Echo SRM-310 Operator's Manual

Grass Trimmer/Brush Cutter
Operator's Manual
MODELS,
SRM - 310
SRM - 310S
SRM - 310U
Serial Number 04001001 - 04999999
WARNING
DANGER
Read rules for safe operation and instructions carefully. ECHO provides an Operator's
Manual and a Safety Manual. Both must be read and understood for proper and safe
operation.
X7502127100
X750004110
01/03
2
INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job
dependability. Read and understand this manual and the SAFETY MANUAL you found in the same package. You will
find both easy to use and full of helpful operating tips and SAFETY messages.
THE OPERATOR'S MANUAL
Read and understand this manual before operation. Keep it in a safe
place for future reference. Contains specifications and information for
operation, starting, stopping, maintenance, storage and assembly
specific to this product.
THE SAFETY MANUAL
Read and understand this manual before operation. Keep it in a safe
place for future reference. Explains possible hazards involved with the
use of trimmer/brushcuttes and the measures you should take to make
their use safer.
TABLE OF CONTENTS
Introduction ........................................................................ 2
- The Operator's Manual .............................................. 2
- The Safety manual ...................................................... 2
Manual Safety Symbols and Important Information ......... 3
Safety .................................................................................. 3
- Decals ......................................................................... 3
- International Symbols ................................................. 4
Safety Instructions ............................................................. 5
- Personal Condition and Safety Equipment ................. 5
- Extended Operation/Extreme Conditions ................... 5
- Equipment .................................................................. 6
- Safe Operation ............................................................ 7
Emission Control ................................................................ 7
Description ......................................................................... 8
- Package Contents ....................................................... 8
- SRM-310 Parts ........................................................... 9
- SRM-310 Part Descriptions ..................................... 10
Specifications .................................................................... 11
Assembly .......................................................................... 12
- Drive Shaft /Power Head .......................................... 12
- Plastic Shield Installation .......................................... 12
- Nylon Head Installation ........................................... 13
- Blade Installation ...................................................... 13
- Front Handle Installation and Adjustment ............... 14
- U-Handle Installation ............................................... 14
- Connect Throttle Linkage and Ignition Leads ........... 15
- Balance and Adjust Unit ........................................... 15
Pre-Operation ................................................................... 16
- Operation with Blades .............................................. 16
- Fuel ........................................................................... 18
Copyright© 2003 By Echo, Incorporated
All Rights Reserved.
Operation .......................................................................... 19
- Starting Cold Engine ................................................. 19
- Starting Warm Engine ............................................... 20
- Stopping Engine ........................................................ 20
Maintenance ..................................................................... 21
- Skill Levels ................................................................ 21
- Maintenance Intervals .............................................. 21
- Air Filter ................................................................... 22
- Fuel Filter ................................................................. 22
- Spark Plug ................................................................. 23
- Cooling System Cleaning .......................................... 23
- Exhaust System ........................................................ 24
- Carburetor Adjustment Emission ............................. 25
- Lubrication ................................................................ 26
- Nylon Line Replacement .......................................... 27
- Sharpening Metal Blades .......................................... 29
Troubleshooting ................................................................ 30
Storage .............................................................................. 31
Servicing Information ........................................................ 32
- Parts .......................................................................... 32
- Service ....................................................................... 32
- ECHO Consumer Product Support .......................... 32
- Warranty Card .......................................................... 32
- Additional or Replacement Manuals ........................ 32
Specifications, descriptions and illustrative material in
this literature are as accurate as known at the time of
publication, but are subject to change without notice.
Illustrations may include optional equipment and accessories, and may not include all standard equipment.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION
Throughout this manual and on the product itself, you will find safety
alerts and helpful information messages preceded by symbols or key
words. The following is an explanation of those symbols and key
words.
This symbol accompanied by the words WARNING and
DANGER calls attention to an act or condition that can
lead to serious personal injury to operator and bystanders.
The circle with the slash symbol means whatever is
shown within the circle is prohibited.
IMPORTANT The enclosed message
provides information necessary for the
protection of the unit.
NOTE This enclosed message provides
tips for use, care and maintenance of the
unit.
SAFETY
DECALS
Locate these safety decals on your unit. The complete unit illustration,
found in the "DESCRIPTION" section, will help you locate them. Make
sure the decals are legible and that you understand and follow the
instructions on them. If a decal cannot be read, a new one can be
ordered from your ECHO dealer. See PARTS ORDERING instructions
for specific information.
Debris Shield Decal
Metal Debris
Shield
Hot Surface Decal
3
4
Shaft Decal (P/N 89031749030)
WARNING
DANGER
1 This unit can be dangerous and cause serious injury if improperly
used. To reduce injury risk to operator, helpers and bystanders,
read and understand the Operator's and Safety manuals.
2 Blindness can occur from objects that are thrown or ricocheted even
with shield in place. Operators, helpers and bystanders must wear
ANSI Z87.1 approved eye protection.
3 Always wear hearing protection when operating unit.
4 Prevent accidental contact with unit and any cutting attachment.
Maintain a 15 m (50 ft.) radius, DANGER ZONE surrounding the
operator. ONLY the operator, dressed in proper protective clothing
should be in the DANGER ZONE.
5 Beware of KICKOUT (blade thrust) when using blades. Special
precautions are necessary for blade operation, see your Operator's
and Safety Manuals. ONLY install ECHO approved blades on
Brush Cutters (SRM) models equipped with proper blade shield,
U-handles, harness, blade collar, nut and cotter pin.
6 Blade/Cutting attachment does not stop immediately after releasing
throttle. Keep hands and feet clear of blade/cutting attachment
unless engine is shut off and cutting attachment is not moving.
7 INSPECT BLADES BEFORE USE.
8 DO NOT USE DAMAGED, CRACKED, BENT, DULL OR
IMPROPERLY SHARPENED BLADES.
9 Do not remove shields, modify the unit or install attachments or
parts not approved by ECHO. Approved attachment information
and replacement Operator's and Safety Manuals are available from
your ECHO dealer or by writing: ECHO, INCORPORATED, 400
OAKWOOD RD., LAKE ZURICH, IL 60047.
INTERNATIONAL SYMBOLS
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
"WARNING, SEE
OPERATOR'S
MANUAL
Hot
Surface
Emergency stop
Fuel and oil mixture
Wear eyes, ears and
head protection
Finger Severing
Carburetor adjustment
- High speed mixture
Primer Bulb
DO NOT allow
flames or sparks
near fuel.
Carburetor adjustment
- Idle speed
Ignition
ON/OFF
DO NOT smoke
near fuel.
Carburetor adjustment
- Low speed mixture
Wear hand and
foot protection
Safety/Alert
Keep bystanders and helpers
away 15 m (50 ft.).
Choke Control
"Cold Start"
Position
(Choke Closed)
Choke Control
"Run"
Position
(Choke Open)
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
SAFETY INSTRUCTIONS
PERSONAL CONDITION AND SAFETY EQUIPMENT
WARNING
DANGER
Trimmer/Brush Cutter users risk injury to themselves and others if the trimmer/brush cutter is used improperly
or safety precautions are not followed. Proper clothing and safety gear must be worn when operating a
trimmer.
Physical Condition
Hearing Protection
Your judgment and physical dexterity may not be good:
• if you are tired or sick,
• if you are taking medication,
• if you have taken alcohol or drugs.
Operate unit only if you are physically and mentally well.
ECHO recommends wearing hearing protection whenever
unit is used.
Eye Protection
Wear eye protection that meets ANSI Z87.1 or CE
requirements whenever you operate the trimmer.
Hand Protection
Wear no-slip, heavy duty work gloves to improve your
grip on the Trimmer/Brush Cutter handles. Gloves also
reduce the transmission of machine vibration to your
hands.
Proper Clothing
Wear snug fitting, durable clothing;
• Pants should have long legs, shirts with long
sleeves.
• DO NOT WEAR SHORTS,
• DO NOT WEAR TIES, SCARVES, JEWELRY.
Wear sturdy work shoes with non-skid soles;
• DO NOT WEAR OPEN TOED SHOES,
• DO NOT OPERATE UNIT BAREFOOTED.
EXTENDED OPERATION/EXTREME CONDITIONS
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 sensations followed by loss of color and
numbness in the fingers. The following precautions are strongly
recommended because the minimum exposure which might trigger the
ailment is unknown.
• Keep your body warm, especially the head, neck, feet, ankles,
hands and wrists.
• Maintain good blood circulation by performing vigorous arm
exercises during frequent work breaks and also by not smoking.
• Limit the 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, consult your physician
before further exposing yourself to cold and vibration.
5
6
Repetitive Stress Injuries
It is believed that overusing the muscles and tendons of the fingers,
hands, arms, and shoulders may cause soreness, swelling, numbness,
weakness, and extreme pain in those areas. Certain repetitive hand
activities may put you at a high risk for developing a Repetitive Stress
Injury (RSI). An extreme RSI condition is Carpal Tunnel Syndrome
(CTS), which could occur when your wrist swells and squeezes a vital
nerve that runs through the area. Some believe that prolonged exposure
to vibration may contribute to CTS. CTS can cause severe pain for
months or even years.
To reduce the risk of RSI/CTS, do the following:
• Avoid using your wrist in a bent, extended or twisted position.
Instead try to maintain a straight wrist position. Also, when grasping,
use your whole hand, not just the thumb and index finger.
• Take periodic breaks to minimize repetition and rest your hands.
• Reduce the speed and force with which you do the repetitive
movement.
• Do exercises to strengthen the hand and arm muscles.
• Immediately stop using all power equipment and consult a doctor if
you feel tingling, numbness, or pain, in the fingers, hands, wrists, or
arms. The sooner RSI/CTS is diagnosed, the more likely permanent
nerve and muscle damage can be prevented.
EQUIPMENT
WARNING
DANGER
Use only ECHO-approved attachments. Serious injury may result from the use of a non-approved attachment
combination. ECHO, INC. will not be responsible for the failure of cutting devices, attachments, or accessories
which have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this
manual and safety manual.
• Check unit for loose/missing nuts, bolts and screws. Tighten and/or
replace as needed.
• Inspect fuel lines, tank, and area around carburetor for fuel leaks. DO
NOT operate unit if leaks are found.
• Inspect shield for damage, and ensure that the cut-off knife is
securely in place. Replace if either is damaged or missing.
• Check that the cutting attachment is firmly attached and in safe
operating condition.
• Check that front loop handle and shoulder strap/ or shoulder/
waist harness are adjusted for safe, comfortable operation. See
Assembly Section for proper adjustment.
• Keep exhaust area clear of flammable debris. Avoid contact during
and immediately after operation.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
SAFE OPERATION
WARNING
DANGER
Do not operate this product indoors or in inadequately ventilated
areas. Engine exhaust contains poisonous emissions and can cause
serious injury or death.
Provide Safety Instructions To All Operators
• Provide all operators of this equipment with the Operator's Manual
and Safety Manual for instructions on safe operation.
Keep A Firm Grip
• Hold the front and rear handles using both hands, with thumbs and
fingers encircling the handles
Keep A Solid Stance
• Maintain footing and balance at all times. Do not stand on slippery,
uneven or unstable surfaces. Do not work in odd positions or on
ladders. Do not over reach.
EMISSION CONTROL
EPA Phase 2
The emission control system for these engines is EM (Engine Modification).
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY: 3EHXS.0314RA DISPLACEMENT: 30.5 CC
EMISSION COMPLIANCE PERIOD : 300 HRS.
THIS ENGINE MEETS U.S. EPA PHASE II EMISSION REGULATIONS FOR SMALL NONROAD ENGINES. REFER TO
OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS
AND ADJUSTMENTS.
An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by
engine FAMILY).
PRODUCT EMISSION DURABILITY
The 300 hour emission durability period is the time span selected by the manufacturer certifying the engine emissions
output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed
in the Maintenance Section of this manual.
7
8
DESCRIPTION
Your new Echo product has been factory pre-assembled for your convenience. Due to packaging restrictions, shield
installation and other final assembly may be necessary.
Check the contents carefully, and notify your retailer or ECHO Dealer immediately if any parts are missing or damaged.
Use the contents list below to check for missing parts.
PACKAGE CONTENTS
MODEL
ITEM
QTY
29
DESCRIPTION
310
310S
310U
1
1
P o w er H ead
!
!
!
2
1
Drive Shaft Assembly w /Gear Housing
!
!
!
3
1
Front Handle
!
!
!
4
1
Front Handle Bracket
!
!
!
5
4
5 mm x 35 mm screw s
!
!
!
6
4
5 mm nuts
!
!
!
7
1
Nylon Trimmer Head
!
!
!
8
1
Plastic Debris Shield
!
!
!
9
1
Shield Plate
!
!
!
10
3
5 mm x 18 mm screw s (Shield Plate-Gear Case)
!
!
!
11
1
Metal Shield
!
!
!
12
1
Metal Shield Bracket
!
!
!
13
3
5 mm x 16 mm screw s (Shield-Gear Case)
!
!
!
14
2
5 mm x 8 mm screw s (Bracket-Shield)
!
!
!
15
4
5 mm nuts (Bracket-Shield & Gear Case)
!
!
!
16
4
5 mm lockw ashers (Bracket-Shield & Gear Case)
!
!
!
!
!
17
1
Standard Shoulder Harness
18
1
Shoulder Harness With Hip Pad
19
1
Safety Glasses
!
!
!
!
!
!
20
1
Echo 2-Stroke Oil
21
1
U-Handle Assembly
1
8 mm hex head bolt
!
1
8 mm flat w asher
!
24
10
!
!
20
!
25
1
8 mm x 10 mm Open-end w rench
!
!
!
26
1
Combination Socket/Screw driver Tool (Scrench)
!
!
!
27
1
Locking Tool
!
!
!
28
1
4 mm "L" hex w rench
!
!
!
29
1
Operator's Manual
!
!
!
30
1
Safety Manual
!
!
!
31
1
Warranty Registration Card
!
!
!
32
1
Limited Warranty Statement
!
!
!
Safety Video (Recommended)
32
!
22
33
31
!
23
2 mm x 25 mm Cotter Pins
30
Optional
IMPORTANT This spark ignition system complies with Canadian ICES-002.
33
24
28
27
25
26
19
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
17
MODEL SRM-310 PARTS
18
16
19
24
20
23
6
7
5
22
21
4
3
1
2
8
9
14
10
4
12
10
3
11
6
1
13
15
9
10
MODEL SRM-310 PART DESCRIPTIONS
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.
POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System, and Recoil Starter.
GRIP - Rear (right hand) handle.
THROTTLE TRIGGER LOCKOUT - This lever must be held during aceleration. Operation of the throttle trigger is
prevented unless throttle trigger lockout lever is engaged.
STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to
RUN, BACK to STOP.
FRONT HANDLE - Provides a secure forward grip for holding unit. Must be positioned for proper cutting attitude
and operator comfort.
DRIVE SHAFT ASSEMBLY - Includes the Rear (right hand) Handle assembly (Model 310, 310S), Gear Housing
assembly, Blade attachment parts, Flexible Drive Cable (SRM-310S has a solid steel drive shaft) and Safety Decal.
NYLON CUTTING ATTACHMENT - Contains replaceable nylon trimming line that advances when the trimmer head
is tapped against the ground while the head is turning at normal operating speed.
CUT-OFF KNIFE - Automatically trims line to the correct length (5 in.) after head is tapped on the ground while nylon
cutting attachment is turning. If trimmer is operated without a cut-off knife, the line will become too long, the engine
will overheat and engine damage may occur.
PLASTIC DEBRIS SHIELD ASSEMBLY - Deflects debris. MUST be installed on unit before Nylon Line Head use
(See Assembly Instructions). Shield assembly includes the Cut-Off Knife and Safety Decal. Mounts on the Gear
Housing Assembly just above the cutting attachment. Helps protect the operator by deflecting debris produced
during the trimming operation. This shield must be replaced with the steel shield for blade use.
THROTTLE TRIGGER - Controls engine speed. Spring loaded to return to idle when released. During acceleration,
press trigger gradually for best operating technique.
U-HANDLE - Provides secure two-handed control of trimmer/brushcutter. Required for metal blade operation.
BLADES - Circular steel blades for grass, weeds, or brush cutting applications. (Harness, metal shield, and U-handle
required for blade operation.)
METAL BLADE SHIELD - Required when unit is equipped with blades. Do not operate unit without shield.
SHOULDER HARNESS - An adjustable shoulder strap that suspends the unit from the operator's shoulder. Using
the strap reduces operator fatigue and enhances safety.
HIP PAD - Used to protect hip/leg and clothing when using U-handle equipped unit.
CHOKE - Adjusts Fuel/Air ratio for starting or running engine. The choke control is located at the top of the air filter
case. Move choke lever to "Cold Start" (
) to close choke for cold starting. Move choke lever to "Run" (
)
position to open choke.
SPARK PLUG - Provides spark to ignite fuel mixture.
TOP GUARD - Protects operator's arm from the hot engine during normal operation.
SPARK ARRESTOR - CATALYTIC MUFFLER / MUFFLER -The muffler or catalytic muffler controls exhaust noise
and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep
exhaust area clear of flammable debris.
FUEL TANK - Holds fuel and contains the fuel filter.
RECOIL STARTER HANDLE - Starts engine. Pull handle slowly until starter engages, then quickly and firmly.
When engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.
FUEL TANK CAP - Covers and seals fuel tank opening.
PRIMER BULB - Primes carburetor for quick starting. Pumping primer bulb before starting engine draws fresh fuel
from the fuel tank, priming the carburetor for starting. Pump primer bulb until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
AIR CLEANER - Filters out dirt and debris in air. Contains replaceable filter element.
SAFETY VIDEO - (Not included with unit) P/N 99922202540 English version only is available at a cost of $5.00 from
ECHO, INC. or any authorized ECHO dealer. The video overviews safety precautions and proper operating techniques and is supplemental to the Safety Manual. You must read and understand the Safety Manual and Operators
Manual for complete information on safe operation.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
SPECIFICATIONS
MODEL ----------------------------------------------------- SRM-310, SRM-310S, SRM-310U
Length w/o Cutter Head ----------------------------------- 1820 mm (71.7 in.)
Width SRM-310/310S ------------------------------------- 250 mm (9.8 in.)
Width SRM-310U ------------------------------------------ 710 mm (28.0 in.)
Height SRM-310/310S ------------------------------------- 260 mm (10.0 in.)
Height SRM-310U ----------------------------------------- 420 mm (16.5 in.)
Weight (dry) w/o Cutter Head SRM-310 --------------- 6.0 kg (13.2 lb.)
Weight (dry) w/o Cutter Head SRM-310S -------------- 6.1 kg (13.4 lb.)
Weight (dry) w/o Cutter Head SRM-310U ------------- 6.5 kg (14.3 lb.)
Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine
Bore ---------------------------------------------------------- 36.0 mm (1.42 in.)
Stroke -------------------------------------------------------- 30.0 mm (1.18 in.)
Displacement ----------------------------------------------- 30.5 cc (1.86 cu. in.)
Exhaust ------------------------------------------------------ Spark Arrestor Muffler
Carburetor -------------------------------------------------- Walbro diaphragm model WYJ w/purge pump
Ignition System -------------------------------------------- Flywheel magneto, capacitor discharge (CDI)
Spark Plug -------------------------------------------------- NGK BPMR-8Y, (Gap 0.65 mm (0.026 in.)
Fuel ---------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ----------------------------------------------- 50:1 ECHO High Performance, two-stroke air cooled engine oil
Gasoline ----------------------------------------------------- 89 Octane unleaded. DO NOT use fuel containing methyl alcohol,
more than 10% ethyl alcohol or 15% MTBE.
Oil ------------------------------------------------------------ 50:1 ECHO High Performance, two-stroke air cooled engine oil
Fuel Tank Capacity ---------------------------------------- 0.9 lit. (30.4 US fl. oz.)
Starter System ---------------------------------------------- Automatic Recoil Starter
Clutch ------------------------------------------------------- Centrifugal Type
Drive Shaft SRM-310/310U ------------------------------- 1/4 in. Flex Shaft
Drive Shaft SRM-310S ------------------------------------- 7mm Spline Steel Shaft
Rotating Direction ----------------------------------------- Counter Clockwise viewed from top
Cutter Head SRM-310/310S ------------------------------- Semi Auto Nylon line head (2-line)
Cutter Head SRM-310U ----------------------------------- Blade Capable
Handles* SRM-310/310S ---------------------------------- Front-Loop, Right Grip
Handles* SRM-310U -------------------------------------- U-Handle
U-Handle SRM-310/310S ---------------------------------- Optional kit
U-Handle SRM-310U -------------------------------------- Standard
Shoulder Harness ------------------------------------------ Standard HarnessHarness w/hip pad
Idle Speed --------------------------------------------------- 2500 - 3300 RPM
Wide Open Throttle Speed (W.O.T.)
with Nylon Line Head ------------------------------------- 9000 - 11000 RPM
Wide Open Throttle Speed (W.O.T.) with Blade ------- 9000 - 11500 RPM
* Install and use U-Handle when operating any model with blade.
11
12
ASSEMBLY
DRIVE SHAFT/POWER HEAD
(All Models)
A
Tools Required: 4 mm Hex Wrench
Parts Required: Power Head, Drive Shaft Assembly
1.
2.
Stand power head upright on a level surface.
Loosen the two (2) drive shaft clamp bolts at engine drive shaft
clamp, and remove center drive shaft location bolt (A).
3.
Carefully fit driveshaft assembly to engine making sure that
inner drive shaft engages into clutch mount.
Turn drive shaft housing until locating hole lines up with location
hole in clamp and install center drive shaft location bolt (A).
4.
A
B
NOTE
Gear housing must be aligned properly with engine. Aligning
center locating hole in driveshaft housing with center drive shaft
bolt (A) provides correct alignment.
5.
Tighten two (2) drive shaft clamp bolts (B) securely.
B
NYLON LINE OPERATION
Install Plastic Debris Shield
G
Tools Required: Screwdriver, Locking Tool
Parts Required: Plastic Debris Shield, Shield Plate,
three (3) 5 x 18 mm screws.
WARNING
DANGER
D
The plastic shield is for use with the Nylon Line Head only. Install
Metal Shield when using plastic or metal blades, or serious injury
may result.
1.
Align hole in upper plate (D) with notch in gear housing (G), and
insert locking tool to prevent splined shaft from turning. Arrow on
gear housing flange points to notch location.
2.
Remove cotter pin (A), L.H. blade nut (B), lower plate (C), and
upper plate (D) from PTO shaft. Turn blade nut clockwise to
remove.
3.
Remove locking tool. Retain lower plate, blade nut, and cotter
pin for future use with blade conversions.
4.
Align plastic debris shield (F) with the drive shaft, and install on
the bottom of the gear housing flange.
5.
Place shield plate (E) on shield, align holes and install three (3)
screws.
6.
Replace upper plate (D) on PTO shaft.
C
B
A
F
D
E
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
13
Install Nylon Line Head
G
Tools Required: Locking Tool, 17x19 mm Scrench
I
H
Parts Required: Nylon Line Head.
1.
Make sure plastic debris shield (F) is properly aligned, and upper
plate (B) is installed on splined PTO shaft.
2.
Align hole in upper plate (D) with notch in gear housing (G), and
insert locking tool (H) to prevent splined shaft from turning.
3.
Thread line head (I) onto PTO shaft by turning it counter-clockwise until head is tight against upper plate (D).
4.
Remove locking tool.
F
D
BLADE OPERATION
WARNING
DANGER
You must install a U-Handle Kit and all Blade Conversion parts shown in the following instructions before
operating this unit with metal blades, otherwise serious injury may result.
NOTE
Model SRM-310U includes U-Handle. All SRM-310 models
include necessary blade conversion parts. Blades are not provided with trimmer/brushcutters and must be selected for type of
cutting being performed. See page 16, "Choosing The Correct
Blade."
G
Install Metal Shield
D
Tools Required: 8 x 10 mm Open-end Wrench, Screwdriver, Scrench,
Locking Tool
C
Parts Required: Metal Shield, Shield Bracket,
3 - 5 x 15 mm screws w/captivated flat and lockwasher, (metal shield to gear housing).
2 - 5 x 8 mm screws, 2 - 5 mm nuts, 2 - 5 mm lockwashers, (bracket to shield).
2 - 5 mm nuts, 2 - 5 mm lockwashers
(bracket to gear housing)
2.
If installed, remove nylon line head, upper plate and plastic shield,
and set upper plate aside for use with blade installation. Retain
plastic shield, shield plate, and plastic shield hardware for conversion back to nylon line operation.
Align hole in upper plate (D) with notch in gear housing (G), and
insert locking tool to prevent splined shaft from turning. Arrow on
gear housing flange points to notch location.
3.
Remove split pin (A), L.H. blade nut (B), lower plate (C), and upper
plate (D) from PTO shaft. Turn blade nut clockwise to remove.
4.
Remove locking tool.
5.
Loosely attach bracket (J) to shield (K) and attach shield to bottom
of gear housing (G) with hardware provided.
6.
Tighten all shield hardware.
A
G
J
1.
B
K
14
Install Blade
Tools Required: Locking Tool, Scrench.
Parts Required: Upper Plate w/ 20 mm pilot, Lower Plate, 10 mm Nut w/
L.H. threads, 2 x 25 mm Cotter Pin, Blade.
1. Install upper plate (D) on splined PTO shaft, pilot side down. Blade
installation requires Upper Plate (D) with 20 mm pilot.
2.
3.
4.
D
M
H
L
Install Blade (L) on upper plate pilot. Blades must be installed so
that rotation arrow on blade matches rotation of unit: teeth toward
direction of rotation (See debris shield decal). Secure blade with
Lower Plate (C), and 10 mm L.H. nut (B). Turn nut counterclockwise on PTO shaft to tighten.
C
B
N
Align hole in upper plate with notch in gear housing, and insert
Locking Tool (H) to prevent splined shaft from turning. Arrow on
gear housing points to notch. Tighten 10 mm nut securely.
A
Insert Split Pin (A) in hole in PTO shaft, and bend pin legs around
shaft counterclockwise to retain 10 mm nut.
H
D
IMPORTANT
Never reuse a cotter pin - install a new cotter pin each time a blade is
installed or replaced.
5.
6.
Tri-Cut Blade (M) is installed with Glide Cup (N).
Remove locking tool.
20
L
C
B
A
FRONT HANDLE/BARRIER BAR INSTALLATION
AND ADJUSTMENT
Models SRM-310, 310S
Tools Required: Screwdriver.
Parts Required: Loop Handle Assembly: Loop Handle, Loop Handle
Bracket, 5mm x 35mm Screws (4), 5mm Nuts (4)
Optional: Barrier Bar, P/N 99944200455
WARNING
B
A
DANGER
The Barrier Bar must be installed when using grass or weed blades,
otherwise serious personal injury may result.
Handle Only
1.
A
Install loop handle (A) and handle bracket (B) on drive shaft, and
position for comfortable operation. Tighten screws.
Handle and Barrier Bar
1.
Install loop handle (A) and barrier bar (C) on drive shaft, and
position for comfortable operation. Tighten screws.
C
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
U-HANDLE INSTALLATION
Model SRM-310U Only
A
Tools Required: Scrench, 4 mm Hex Wrench
Parts Required: U-Handle, Clamp w/screws, 8 mm x 55 mm hex bolt,
8 mm flat washer
1.
2.
3.
Install upper U-Handle and bracket on lower bracket with one (1)
8 mm x 55 mm bolt (A) and (1) large circular washer. Do not tighten
bolt securely until final adjustments are completed.
Loosen upper (2) U-handle clamp screws (B), and position Uhandle as shown.
Lightly tighten 8mm bolt (A) and clamp screws (B) to hold U-handle
in position until final adjustments are completed.
CONNECT THROTTLE LINKAGE AND IGNITION LEADS
Tools Required: 8 x 10 mm Open-end Wrench
Parts Required: Cable Clips
1.
Unscrew air filter cover knob and remove cover.
2.
Place inner throttle cable in slot of carburetor swivel (B).
3.
Loosen nut (A) and place threaded end of throttle linkage in
bracket slot. Finger tighten nut (A).
4.
Check throttle for freedom of movement and that wide open
throttle / low idle extremes are adjusted properly. If adjustment
cannot be achieved with adjusting nuts, consult with your Echo
Dealer for correct adjustment procedure.
5.
Tighten nut (A). Connect 2 ignition leads from throttle cable tubing
to 2 ignition leads (C) on engine. Gather ignition wires and
position behind air filter case.
6.
A
B
C
Install air filter and cover.
Model 310U Only:
7.
Secure throttle cable to drive shaft using cable clips provided.
BALANCE AND ADJUST UNIT
1.
Loosen harness clamp screw.
2.
Put on harness and attach unit to harness.
3.
Slide harness clamp up (A) or down until unit balances with head
approximately 50-75 mm (2 -3 in.) from the ground.
4.
Tighten harness clamp screw.
5.
Loosen upper U-Handle clamp screws (G), and position U-Handle
for comfortable operation.
6.
Tighten U-Handle clamp screws and 8 mm clamp bolt securely.
B
A
15
16
PRE - OPERATION
OPERATION WITH BLADES
Preparing the Trimmer/Brush Cutter for Blade Use
WARNING
DANGER
Blade use DEMANDS specific Trimmer/Brush Cutter configuration.
Operation without specified shield, harness, and handle can result in serious personal injury.
Grass/Weed Blades require:
SRM-310, 310S: Installation of metal shield (A), installation
of accessory Barrier Bar (B) P/N
99944200455, or U-Handle Kit*, P/N
35130454130, and use of harness (C).
SRM-310U:
Installation of metal shield (A), and use of
standard U-handle (D), and harness with
hip pad (E).
A
B
C
*Echo recommends installation of U-Handle for frequent
grass/weed blade use.
Brush/Clearing Blades require:
D
SRM-310, 310S: Installation of metal shield (A) and
accessory U-Handle Kit, P/N 35130454130
(B), and use of harness with hip pad (D).
SRM-310U:
Installation of metal shield (A), and use of
standard U-Handle (D), and harness with
hip pad (E).
A
E
NOTES
SRM-310 & 310S include Metal Shield, Standard
Harness, and blade mounting hardware as standard
features.
SRM-310U includes Metal Shield, U-Handle, Harness w/
Hip Pad, and blade mounting hardware as standard
features.
Choosing the Correct Blade
WARNING
DANGER
The type of Blade used MUST be matched to the type and size of material cut. An improper or dull blade can cause
serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick out, and injury to yourself
and bystanders.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
Plastic/Nylon Grass/Weed Blades may be used wherever the nylon line
head is used. DO NOT use these blades for heavy weeds or brush!
8 Tooth Grass/Weed Blade - use for grass, garden vegetation, and thick
weeds. DO NOT use this blade for brush or heavy woody growth, 19
mm (3/4 in.) diameter or larger. P/N 69600120331
80 Tooth Brush Blade - use for cutting brush and woody growth up to
64 mm (2-1/2 in.) diameter. P/N 69500120330
22 Tooth Clearing Blade - use for dense thickets and saplings up to 64
mm (2-1/2 in.) diameter. P/N 99944200130
Shoulder/Waist Harness (P/N 30100052131) Use of the Shoulder/Waist
Harness is required for blade operation, and is recommended for ALL
Trimmer/Brush Cutter use.
The Shoulder/Waist Harness suspends the trimmer from the operator's
shoulder, and reduces operator fatigue during nylon line trimming or
cutting with a blade.
Operator safety is also enhanced by restricting trimmer movement and
preventing blade or line contact with the operator's hands and feet
during operation.
NOTE
In case of Emergency, the trimmer/brushcutter can be released from
the the harness by pulling up on the quick-release collar.
17
18
FUEL
Fuel Requirements
Gasoline - Use 89 Octane [(R + M)/2] (mid grade or higher) gasoline
known to be good quality. Gasoline may contain up to 15% MTBE
(methyl tertiary-butyl ether). Gasohol containing methyl (wood) alcohol
is NOT approved.
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD
13738) and J.A.S.O. FC Standards, must be used. Echo brand Premium
50:1 oil meets these standards. Engine problems due to inadequate
lubrication caused by failure to use an ISO-L-EGD and J.A.S.O. FC
certified oil, such as Echo Premium 50:1 Two-stroke Oil, will void the
two-stroke engine warranty. (Emission related parts only are covered
for two years, regardless of two-stroke oil used, per the statement listed
in the Emission Defect Warranty Explanation.)
IMPORTANT
Echo Premium 2-Stroke Oil may be mixed at 50:1 ratio for application
in all Echo engines sold in the past regardless of ratio specified in
those manuals.
Mixing Instructions
1. Fill an approved fuel container with half of the required amount of
gasoline.
2. Add the proper amount of 2-stroke oil to gasoline.
3. Close container and shake to mix oil with gasoline.
4. Add remaining gasoline and remix.
5. Install fuel container cap and wipe any spilled fuel from container
and surrounding area.
Handling Fuel
WARNING
DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling, otherwise serious personal injury may result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT!
• NEVER refuel a unit with the engine running.
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors
over bare ground.
• Securely tighten fuel cap after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.
IMPORTANT
Spilled fuel is a leading cause of
hydrocarbon emissions. Some states
may require the use of automatic fuel
shut-off containers to reduce fuel
spillage. Contact your ECHO dealer for
ordering information.
After Refueling
• Wipe any spilled fuel from the unit.
• Move at least 3 m (10 ft.) from refueling
location before starting.
After Use
• DO NOT store a unit with fuel in its tank.
Leaks can occur. Return unused fuel to an
approved fuel storage container.
Storage
Fuel storage laws vary by locality. Contact
your local government for the laws affecting
your area. As a precaution, store fuel in an
approved, air tight container. Store in a well
ventilated, unoccupied building, away from
sparks and flames. Do not store fuel longer
than 30 days.
IMPORTANT
Stored fuel ages. Do not mix more fuel
than you expect to use in thirty (30)
days, ninety (90) days when a fuel
stabilizer is added.
IMPORTANT
Stored two-stroke fuel may separate.
ALWAYS shake fuel container thoroughly before each use.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
OPERATION
A
STARTING COLD ENGINE
WARNING
DANGER
The cutting attachment should not rotate at idle. If attachment
rotates, readjust carburetor according to "Carburetor Adjustment"
instructions in this manual or see your ECHO Dealer, otherwise
serious personal injury may result.
1.
Stop Switch
Move stop switch button (A) forward, away from the STOP
position.
2.
Choke Lever
Move choke lever (B) to Cold Start (
) Position.
3.
Primer Bulb
Pump primer bulb (C) until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
4.
Recoil Starter
Lay the trimmer on a flat, clear area and pull the recoil starter handle
(D) until engine fires (5 pulls maximum).
5.
Choke Lever
After engine fires, move choke lever to Run (
) position and pull
recoil starter handle/rope (D) until engine starts and runs. Allow
unit to warm up at idle for several minutes.
NOTE
If engine does not start with choke in “Run” position after 5 pulls,
repeat instructions 4 and 5.
B
6.
Throttle Trigger
After engine warm-up, gradually depress throttle trigger to increase
engine RPM to operating speed.
C
D
D
19
20
STARTING WARM ENGINE
WARNING
DANGER
A
The cutting attachment should not rotate at idle. If attachment
rotates, readjust carburetor according to "Carburetor Adjustment"
instructions in this manual or see your ECHO Dealer, otherwise
serious personal injury may result.
1.
Stop Switch
Move stop switch button (A) away from the STOP position.
2.
Recoil Starter
Lay the trimmer on a flat, clear area and pull the recoil starter handle
(D) until the engine fires.
NOTE
If engine does not start after 5 pulls, use Cold Start Procedure.
D
STOPPING ENGINE
1.
Release Throttle.
Allow engine to return to idle before shutting off engine.
2.
Stop Switch.
Move stop switch button backward to STOP position.
A
WARNING
DANGER
If engine does not stop when stop switch is moved to "STOP"
position, move choke lever to closed "Cold Start" position to stall
engine. Have your ECHO dealer repair stop switch before using
trimmer again.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
21
MAINTENANCE
Your ECHO trimmer is designed to provide many hours of trouble free service. Regular scheduled maintenance will help
your trimmer achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your
unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the
ECHO Dealer do it, each maintenance task has been graded. If the task is not listed, see your ECHO Dealer for repairs.
SKILL LEVELS
Level 1 =
Level 2 =
Level 3 =
Easy to do. Most required tools come with unit.
Moderate difficulty. Some specialized tools may be required.
Experience required. Specialized tools are required. ECHO recommends that
the unit be returned to your ECHO dealer for servicing.
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Below each task heading
are listed the various part numbers required for that task. See your ECHO dealer for these parts.
MAINTENANCE INTERVALS
C OMPON EN T/
SYSTEM
MAIN TEN AN C E
PR OC ED U R E
R EQ'D
SK ILL
LE V E L
D AILY OR
B EFOR E
U SE
EVERY
R E FU E L
3
MON TH S
OR 90
H OU R S
6
MON TH S
OR 270
H OU R S
YEAR LY
600
H OU R S
R ecommended Echo D ealer Maintenance Procedures
C yli nder Exhaust Port
Inspect/C lean/D ecarbon
3
I/C
D o-It-Yourself Maintenance Procedures
Ai r Fi lter
Inspect/C lean/Replace
1
I/C
C hoke
Inspect/C lean
2
I/C
Fuel Fi lter
Inspect/Replace
1
Fuel System, leaks
Inspect/Replace
1
I*
C ooli ng System
Inspect/C lean
2
I/C
Muffler Spark Arrestor
Inspect/Replace
2
I/R*
D ri ve Shaft (Flex
C able Models)
Grease
2
I (1)
Gear Housi ng
Grease
2
I (2)
Recoi l Starter Rope
Inspect/C lean
1
Spark Plug
Inspect/C lean
2
Screws/Nuts/Bolts
Inspect/Ti ghten/Replace
1
R*
I
I
I/R*
I
I/C*
I/C
R*
I/R*
MAIN TEN AN C E PR OC ED U R E LETTER C OD ES: I = IN SPEC T, R = R EPLAC E, C = C LEAN
IMPOR TAN T N OTE - Ti me i ntervals shown are maxi mum. Actual use and your experi ence wi ll determi ne the frequency of requi red
mai ntenance.
MAIN TEN AN C E PR OC ED U R E N OTES:
(1) Apply EC HO® LUBETM every 25 hours of use.
(2) Apply EC HO® LUBETM every 50 hours of use.
* All recommendati ons to replace are based on the fi ndi ng of damage or wear duri ng i nspecti on..
22
AIR FILTER
Level 1.
Tools required: 25-50 mm (1 or 2 in.) medium bristle paint brush.
Parts required: 90030 REPOWERTM AIR & FUEL FILTER KIT.
1.
Close choke (Cold Start Position). This prevents dirt from entering
the carburetor throat when the air filter is removed. Brush accumulated dirt from the air cleaner area.
2.
Remove the air cleaner cover. Clean and inspect the element for
damage. If element is fuel soaked or very dirty, replace.
3.
If element can be cleaned and reused, be certain it:
• still fits the cavity in the air cleaner cover.
• is installed with the original side out.
NOTE
Carburetor adjustment may be needed after air filter cleaning/
replacement.
FUEL FILTER
Level 1.
Tools required: Fuel line hook. 200-250 mm (8 - 10 in.) length of
wire with one end bent into a hook. Clean rag,
funnel, and an approved fuel container.
Parts required: 90030 REPOWERTM AIR & FUEL FILTER KIT.
WARNING
DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling.
1.
Use a clean rag to remove loose dirt from around fuel cap and
empty fuel tank.
2.
Use the “fuel line hook” to pull the fuel line and filter from the tank.
3.
Remove the filter from the line and install the new filter.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
SPARK PLUG
Level 2.
Tools Required: Scrench (combination socket wrench & screw driver)
Feeler gauge, preferably a wire gauge. Brush.
Parts Required: Spark Plug, NGK BPMR-8Y
1.
Remove spark plug and check for wear or fouling.
2.
Clean the plug or replace with a new one. DO NOT sand blast to
clean. Remaining sand will damage engine.
3.
Adjust spark plug gap by bending outer electrode.
4.
Install spark plug and tighten to 145-155 kg/cm (125-135 in. lb.).
0.65 mm
(0.026 in.)
COOLING SYSTEMS CLEANING
Level 2.
Tools required: Cross Head Screwdriver, 4 mm Hex Wrench, Pointed
Wood Stick, 25-50 mm (1 -2 in.) medium bristle paint
brush.
Parts Required: No parts are required if care is used during cleaning.
IMPORTANT
To maintain proper engine operating temperatures, cooling air must
pass freely through the cylinder fin area. This flow of air carries
combustion heat away from the engine.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the
cylinder.
• Dust and grass build-up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cooling fins is
considered “Normal Maintenance.” Any failure attributed to lack of
maintenance is not warranted.
1.
Disconnect spark plug lead from spark plug.
2.
Remove (3) screws from muffler cover, and remove cover.
3.
Remove (3) screws from top guard, and remove guard.
4.
Remove (1) screw from engine cover, and remove cover.
23
24
5.
Use the wooden stick or brush to remove dirt from the cylinder fins.
6.
Install engine cover properly, placing fuel vent tube into engine
cover.
7.
Secure engine cover with one (1) screw.
8.
Install top guard correctly, and secure with three (3) screws (install
long screw in center hole).
9.
Insert tab in top of muffler cover into slot in top guard. Position
cover over muffler, and secure with three (3) screws.
10. Connect spark plug lead to spark plug.
EXHAUST SYSTEM
Spark Arrestor Screen
Level 2.
Tools Required: Cross Head Screwdriver, Soft metal brush, Wooden
carbon scraper, 4 mm Hex Wrench
Parts Required: Screen P/N 14586240630
Gasket P/N V104000340
1.
Remove three (3) screws from muffler cover (A) and remove.
2.
Remove screen holder (B), gasket (C) and screen (D) from muffler
body.
3.
Clean carbon deposits from muffler components.
4.
Replace screen if it is cracked, plugged or has holes burned
through.
5.
Reassemble in reverse order of removal. Make sure screen is
positioned properly before tightening screws.
A
D
B
C
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
Cylinder Exhaust Port
Level 3
IMPORTANT
The cylinder exhaust port must be inspected and cleaned of excess
carbon every 3 months or 90 hours of operation in order to maintain
this engine within the emissions durability period. ECHO strongly
recommends that you return your unit to your ECHO dealer for this
important maintenance service.
CARBURETOR ADJUSTMENT
NOTE
New engines must be operated for a minimum of two tanks of fuel
before carburetor adjustments can be made. During the break-in
period your engine performance will increase and exhaust emissions
will stabilize. Idle speed can be adjusted as required.
High Altitude Adjustment
High altitude adjustment is not required for proper operation of this
engine.
Emissions Adjustments
Every unit is run at the factory and the carburetor is set in compliance
with applicable emission regulations. This carburetor does not have
acceleration and high speed adjustment needles.
Idle Speed Adjustment
Idle speed adjustment may be required periodically to comply with
specifications for this unit. See page 11, "Specifications" for correct idle
speed.
Level 2.
Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017).
Parts required: None.
1.
Check idle speed using a tachometer, and reset if necessary. Turn
idle screw (A) clockwise to increase idle speed; counter-clockwise
to decrease idle speed.
WARNING
DANGER
When carburetor adjustment is completed, the cutting attachment
should not turn at idle, otherwise serious personal injury may
result.
A
25
26
LUBRICATION
Level 1.
Tools Required: 8 mm Open-end Wrench, Screwdriver, Clean Rag.
Parts Required: ECHO® LUBETM 8 oz. (P/N 91014) or Lithium Base
Grease.
Gear Housing
1.
Clean all loose debris from gear box.
2.
Remove plug (A) and check level of grease.
3.
Add grease if necessary. DO NOT over fill.
A
Drive Shaft
SRM-310, 310U Only (SRM-310S Drive shaft is sealed)
1.
Loosen two (2) screws (B) and remove center locating screw (C).
Pull gear box and shield from drive shaft.
2.
Pull flexible cable from the drive shaft housing, wipe clean and
recoat with a thin coating [1/2 oz. (15 ml)] of grease.
3.
Slide the flexible cable back in the drive housing. DO NOT get
dirt on the flex shaft.
4.
Install the gear housing and shield assembly.
C
B
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
NYLON LINE REPLACEMENT
Level 1
Tools Required: None
Parts Required: ECHO 0.105 in. Nylon Trimmer Line 15 m (50 feet)
long.
1.
Shut engine off. Lay unit on the ground with head assembly up.
A
2.
Hold head firmly and push in cover tabs (A) to remove cover (B)
and spool (C).
B
C
3.
Use one piece of nylon line (D) and thread through the molded loop
(E) on the spool spindle until ends are even.
E
D
27
28
4.
Hold spool with the tap knob in your hand and opening toward
you. Place index finger between the two lines, and wind line
clockwise tightly and evenly.
5.
When approximately 15-20 cm ( 6- 8 in.) of line remains, place lines
in spool notches (F).
F
F
6.
Thread line ends through housing eyelets (G) and place spool in
housing against spring.
G
G
7.
Align cover tabs with tab holes in housing and push cover on until
tabs snap-lock into place.
8.
Pull on both lines until they come free from notches in spool.
9.
Index line out by pushing tap knob and trim line to cut-off knife
length.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
SHARPENING METAL BLADES
Of the three styles of metal blades that are approved for use on the
ECHO Brush Cutter, only the 8-tooth blade can be sharpened as an
operator maintenance item. The clearing blade and 80 tooth blade
require professional service.
Before sharpening, CLOSELY inspect blade for cracks (look at the
bottom of each tooth and the center mounting hole closely), missing
teeth, and bending. If ANY of these problems are discovered, replace
the blade.
When sharpening a blade, always remove the same amount of material
from each tooth to maintain balance. A blade that is not balanced will
cause unsafe handling due to vibration, and can result in blade failure.
Sharpening 8-tooth Blades
Tool required:
Flat file (preferred).
Electric grinder (if special care is used)
Round (rat tail) file for gullet (radius)
IMPORTANT
If an electric grinder is used, use care not to overheat teeth. DO
NOT allow tips/tooth to glow red or turn blue. DO NOT place blade
in cooling water. This will change the temper of the blade and could
result in blade failure.
1.
File each tooth at a 30 degree angle a specific number of times,
eg. 4 strokes per tooth. Work your way around the blade until
all teeth are sharp.
2.
DO NOT file the 'gullet' (radius) of the tooth with the flat file.
The radius must remain. A sharp corner will lead to a crack and
blade failure.
3.
After sharpening teeth, check each tooth radius for evidence of a
square (sharp) corner. Use the round (rat tail) file to renew the
radius.
29
30
TROUBLESHOOTING
EN GIN E PR OB LEM TR OU B LESH OOTIN G C H AR T
Problem
C h eck
Status
Fuel at carburetor
No fuel at
carburetor
No fuel at cyli nder
Engi ne
cranks starts hard/
doesn't
start
Engi ne
runs,
but di es or
does not
accelerate
properly
C au se
R emedy
Fuel strai ner clogged
Fuel li ne clogged
C arburetor
C lean or replace
C lean or replace
See your Echo dealer
C arburetor
See your Echo dealer
Fuel at cyli nder
Muffler wet wi th fuel Fuel Mi xture too ri ch
Open choke
C lean/replace ai r fi lter
Adjust carburetor
See your Echo dealer
No spark
Stop swi tch off
Electri cal problem
Interlock swi tch
Turn swi tch to ON
See your Echo dealer
See your Echo dealer
Spark at plug
No spark
Spark gap i ncorrect
C overed wi th carbon
Fouled wi th fuel
Plug defecti ve
Adjust to .65mm (0.026 i n.)
C lean or replace
C lean or replace
Replace plug
Ai r fi lter
Ai r fi lter di rty
Normal wear
C lean or replace
Fuel fi lter
Fuel fi lter di rty
C ontami nants/resi dues
i n fuel
Replace
Fuel vent
Fuel vent plugged
C ontami nants/resi dues
i n fuel
C lean or replace
Spark Plug
Plug di rty/worn
Normal wear
C lean and adjust or replace
C arburetor
Improper
adjustment
Vi brati on
Adjust
C ooli ng System
Excessi ve
di rt/debri s
Extended operati on i n
di rty/dusty locati ons
C lean
Spark Arrestor
Screen
Screen cracked,
plugged, or
perforated
Normal wear
Replace
N/A
N/A
Internal engi ne problem
See your Echo dealer
Spark at end
of plug wi re
Engi ne
does not
crank
WARNING
DANGER
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark near an open
spark plug opening, otherwise serious personal injury may result.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
31
STORAGE
WARNING
DANGER
During operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear
of flammable debris during transportation or when storing, otherwise serious property damage or personal injury
may result.
Long Term Storage (over 30 days)
Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage maintenance which includes the following:
1.
Store unit in a dry, dust free place, out of the reach
of children.
WARNING
DANGER
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.
2.
Place the stop switch in the "STOP" position.
3.
Remove accumulation of grease, oil, dirt and debris
from exterior of unit.
4.
Perform all periodic lubrication and services that are
required.
7.
Remove the spark plug and pour 7 cc (1/4 oz.) of
fresh, clean, two-stroke engine oil into the cylinder
through the spark plug hole.
A. Place a clean cloth over the spark plug hole.
5.
Tighten all the screws and nuts.
6.
Drain the fuel tank completely and pull the recoil
starter handle several times to remove fuel from the
carburetor.
B. Pull the recoil starter handle 2-3 times to distribute
the oil inside the engine.
C. Observe the piston location through the spark
plug hole. Pull the recoil handle slowly until the
piston reaches the top of its travel and leave it
there.
8.
Install the spark plug (do not connect ignition cable).
SERVICING INFORMATION
PARTS
Genuine ECHO Parts and ECHO REPOWER™ Parts and Assemblies for
your ECHO products are available only from an Authorized ECHO
Dealer. When you do need to buy parts always have the Model
Number and Serial Number of the unit with you. You can find this
information on the engine housing. For future reference, write them in
the space provided below.
Model No.
S.N.
SERVICE
Service of this product during the warranty period must be performed
by an Authorized ECHO Service Dealer. For the name and address of
the Authorized ECHO Service Dealer nearest you, ask your retailer or
call: 1-800-432-ECHO (3246). Dealer information is also available on our
Web Site. When presenting your unit for Warranty service/repairs,
proof of purchase is required.
DEALER?
CALL
1-800-432-ECHO
OR
www.echo-usa.com
ECHO CONSUMER PRODUCT SUPPORT
If you require assistance or have questions concerning the application,
operation, or maintenance of this product, you may call the ECHO
Consumer Product Support Department at 1-800-673-1558 from 8:30 am
to 4:30 pm (Central Standard Time) Monday through Friday. Before
calling, please know the model and serial number of your unit to help
your Consumer Product Support Representative.
CONSUMER PRODUCT
SUPPORT
1-800-673-1558
8:30 - 4:30 MON - FRI C.S.T.
WARRANTY REGISTRATION
You may register your Echo equipment using the warranty registration
card or register on-line at www.echo-usa.com. Registering provides a
direct link between you and ECHO if we find it necessary to contact
you.
ADDITIONAL OR REPLACEMENT MANUALS
Safety Manuals in English/Spanish or English/French are available
free of charge from your ECHO dealer, or online at www.echo-usa.com.
Operator's and Parts Manuals are available by:
• Downloading free from www.echo-usa.com
• Purchasing from your Echo Dealer.
• Sending a check or money order for $2.00 per Parts Catalog or $1.50 per Operator's Manual made payable to ECHO,
INCORPORATED. State on a sheet of paper the model number and serial number of the ECHO unit you have, part
number of the manual (if known), your name and address and mail to address below.
Safety Videos are available from your Echo dealer. A $5.00 shipping charge is required for each video.
Available Parts Catalog Parts Lists
SRM-310/310S/310U
Serial Number 04001001 - 04999999
Part Number 99922203416
ECHO, INCORPORATED
400 OAKWOOD ROAD
LAKE ZURICH, IL 60047-1564
www.echo-usa.com
">