ECHO SRM-200 Weed and Grass Trimmer Instruction Manual
- June 17, 2024
- ECHO
Table of Contents
SRM-200 Weed and Grass Trimmer
Specifications
- Model: SRM-200
- Manufacturer: ECHO, INCORPORATED
- Address: 400 Oakwood Road Lake Zurich, Illinois 60047
- Website: www.echo-usa.com
- Customer Service: 898 571-0893
Safety Precautions
Before using the Weed and Grass Trimmer, please read and understand the
following safety precautions:
-
Always wear protective goggles and gloves when operating the trimmer.
-
Ensure that there are no people or animals nearby before starting the trimmer.
-
Do not use the trimmer in wet or rainy conditions.
-
Keep the trimmer away from flammable materials.
-
Do not touch the hot muffler or engine parts during or
immediately after use. -
Always turn off the trimmer and disconnect the spark plug
before performing any maintenance or cleaning.
Assembly
To assemble the Weed and Grass Trimmer, follow these steps:
- Attach the driveshaft assembly to the gear housing.
- Secure the nylon cord cutter to the gear housing.
- Attach the handle grip to the handle.
- Connect the shoulder strap to the hanger.
- Pass the throttle cable through the designated hole.
- Insert the bolt into the driveshaft assembly up to the specified line.
- Tighten the nuts (A) and (B) to secure the driveshaft assembly.
- Attach the loop handle to the screw band and spacer.
- Secure the fixing plates (inner and outer) using the nut and cotter pin.
OPERATORS MANUAL
CAUTION!
Read Rules for Safe Operation and Instructions Carefully
ECHO, INCORPORATED
400 OAKWOOD ROAD
LAKE ZURICH, ILLINOIS 60047 WWW.ECHO-USA.COM
HANDLING OF NYLON CORD CUTTER HEAD
ASSEMBLING
Install the nylon cord cutter head as follows.
- Insert the locking bar as shown.
- Tighten head counter-clockwise.
- Loosen nut 1-1/2 turn approximately clockwise.
- Pull out the nylon cord to a specified length. (Approx. 5 in. : 13 cm)
- Turn the reel drum cover clockwise to rewind the nylon cord when necessary.
- After adjusting the length, tighten nut securely. *
When tip of the cord is worn out, cracked or shortened, cut the tip and adjust exposed cord length properly as above.
- Remove screw and stopper. (standard thread)
- Remove nut (lefthand thread)
- Take out cord reel and wind nylon cord as shown. Insert cord end into cord fixing hole and start the windings.
- Assemble the parts backward of above steps 1 to 3.
IMPORTANT
RULES FOR SAFE OPERATION
-
Obey Rules and/or Regulations in your area.
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Read this Operator’s Manual well to acquaint yourself with how to handle the unit safely and effectively before use.
- Before starting operation, study the working procedures well.
- If there is anything doubtful, contact and inquire with an Echo distributor or dealer.
-
Never operate the unit when you are fatigued.
Fatigue causes carelessness.- Keep sufficient rest periods and breaks when operating the unit.
- Be more cautious before rest periods and before the end of your shift.
-
Handle gasoline with care. It is highly inflammable.
- Always store gasoline in an approved container.
- Handle at a clean and cleared place and away from fire.
- Do not smoke while handling fuel.
- Always stop the engine to refuel the tank.
- Do not refuel a hot engine. Wait until the engine has cooled down.
- Avoid spilling fuel or oil. Spilled fuel should always be wiped up.
- Move at least three meters ( 10 feet) away from the fueling point before starting engine.
- Do not move the fuel tank cap when engine is still warm or running.
-
When transporting, checking or adjusting the unit be sure the engine is stopped.
-
Do not operate in unventilated areas. Exhaust gas is highly poisonous.
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Do not operate without the safety guard in correct position.
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Use only the cutter blade designated by the manufacturer for this model. Make sure that the cutter is correctly fixed according to the instructions. Blade has to be well leveled and sharpened, teeth bottom must be well rounded. Levelling should not be adjusted while engine is in motion. When crack is noticed on the cutter blade, never use it, but replace with a new one.
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Before starting up the engine, make sure that the cutter blade is not contacting anything.
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Always wear safety footwear, safety goggles and ear protectors where possible.
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Do not allow either people or animals into the work area.
- When two or more operators are working together, a safe distance should be kept between them.
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Do not smoke when operating.
-
Be sure of your footing when operating.
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Always hold the unit firmly with both hands with the thumb and fingers encircling the handles.
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To avoid hitting small stones or other debris, do not cut too close to the ground.
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Before setting down the trimmer, switch off the engine.
TECHNICAL DATA
NOMENCLATURE Of PARTS
DRIVESHAFT
- Stand the engine upright on a level floor.
- Loosen bolt at drive shaft end of the engine.
- Fit drive shaft assembly ensuring that the drive shaft is correctly engaged.
- The line on drive shaft housing must be in contact with the engine.
- Rotate drive shaft housing until gear housing is in line with the engine.
- Tighten bolt to fasten drive shaft assy.
HANGER FOR SHOULDER STRAP
- Install hanger for shoulder strap as shown.
- Remove screw and set hanger with a spacer.
- Tighten screw securely.
THROTTLE CABLE
As the engine is delivered with throttle cable (engine side) separated,
assemble the cable to carburetor as follows.
- Remove nut (A) from throttle cable.
- Insert throttle cable through the hole of crankcase as shown.
- Replace nut (A) finger tight, and attach the inner cable to swivel on throttle lever ensuring that the nipple fits into socket provided on one side of slot.
- Tighten nut (A) to secure in this position.
- Check that throttle operates freely and returns to idle position.
- Do not loosen nut (B) unnecessarily, as it is located properly at the factory.
LOOP HANDLE
- Assemble loop handle and loop handle bracket to drive shaft ass’y loosely.
- Adjust location of handle to a convenient position. Tighten the bolts securely. (Refer to page 4)
SAFETY GUARD
- Your trimmer is now equipped with an extendable guard plate. When using the nylon cord cutter, the guard must be fully extended. When using the metal/plastic blade, the guard plate in its extended position should not be used. (See figure)
- Fit the safety guard and bracket on drive shaft ass’y and tighten the screws or nuts using the spring washers. (Nine points)
For safe operation, never use the trimmer without safety guard.
CUTTER BLAED (Optional supply at extra cost)
- After fixing the safety guard, assemble the inner blade fixing plate, blade and outer blade fixing plate to the PTO shaft, then fit the nut finger tight.
- Lock the bearing housing and inner blade fixing plate with locking rod and tighten the nut with box wrench. (Counterclockwise) (NOTE) The nut has left hand threads.
- As for the NYLON CORD CUTTER HEAD follow the instructions, page 1.
SHOULDER STRAP
- Fit shoulder strap to hanger, and readjust length of strap to maintain the cutter head parallel to the ground.
OPERATION
- Check for loose nuts, bolts and screws before using the unit every use.
FUFLI
- Fuel used for this model is a mixture of regular grade gasoline and ECHO brand motor oil or an aircooled two stroke engine oil of a reputable brand name.
- Mixture ratio is Gasoline 20 parts: Oil 1 part.
- Fuel mixture at a rate other than 20:1 may cause malfunction of the engine. Watch out for mixture ratio.
- Pour 1/2 of the gasoline into a safe container, add oi and mix thoroughly. – Now add the remainder of gasoline and mix again. –
- Do not use motor oil other than that recommended above.
- Do not mix directly in engine fuel tank.
- After refueling, secure the fuel tank cap and wipe all spilled fuel with a dry cloth.
STARTING COLD ENGINE
- Turn switch to START/RUN position as shown. Turn choke lever to START (Close) position.
- Pull recoil starter until the engine fires. Now, turn choke lever to RUN (Open) position, and if necessary, restart the engine again and allow to warm up for a few minutes before using.
- After idling, gradually open throttle and cutter blade will start to operate as the engine attains clutch engagement speed of 3000 ~ 3400 RPM approx.
(NOTE) Recoil starter: Use short pulls – only 1/2-2/3 of starter rope for starting. Always hold the unit firmly with both hands.
STARTING WARM ENGINE
- When engine is warm, start it by pulling recoil starter rope with switch positioned at START/RUN. (Keep choke lever in RUN (Open) position.)
- If engine does not start in a few tries, follow same pro- cedures as to start cold engine.
STOPPING ENGINE
• Release throttle trigger and allow to run at an idle speed. • Turn ignition
switch to “STOP” position.
OPERATING THE TRIMMER
- Adjust handle to a convenient position for trimming as instructed on page 5.
- Allow the engine to warm up at a fast idle for a few minutes.
- Increase engine speed as necessary.
- When trimming weed or grass, swing the cutter head from right to left as you move forward.
- Avoid striking any obstruction such as rocks, stones or tree stumps which can damage the cutter head. Do not cut into the ground.
- To avoid damage to the engine, do not run the engine unloaded at full throttle.
- In the event that the cutter strikes an obstruction or is otherwise prevented from rotating in normal operation, the clutch will slip to prevent possible engine damage. In this case, stop the engine, free the cutter and then start the operation again.
- In an emergency, pull out pin of shoulder strap to detach the unit.
(CAUTION)
Do not allow either people or animals into the work area. Always wear safety
goggles when cutting. Dress properly – Avoid loose clothing.
When grass or weeds have clogged the cutter head affecting normal operation,
first, stop the engine and then remove it.
THROTTLE REGULATOR
- Use throttle regulator when using metal/plastic blade.
- When using metal/plastic blade (optional) ensure throttle regulator is in its proper position. (See illustration below)
- High speed needle (H) of carburetor should be set as rich as possible. (Refer to carburetor setting page 8.)
(CAUTION)
Always open high speed needle more than 1-1/8 turn.
- When using nylon cord cutter, throttle regulator should not be used.
- Loosen thumb bolt on reglator and move regulator from left side to right side. (See illustration)
MAINTENANCE AND CARE
AIR FILTER
- Clean every day.
- Remove air cleaner cover w/filter.
- Brush off dust lightly or wash it in a non-inflammable solvent.
- When you wash it in a solvent, dry it completely before putting back in place.
FUEL STRAINER
- Check periodically.
- Do not allow dust to enter into fuel tank.
- Clogged strainer will cause difficulty in starting the engine or abnormalities in engine performance.
- Pick up fuel strainer through fuel inlet port with a piece of steel wire or the like.
- When strainer is dirty, wash it in a non-inflammable solvent.
MUFFLER AND EXHAUST PORT
Clean as necessary
-
* Carbon deposit in cylinder exhaust port and muffler will reduce engine output.- Muffler can be removed by taking off muffler cover.
- Be careful not to scratch cylinder or piston when cleaning cylinder exhaust port.
CYLINDER FINS
- Check periodically.
- Clogged fins will result in poor engine cooling.
- Remove dirt and dust from between fins to let cooling air pass easily.
SPARK PLUG
- Check periodically.
- Standard spark gap is 0.6-0.7 mm (0.024-0.028 in.).
- Replace if either electrode is worn or if the insulator is fouled by oil or other deposits.
- TORQUE = 145 – 155 kg-cm (125 – 135 in. Ib)
CAUTION Do not over-torque.
GEAR HOUSING
-
Remove the bolt every 50 hours and check.
Replenish as necessary, but do not overfill. –- Shell Alpena or good-quality lithium multi-grease is recommendable.
CARBURETOR
- The carburetor is set at the factory. So normally, further adjustment is unnecessary. If readjustment is required, refer to the following instructions.
CARBURETOR ADJUSTMENT
The diaphragm carburetor has three external adjustments. and to some extent,
the adjustment of each will affect the other two. It will be necessary,
therefore, to readjust each until satisfactory performance is achieved.
- Idle speed adjusting screw. This adjustment controls the throttle opening in the idle position.
- Low (LO) speed needle screw. The low-speed needle controls the volume of fuel/oil mixture at low engine speed. It also controls the supplementary fuel required to obtain smooth progression from idling to high speed.
- High (HI) speed needle screw. The high-speed needle controls the volume of fuel/oil mixture at full throttle opening. Turn both ‘HI’ and ‘LO’ needles clockwise until fully closed.
Do not use excessive force
Unscrew the ‘LO’ needle one complete turn. Turn the idle speed adjustment
screw clockwise until the throttle is slightly open. Start the engine and run
for a few minutes on high idle until the engine is warm. Allow the engine to
idle, and if necessary, readjust the idle speed screw to keep the engine from
stalling.
‘LO’ SPEED ADJUSTMENT
Turn the ‘LO’ needle clockwise slowly and note the position at which the
engine speed is reduced. Now turn the ‘LO’ needle counterclockwise and again
note the position when speed is reduced. Set the needle in the midway
position. Finally, adjust the engine idling speed by turning the idle speed
screw in a clockwise direction until the clutch just begins to engage. This
indicates a speed of 3000-3400 RPM. Now reduce engine speed by turning the
screw counter- clockwise one half turn.
CUTTER BLADE
- Use only the blade designated by the manufacturer for this model.
- When crack is noticed on the blade, never use it, but replace with a new one.
- Round the teeth bottom for 1 – 2 mm radius in order to avoid the crack using a round file.
- -Rounded part is not to be sharpened. – Sharpen each cutter equally so as to retain the balance of the blade.
- In sharpening the edge by use of a grinder, do not cool the cutter abruptly by immersing it in water.
NYLON CORD CUTTER
- Refer to instructions, page 1.
‘HI’ SPEED ADJUSTMENT
Engine must be at normal operating temperature. Turn the ‘HI’ needle
counterclockwise 1-1/4 turns. Run the engine at full throttle and turn the
‘HI’ needle slowly clockwise until the engine runs smoothly without “four
stroking” on no load. Turn the needle open again (counterclockwise) 1/8″ turn
to obtain optimum fuel for full power under load conditions.
CAUTION DO NOT RUN THE ENGINE ON FULL THROTTLE LONGER THAN 5-6 SECONDS TO AVOID DAMAGE TO ENGINE.
TROUBLESHOOTING
Poor performance of the engine and/or trimming mechanism can normally be prevented by carefully following the above instructions. Poor performances can easily be corrected even by a beginner. When the engine does not function properly check the following three (3) points first.
- Is engine compression adequate?
- Is fuel system in good condition and is enough fuel being supplied?
- Is electrical system in good condition and is spark plug operating normally? When there is serious trouble with the unit, do not try to repair it yourself but have your distributor or dealer do it for you. For detailed
TROUBLE SHOOTING refer to tables 1 and 2. Locate the problem on the following charts and repair as nece ssary.
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Table 1
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Table 2
STORAGE AFTER USE
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Inspect and adjust every part of the unit.
Completely clean every part, and repair, if necessary.- Apply thin coating of oil on metal parts to prevent rust.
Remove the cutter head, apply sufficient oil coating and wrap up in plastic.
- Apply thin coating of oil on metal parts to prevent rust.
-
Drain fuel tank, pull starter handle slowly a few times to drain fuel from carburetor.
Pour a small amount of clean motor oil into spark plug hole, pull starter handle and then crank the engine until
TOP DEAD CENTER.
- Store in a dry area, free from dust.
KIORITZ CORPORATION
5-1 SHIMORENJAKU, 7-CHOME, MITAKA, TOKYO 181
CABLE ADDRESS: KIORITZ MITAKA
TELEX ADDRESS: KIORITZ A J 26592