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
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
8
8
9
9
10
11
12
12
12
12
13
13
14
14
15
15
15
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
16
16
16
17
18
18
19
19
20
20
21
21
21
22
22
23
23
24
24
25
Page US-
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
11
17
12
13
14
15
4
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
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
dans d''autres langues
- English: Maruyama P23 Owner's manual
- español: Maruyama P23 El manual del propietario
Documents connexes
-
Maruyama TPP27 Le manuel du propriétaire
-
-
Maruyama M42BK-QC Le manuel du propriétaire
-
-
-
-
-
-
-