product in accordance with instructions approved by

Maruyama.

Repair or replacement as provided under this warranty is the exclusive remedy of the consumer. Maruyama

shall not be liable for any incidental or consequential damages for breach of any express or implied warranty

on these products except to the extent prohibited by applicable law. Any implied warranty of merchantability

or fitness for a particular purpose on these products is limited in duration to the warranty period as defined in

the limited warranty statement. Maruyama reserves the rights to change or improve the design of the product

without notice and does not assume obligation to update previously manufactured products.

This warranty provides you with specific legal rights, which may vary from state to state.

It is the Owner's and Dealer's responsibility to make sure the Warranty Registration Card is properly filled out

and mailed to Maruyama U.S., Inc. Proof of purchase and registration will be required in order to obtain war-

ranty service.

To locate an Authorized Maruyama Servicing Dealer nearest you, contact:.

Maruyama

U.S.,

Inc.

Denton, TX

76207

(940)

383-7400

[email protected]

www.maruyama-us.com

— 2 —

WARNING

:

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

.

P23

FEDERAL EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS

The U.S. Environmental Protection Agency (EPA), and Maruyama Manufacturing Company, Inc.

are pleased to explain the emission control system warranty on your small off-road engine. New

1997 and later model year small off-road engines must be designed, built and equipped, at the time

of sale, to meet the U.S. EPA regulations for small off-road engines. The equipment engine must be

free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA stan-

dards for the first two years of engine use from the date of sale to the ultimate purchaser. Maruyama

Manufacturing Company, Inc. must warrant the emission control system on your small off-road

engine for the period of time listed above provided there has been no abuse, neglect or improper

maintenance of your small off-road engine.

Emission durability of 300 hours.

Your emission control system may include parts such as the carburetor or fuel injection system, the

ignition system, and catalytic converter. Also included may be hoses, belts, and connectors and

other emission related assemblies.

Where a warrantable condition exists, Maruyama Manufacturing Company, Inc. will repair your

small off-road engine at no cost to you, including diagnosis (if the diagnostic work is performed at

an authorized dealer), parts, and labor.

MANUFACTURER'S WARRANTY COVERAGE:

The 1997 and later model year small off-road engines are warranted for two years. If any emis-

sion-related part on your engine is defective, the part will be repaired or replaced by Maruyama

Manufacturing Company, Inc. free of charge.

OWNER'S WARRANTY RESPONSIBILITIES:

(a) As the small off-road engine owner, you are responsible for the performance of the required

maintenance listed in your owner's manual.

Maruyama Manufacturing Company, Inc. recommends that you retain all receipts covering

maintenance on your small off-road engine, but Maruyama Manufacturing Company, Inc.

cannot deny warranty solely for the lack of receipts or for your failure to ensure the perfor-

mance of all scheduled maintenance. Any replacement part or service that is equivalent in

performance and durability may be used in non-warranty maintenance or repairs, and shall

not reduce the warranty obligations of the engine manufacturer.

— 3 —

(b) As the small off-road engine owner, you should be aware, however, that Maruyama

Manufacturing Company may deny you warranty coverage if your small off-road engine or a

part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

(c) You are responsible for presenting your small off-road engine to a Maruyama Manufacturing

Company, Inc. service center as soon as a problem exists. The warranty repairs should be

completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding your warranty rights and responsibilities, you should contact

Maruyama U.S., Inc. at 1-866-783-7400.

COVERAGE

Maruyama Manufacturing Company, Inc. warrants to the ultimate purchaser and each subse-

quent purchaser that your small off-road engine will be designed, built and equipped, at the time

of sale, to meet all applicable regulations. Maruyama Manufacturing Company, Inc. also warrants

to the initial purchaser and each subsequent purchaser that your small off-road engine is free

from defects in materials and workmanship which cause the engine to fail to conform with applic-

able regulations for a period of two years.

The 1997 and later model years, EPA requires manufacturers to small off-road engines for two

years. These warranty periods will begin on the date the small off-road engine is purchased by

the initial purchaser. If any emission-related part on your engine is defective, the part will be

replaced by Maruyama Manufacturing Company, Inc. at no cost to the owner.

Maruyama Manufacturing Company, Inc. shall remedy warranty defects at any authorized

Maruyama Manufacturing Company, Inc. engine dealer or warranty station. Any authorized work

done at an authorized dealer or warranty station shall be free of charge to the owner if such work

determines that a warranted part is defective. Any manufacturer-approved or equivalent replace-

ment part may be used for any warranty maintenance or repairs on emission-related parts, and

must be provided free of charge to the owner if the part is still under warranty, Maruyama

Manufacturing Company, Inc. is liable for damages to other engine components caused by the

failure of a warranted part still under warranty.

EPA considers emission-related warranted parts to include all the parts listed below. These war-

ranted parts are: the carburetor assembly, the ignition coil assembly, the ignition rotor, the

spark plug, the catalytic converter, and the fuel tank.

MAINTENANCE REQUIREMENTS

The owner is responsible for the performance of the required maintenance as defined by the

Maruyama Manufacturing Company, Inc. in the owner's manual.

LIMITATIONS

This Emission Control System Warranty shall not cover any of the following:

(a) repair or replacement required because of misuse or neglect, lack of required maintenance,

repairs improperly performed or replacements not conforming to Maruyama Manufacturing

Company, Inc. specifications that adversely affect performance and/or durability, and alter-

ations or modifications not recommended or approved in writing by Maruyama Manufacturing

Company, Inc., and

(b) replacement of parts and other services and adjustments necessary for required mainte-

nance at and after the first scheduled replacement point.

— 4 —

CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS

The California Air Resources Board (CARB), and Maruyama Manufacturing Company, Inc. are

pleased to explain the emission control system warranty on your 2011 and later small off-road

engine. In California, new small off-road engines must be designed, built and equipped to meet the

State's stringent anti-smog standards. Maruyama Manufacturing Company, Inc. must warrant the

emission control system on your small off-road engine for the period of time listed above provided

there has been no abuse, neglect or improper maintenance of your small off-road engine.

Your emission control system may include parts such as the carburetor or fuel injection system, the

ignition system, and catalytic converter. Also included may be hoses, belts, and connectors and

other emission related assemblies.

Where a warrantable condition exists, Maruyama Manufacturing Company, Inc. will repair your

small off-road engine at no cost to you, including diagnosis, parts, and labor.

MANUFACTURER'S WARRANTY COVERAGE:

The 1995 and later small off-road engines are warranted for two years. If any emission-related part

on your engine is defective, the part will be repaired or replaced by Maruyama Manufacturing

Company, Inc.

OWNER'S WARRANTY RESPONSIBILITIES:

(a) As the small off-road engine owner, you are responsible for the performance of the required

maintenance listed in your owner's manual.

Maruyama Manufacturing Company, Inc. recommends that you retain all receipts covering

maintenance on your small off-road engine, but Maruyama Manufacturing Company, Inc.

cannot deny warranty solely for the lack of receipts or for your failure to ensure the perfor-

mance of all scheduled maintenance

(b) As the small off-road engine owner, you should be aware, however, that Maruyama

Manufacturing Company may deny you warranty coverage if your small off-road engine or a

part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

(c) You are responsible for presenting your small off-road engine to a Maruyama Manufacturing

Company, Inc. distribution center as soon as a problem exists. The warranty repairs should

be completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding your warranty rights and responsibilities, you should contact

Maruyama U.S., Inc. at 1-866-783-7400.

Emission System Parts

Exhaust Emission

Carburetor

Muffler

Catalytic Converter

Ignition Coil / Magneto

Spark Plug

Air Filter

EGR Valve (piston)

Fuel Filter

Evaporative Emission

Fuel Tank

— 5 —

Contents

Limited Warranty Statement ......................................

US -6

Federal Emission Control ..........................................

California Emission Control ......................................

Contents ....................................................................

Product Description ......................................................

Introduction ..............................................................

Safety ....................................................................

Operator Safety.........................................................

Pruner Safety .......................................................

Fuel Safety...........................................................

Pruner Operating Safety.......................................

Safety and Instruction Decals................................

Assembly ....................................................................

Assembling Engine and Drive Shaft Assembly...........

Loop Handle Installation .....................................

Connecting Throttle Cable and Stop Switch Wires

...

Installing Shaft and Gearcase ...................................

Installing Guide Bar and Chain .................................

Before Operation .........................................................

Chain Oil ..........................................................

Oil and Fuel .............................................................

Recommended Oil Type .........................................

Recommended Fuel Type ..........................................

Use Of Fuel Additives ..............................................

1

3

5

6

7

8

9

10

11

12

13

14

15

Mixing Gasoline And Oil .................................................

Fuel Mixture ...............................................................

Fuel Mixture Chart .....................................................

Mixing Instructions .................................................

Starting And Stopping .................................................

To Stop The Engine .................................................

Operation ........................................................................

Maintenance...................................................................

Idle Speed Adjustment.............................................

Air Filter...................................................................

Fuel Filter .................................................................

Spark Plug ...........................................................

Cylinder Cooling Fins ................................................

Spark Arrester................................................................

Exhaust Muffler.............................................................

L

ubrication .....................................................................

General Cleaning and Tightening ..............................

Storage .............................................................................

Troubleshooting ........................................................

Maintenance Period ........................................................

Specifications ..............................................................

16

17

18

19

20

21

22

23

24

25

Page US-

US -7

1. Chain and Guide Bar

2. Pruner Head

3. Shaft Assembly

4. Safety Decal

5. Model Name

6. Loop Handle

7. Attachment Ring for Shoulder Strap

8. Shaft Grip

9. Clutch Drum Housing

10. Engine

11. Serial Number (on rear of engine)

12. Gearcase

13. Throttle Trigger and Stop Switch

14. Throttle Cable and Stop Switch Wires

15. Fuel Tank

16. Air Filter

17. Shoulder Stra

Product Description

10

6

8

9

7

5

3

2

1

4

11

17

12

13

14

15

4

16

p

Introduction

CAUTION signals a hazard that may cause minor or moderate

injury if the recommended precautions are not followed. Two

other words are also used to highlight information.

“Important” calls attention to special mechanical information

and “Note” emphasizes general information worthy of special

attention.

Thank you for purchasing a MARUYAMA product.

Maruyama, it’s distributors, and dealers want you to be

completely satisfied with your new product. Please feel free to

contact your local Authorized Service Dealer for help with

service, genuine Maruyama parts, or other information you

may require.

Safety

Whenever you contact your Authorized Service Dealer

Operator Safety

or the factory, always know the serial number of your

product. This number will help the Service Dealer or

1. Read and understand this Operator’s Manual before using

this product. Be thoroughly familiar with the proper use of

this product.

Service Representative provide exact information about

your specific product. You will find the model and serial

number located in a unique place on the product

(Product Description on page US-7).

2. Never allow children to operate the Pruner. It is not a toy.

Never allow adults to operate the unit without first reading

the Operator’s Manual.

For your convenience, write the product model name

and serial number in the space below.

3. Always wear eye protection that complies with ANSI

(American National Standards Institute) Z87-1.

US -8

Model Name ___________________________

Serial No. ___________________________

4. Always wear hearing protection.

Read this manual carefully to learn how to operate and

maintain your product correctly. Reading this manual will

help you and others avoid personal injury and damage to the

product. Although MARUYAMA designs, produces and

markets safe, state of the art products, you are responsible for

using the product properly and safely. You are also

responsible for training persons who you allow to use the

product about safe operation.

5. Always wear heavy, long pants, a long sleeved shirt, boots

and gloves. Do not wear loose clothing, jewelry, short

pants, sandals, or go barefoot. Secure hair so it is above

shoulder length.

The MARUYAMA warning system in this manual identifies

potential hazards and has special safety messages that help

you and others avoid personal injury, even death.

6. Never operate this Pruner when you are tired, ill, or under

the influence of alcohol, drugs or medication.

7. Never start or run the engine inside a closed room or

building. Breathing exhaust fumes can cause death.

DANGER, WARNlNG and CAUTION are signal words used

to identify the level of hazard. However, regardless of the

hazard, be extremely careful.

DANGER signals an extreme hazard that will cause serious

injury or death if the recommended precautions are not

followed.

WARNING signals a hazard that may cause serious injury or

death if the recommended precautions are not followed.

8. Keep handles clean of oil, fuel and dirt.

Pruner Safety

Fuel Safety

1. Make sure the Unit is assembled correctly and that the

guide bar and chain are correctly installed and securely

fastened as instructed in the Assembly section.

1. Gasoline is highly flammable and must be handled

and stored carefully. Use a container approved for

fuel to store gasoline and/ or fuel/ oil mixture.

2. Inspect the Unit before each use. Replace damaged parts.

Check for fuel leaks. Make sure all fasteners are in place 2. Mix and pour fuel outdoors, where there are no sparks or

and tightened securely. Follow the maintenance inst- flames.

ructions beginning on page US-19.

3. Do not smoke near fuel or Pruner, or while using the

3. Make sure the chain does not move at engine idle speed. Pruner.

Refer to Idle Speed Adjustment, page US-19.

4. Do not overfill the fuel tank. Stop filling 1/4-1/2 inch

4. Inspect the chain and guide bar and replace any parts that (6 mm-13 mm) from the top of the tank.

are cracked, worn or damaged before using the Pruner.

5. Wipe up any spilled fuel before starting the engine.

5. Never use a cutting chain or replacement parts that are not

approved by MARUYAMA.

6. Move the Pruner at least 10 feet (3 m) away from the

fueling location before starting the engine.

6. Maintain the Pruner according to the recommended

maintenance intervals and procedures in the Maintenance

section.

7. Shut off the engine and be certain the cutting chain has

completely stopped moving before inverting the Pruner,

performing maintenance on or working on the Pruner

machine.

8. If running problems or excessive vibration occur, stop

immediately and inspect the unit for the cause.

If the cause cannot be determined or is beyond your

ability to correct, return the Pruner to your servicing

dealer for repair.

7. Do not remove the fuel tank cap while the engine is

running, or right after stopping the engine.

8. Allow the engine to cool before refueling.

9. Drain the tank and run the engine dry before storing

the unit.

10. Store fuel and Pruner away from open flame,

sparks and excessive heat. Make sure fuel vapors

cannot reach sparks or open flames from water

heaters, furnaces, electric motors, etc.

US -9

US -10

Pruner Operating Safety

1. THIS PRUNER CAN CAUSE SERIOUS INJU-

RIES. Read the instructions carefully. Be familiar with

all controls and the proper use of the Pruner.

2. The Pruner is designed to cut wood and can there-

fore be potentially dangerous. Careless or improper use

can cause serious or even fatal injury.

3. This Pruner can conduct electricity. Do not use where

contact can be made with live electrical circuits. Never use

around electrical power sources and lines. Failure to

observe this warning can result in serious injury or death.

4. Beware of where material will fall after being cut. Do not

stand underneath falling material.

5. Inspect your work area before you begin. Remove ob-

jects such as broken glass, nails, wire and rocks which can

become dangerous projectiles if thrown by the Pruner.

Remove string, rope or similar materials which can

become entangled in the Pruner head.

6. This Pruner will throw objects and cut. Keep children,

bystanders and animals outside a 50 ft. (15m) radius from

the operator and Trimmer. Beyond the 50 ft. (15 m) there

still may be a risk of injury to bystanders from thrown

objects. It is recommended that bystanders wear eye pro-

tection. A thrown object can ricochet. (See the String

Trimmer Operating Safety)

7. If you are approached while operating the Pruner, stop the

engine and Pruner chain motion.

8. Use the Pruner only in daylight or good artificial light.

9. Do not put hands or feet near or under any rotating parts.

Keep clear at all times. Keep all parts of your body

away from the Pruner chain and hot surfaces such as the

muffler.

10. Keep firm footing and balance. Do not overreach.

11. Use the right tool for the job. Do not use the Pruner for

any job that is not recommended by MARUYAMA.

Safety and Instruction Decals

Safety decals and instructions are easily visible to the operator and are located near any area

of potential danger. Replace any decal that is damaged or lost.

ON SHAFT

(Part No.221501)

ON SHAFT

(Part No.221529)

ON SHAFT

(Part No.219937)

US -11

Assembly

Assembling Engine and Drive

3. Reposition the loop handle up or down the driveshaft

to the most comfortable position, but no closer than 9

Shaft Assembly

inches (22.8 cm) from the end of the stop switch.

The drive shaft, clutch drum housing and gearcase are

assembled. Attach the clutch drum housing to the engine

using the four M5 x 20 screws supplied with the unit.

Loop Handle Installation

The loop handle kit contains a package of four screws and

nuts and the bottom clamp for the loop handle.

1. Place the loop handle and the bottom clamp on the

shaft approximately 28cm(11 inches) from the end

of the stop switch/throttle trigger assembly.

2. Install the four screws and nuts. Leave the screws

fingertight.

Engine

M5 x 20 Screw (4)

Shaft

4. Tighten the screws and nuts.

Clutch Drum Housing

Connecting Throttle Cable and Stop

Switch Wires

1. Loosen the knob and remove the air filter cover, insert the

throttle cable through the carburetor bracket, then screw

a cable adjuster sleeve into the carburetor bracket fully.

Screw

(

4

)

2. Position the slotted fitting on the carburetor so the recessed

hole for the lug is away from the cable adjuster sleeve.

3. Rotate the carburetor throttle cam and slip the throttle cable

through the slot in the slotted fitting, making sure the cable

lug drops into the recessed hole.

Loop Handle

Bottom Clamp

Nut

(

4

)

Lock nut

Cable Adjuster Sleeve

Throttle Cable

Carburetor

Bracket

Slotted Fitting

Cable Lug

Recessed Hole

US - 12

Insert the driveshaft tube assembly into the gearcase

assembly whilerotating the driveshaft to engage the splines.

Align the locating holes and install the locat-ing screw

through the side of the gearcase. Then tight-en the clamping

screws. If properly installed, rotating the square end of the

driveshaft will cause the Rim sprocket to turn.

4. Operate the throttle trigger a few times to make sure that it

works correctly.

5. Adjust the cable adjuster sleeve so the stop on the carburetor

throttle cam just contacts the throttle stop and the cable

position keep 1-2mm play between cable lug and slotted

fittings when the throttle trigger is fully depressed.

Installing Guide Bar and Chain

1-2mm Play

6. When the throttle cable is adjusted correctly, tighten the

lock-nut.

7. Plug the stop switch wires into the matching connectors

from the engine. Note that wire polarity is not important.

8. Lap and fix the stop switch wires and connectors with

clamp.

Stop Switch Wires

Clamp

9. Reinstall the air filter cover and tighten the knob.

1. Remove the nuts from the two bar studs.

Installing Shaft and Gearcase

2. Fit the guide bar over the two bar studs.

Attach the driveshaft tube assembly to the gearcase

assembly.

If you are using the 11-inch Prolite bar, make sure the

bar stud spacer is installed over the bar studs, and is

completely against the bar mount. Place the bar in its

rearmost position.

NOTE:

Carefully inspect both ends of the driveshaft

protruding from the driveshaft tube. The squared

end of the driveshaft positions toward the connector

of the power unit. The splined end of the driveshaft

connects to the gearcase assembly.

Do not engage the chain tensioner adjustment pin in the

chain tensioner adjustment pin hole at this time.

US - 13

Before Operation

3. Place the chain over the rim sprocket and into the groove

on the guide bar. Make sure the cutting teeth edges are

facing forward on the top side of the guide bar.

Chain Oil

CAUTION

The chain and guide bar are lubricated by a centrifugal

pump. The oil discharge rate is controlled by the oil

Always wear gloves when handling the Pruner

discharge adjustment screw on the top of the pruner

chain.

head.

4. Pull the guide bar forward until the chain tensioner

Remove the oil tank filler cap fill the tank, then replace

adjustment pin hole is positioned over the chain tensioner

adjustment pin. If necessary, turn the chain tensioner

screw in the appropriate direction to align the pin with

the hole. Check that the drive links on the chain fit

correctly into the rim sprocket and guide bar groove.

the cap.

5. Install the sprocket cover onto the two bar studs. Install

the bar stud nuts, but leave the nuts finger-tight).

IMPORTANT: Only use oil designed for lubricating

chain saw chains and guide bars. Do not use waste oil.

Never run the chain dry. In temperatures below

freezing, check the chain oil viscosity (pour point).

If the oil is not rated for use below freezing, it may not

provide adequate lubrication, resulting in damage to

the oil pump, chain and guide bar.

6. Rotate the chain tensioner screw until all slack is

IMPORTANT: When filling the oil tank for the

removed between the chain and the bottom of the guide

bar, but loose enough to allow you to pull the chain

around the guide bar by hand.

first time, or when the tank is completely empty,

wait approximately 60-90 seconds before starting

the Pruner. This will give the oil time to flow from the

tank to the pump. Otherwise, an air lock can occur

which will prevent oil from moving through the pump.

This will result in damage to the chain and guide bar.

7. Tighten the bar stud nuts and recheck the chain tension.

IMPORTANT: When using a new chain, you must

check the chain tension frequently and adjust the ten-

sion as necessary until the chain breaks in. A correctly

adjusted chain gives optimum cutting performance and

prevents premature wear to both the chain and guide

bar.

US - 14

Oil and Fuel

4. Always open the fuel tank cap slowly to release

any possible overpressure inside the tank.

DANGE

R

5. Do not overfill the fuel tank. Stop filling 1/4-1/2 inch

POTENTIAL HAZARD

(6 mm-13 mm) from the top of the tank.

In certain conditions gasoline is extremely

6. Tighten the tank fuel cap carefully but firmly after

flammable and highly explosive.

refilling.

WHAT CAN HAPPEN

A fire or explosion from gasoline can burn

7. Wipe up any spilled fuel before starting the engine.

you, others and cause property damage.

8. Move the unit at least 10 feet (3 m) away from the

HOW TO AVOID THE HAZARD

fueling location and fuel storage container before

Use a funnel and fill the fuel tank outdoors,

starting the engine.

in an open area, when the engine is cold.

Wipe up any gasoline that spills.

Do not fill the fuel tank completely full.

Recommended Oil Type

Add gasoline to the fuel tank until the

level is 1/4” to 1/2” ( 6 mm to 13mm )

below the bottom of the filler neck. This

empty space in the tank allows gasoline

Only use a two-cycle engine oil formulated for use in

high performance, air cooled two cycle engines.

MARUYAMA brand 2-cycle oil is formulated for use

to expand.

in high performance, air cooled two-cycle engines.

Never smoke when handling gasoline, and

stay away from an open flame or where

gasoline fume may be ignited by a spark.

Store gasoline in an approved container and

keep it out of the reach of children.

Never buy more than a 30-day supply of

gasoline.

IMPORTANT: Do not use National Marine

Manufacturer’s Association (NMMA) or BIA

certified oils. This type of 2-cycle engine oil

does not have the proper additives for air

cooled, 2-cycle engines and can cause engine

damage.

Do not use automotive motor oil. This type of

1. Do not smoke near fuel.

oil does not have the proper additives for air

cooled, 2-cycle engines and can cause engine

2. Mix and pour fuel outdoors and where there are

damage.

no sparks or flames.

Recommended Fuel Type

WA

R

NING

POTENTIAL HAZARD

• Gasoline contains gasses that can build

up pressure inside a gas tank.

WHAT CAN HAPPEN

• Fuel can be sprayed on you when

removing gas cap.

HOW TO AVOID THE HAZARD

• Remove fuel cap slowly to avoid injury

from fuel spray.

Use clean, fresh lead-free gasoline, including oxygenated

or reformulated gasoline, with an octane rating of 89

or higher. To ensure freshness, purchase only the quantity

of gasoline that can be used in 30 days. Use of lead-free

gasoline results in fewer combustion chamber deposits and

longer spark plug life. Use of premium grade fuel is not

necessary or recommended.

Use Of Fuel Additives

IMPORTANT: NEVER USE ALCOHOL,

GASOHOL CONTAINING MORE THAN

3. Always shut off the engine before refueling.

10% ALCOHOL BECAUSE ENGINE FUEL

Never remove the fuel tank cap while the engine is

SYSTEM DAMAGE COULD RESULT.

running or right after just stopping the engine.

US - 15

DO NOT USE FUEL ADDITIVES OTHER

Fuel Mixture Chart

THAN THOSE MANUFACTURED FOR FUEL

STABILIZATION DURING STORAGE SUCH

AS MARUYAMA’S STABILIZER/

CONDITIONER OR A SIMILAR PRODUCT.

MARUYAMA’S STABILIZER/CONDITIONER

IS A PETROLEUM DISTILLATE BASED

CONDITIONER/STABILIZER.

MARUYAMA DOES NOT RECOMMEND

STABILIZERS WITH AN ALCOHOL BASE

SUCH AS ETHANOL, METHANOL OR

ISOPROPYL. ADDITIVES SHOULD NOT BE

Mixing Instructions

USED TO TRY TO ENHANCE THE POWER

OR PERFORMANCE OF MACHINE.

IMPORTANT: Never mix gasoline and oil

directly in the Pruner fuel tank.

Mixing Gasoline And Oil

1. Always mix fuel and oil in a clean container

approved for gasoline.

IMPORTANT: The engine used on this Pruner is of a

2-cycle design. The internal moving parts of the

engine, i.e., crankshaft bearings, piston pin bearings

and piston to cylinder wall contact surfaces, require

oil mixed with the gasoline for lubrication.

2. Mark the container to identify it as fuel mix for

the Pruner.

3. Use regular unleaded gasoline and fill the container

with half the required amount of gasoline.

Failure to add oil to the gasoline or failure to mix oil

with the gasoline at the appropriate ratio will cause

major engine damage which will void your warranty.

4. Pour the correct amount of oil into the container

then add the remaining amount of gasoline.

For your fuel premix, use Maruyama Premium 2-

5. Close the container tightly and shake it momentarily

cycle Oil Mix, or equivalent ISO-L-EGD & JASO

to evenly mix the oil and the gasoline before

FD oil with a minimum 89 octane high Quality

filling the fuel tank on the Pruner.

gasoline. Maruyama 2-cycle oil is specially formulat

-ed to meet the requirements of high-performance,

low-emission air-cooled 2-cycle engines. Use of other

oils may lead to service issues which may Not be

covered by your warranty.

6. When refilling the Pruner fuel tank, clean around the

fuel tank cap to prevent dirt and debris

from entering the tank during cap removal.

7. Always shake the premix fuel container momen-

tarily before filling the fuel tank.

Fuel Mixture

The fuel: oil ratio is 50 parts gasoline to 1 part oil or 50:1.

8. Always use a spout or funnel when fueling to

reduce fuel spillage.

9. Fill the tank only to within 1/4-1/2 inch (6 mm-13

mm) from the top of the tank. Avoid filling to the

top of the tank filler neck.

Note: Never use a mixing ratio less than 50:1

regardless of the oil package mixing

instructions. Ratios less than 50:1,

(for example, 60:1, 80:1, 100:1), reduce

the amount of lubrication to the internal

moving parts of the engine and can cause

damage.

US - 16

Starting And Stopping

3. Lock the throttle trigger in the fast-idle start

position, then pull the starter grip.

Before Starting The Engine

1. Fill the fuel tank as instructed in the Before Operation

section of this manual (page US-14).

2. Rest the Pruner on the ground.

3. Make sure the cutting attachment is clear of any

broken glass, nails, wire, rocks or other debris.

4. Keep all bystanders, children and animals away

from the working area.

Cold Starting Procedure

This Pruner is equipped with a fuel primer and a

choke system. To start a “cold” engine properly, perform

the following procedure:

1. Pump the primer bulb at the bottom of the carbu-

retor until fuel can be seen flowing through the

fuel return line to the fuel tank.

(Flowing fuel should be almost clear, not foamy or

full of bubbles.)

2. Move the choke lever to the closed (

) position

and move the stop switch to the “ON” position.

STOP

(

OFF

)

Stop switch

START

(

ON

)

Fas

t

-idle start

position

Fas

t

-idle start loc

k

Idle position

CAUTION

• Do not pull the Starter rope all the wayout.

WARNING

• Do not disassemble the Starter. Please ask for

an authorized MARYAMA service dealer.

4. After the engine starts, squeeze and release the

throttle trigger to return it to the idle position, then

move the choke lever to the open (

) position.

If the engine stops running before you move the

choke lever to the open (

) position:

A. Go ahead and open the choke.

B. Make sure the throttle trigger is set to the idle

position.

C. Pull the starter grip until the engine starts.

Hot Restart

To start an engine that is already warmed up (hot

restart), or if the ambient temperature exceeds 68°F

(20°C):

1. Pump the primer bulb at the bottom of the car-

buretor until fuel can be seen flowing through the

fuel return line to the fuel tank.

2. Move the choke lever to the open (

) position

and move the stop switch to the “ON” position.

3. Leave the throttle trigger in the idle position and

pull the starter grip.

US - 17

4. If the engine fails to start after three to four pulls,

follow the instruction in the Cold Starting Procedure

section (page US-17).

If the engine fails to start after you follow the

above procedures, contact an authorized

Maruyama dealer.

To Stop The Engine

1. Release the throttle trigger.

IMPORTANT: When filling an empty oil tank, wait

approximately 60-90 seconds before starting the

Pruner. This will give the oil time to flow from the

tank to the pump. Otherwise, an air lock can occur

which will prevent oil from moving through the

pump. This will result in damage to the chain and

guide bar.

2. Slide the stop switch to the “STOP” position.

STOP

(

OFF

)

Stop switch

START

(

ON

)

Fas

t

-idle start

position

Idle position

Fas

t

-idle start loc

k

IMPORTANT: Never run the chain dry.

2. The operator must be set the shaft assembly on the

operator’s right side.

3. The operator’s right hand should be holding the shaft

grip, with his or her fingers on the throttle trigger. The

right arm should be slightly bent.

Operation

4. The left hand should be holding the loop handle with the

fingers and thumb fully enclosed around the grip. The

left arm should be extended. Reposition the loop handle

up or down the driveshaft if necessary for a comfortable

position.

WARNING

POTENTIAL HAZARD

• The Pruner can conduct electricity.

WHAT CAN HAPPEN

• Contact with live electrical wires or circuits

can cause serious injury or death.

Before using the Pruner, check the following:

1. Make sure the chain oil tank on the pruner head is full.

HOW TO AVOID THE HAZARD

Hearing Protection

• Never use the Pruner around electrical lines,

circuits or components.

CAUTION

• Read the Safety instructions on page US-11

concerning proper use of the Pruner.

Eye Protection

Hand Holding Throttle Grip,

Fin

g

ers on Throttle Tri

gg

e

r

Left Arm Fully Extended,

Hand Holding Loop Handle

Right Arm

Slightly Bent

US - 18

5. The Pruner weight should be evenly distributed

between the arms.

6. Always release the throttle trigger and allow the

engine to return to idle speed when not cutting.

7. Stop the engine when moving between work sites.

• If the Pruner chain becomes jammed, stop the

engine immediately.

• Make certain all moving parts have stopped

and disconnect the spark plug before in-

specting the equipment for damage.

• Never use a Pruner that has a damaged chain

or guide bar.

Maintenance

Maintenance, replacement or repair of emission control

devices and systems may be performed by any repair

establishment or individual; however, warranty repairs

must be performed by a dealer or service center authorized

by Maruyama Manufacturing Company, Inc. The use of

parts that are not equivalent in performance and durability

to authorized parts may impair the effectiveness of the

emission control system and may have a bearing on the

outcome of a warranty claim.

Maintenance on today's low-emission engines is

even more critical for longest life and best performance.

particularly critical are air and fuel filters,

spark plug heat range, cooling air intake area and

proper gaps of coil and plug.

Engine

Idle Speed Adjustment

This Pruner is equipped with non-adjustable fuel

mixture carburetor. The engine idle speed is the only

adjustment for the operator.

WARNING

POTENTIAL HAZARD

Engine must be running to make carburetor

adjustments.

When engine is running, attached tool and

other parts is rotating/ moving and other parts are

moving.

CAUTION

WHAT CAN HAPPEN

Contact with rotating / moving tool or other

• Always wear gloves and protective clothing

moving parts could cause serious

when operating the Pruner.

personal injury or death.

HOW TO AVOID THE HAZARD

Keep hands, feet and clothing away from

attached tool and other moving parts.

Keep all bystanders and pets away from unit

while making carburetor adjustments.

The Attached Tool may be rotating/ moving during idle

speed adjustment. Wear the recommended personal

protective equipment and observe all safety instructions.

Keep hands and body away from the Attached

Tool.

When the throttle trigger is released, the engine should

return to an idle speed between 2700 and 3300 RPM, or

just below the clutch engagement speed. The Attached

Tool must not rotate/move and the engine should not

stall (stop running) at engine idle speed.

To adjust the engine idle speed, rotate the idle speed

adjustment screw on the carburetor.

• Turn the idle speed screw in (clockwise) to increase

the engine idle speed.

• Turn the screw out (counterclockwise) to decrease

the engine idle speed.

US - 19

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Maruyama P23 Le manuel du propriétaire

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