Dolmar MH-246.4 D User guide
Original Instruction Manual
Instructions d’emploi d’origine
Originalbetriebsanleitung
Manuale di istruzioni originale
Originele gebruiksaanwijzing
Instrucciones de manejo originales
Instruções de serviço original
Original brugsanvisning
Πρωτότυπο εγχειρίδιο οδηγιών
Orijinal Kullanım Kılavuzu
WARNING!
Read and understand this Manual. Always follow safety precautions in the Manual.
Improper use can cause serious injury!
AVERTISSEMENT !
Lisez et comprenez ce manuel. Respectez toujours les précautions de sécurité gurant dans le manuel.
Une utilisation incorrecte peut provoquer des blessures graves !
WARNUNG!
Lesen und studieren Sie diese Betriebsanleitung sorgfältig. Befolgen Sie stets die Sicherheitsanweisungen dieser Betriebsanleitung.
Bei unsachgemäßer Handhabung kann es zu schweren Verletzungen kommen!
AVVERTENZA!
Leggere e comprendere il presente manuale. Seguire sempre le precauzioni di sicurezza fornite nel manuale.
L’uso improprio può causare infortuni gravi.
WAARSCHUWING!
Lees en begrijp deze gebruiksaanwijzing. Zorg altijd dat u de veiligheidsvoorzorgsmaatregelen in de gebruiksaanwijzing volgt.
Verkeerd gebruik kan leiden tot ernstig persoonlijk letsel.
¡ADVERTENCIA!
Lea y comprenda este manual. Siga siempre las precauciones de seguridad del manual.
¡Un uso incorrecto puede provocar lesiones graves!
AVISO!
Leia e compreenda este manual. Siga sempre as precauções de segurança no manual.
A utilização incorrecta pode causar ferimentos graves!
ADVARSEL!
Læs og forstå denne vejledning. Overhold altid sikkerhedsforholdsreglerne i vejledningen.
Forkert anvendelse kan medføre alvorlig tilskadekomst!
ΠΡΟΕΙΔΟΠΟΙΗΣΗ!
Διαβάστε και κατανοήστε αυτό το εγχειρίδιο. Πάντοτε να ακολουθείτε τις προφυλάξεις ασφαλείας του εγχειριδίου.
Η ακατάλληλη χρήση μπορεί να προκαλέσει σοβαρό τραυματισμό!
UYARI!
Bu Kılavuzu dikkatlice okuyun ve anladığınızdan emin olun. Bu Kılavuzda verilen güvenlik uyarılarını daima alın.
Yanlış kullanım ciddi yaralanmalara neden olabilir!
MH-246.4 D
2
Thank you very much for choosing the DOLMAR pole hedge
trimmer. We are pleased to offer you a product that is the result of
an extensive development program and many years of knowledge
and experience.
To safely obtain the best possible results from your DOLMAR pole
hedge trimmer, please read this manual thoroughly before using the
machine, and follow all instructions given herein to assure proper
operation of the DOLMAR pole hedge trimmer.
English (Original instructions)
Table of Contents Page
Symbols............................................................................................2
Safety instructions ............................................................................3
Technical data...................................................................................8
Designation of parts..........................................................................9
Connecting the trimmer unit to the pole..........................................10
Fuel/refuelling................................................................................. 11
Precautions before starting the engine...........................................13
Operating the pole hedge trimmer..................................................16
Maintenance...................................................................................18
Storage...........................................................................................23
Troubleshooting..............................................................................25
Please note the following symbols when reading this instruction manual.
SYMBOLS
WARNING/DANGER Beware of pinching
Before usage, carefully read and fully
understand the instructions in this manual
Beware of electrical lines, risk of electrical
shock
PROHIBITION Fuel (Gasoline)
No smoking Engine manual-start
No naked ame Emergency stop
Wear protective shoes First aid
Wear protective gloves ON/START
Keep working area clear of persons and
pets
OFF/STOP
Wear a protective helmet and eye and ear
protection
3
General Instructions
- Before usage, carefully read this manual and thoroughly familiarize yourself with
how to correctly handle the pole hedge trimmer. THIS EQUIPMENT CAN CAUSE
SERIOUS INJURY IF USED IMPROPERLY!
- Always provide detailed instructions on how to correctly use the pole hedge
trimmer when lending the equipment to another person. Make sure that the
instruction manual is handed over together with the pole hedge trimmer.
- First-time users should ask their dealer for basic instructions on the correct
handling of the pole hedge trimmer.
- Store this manual in a location where it is easily accessible for quick reference.
- Do not allow persons under the age of 18 to operate the pole hedge trimmer.
Individuals over 16 years old, however, may use the pole hedge trimmer for
training purposes if under the constant supervision of an adult familiar with the
operation of the pole hedge trimmer.
- Always use the pole hedge trimmer with the utmost care and attention.
-Never attempt to modify the equipment.
- Follow the regulations about handling of pole hedge trimmers in your country.
- Serious injury may result if the pole hedge trimmer is used in the following
circumstances. Do not use the pole hedge trimmer:
• When feeling tired or ill.
• After consumption of alcohol and/or medication.
• At night or in poor lighting conditions.
• During pregnancy.
Intended use
- This pole hedge trimmer has been designed for the sole purpose of trimming
hedges and bushes. Do not use the pole hedge trimmer for any other purposes.
Personal protective equipment
- Clothes worn should be functional and tight-tting without restricting movement.
Do not wear clothing or jewelry that could get entangled in underbrush or in the
machine.
- For adequate protection against injuries to head, eyes, feet, hands, as well as
hearing impairment, the following protective equipment and clothing must be
used when working with the pole hedge trimmer.
- To prevent injury to the head or the eyes, always wear a protective helmet (1)
with goggles or a visor (2).
- To avoid hearing impairment, wear adequate ear defenders (3) at all times.
- Use of a well-tting work overalls (4) is strongly recommended.
- Always wear rugged, leather working gloves (5) when operating the pole hedge
trimmer.
- When using the pole hedge trimmer, always wear sturdy shoes (6) with a non-slip
sole. Special work shoes ensure good footing and protect against injury.
- When touching blades or blade unit, wear protective gloves. Blades can cut bare
hands severely.
Work area safety
-DANGER: Keep the pole hedge trimmer away from electric lines and
communication cables. Touching or approaching high-voltage lines with pole
hedge trimmer can result in death or serious injury. Watch power lines and
electrical fences around the work area before starting operation.
- Start and operate the engine only outdoors in a well ventilated area. Operation
in a conned or poorly ventilated area can result in death due to suffocation or
carbon monoxide poisoning.
- During operation, keep bystanders, in particular children, or animals at least
15 m away from the pole hedge trimmer. Stop the engine as soon as someone
approaches.
- Before operation, examine the work area for wire fences, stones, or other solid
objects. They can damage the blades.
-WARNING: Use of this product can create dust containing chemicals which
may cause respiratory or other illnesses. Some examples of these chemicals
are compounds found in pesticides, insecticides, fertilizers and herbicides. Your
risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area,
and work with approved safety equipment, such as those dust masks that are
specially designed to lter out microscopic particles.
SAFETY INSTRUCTIONS
4
Starting the pole hedge trimmer
- Before assembling or adjusting the equipment, switch off the engine and remove
the spark plug cap.
- Before starting the pole hedge trimmer, always make sure that the machine is in
safe operational condition.
- Never attempt to start the engine if the equipment is damaged.
- Check the operation of the throttle lever safety mechanism. The lock-off lever
should have a smooth and easy action. Make sure that the lock-off lever functions
properly. Check that the handles are clean and dry and test the STOP switch to
ensure that it is functioning properly.
Always start the pole hedge trimmer in accordance with the directions provided in
this instruction manual.
Follow the instructions below to start the pole hedge trimmer
- Start the pole hedge trimmer only after the machine has been completely
assembled and all accessory parts have been attached.
- When starting the engine, keep the blades clear of your body and other object,
including the ground. The blades may move when starting and may cause serious
injury or damage to the blades and/or property.
- Before starting the engine, make sure that cutter blades are not obstructed by
any foreign objects such as stones, branches, etc.
- Stop the engine immediately if engine problems occur.
- When pulling the starter knob, hold the equipment rmly against the ground by
your left hand. Never step on the drive shaft.
- If the blades move at idle, stop the engine and adjust the idle speed down.
- When operating the pole hedge trimmer, always maintain a rm grip on both
handles. Wrap your ngers tightly around each handle, cradling the handle
between thumb and forenger. To keep the pole hedge trimmer under control at
all times, avoid changing your grip during operation. Make sure that the control
handles are in good condition and free of moisture, mud, oil or grease.
Always ensure secure and well-balanced footing
- Always stop the engine immediately and discontinue operation if engine trouble
occurs or if the machine starts making unusual noise.
- Exhaust fumes are poisonous. Never operate the machine in an enclosed room
or tunnel without ventilation (risk of suffocation and gas poisoning). Note that
carbon monoxide is an odorless gas. Always make sure that areas where the
engine is operated are adequately ventilated.
- Stop the engine when resting, or when the pole hedge trimmer is left unattended.
Place the machine in a safe location and make sure that no combustible material
is nearby.
- Never place a hot pole hedge trimmer onto dry grass or combustible material.
- To reduce the risk of re, keep the engine and mufer free of debris, leaves or
excessive lubricant.
- Never operate the engine if the mufer is malfunctioning.
- Turn off the engine before transportation.
- Always stop the engine when:
• Resting
• Transporting the machine
• Cleaning the machine
• Refuelling the machine
• Performing maintenance on the machine
• Fixing a problem with the machine
- When carrying the equipment, carry it in a horizontal position by holding the shaft.
Keep the hot mufer away from your body.
- When transporting the machine in a vehicle, always securely attach the pole
hedge trimmer to avoid leakage of residual fuel.
- Always empty the fuel tank before transporting the pole hedge trimmer in a
vehicle.
- When unloading the machine from a vehicle, take extra care not to drop the pole
hedge trimmer to the ground, as this may seriously damage the fuel tank.
- Except in an emergency, never drop the pole hedge trimmer as this may seriously
damage the machine.
- When transporting the pole hedge trimmer, always lift the machine completely off
of the ground. Never drag the engine across the ground as this may damage the
fuel tank and possibly cause a re.
- Always use the cutter cover provided to protect and secure the cutting section of
the pole hedge trimmer during transportation and storage.
- If the equipment gets heavy impact or fall, check the condition before continuing
work. Check the fuel system for fuel leakage and the controls and safety devices
for malfunction. If there is any damage or doubt, ask our authorized service
center for the inspection and repair.
- Resting
- Transporting the machine
- Cleaning the machine
- Refuelling the machine
- Performing maintenance on
the machine
- Fixing a problem with the
machine
5
Refuelling
- Before refuelling, stop the engine.
- Never refuel near naked ames.
- Do not smoke when refuelling.
- Always allow sufcient time for the engine to cool down before refuelling.
- Take care not to let your skin come into contact with petroleum products. Do not
inhale gasoline fumes and always wear protective gloves when refuelling.
Change and clean protective wear at regular intervals.
- Take extra care to avoid spilling gasoline and oil in order to avoid contamination
of the ground (environmental protection). If gasoline or oil has been spilled onto
the pole hedge trimmer, immediately wipe the surface of the pole hedge trimmer
with a rag.
To avoid spontaneous combustion, allow wet rags to dry sufciently before
discarding them into an appropriate, covered container.
- Make sure that no fuel comes in contact with your clothing. Change fuel-
contaminated clothing immediately (re hazard).
- Close the fuel tank and tighten the fuel tank cap securely. To restart the engine,
transfer the pole hedge trimmer to a location at least 3 meters away from the
place of refuelling.
- Check the fuel tank cap at regular intervals to make sure that the cap is securely
fastened.
- Never refuel the machine in an enclosed room. Fuel vapors accumulate at ground
level (risk of explosion).
- Store fuel in appropriate containers only, and make sure that stored fuel is out of
the reach of children.
Operation
- In the event of an emergency, turn off the engine immediately.
- If you feel any unusual condition (e.g. noise, vibration) during operation, switch off
the engine. Do not use the pole hedge trimmer until the cause is recognized and
solved.
- The blades continue to move for a short period after releasing the throttle trigger
or switch off the engine. Don’t rush to contact the blades.
-Never attempt to operate the equipment with one hand. Loss of control may result
in serious or fatal injury. To reduce the risk of cut injuries, keep your hands and
feet away from the blades.
- Keep your right hand under the shoulder height during operation. Otherwise you
may lose control and result in injury.
- During operation, never hit the blades against hard obstacles such stones and
metals. Take particular care when cutting hedges next to or against wire fences.
When working close to the ground, make sure that no sand, grit or stones get
between the blades.
- If the blades come into contact with stones or other solid objects, stop the engine
immediately and check the blades for damage after removing the spark plug cap.
Replace the blades if damaged.
- Never touch or approach the blades while they are moving. Blades can cut your
nger easily. When handling or approaching the blade, stop the engine and
remove the spark plug cap.
- If thick branches get jammed in the blades, immediately stop the engine, put the
pole hedge trimmer down and then remove the obstruction after removing the
spark plug cap. Check the blades for damage before using the equipment again.
- Accelerating the engine with the blades blocked increases the load and may
damage the engine and/or clutch.
- Check the cutting blades frequently during operation for cracks or blunt edges.
Before the inspection, switch off the engine and wait until the blades stop
completely. Replace damaged or dull blades immediately, even if they have only
supercial cracks.
- Do not touch the gear case. The gear case becomes hot during operation.
- Take a rest to prevent loss of control caused by fatigue. We recommend to take a
10 to 20-minute rest every hour.
- Before cutting, pull the throttle lever fully to achieve the maximum speed.
- During operation, hold the pole hedge trimmer with both hands at all times.
- Only use the pole hedge trimmer in good light and visibility conditions. Beware
of slippery and wet areas (ice and snow) during the cold season (danger of
slipping), and always ensure secure footing.
- Never use the pole hedge trimmer while standing on an unstable surface or a
steep slope.
- Never use the pole hedge trimmer while standing on a ladder.
- Never climb a tree to use the pole hedge trimmer from the tree.
- To avoid stumbling or falling over objects, never walk backwards when working
with the pole hedge trimmer.
- Always stop the engine before cleaning or servicing the machine. Also, refrain
from replacing parts before the engine has been stopped.
- Do not operate the pole hedge trimmer if the cutting unit is damaged or worn.
3 m
6
Maintenance work that can be performed by the user is limited to the activities
described in this instruction manual. Any other procedures are to be executed by an
authorized service agent.
Request DOLMAR authorized service center to inspect and maintain the pole hedge
trimmer at regular interval.
Use only genuine spare parts and accessories supplied by DOLMAR via authorized
service centers.
Use of unauthorized accessories and tools may increase the risk of accident and
injury. DOLMAR accepts no liability whatsoever for accidents or damage resulting
from the use of unauthorized accessories and parts.
Storage
- Before storing the equipment, perform full cleaning and maintenance. Fit the
blade cover.
- Empty the fuel tank before storage, and always store the pole hedge trimmer in a
well-ventilated locked room. Make sure the pole hedge trimmer is out of children’s
reach at all times.
- Do not prop the equipment against something, such as a wall. Otherwise the pole
hedge trimmer may fall suddenly and cause an injury.
First aid
As a precaution for the occurrence of an accident, make sure that a fully stocked
rst aid kit is ready at hand.
Replace any items taken from the rst aid kit as soon as possible.
When asking for help in the case of an emergency, give the
following information:
• Place of accident
• What happened
• Number of injured people
• Extent of injuries
• Your name
Maintenance instructions
- Have your equipment serviced by our authorized service center, always using
only genuine replacement parts. Incorrect repair and poor maintenance can
shorten the life of the equipment and increase the risk of accidents.
- Always do your utmost to keep pollution and noise emissions as low as possible
when operating the pole hedge trimmer. Pay special attention to correct
adjustment of the carburetor.
- Clean the pole hedge trimmer at regular intervals and periodically check whether
all nuts and bolts are securely tightened.
- Never service or store the pole hedge trimmer in the vicinity of naked ames,
sparks, etc.
- Never repair bent or broken blades by straightening or welding. It may cause
parts of the blades to come off and result in serious injury. Contact DOLMAR
authorized service center for DOLMAR genuine blades to replace them.
- To prevent further damage and/or personal injury, refrain from repairing a
malfunctioning pole hedge trimmer if not qualied to do so. For repairs always
contact your dealer or an authorized service agent.
Do not attempt to modify or remodel the pole hedge trimmer as this may affect
operation safety.
Vibration
-People with poor circulation who are exposed to excessive vibration may
experience injury to blood vessels or the nervous system. Vibration may cause
the following symptoms to occur in the ngers, hands or wrists: “Falling asleep”
(numbness), tingling, pain, stabbing sensation, alteration of skin color or of the
skin. If any of these symptoms occur, see a physician!
- To reduce the risk of “white nger disease”, keep your hands warm during
operation and well maintain the equipment and accessories.
7
For European countries only
EC Declaration of Conformity
The undersigned, Tamiro Kishima and Rainer Bergfeld, as authorized by Dolmar GmbH, declare that the DOLMAR machine(s):
Designation of Machine: Petrol Pole Hedge Trimmer
Model No./ Type: MH-246.4 D
Specications: see “TECHNICAL DATA” table
are of series production and
Conforms to the following European Directives:
2000/14/EC, 2006/42/EC
And are manufactured in accordance with the following standards or standardized documents:
EN ISO 10517
The technical documentation is on le at:
Dolmar GmbH,
Jenfelder Straße 38, Abteilung FZ, D-22045 Hamburg
The conformity assessment procedure required by Directive 2000/14/EC was in Accordance with annex V.
Measured Sound Power Level: 102.2 dB
Guaranteed Sound Power Level: 104 dB
7. 8. 2012
Tamiro Kishima
Managing Director
Rainer Bergfeld
Managing Director
8
Model MH-246.4 D
Loop handle
Dimensions (L x W x H) 2,550 mm x 242 mm x 241 mm
Net weight 6.9 kg
Volume (fuel tank) 0.6 L
Cutting length 490 mm
Maximum branch diameter 7 mm
Engine displacement 25.4 cm3
Maximum engine performance 0.77 kW at 7,000 min-1
Engine speed
at recommended max, spindle speed 10,000 min-1
Fuel consumption 0.33 kg/h
Specic fuel consumption 408 g/kWh
Idling speed 3,000 min-1
Clutch engagement speed 4,400 min-1
Carburetor
(Diaphragm carburetor) Diaphragm type
Ignition system Non-contact, magnet type
Spark plug type NGK CMR4A
Electrode gap 0.7 - 0.8 mm
Vibration per
ISO 10517
Right handle
(rear grip)
ahv eq 8.9 m/s²
Uncertainty K 3.3 m/s²
Left handle
(front grip)
ahv eq 6.3 m/s²
Uncertainty K 1.4 m/s²
Noise per EN ISO
10517
Sound pressure level 90 dB (A)
Uncertainty K 1.8 dB (A)
Sound power level 102.2 dB (A)
Uncertainty K 1.6 dB (A)
Fuel Automobile gasoline (petrol)
Engine oil API grade SF class or higher, SAE 10W-30 oil
(automobile 4-stroke engine oil)
Gear ratio 1/4.78
TECHNICAL DATA
9
Designation of parts
1 Throttle cable
2Lock-off lever
3 Throttle lever
4Stop switch
5Handle
6 Shaft
7Gear box
8 Cutter blade
9 Air cleaner
10 Fuel tank cap
11 Fuel tank
12 Clutch case
13 Spark plug cap
14 Primer pump
15 Mufer
16 Recoil starter
17 Starter knob
18 Blade cover
19 Oil cap
20 Oil tank
21 Shoulder strap
(Optional accessory)
DESIGNATION OF PARTS
21
1
2
3
4
5
6
7
8
13
17
910
11
12
14
15
19
20 16
17
18
10
WARNING:
• Make sure that the engine is turned off, and remove the spark plug cap before
assembling the pole hedge trimmer.
• Wear protective gloves!
• Secure cutting blades with the blade cover provided when connecting the trimmer
unit to the pole.
1. Remove the cap from the shaft.
2. Loosen the M5 x 16 screw and M5 x 25 bolt.
3. Insert shaft into the cover.
NOTE: Make sure that the shaft is completely inserted into the cover
(approx. 237 mm/ 9-3/8”).
If you are having trouble inserting the shaft, manually rotate the drive axle a
little and try again.
4. Make sure that the shaft is properly inserted and then tighten the M5 x 16 screw
and the M5 x 25 bolt.
ATTACHING THE HANDLE
-Fix the loop handle on the shaft as shown.
- To keep a proper distance between the grips, set the loop handle ahead of the
arrows.
USING THE SHOULDER STRAP (Optional accessory)
How to wear the shoulder strap
-Wear the shoulder strap over the left shoulder.
- Keep the pole hedge trimmer unit on the right hand side of the body.
- Attach the strap to the hanger provided on the pole hedge trimmer and adjust the
length of the strap to attain a comfortable working position.
Detachment
- In an emergency, push the notches (1) at both sides, and you can detach the
machine from you.
Be extremely careful to maintain control of the machine at this time. Do not allow
the machine to be deected toward you or anyone in the work vicinity.
WARNING: Failure to maintain complete control of the machine at all could result in
serious bodily injury or DEATH.
CONNECTING THE TRIMMER UNIT TO THE POLE
Hanger
(1)
Shoulder strap
Wear over left
shoulder
to engine
Arrow mark
M5 x 16 screw
Cap
Shaft
Drive axle Cover M5 x 25 bolt
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