Echo SRM-4510 User manual
1Cover
ENGLISH
OPERATOR'S MANUAL
GRASS-TRIMMER/BRUSHCUTTER
SRM-4510
WARNING
READ THE INSTRUCTIONS CAREFULLY AND FOLLOW THE
RULES FOR SAFE OPERATION.
FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY.
EN
2
Contents
For safe use of your product............................................................................................... 3
Description.......................................................................................................................... 8
Before you start .................................................................................................................. 9
Packing list ....................................................................................................................9
Assembly ....................................................................................................................... 9
U-handle version.......................................................................................................... 10
Adjusting the balance .................................................................................................. 12
Preparing the fuel ........................................................................................................ 12
Engine operation............................................................................................................... 14
Starting the engine ...................................................................................................... 14
Stopping the engine..................................................................................................... 15
Trimming operation........................................................................................................... 16
Using shoulder harness............................................................................................... 17
Basic trimming operation with nylon line cutting head ................................................. 17
Basic trimming operation with metal blade .................................................................. 19
Maintenance and care ...................................................................................................... 20
Servicing guidelines..................................................................................................... 20
Maintenance and care ................................................................................................. 20
Storage ........................................................................................................................ 25
Specifications.................................................................................................................... 26
3
For safe use of your product
For safe us e of your pro duct
Important information
WARNING
Please ensure that you read the operator's manual before using your product.
About your operator's manual
This manual contains necessary information about the assembly, operation, and maintenance of your product.
Please read it carefully and absorb its contents.
Always keep your manual in a place where it is readily accessible.
If you have lost your manual or it is damaged and no longer readable, please purchase a new one from your dealer.
The units used in this manual are SI units (International System of Units). Figures in parentheses are reference val-
ues, and there may be a slight conversion error in some cases.
Failure to do so could lead to an accident or serious injury.
Intended use of this product
This product is lightweight, high-performance, petrol engined unit designed for weed control, grass trimming and
brush cutting in areas difficult to control by any other means.
Do not use this unit for any purpose other than aforementioned.
The content of this manual may be changed without notice for the purpose of upgrades to the product. Some of the
illustrations used may differ from the product itself in order to make the explanations clearer.
Please consult your dealer if anything is unclear or of concern.
Failure to do so could lead to an accident or serious injury.
Do not modify the product
You must not modify the product.
To do so could lead to an accident or serious injury. Any malfunction resulting from a modification to the product will not be
covered by the manufacturer's warranty.
Do not use the product unless it has been checked and maintained
You must not use the product unless it has been checked and maintained. Always ensure that the product is checked
and maintained on a regular basis.
Failure to do so could lead to an accident or serious injury.
Loaning or assigning your product
When loaning your product to another party, ensure that the person borrowing the product receives the operator's
manual along with it.
If you assign your product to another party, please enclose the operator's manual with the product when handing it
over.
Failure to do so could lead to an accident or serious injury.
Users of the product
The product should not be used by:
people who are tired
people who have taken alcohol
people who are on medication
people who are pregnant
people who are in poor physical condition
people who have not read the operator's manual
children
Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their prop-
erty.
Failure to observe these instructions could lead to an accident.
The ignition system of this product generates electromagnetic fields during operation. Magnetic fields can cause
pacemaker interference or pacemaker failure. To reduce health risks, we recommend that pacemaker users consult
their physician and the pacemaker manufacturer before operating this product.
4
For safe use of your product
Vibration and cold
It is believed that a condition called Raynaud's Phenomenon which affects the fingers of certain individuals may be
brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning,
followed by loss of colour and numbness in the fingers. The following precautions are strongly recommended be-
cause the minimum exposure which might trigger the ailment is unknown.
Keep your body warm, especially the head and neck, feet and ankles, and hands and wrists.
Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and also by
not smoking.
Limit the number of hours of operation. Try to fill each day with jobs where operating the trimmer or other hand-
held power equipment is not required.
If you experience discomfort redness and swelling of the fingers, followed by whitening and loss of feeling, con-
sult your physician before exposing yourself further to cold and vibration.
Failure to observe these instructions could result in damage to your health.
Repetitive stress injuries
It is believed that over-using the muscles and tendons of the fingers, hands, arms and shoulders may cause sore-
ness, swelling, numbness, weakness and extreme pain to the areas just mentioned. Certain repetitive hand activities
may put you at a high risk for developing a repetitive stress injury (RSI). To reduce the risk of RSI, do the following:
Avoid using your wrist in a bent, extended or twisted position.
Take periodic breaks to minimize repetition and rest your hands. Reduce the speed and force in which you do the
repetitive movement.
Do exercises to strengthen hand and arm muscles.
See a doctor if you feel tingling, numbness or pain in your fingers, hands, wrists or arms. The sooner RSI is diag-
nosed, the more likely permanent nerve and muscle damage can be prevented.
Failure to observe these instructions could result in damage to your health.
Proper training
Do not permit operation without proper training and protective equipment.
Be thoroughly familiar with the controls and proper use of unit.
Know how to stop the unit and shut off the engine.
Know how to unhook a harnessed unit quickly.
Never allow anyone to use the unit without proper instruction.
Failure to observe these instructions could result in damage to your health.
Wear proper clothing.
Secure hair so it is above shoulder length.
Do not wear ties, jewellery, or loose, dangling clothing which could be caught in the
unit.
Do not wear open toed footwear, or go bare-foot or barelegged.
Failure to observe these precautions could result in damage to your sight or hearing, or lead
to a serious injury.
Wear protective gear
Always wear the following protective gear when working with the trimmer.
1. Head protection (helmet): Protects the head
2. Ear muffs or ear plugs: Protect the hearing
3. Safety goggles: Protect the eyes
4. Face shield: Protects the face
5. Safety gloves: Protect the hands from cold and vibration
6. Work clothes that fit (long sleeves, long trousers): Protect the body
7. Heavy duty, non-slip protective boots (with toecaps) or non-slip work shoes
(with toecaps): Protect the feet
8. Shin guards: Protect the legs
Failure to observe these precautions could result in damage to your sight or hearing, or
lead to a serious injury.
When necessary, please use the protective gear below.
Dust mask: Protects the breathing apparatus
Bee net: To deal with attacks by bees
WARNING
5
For safe use of your product
Warning notices
Other indicators
Environment of use and operation
Do not use the product:
under poor weather conditions.
on steep slopes or in places which give no secure foothold and are thus slippery.
at night or in dark places with poor visibility.
When using the product on a gentle slope, work in a level, contour-like motion.
A serious injury could result if you fall or slip, or fail to operate the product correctly.
For your own health and your safe and comfortable work, operate the machine within the air temperature range of
−5oC to 40oC.
Failure to observe these instructions could result in damage to your health.
Being prepared in case of an injury
In the unlikely event of an accident or injury, please ensure that you are
prepared.
First aid kit
Towels and wipes (to stop any bleeding)
Whistle or mobile phone (for calling outside help)
If you are unable to perform first aid or call for outside help, the injury could
worsen.
Put safety first in the case of fire or smoke
If fire comes from the engine or smoke appears from any area other than the exhaust vent, first distance
yourself from the product to ensure your physical safety.
Use a shovel to throw sand or other such material on the fire to prevent it from spreading, or put it out
with a fire extinguisher.
A panicked reaction could result in the fire and other damage becoming more extensive.
WARNING
DANGER WARNING CAUTION
This symbol accompanied by the
word "DANGER" calls attentions to
an act or a condition which will lead to
serious personal injury or death of op-
erators and bystanders.
This symbol accompanied by the
word "WARNING" calls attentions to
an act or a condition which can lead to
serious personal injury or death of op-
erators and bystanders.
"CAUTION" indicates a potentially
hazardous situation which, if not
avoided, may result in minor or mod-
erate injury.
Circle and slash sym-
bol means whatever is
shown is prohibited.
NOTE IMPORTANT
This enclosed message provides tips
for use, care and maintenance of the
product.
Framed text featuring the word "IM-
PORTANT" contains important infor-
mation about the use, checking,
maintenance and storage of the prod-
uct described in this manual.
6
For safe use of your product
Symbols
Symbol form/shape Symbol description/applica-
tion
Symbol form/shape Symbol description/applica-
tion
Carefully read the operator's
manual
The maximum speed of the
cutting attachment shaft in
r/min
Wear eyes, ears and head
protection Keep bystanders away 15 m
Wear foot protection and
gloves Petrol and oil mixture
Emergency stop Choke Control "Cold Start"
Position (Choke Closed)
Warning!
Thrown objects!
Choke Control "Run" Position
(Choke Open)
Warning, side thrust Carburettor adjustment
- Idle speed
Usage without shield not per-
mitted U-handle
Usage of metal blades not
permitted Loop handle
Usage of nylon line cutting
head not permitted
Beware of high-temperature
areas
Do not use the product in plac-
es with poor ventilation Engine start
Beware of fire Beware of electric shocks
7
For safe use of your product
Safety decal(s)
The safety decal shown below has been attached to the products described in this manual. Ensure that you understand what
the decal means before using your product.
If the decal becomes unreadable due to wear and tear or damage, or peels off and is lost, please purchase a replacement decal
from your dealer and attach it in the location shown in the illustrations below. Ensure that the decal is readable at all times.
(1. Part number 890617-43130)
(2. Part number X505-007710)
8
Description
Description
1. Angle transmission Having two gears to change the
angle of rotating axis.
2. Shield Device to protect the operator from accidental
contact with the cutting head and thrown objects.
3. Cut off knife Cut nylon line to adjust line length to prop-
er swath.
4. Shaft tube Part of the unit that provides a casing for
power transmission shaft.
5. U-handle Having the configuration of a bicycle handle
bar to reduce working effort compared to a loop-handle.
6. Suspension point Device on which the harness can be
hooked.
7. Ignition switch "Slide switch" mounted on top of the
throttle trigger housing, move switch forward to RUN,
backward to STOP position.
8. Throttle trigger Activated by the operator's finger for
controlling the engine speed.
9. Throttle trigger lockout Locks throttle trigger in the
idling position until you have a proper grip with your right
hand around the handle.
10. Air cleaner cover Covers air filter.
11. Fuel tank cap For closing the fuel tank.
12. Fuel tank Contains fuel and fuel filter.
13. Starter handle Pull handle to start the engine.
14. Silencer cover Cover the silencer not to make operator
touch the hot surface of silencer.
15. Spark plug
16. Shoulder harness An adjustable strap to suspend unit.
17. Type and serial number
9
Before you start
Before you start
Packing list
Assembly
The following parts are packed separately in the packing box.
When you have unpacked the box, please check the parts that it contains.
Contact your dealer if anything is missing or broken.
Engine
Operation Shaft
Handle
1. Throttle lever
2. Engine
3. Operator's manual
4. Safety goggles
5. Caution tag
6. Shaft tube
7. Locking tool
8. Socket wrench
9. L-wrenches
10. Spanner
11. Bolts
12. Shoulder harness
13. U-handle
14. Shield
WARNING
Read the operator's manual carefully to ensure that you assemble the product correctly.
Using a product that has been incorrectly assembled could lead to an accident or serious injury.
10
Before you start
U-handle version
Operation shaft assembly
1. Stand the engine upright on a level surface.
2. Slide the shaft tube assembly (A) onto the engine (B).
3. Tighten the four bolts (C) to fasten the shaft tube assembly.
U-handle assembly
1. Loosen the screw (A) of the throttle grip (B) and remove the
screw and nut (C).
2. Slip the right-side handle into the throttle grip and fit it to the
slot (D) for rotation prevention.
3. Locate the throttle grip so that the screw can pass through
the stopper hole (E).
4. Securely tighten the screw and nut.
1. Loosen handle bar support bolts (A).
2. Locate handle bar in a comfortable operating position and
tighten 4 bolts (M5×25).
3. To eliminate loosening of throttle wire (B) fix it to shaft tube
(2 places) (C) and to right hand U-handle (1 place) with wire
fixing clips (D).
G: Nuts
CAUTION
Install the handle so that it does not hide any of the
safety decals.
CAUTION
After assembly, adjust the play of wire end (E) on carburet-
tor (F) side to 1 mm - 2 mm.
Table of contents
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