Maruyama QC-E User manual

The POWER 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 complèment et comprenez ce manuel AVANT d'utiliser ce produit.
Multi-Cutter
Edger Attachment
Accesorio de bordeadora
Accessoire de coupe-bordures
QC-E/QC-ES
Cultivator Attachment
Accesorio de motocultor
Accessoire de rotoculteur
QC-T
OWNER'S/OPERATOR'S MANUAL
MANUAL DEL PROPIETARIO U OPERADOR
MANUEL DU PROPRIETAIRE/DE L'UTILISATEUR

— US-1 —
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 solid steel driveshaft and ignition coils.
5 years for qualified IRON 5-YR™ commercial, institutional, or industrial use.
1 year for residential or 2 years for commercial use with competitor’s oil.
90 days for rental use.
Engine - Refer to engine manufacturer’s warranty statement. Only Maruyama engines are
covered by this limited 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
original retail delivery date. Emission-related parts are the carburetor assembly, the ignition coil
assembly, the ignition rotor, 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.
®

— US-2 —
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 incon-
venience 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.
4770 Mercantile Drive, suite100,
Fort Worth, TX
76137 U.S.A.
[phone]
[email protected]
www.maruyama-us.com

— US-3 —
Contents
Page US-
Limited Warranty Statement..................................... 1
Contents ................................................................... 3
Introduction............................................................... 4
Safety ....................................................................... 4
Operator Safety ................................................... 4
Multi - Cutter with Tool Attachments Safety ..... 5
Fuel Safety........................................................... 5
Edger Operating Safety ....................................... 6
Cultivator Operating Safety................................. 7
Product Description .................................................. 8
Safety and Instruction Decals ................................... 9
Assembly ................................................................. 10
QC-E(Edger Attachment) .................................... 10
Installing Debris Shield.................................. 10
Installing Edger Blade.................................... 10
QC-ES(Edger Attachment).................................. 11
Installing Debris Shield.................................. 11
Installing Edger Blade.................................... 11
QC-T (Cultivator Attachment)............................. 12
Installing Shaft and Shield ............................. 12
Attaching and Detaching for the Power Unit
and the Shaft Assembly
........................... 12
Operation .................................................................. 13
QC-E/QC-ES (Multi-Cutter with Edger Attachment) .. 13
QC-T (Multi-Cutter with Cultivator Attachment) ... 15
Maintenance.............................................................. 16
Idle Speed Adjustment......................................... 16
QC-E(Edger Attachment) .................................... 16
Flexible Driveshaft......................................... 16
Gearcase ......................................................... 17
QC-ES (Edger Attachment)................................. 17
Gearcase ......................................................... 17
QC-T (Cultivator Attachment)............................. 17
Gearcase ......................................................... 17
Troubleshooting ........................................................ 18
Maintenance Period .................................................. 18
Specifications............................................................ 19

— US-4 —
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.
Whenever you contact your Authorized Service Dealer
or the factory, always know the serial number of your
product. This number will help the Service Dealer or
Service Representative provide exact information about
your specific product. You will find the model and seri-
al number located in a unique place on the product
(Product Description on page US-8).
For your convenience, write the product model name
and serial number in the space below.
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 dam-
age 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.
The MARUYAMA warning system in this manual identi-
fies potential hazards and has special safety messages that
help you and others avoid personal injury, even 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.
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 high-
light information. “Important” calls attention to special
mechanical information and “Note” emphasizes general
information worthy of special attention.
Safety
Operator Safety
1. Read and understand this Owner’s/Operator’s
Manual before using this product. Be thoroughly
familiar with the proper use of this product.
2.
Never allow children to operate the Multi-Cutter. It
is not a toy. Never allow adults to operate the unit
without first reading the Owner’s/Operator’s Manual.
3. Always wear eye protection that complies with ANSI
(American National Standards Institute) Z87-1.
4. Always wear hearing protection.
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.
6.
Never operate this Multi-Cutter 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.
8. Keep handles clean of oil, fuel and dirt.
Introduction
Model Name ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿
Serial No. ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿

— US-5 —
Multi-Cutter with Tool
Attachments Safety
1. Make sure the Unit is assembled correctly and that
the tool attachment is correctly installed and
securely fastened as instructed in the Assembly
section.
2. Inspect the Unit before each use. Replace dam-
aged parts. Check for fuel leaks. Make sure all
fasteners are in place and tightened securely.
Follow the maintenance inst-ructions beginning
on page US-16.
3. Make sure the tool attachment does not rotate at
engine idle speed. Refer to Idle Speed Adjustment,
page US-16.
4. Inspect the tool attachment head and replace any
parts that are cracked, chipped or damaged before
using the Multi-Cutter.
5. Install all required shields and guards prior to
operating the Multi-Cutter or its attachments.
Note: Remove blade cover from Hedgetrimmer
attach-ments prior to operation.
6. Never use a tool attachment head or replacement
parts that are not approved by MARUYAMA.
7. Maintain the Multi-Cutter power unit and tool
attach-ments according to the recommended main-
tenance intervals and procedures in the
Maintenance section.
8. Shut off the engine and wait until the tool attach-
ment head has completely stopped moving before
checking, performing maintenance on or working
on the Multi-Cutter.
9. 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 Multi-
Cutter with tool attachment to your servicing deal-
er for repair.
Fuel Safety
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. Mix and pour fuel outdoors, where there are no
sparks or flames.
3. Do not smoke near fuel or Multi-Cutter, or while
using the Multi-Cutter.
4. Do not overfill the fuel tank. Stop filling 1/4-1/2
in. (6 mm-13 mm) from the top of the tank.
5. Wipe up any spilled fuel before starting the
engine.
6.
Move the Multi-Cutter at least 10 ft. (3 m) away
from the fueling location before starting the engine.
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 stor-
ing the unit.
10. Store fuel and Multi-Cutter 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.
10 ft. (3 m) minimum

— US-6 —
Edger Operating Safety
1. THIS EDGER CAN CAUSE SERIOUS INJURIES.
Read the instructions carefully. Be familiar with all
controls and the proper use of the Edger.
2. Make sure the 3 mm hex wrench has been
removed from the gearcase and boss adapter
before you start the engine.
3.
Inspect your work area before you begin. Remove
objects such as broken glass, nails, wire and rocks
which can become dangerous projectiles if thrown
by the Edger. Remove string, rope or similar materi-
als which can become entangled in the Edger head.
4. This Edger will throw objects and cut. Keep chil-
dren, 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 protec-
tion. A thrown object can ricochet.
5. If you are approached while operating the Edger,
stop the engine and Edger blade rotation.
6. Never allow children to operate the Edger.
7. Use the Edger only in daylight or good artificial
light.
8. Never operate the Edger without proper guards or
other protective safety devices in place.
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 rotating Edger blade 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
Edger for any job that is not recommended by
MARUYAMA.
50 ft. (15 m) minimum

— US-7 —
Cultivator Operating Safety
1. THIS CULTIVATOR CAN CAUSE SERIOUS
INJURIES. Read the instructions carefully. Be
familiar with all controls and the proper use of the
Cultivator.
2. Avoid using the Cultivator near rocks, graval,
stones and similar material that would cause
harmful missiles.
3. Inspect your work area before you begin. Remove
objects such as broken glass, nails, wire and rocks
which can become dangerous projectiles if thrown
by the Cultivator. Remove string, rope or similar
materials which can become entangled in the
Cultivator head.
4. This Cultivator 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 protection.
A thrown object can ricochet.
5. If you are approached while operating the
Cultivator, stop the engine and cultivate tool
rotation.
6. Use the Cultivator only in daylight or good
artificial light.
7. 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 rotating tool and hot
surfaces such as the muffler.
8. If the cultivator tines become jammed, stop the
engine immediately. Make certain all moving
parts have stopped, and disconnect the spark plug
before attempting to remove any obstruction.
9. Use the right tool for the job. Do not use the
Cultivator for any job that is not recommended by
MARUYAMA.
50 ft. (15 m) minimum

— US-8 —
Product Description
1. Gearcase
2. Debris Shield
3. Shaft Assembly
4. Edger Blade
5. Wheel
1. Gearcase
2. Debris Shield
3. Shaft Assembly
4. Edger Blade
5. Wheel
3
3
4
4
2
2
5
5
1
1
QC-E
(Edger Attachment)
QC-ES
(Edger Attachment)
QC-T
(Cultivator Attachment)
1. Gearcase
2. Debris Shield
3. Shaft Assembly
4. Cultivator Tines
3
4
2
1

— US-9 —
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.
QC - E/QC - ES (Edger Attachment)
ON SHAFT
(Part No.221501)
ON SHAFT
(Part No.221502)
ON DEBRIS SHIELD
(Part No.221528)
ON SHAFT
Only for QC-E
(Part No.223926)
Lubricate drive-
shaft each 30
hours of use.
QC-T (Cultivator Attachment)
ON SHAFT
(Part No.221501)
ON SHAFT
(Part No.221502)

— US-10 —
Assembly
QC-E (Edger Attachment)
Installing Debris Shield
1. Install the collar onto the plate stud.
2.
Install the shield onto the plate stud, making sure the
shield stud fits into the matching slot in the plate.
3. Install the flat washer, lock washer and hex nut
onto the plate stud.
4.
Install the flat washer and knob onto the shield stud.
Installing Edger Blade
1. Install the boss adapter onto the splined shaft out
of the gearcase.
2. Install the edger blade, clamping washer and blade
bolt.
Note: The blade bolt has left-hand threads.
3. Align the hole in the boss adapter with the hole in
the gearcase.
4. Insert the 3 mm hex wrench into the holes in the
boss adapter and gearcase to lock the splined
shaft.
5. Tighten the blade bolt to 100 in.-lbs. (11.3 N·m).
6. Remove the 3 mm hex wrench from the boss
adapter and gearcase.
Debris Shield Guard Stud
Hex Nut
Knob
Plate
Flat Washer
Plate Stud
Collar
Lock Washer
Flat Washer
Edger Blade
Gearcase
Blade Bolt (left
hand thread)
3 mm Hex Wrench Clamping Washer
Attaching Shaft
Boss Adapter
WARNING
POTENTIAL HAZARD
• Foreign objects can be thrown by the
Edger.
WHAT CAN HAPPEN
• Contact with thrown objects can cause
personal injury.
HOW TO AVOID THE HAZARD
• Never operate the
Edger without the
debris shield in place.
CAUTION
POTENTIAL HAZARD
• If the
Edger blade is not adequately
tightened, it can come loose from the
Edger during use.
WHAT CAN HAPPEN
• This may cause damage to property or
personal injury.
HOW TO AVOID THE HAZARD
• Make sure the
Edger blade is securely
fastened to the attaching shaft in the
gearcase.

— US-11 —
QC-ES (Edger Attachment)
Installing Debris Shield
1. Install the spacer onto the plate stud.
2. Install the shield onto the plate stud, making sure the
shield stud fits into the matching slot in the plate.
3. Install the flat washer, lock washer and hex nut onto
the plate stud.
4. Install the flat washer and knob onto the shield stud.
Installing Edger Blade
1. Install the boss adapter onto the scollar onto the
attaching shaft out of the gearcase.
2. Install the edger blade, clamping washer and blade
bolt.
Note: The blade bolt has left-hand threads.
3. Align the hole in the boss adapter with the hole in
the gearcase.
4. Insert the 3 mm hex wrench into the holes in the
boss adapter and gearcase to lock the splined
shaft.
5. Tighten the blade bolt to 100 in.-lbs. (11.3 N·m).
6. Remove the 3 mm hex wrench from the boss
adapter and gearcase.
WARNING
POTENTIAL HAZARD
• Foreign objects can be thrown by the
Edger.
WHAT CAN HAPPEN
• Contact with thrown objects can cause
personal injury.
HOW TO AVOID THE HAZARD
• Never operate the
Edger without the
debris shield in place.
Debris Shield Shield Stud
Hex Nut
Knob
Plate
Flat Washer
Plate Stud
Spacer
Lock Washer
Flat Washer
CAUTION
POTENTIAL HAZARD
• If the
Edger blade is not adequately
tightened, it can come loose from the
Edger during use.
WHAT CAN HAPPEN
• This may cause damage to property or
personal injury.
HOW TO AVOID THE HAZARD
• Make sure the
Edger blade is securely
fastened to the attaching shaft in the
gearcase.
Edger Blade
Gearcase
Blade Bolt
(left hand thread)
3 mm Hex Wrench
Clamping Washer
Collar
Boss Adapter

— US-12 —
QC-T (Cultivator Attachment)
Installing Shaft and Shield
1. Attach the shaft assembly to the gearcase
assembly.
NOTE: Carefully inspect both side of the shaft
assembly. The arrow marking side of the
shaft assembly positions to the power unit.
The no marking side of the shaft assembly
connects to the gearcase assembly.
Insert the shaft assembly into the gearcase
assembly whilerotating the driveshaft to engage
the splines. Align the locating hole and install
the locating screw through the side of the gear-
case. Then tighten the clamping screw. If prop-
erly installed, rotating the end of the driveshaft
will cause the cultivator tines to move.
2. Attach the debris shield onto the shaft assembly.
Place the plastic collar onto the shaft assembly
approximately one inch from the cultivator
gearcase, locating the ends as shown in sketch.
Then place the two bracket parts onto the plas-
tic collar and fasten securely with two 6 mm
screws. Attach the shield to the bracket with
four 5 mm screws.
Attaching and Detaching for the Power
Unit and the Shaft Assembly
Attaching
1 First, loosen the clamping knob before attaching
the shaft assembly to the shaft coupler.
Note : Do not over loosen the clamping knob or it
may fall out.
2 Insert the shaft assembly to the shaft coupler with
the positioning hole faced up as shown. Connect
the both drive shafts completely in the matching
position by moving the shaft assembly to forward
Locating Hole
Shaft Assembly
Arrow Mark
Driveshaft
Gearcase
Splines
Clamping Screw
Locating Screw
Screw 6 mm (2)
Plastic Collar
Bracket
Ends
Bracket
Gearcase
One Inch
DEBRIS SHIELD
Screw 5 mm (4)
Bracket
Clamping Knob
Shaft Coupler
Positioning Lever
Positioning Hole
Shaft Assembly
Insert
TightenLoosen
Positioning
Lever
Positioning lever is
lowered state
Positioning lever is
raised state
Incorrect Assembled
Correct Assembled

— US-13 —
and backward and left turn and right turn. When
the shaft assembly is positioned correctly, spring
tensioned positioning lever will be returned to the
initial position.
3 Tighten the clamping knob firmly.
Detaching
1 First, loosen the clamping Knob before detaching
the shaft assembly to the shaft coupler.
2 Pull out the shaft assembly from the shaft coupler
while holding the positioning lever down.
3 Note : Do not over loosen the clamping knob or it
may fall out.
Operation
QC-E/QC-ES (Multi-Cutter with
Edger Attachment)
Operating Position
Before using the Edger, check the following:
1. Make sure the 3 mm hex wrench has been
removed from the gearcase and boss adapter
before you start the engine.
Edger Blade
Gearcase
Blade Bolt (left
hand thread)
3 mm Hex Wrench Clamping Washer
Attaching Shaft
Boss Adapter
WARNING
POTENTIAL HAZARD
•
Foreign objects can be thrown by
Edger.
WHAT CAN HAPPEN
•
Contact with thrown objects can
cause personal injury.
HOW TO AVOID THE HAZARD
•
Never operate the Edger without the
blade shield in place.
• Make sure the blade shield is correctly
positioned to shield operator from
thrown debris.
CAUTION
• Read the Safety instructions on US-6
concerning proper use of the Edger.
[QC-E]
Clamping Knob
Shaft Assembly
Positioning Lever
Removal
Push down
Loosen

— US-14 —
[M27QC, M30QC]
2. The Edger should be on the operator’s right side.
[M42BK-QC]
2. The operator must be set the Knapsack belt, and
the shaft assembly must be 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.
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.
5. The Edger weight should be evenly distributed
between the arms.
6. Adjust the Edger to the correct cutting depth
before you start the engine. (Refer to the figure in
nextpage.) Make sure the shield is adjusted to
shield the operator from thrown debris.
7. Make sure the blade is rotating (at least half throt-
tle) before inserting the blade into the cut. The
Edger performs best at full throttle.
8. Always release the throttle trigger and allow the
engine to return to idle speed when not cutting.
9. Stop the engine when moving between work sites.
● If the Edger blade becomes jammed, stop the
engine immediately.
● Make certain all moving parts have stopped and
disconnect the spark plug before inspecting the
equipment for damage.
● Never use a Edger that has chipped, cracked or
broken Edger blade or blade shield.
Setting Depth of Cut
IMPORTANT: Set the depth of cut before you
start the engine.
1. Loosen the knob holding the shield to the plate.
2. Rotate the shield as necessary to set the depth of
cut. Note that:
● Rotating the shield to raise the wheel increases
the depth of cut.
● Rotating the shield to lower the wheel decreases
the depth of cut.
3. Make sure the shield is positioned to protect the
operator from thrown debris, then tighten the
knob.
Edger Blade
Gearcase
Blade Bolt (left
hand thread)
3 mm Hex Wrench
Clamping Washer
Collar
Boss Adapter
Hearing
Protection Eye Protection
Right Arm
Slightly Bent Left Arm Fully
Extended, Hand
Holding Loop Handle
Hand Holding
Throttle Grip, Fingers
on Throttle Trigger
Direction of Travel
Guard Adjusted to Clear
Blade, and Guard Operator
from Thrown Debris
CAUTION
• Always wear gloves and protective
clothing when operating the Edger.
[QC-ES]

— US-15 —
QC-T (Multi-Cutter with Cultivator
Attachment)
Before using the Cultivator, check the following:
[M27QC, M30QC]
1.
The Cultivator should be on the operator’s right side.
[M42BK-QC]
1. The operator must be set the Knapsack belt, and
the shaft assembly must be on the operator’s right
side.
2. 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.
3. 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 drive-
shaft if necessary for a comfortable position.
4. Do not operate the Cultivator in hard un-tilled soil
or in rocky areas.
5. Do not operate the Cultivator in areas with vines
or tree roots.
6. Do not operate the Cultivator in water.
7. Always release the throttle trigger and allow the
engine to return to idle speed when not cultivat-
ing.
8. Stop the engine when moving between work sites
●The Cultivator should be operated only while travel-
ing forward. Working the Cultivator with a back-and-
forth motion while traveling produces the best results.
A fast or slow engine speed can be used according to
soil conditions.
●If the cultivator tines become jammed, stop the
engine immediately. Make certain all moving parts
have stopped, and disconnect the spark plug before
attempting to remove any obstruction.
●The cultivator gearcase becomes very hot during
operation. Do not touch the gearcase.
●Make certain all moving parts have stopped and dis-
connect the spark plug before inspecting the equip-
ment for damage.
●Never use Cultivator that has cracked or broken tines.
Blade Guard
Knob
Wheel
Increase the
Depth of Cut Decrease the
Depth of Cut
CAUTION
• Read the Safety instructions on page
US-7 concerning proper use of the
Cultivator.
CAUTION
• Always wear gloves and protective
clothing when operating the
Cultivator.
Direction of Travel
Cultivator Motion
[QC-ES]
[QC-E]
Knob
Shield
Wheel
Increase the
Depth of Cut
Decrease the
Depth of Cut

— US-16 —
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 autho-
rized by MARUYAMA Manufacturing Company, Inc.
The use of parts that are not equivalent in performance
and durability to authorized parts may impair the effec-
tiveness 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 perfor-
mance. particularly critical are air and fuel filters,
spark plug heat range, cooling air intake area and
proper gaps of coil and plug.
Idle Speed Adjustment
This Multi-Cutter is equipped with non-adjustable fuel
mixture carburetor. The engine idle speed is the only
adjustment for the operator.
The Attached Tool may be rotating/ moving during idle
speed adjustment. Wear the recommended personal pro-
tective 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. The correct speed for models
M27QC, M30QC are 2700 - 3300 RPM, and for
M42BK-QC is 2400 - 2800 RPM, or just below the
clutch engagement speed. The Attached Tool must not
rotate/move and the engine should not stall (stop run-
ning) 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.
If idle speed adjustment is necessary, and after adjust-
ment the Attached Tool rotates/moves or the engine
stalls, stop using the Multi-Cutter immediately!
Contact your local authorized MARUYAMA Dealer for
assistance and servicing.
QC-E (Edger Attachment)
Flexible Driveshaft
Maintenance Interval
The Edger uses a flexible driveshaft inside the drive
shaft tube. The flexible driveshaft should be lubricated
after each 30 hours of use.
Flexible Drive Shaft Lubrication
1. Loosen the two Socket head screws holding the
gearcase to the driveshaft tube and carefully
remove the gearcase from the driveshaft tube.
2. Grip the end of the flexible driveshaft and remove
it from the driveshaft tube.
3. Lubricate the flexible driveshaft with a high quali-
ty #2 lithium-base bearing lube.
WARNING
• Idle speed adjustment should be
checked each time the unit is operated.
POTENTIAL HAZARD
•
Engine must be running to make car-
buretor adjustments.
• When engine is running, attached tool
and other parts is rotating / moving
and other parts are moving.
WHAT CAN HAPPEN
•
Contact with rotating / moving tool or
other moving parts could cause seri-
ous 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.
WARNING
Idle Speed Adjustment Screw

— US-17 —
4. Reinstall the flexible driveshaft into the driveshaft
tube. Twist the flexible driveshaft as you insert it
into the to ensure that it seats into the clutch drum.
5. Reinstall the gearcase onto the driveshaft tube,
then tighten the two screws.
Gearcase
Maintenance Interval
The gearcase lubricant should be inspected after every
30 hours of use.
Gearcase Maintenance
Remove the cutting attachment and the boss adapter.
Clean any dirt and debris from the area between the
boss adapter and the gearcase. Remove the grease plug
from the side of the gearcase. While rotating the attach-
ing shaft, inject lithium-base bearing lube (P/N 211337)
through the plug hole until the gearcase is full. Re-
install the grease plug.
QC-ES (Edger Attachment)
Gearcase
Maintenance Interval
The gearcase should be inspect after each 30 hours of
use.
Gearcase Lubrication
The gearcase should be checked for lubrication after
each 30 hours of use. Grease fittings are installed. Use
#2 lithiumbase bearing lubricant.
QC-T (Cultivator Attachment)
Gearcase
Maintenance Interval
The cultivator gearcase should be inspected after each
25 hours of use.
Lubrication
The cultivator gearcase holds 1.4 ounces of lubricant. A
grease tting is located in the top of the gearcase.
Lubricant should be checked at least every 25 hours of
operation. Use a #2 lithium-based EP lubricant with
Molybdenum additive.
Gearcase Fitting
Bearing Lube
(P/N 211337) Grease Plug
Plug Hole
Gearcase
Attaching Shaft Boss Adapter
DriveShaft Tube
Flexible Driveshaft
Gearcase
#2 Lithium-base
Bearing Lube
Screw (2)
Gearcase
Attaching Shaft
Grease Fitling
Boss Adapter

— US-18 —
Troubleshooting
If further assistance is required, contact your local authorized MARUYAMA service dealer.
Maintenance Period
●: Service to be performed by an authorized MARUYAMA engine dealer.
■: Service more frequently under dusty conditions.
NOTE:
The service intervals indicated are to be used as a guide.
Service to be performed more frequently as necessary depending on operating condition.
Use MARUYAMA standard 50:1 two-stroke engine oil.
Maintenance Daily Every
25 hours
Every
50 hours
Every
100 hours
Check and replenish fuel ●
Check for fuel leakage ●
Check bolts, nuts and screws for tightness or missing ●
Check engine idle speed adjustment ●
■Clean air lter element ●
Clean spark plug and adjust eleatrode gap ●
■Remove dust and dirt from cylinder ns ●
●Clean spark arrester ●
Tighten bolts and nuts ●
●Remove carbon deposits in exhaust port ●
Replace fuel lter ●
●
Remove carbon deposits on piston head and combustion chamber
●
●Remove carbon deposits in transfer port ●
Replece fuel tube, fuel tank cap gasket It is recommended to replace every 3 years
Problem Cause Action
Engine Will Not Start • STOP switch set to off position
• Empty fuel tank
• Primer bulb wasn’t pushed enough
• Engine ooded
• Move switch to on position
• Fill fuel tank
• Press primer bulb until fuel flows
through fuel return line
•
Use warm engine starting procedure
Engine Will Not Idle Idle speed set incorrectly Set idle speed
Engine Lacks Power or Stall When
Cutting
Throttle wire has come loose
Dirty air lter
Clogged spark arrester or exhaust port.
Tighten throttle wire
Clean or replace air filter
Clean spark arrester or exhaust port.

— US-19 —
Emission durability of 300 hours.
※1. Dry weight without fuel and edger blade.
※2. Dry weight without fuel.
Specifications
M27QC with
QC-E QC-ES QC-T
Weight (lbs.) ※1 14.0 (6.3kg) ※1 14.3 (6.5kg) ※2 15.5 (7.0kg)
Engine Displacement (cm3) 25.4
Anti Vibration Dual Isolatin-grip and engine mount
Shaft Bent Flexible shaft Straight Solid Shaft
Carburetor Walbro Diaphragm Type
Ignition Syatem Solid State
Fuel Tank Capacity (qts.) 0.63 (0.6L)
Gas to Oil Ratio 50:1
Spark Plug NGK BPM8Y
Spark plug Gap (in.) .024-.028 (0.6-0.7mm)
EPA and CARB Approved Phase 3, Tier 3
M30QC with
QC-E QC-ES QC-T
Weight (lbs.) ※1 13.8 (6.3kg) ※1 14.1 (6.4kg) ※2 15.3 (7.0kg)
Engine Displacement (cm3) 30.1
Anti Vibration Dual Isolatin-grip and engine mount
Shaft Bent Flexible shaft Straight Solid Shaft
Carburetor Walbro Diaphragm Type
Ignition Syatem Solid State
Fuel Tank Capacity (qts.) 0.63 (0.6L)
Gas to Oil Ratio 50:1
Spark Plug NGK BPM8Y
Spark plug Gap (in.) .024-.028 (0.6-0.7mm)
EPA and CARB Approved Phase 3, Tier 3
M42BK-QC with
QC-E QC-ES QC-T
Weight (lbs.) ※1 27.7 (12.6kg) ※1 28.0 (12.7kg) ※2 29.3 (13.3kg)
Engine Displacement (cm3) 41.5
Anti Vibration Dual Isolatin-grip and engine mount
Shaft Bent Flexible shaft Straight Solid Shaft
Carburetor Walbro Diaphragm Type
Ignition Syatem Solid State
Fuel Tank Capacity (qts.) 1.06 (1.0L)
Gas to Oil Ratio 50:1
Spark Plug NGK BPM8Y
Spark plug Gap (in.) .024-.028 (0.6-0.7mm)
EPA and CARB Approved Phase 3, Tier 3