MSB 24 - Grass trimmer EINHELL - Free user manual and instructions

USER MANUAL MSB 24 EINHELL

devices. Unit is designed for line trimmer use only. Use of any other accessories or attachments will increase the risk of injury.

WARNING: Keep children,

bystanders, and animals 50 feet (15 meters) away. If approached stop unit immediately.

1. Wear close fitting, tough work clothing that

will provide protection, such as long slacks or trousers, safety work shoes, heavy duty work gloves, hard hat, a safety face shield, or safety glasses for eye protection and a good grade of ear plugs or other sound barriers for hearing protection.

2. Store in a safe place. Open fuel cap slowly to

release any pressure which may have formed in fuel tank. To prevent a fire hazard, move at least 10 feet (3 meters) from fueling area before starting.

3. Turn unit off before setting it down.

4. Always hold unit firmly with both hands, the

thumb and fingers encircling the handles.

5. Keep all screws and fasteners tight. Never

operate your equipment when it is improperly adjusted or not completely and securely assembled.

6. Keep handles dry, clean and free of fuel

7. Keep stringhead as close to ground as

practical. Avoid hitting small objects with stringhead. When cutting on a slope, stand below stringhead. NEVER cut or trim on a hill or slope, etc. if there is the slightest chance of slipping, sliding or losing firm footing.

8. Check area you will be trimming for debris

that may be struck or thrown during operation.

9. Keep all parts of your body and clothing

away from stringhead when starting or running

10. Stop engine before examining cutting line.

11. Store equipment away from possible

flammable materials, such as gas-powered water heaters, clothes dryers, or oil-fired furnaces, portable heaters, etc.

12. Always keep the debris shield, stringhead, and

engine free of debris build-up.

13. Operation of equipment should always be

restricted to mature and properly instructed individuals.

14. You must comply with the latest fire safety

directives and the state and the fire preven- tion regulations in force in your area and country. The user bears full responsibility for using the machine. Your machine is fitted with a spark protection grille. A spare grille can be obtained from ISC GmbH.

SAFETY WHEN HANDLING THE BLADE

1. FOLLOW ALL WARNINGS and instructions for

using the machine and for installing the blade.

2. The blade may suddenly jump away out of

control if it comes up against objects which it cannot cut through. This may result in the amputation of arms or legs. Keep onlookers and animals at least 15 m away from where you are working. If the machine strikes a foreign body, stop the engine immediately and bring the blade to a standstill. Check the blade for signs of damage. Always replace the blade if it is bent or torn.

3. THE BLADE WILL THROW UP OBJECTS AT

HIGH SPEED: This may cause blinding or injuries. Always wear eye, face and leg protection. Remove all objects from the working area before using the blade. Keep other people and animals at least 15 m away from the machine in all directions.

4. Check your machine and other equipment

carefully for signs of damage. Do not use the machine unless all the blade mountings have been installed correctly.

5. THE BLADE WILL SLOW DOWN AND STOP IF

YOU RELEASE THE THROTTLE VALVE (gas lever). While it is slowing down, the blade can still cut you or onlookers. Before you carry out any work on the blade, switch off the engine and make sure that the blade has stopped.

6. DANGER ZONE WITH A DIAMETER OF 20

METERS. Onlookers may suffer blindness or injuries. Keep onlookers and animals at least 15 m away from where you are working.

1. DO NOT USE ANY OTHER FUEL than that

recommended in your manual. Always follow instructions in the Fuel and Lubrication section of this manual. Never use gasoline unless it is properly mixed with 2-cycle engine lubricant. Permanent damage to engine will result, voiding manufacturer’s warranty.

2. DO NOT SMOKE while refueling or operating

MUFFLER and properly installed muffler shield.

4. DO NOT TOUCH or let your hands or body come

in contact with the muffler. Hold unit with thumbs and fingers encircling the handles.

5. DO NOT OPERATE UNIT IN AWKWARD

POSITIONS, off balance, outstretched arms, or one-handed. Always use two hands when operating unit with thumbs and fingers encircling the handles.

6. DO NOT RAISE STRINGHEAD above ground

level while unit is operating. Injury to operator could result.

7. DO NOT USE UNIT FOR ANY PURPOSES

OTHER than trimming lawn or garden areas.

8. DO NOT OPERATE UNIT FOR PROLONGED

PERIODS. Rest periodically.

COMPONENTS OF THIS PRODUCT. Doing so could cause personal injury and/or damage the unit voiding the manufacturer’s warranty.

12. DO NOT operate your unit near or around

flammable liquids or gases whether in or out of doors. An explosion and/or fire may result.

13. DO NOT USE ANY OTHER CUTTING TOOLS.

For your own safety only use the accessories and additional equipment specified in the operating manual or recommended or specified by the manufacturer. The use of tools or accessories other than those recommended in the operating manual or catalog may place you in danger of personal injury.

NOTE: DO NOT use blades on these models. SAFETY EQUIPMENT The numbers that precede the descriptions correspond to the numbers on the previous page to enable you to identify the safety equipment more easily 3 / 5 BLADE GUARD: This must be fitted at all times to prevent the user being injured by objects thrown up by the machine. The blade fitted in the hood guard 3 also cuts the cutting line to the perfect length automatically. 16 EXHAUST GUARD: This prevents hands, body and/or inflammable material coming into contact with the hot exhaust. ASSEMBLY INSTRUCTIONS FITTING THE “Bike” HANDLE (Fig. 1c - 1d)

1. To fasten the handle to the machine you will need

the following parts from the kit: “Bike” handle (A), mounting (B), clip (C) and screws (D).

2. Position the handle mounting (B) on the shaft in

the direction indicated by the arrow (see warning sticker) place the clip (C) over the shaft and tighten the two screws (D).

3. Place the “Bike” handle (A) on the mounting, fit

the other clip (C) above the guide shaft and secure it with the other two screws (D).

4. Secure the cable going to the handle with the

cable tie (E). Fitting the blade guard (Fig. 2a - 2b)

1. Take the gearbox collar (A) off the thread on the

gearbox casing shaft.

2. Place the guard on to the gearbox casing and line

up the fastening holes. Insert the screws (B) as shown in the figure and tighten them.

3. Insert the gearbox collar (A) again. Ensure that

the collar spacer (C) is in the correct position, otherwise the collar will rub on the gearbox casing. Anleitung MSB 24 04.10.2004 9:15 Uhr Seite 20FITTING THE LINE HEAD (Fig. 3a - 3c)

1. Insert the gearbox collar (A) and ensure that the

collar spacer (B) is in the correct position.

2. Insert the retaining pin (C) and screw the line

head to the shaft. Tighten the line head by hand only. Fitting the cutting line guard (Fig. 4A) Turn the machine over and fit the cutting line guard (A) as shown. CAUTION: The cutting line guard must be fitted to ensure that the cutting line is cut to the correct length so as to protect the user. FITTING THE BLADE (Fig. 5a - 5d) CAUTION: Never use the machine if the blade is bent, broken or has teeth missing. Replace a damaged blade immediately. CAUTION: Only use the machine with a blade if the metal blade guard has been fitted correctly. Never use the machine with a defective blade guard. CAUTION: Always wear thick gloves for handling and fitting a blade.

1. To fit the blade you will need the following parts:

Retaining pin (B), retaining nut (C), blade (D), screwdriver (not supplied) (E), flange (F), socket (G).

2. Undo the three screws (H). Remove the cutting

line guard (A). Use the retaining pin to prevent the collar turning whilst you remove the line head (turn it CLOCKWISE).

3. Leave the retaining pin (B) in position.

WARNING: Ensure that the hole through the

center of the blade fits the size of the collar shaft.

4. Fit the blade (D) so that its teeth point

5. Fit the flange (F) so that its FLAT SIDE is against

the blade. Important: Ensure that the blade is centered on the collar shaft.

6. Tighten the nut (C) by turning it ANTI-

CLOCKWISE with the socket (G). Then remove the retaining pin. Fuel and lubrication

• Fuel Use regular grade unleaded gasoline mixed with 2- cycle engine oil for best results. Use mixing ratios in Section FUEL MIXING TABLE.

Warning: Never use straight gasoline in your

unit. This will cause permanent engine damage and void the manufacturer’s warranty for that product. Never use a fuel mixture that has been stored for over 90 days.

Warning: Do not use any 2-cycle oil product with

a recommended mixing ratio of 100:1. If insufficient lubrication is the cause of engine damage, it voids the manufacturer’s engine warranty.

• MIXING FUEL Mix fuel 2 cycle oil in an approved container. Use mixing table for correct ratio of fuel to oil. Shake container to ensure through mix.

Warning: Lack of lubrication voids engine

warranty. Gasoline and oil must be mixed at 40:1.

• Fuel Mixing Table Gasoline Lubricant 5 Liters 125 ml (cc) Mixing Procedure 40 Parts Gasoline to 1 part Lubricant 1 ml = 1 cc RECOMMENDED FUELS Some conventional gasolines are being blended with oxygenates such as alcohol or an ether compound to meet clean air standards. Your engine is designed to operate satisfactorily on any gasoline intended for automotive use including oxygenated gasolines. OPERATING INSTRUCTIONS

WARNING: Always use the shoulder strap to support

the machine. Attach the strap to the machine as soon as you start the engine and the engine is idling. Switch off the engine before taking off the shoulder strap.

1. Place the shoulder strap over your left shoulder.

2. Hook the attachment hook (A) into the eyelet (B)

(Fig. 6A and Fig. 6B).

3. Adjust the length of the shoulder strap so that the

gearbox head is parallel to the ground. Then swing the machine a few times without starting the engine to find the perfect length for the shoulder strap. Note: Detach the shoulder strap from the machine before you start the engine.

2. Fix the gas lever. Press the “Lock off” switch (A)

downwards. Then press the gas lever (B) and slide the locking switch (C) downwards at the same time. The gas lever will lock on full (Fig. 7b).

3. The machine has a choke that can be set to one

of three positions: CHOKE “ “ START“ ” and RUN “ “. Set the choke lever to CHOKE “ “ (Fig. 7i).

4. To start the engine, spray fuel into the carbu-

retor. Press the tickler (A) ten times (Fig. 7e).

5. Pull the starter cord a little way out until you feel

resistance (approx. 10 cm) (Fig. 7f). To generate a strong ignition spark the cord must be pulled quickly and smoothly. Pull the starter cord four times quickly and powerfully.

6. Set the choke lever to START“ “ (Fig. 7h).

7. Pull the starter cord a further four times with the

gas lever set to full.

8. If the engine starts, remain on START“ “ for 10

10. If the engine does not start repeat steps 1 to 8.

PLEASE NOTE: If the engine does not start after you have made several attempts please refer to the section entitled “Troubleshooting on the engine”. NOTE: Always pull starter rope straight out. Pulling starter at an angle will cause rope to rub against the eyelet. This friction will cause the rope to fray and wear more quickly. Always hold starter handle when rope retracts. Never allow rope to snap back from extended position. This could cause rope to snag or fray and also damage the starter assembly.

• STARTING THE ENGINE WHEN IT IS WARM

1. Place the machine on a hard, flat surface.

4. Hold the gas lever tightly and press the trigger

5. Pull the starter cord quickly until the engine

starts. Do not pull the cord more than six times. Hold the gas lever FULLY pressed until the engine is running smoothly.

6. Set the choke to RUN“ “ and pull the starter cord

a further five times if the engine does not start. If the engine still does not start it is probably flooded with gasoline. Wait for five minutes and then try again with the choke set to RUN “ “ and with the gas lever fully pressed.

• TO STOP ENGINE Release throttle trigger. Let engine return to idle. Push and hold ignition stop switch until engine stops (Fig. 7b). Trimming Instructions

• ADDITIONAL SAFETY PRECAUTIONS Before operating your unit, review ALL SAFETY PRECAUTIONS in this manual. WARNING / CAUTION

• IF UNFAMILIAR WITH TRIMMING techniques, practice the procedures with ENGINE in “OFF” position.

• ALWAYS CLEAR WORK area of debris such as cans, bottles, rocks, etc. Striking objects can cause serious injury to operator or bystanders and also damage equipment. If an object is accidentally hit, immediately TURN ENGINE OFF and examine equipment. Never operate unit with damaged or defective equipment.

• ALWAYS TRIM OR CUT AT HIGH ENGINE SPEEDS. Do not run engine slowly at start or during trimming operations.

• DO NOT use equipment for purposes other than trimming or mowing weeds.

• NEVER raise stringhead above knee height during operation.

• DO NOT operate unit with other people or animals in the immediate vicinity. Allow a minimum of 50 feet (15 meters) between operator and other people and animals when trimming or mowing. Allow a distance of 100 feet (30 meters) between operator and other people and animals when SCALPING with stringhead cutter.

• IF OPERATING UNIT ON A SLOPE, stand below the cutting attachment. DO NOT OPERATE on a slope or hilly incline if there is the slightest chance of slipping or losing your footing.

coated steel wire of any kind with your stringhead. Serious operator injury can result. To release fresh line, run engine at full throttle and

Anleitung MSB 24 04.10.2004 9:15 Uhr Seite 22“bump” stringhead against lawn. Line will automatically release. The knife in debris shield will trim excess line (Fig. 9A). CAUTION: Periodically remove weed wrap to prevent overheating the drive shaft. Weed wrap occurs when strands of weed become entangled around the shaft beneath the debris shield (Fig. 9B). This condition prevents the shaft from being properly cooled. Remove weed wrap with screwdriver or similar device.

• TRIMMING PROCEDURES When properly equipped with a debris shield and stringhead, your unit will trim unsightly weeds and tall grass in those hard-to-reach areas - along fences, walls, foundations and around trees. It can also be used for scalping to remove vegetation down to the ground for easier preparation of a garden or to clean out a particular area. NOTE: Even with care, trimming around foundations, brick or stone walls, curves, etc., will result in above normal string wear. TRIMMING / MOWING Swing trimmer with a sickle-like motion from side to side. Do not tilt the stringhead during the procedure. Test area to be trimmed for proper cutting height. Keep stringhead at same level for even depth of cut (Fig. 10A). CLOSER TRIMMING Position trimmer straight ahead with a slight tilt so bottom of stringhead is above ground level and string contact occurs at proper cutting point. Always cut away from operator. Do not pull trimmer in toward operator.

FENCE / FOUNDATION TRIMMING

Approach trimming around chain link fences, picket fences, rock walls and foundations slowly to cut close without whipping string against the barrier. If the string comes in contact with rock, brick walls, or foundations, it will break or fray. If string snags fencing, it will snap off.

TRIMMING AROUND TREES

Trim around tree trunks with a slow approach so string does not contact bark. Walk around the tree trimming from left to right. Approach grass or weeds with the tip of the string and tilt stringhead slightly forward.

WARNING: Use extreme caution when

SCALPING. Keep a distance of 100 feet (30 meters) between operator, other people and animals during these operations. SCALPING Scalping refers to removal of all vegetation down to the ground. To do this, tilt the stringhead to about a 30 degree angle to the left. By adjusting the handle you will have better control during this operation. Do not attempt this procedure if there is any chance flying debris could injure operator, other people or cause damage to property. (Fig. 10B) Cutting with blades

WARNING: Before you use this machine with a

blade, check that it has been fitted correctly. Follow all the instructions set out in the section entitled “Safety instructions for undergrowth/grass cutting blades” in this operating manual.

Whenever you are cutting with a blade you must wear eye protection and protective clothing. Always use the shoulder strap when working with the blade.

WORKING WITH WEED-CUTTING BLADES

(supplied, Art. No. 34.051.63) MOWING WEEDS Mowing means moving the blade in a horizontal curve from one side to the other. This is very effective for grass-like weeds and small undergrowth. It is not suitable for cutting large, tough weeds or woody vegetation (Fig. 11). CAUTION: Do not use weed-cutting blades for cutting scrub or young trees. SAWING The BMST 24 is not designed for sawing. JAMMING Very thick vegetation, such as young trees or thick scrub may jam the blade and bring it to a standstill. Prevent the blade from jamming by anticipating the direction in which the scrub leans and cut it from the opposite side. If the blade jams while cutting, switch off the engine immediately. Hold the machine level so that the blade does not jump or break while you push the young tree away from the cut to free the blade.

When using metal cutting tools (grass blades, thicket knives) there is a risk that the machine will recoil if the tool strikes a solid object (tree truck, branch, tree stump, stone or the like). In this case the machine will jump backwards in the opposite direction to which the tool is rotating. This may lead to a loss of control of the tool and risk of injury to the user and onlookers.

Anleitung MSB 24 04.10.2004 9:15 Uhr Seite 23Do not use metal cutting tools near fences, metal posts, boundary stones or foundations. The safety blade is designed to reduce recoil if the blade strikes a hard, solid object. To cut thick stalks, place it in position (A), see Fig. 12, to prevent recoil. Fig 13A A. KNOB B. SPOOL C. SPRING D. SPINDLE E. HOUSING F. SLOTS G. EYELETS

1. Turn knob (A) COUNTERCLOCKWISE and

remove (Fig. 13A). User knob spanner supplied.

2. Remove spool (B) and spring (C) from spindle (D).

3. Remove any remaining cutter line (H).

4. Double a 14' (4.3m) length of .080" (2mm) cutter

line. Place the looped center in one of the slots of the spool divider (Fig. 13B).

5. Wind cutter line clockwise as shown in illustration

(Fig. 13C), keeping tension, with each half separated by the spool divider. Wind to within 6" (15cm) of the ends.

6. Lock each end of line (H) into a slot (F) on

opposite sides of the spool (Fig. 13D).

7. Install the spring (C) over the spindle (D). Insert

each end of the line through an eyelet (G) in the housing (E) (Fig. 13E).

8. Lower the spool into the housing (E) while

feeding the line through the eyelets (G). Ensure the spring seats itself into the spool (Fig. 13E).

9. Once the spool is in place, apply pressure on the

spool compressing the spring. Pull each end of the line (H) sharply to unlock the line from the slots (Fig. 13F).

10. Continue to apply pressure to the spool until the

knob can be threaded CLOCKWISE onto the spindle. Tighten the knob securely by hand only (Fig. 13G).

11. Trim the excess line to approximately 5" (13cm).

This will minimize load on engine during starting and warm-up (Fig. 7A).

• AIR FILTER Caution: Remove fuel from unit and store in approved container before starting this procedure. Open fuel cap slowly to release any pressure which may have formed in fuel tank. To Clean Air Filter: (fig 14a - 14c)

1. Remove 3 screws (A) holding air filter cover in

place, pull out choke lever knob (B) remove cover (C) and lift filter (D) from air box.

2. Wash filter in soap and water. DO NOT USE

NOTE: Replace filter if frayed, torn, damaged or unable to be cleaned.

• FUEL CAP / FUEL FILTER Caution: Remove fuel from unit and store in approved container before starting this procedure. Open fuel cap slowly to release any pressure which may have formed in fuel tank. NOTE: Keep vent (A) on fuel cap clean of debris (Fig.15A).

1. Lift fuel line and filter (B) out of tank. A steel wire

(C) with a hook or a paper clip works well (Fig. 15B).

2. Pull off with a twisting motion (Fig. 15C).

3. Replace fuel filter (D).

NOTE: Never operate the trimmer without the fuel filter. Internal engine damage could result!

• CARBURETOR ADJUSTMENT The carburetor was pre-set at the factory for optimum performance. If further adjustments are necessary, please take your unit to the nearest Authorized Service Center.

2. Torque to 105 to 130 inch pounds (12 to 15 N•m).

module (A) (Fig. 18) lift the module out of its holder with a pair of needle pliers.

2. To position the new radio interference

suppression module push it into the holder with the needle pliers slightly open.

PROBLEM Unit won’t start or starts but will not run. Unit starts, but engine has low power. Engine hesitates. No power under load. Runs erratically. Smokes excessively.

1. Remove cutter knife (E) from debris shield (F)

2. Place knife in a bench vise. Sharpen knife using a

flat file, being careful to maintain the angle of cutting edge. File in one direction only.

Warning: Failure to follow these steps may

cause varnish to form in the carburetor and difficult starting or permanent damage following storage.

1. Perform all the general maintenance

recommended in the Maintenance Section of your User Manual.

2. Clean exterior of engine, drive shaft assembly,

debris shield and stringhead.

3. Drain fuel from the fuel tank.

4. After fuel is drained, start engine.

5. Run engine at idle until unit stops. This will purge

the carburetor of fuel.

6. Allow engine to cool (approx. 5 minutes).

8. Pour 1 teaspoon of clean 2-cycle oil into the

combustion chamber. Pull starter rope slowly several times to coat internal components. Replace spark plug.

9. Store unit in a cool, dry place away from any

source of ignition such as an oil burner, water heater, etc.

10. Do not transport and store the trimmer with the

blade fitted unless the supplied transport guard is also fitted.

2. Pull starter rope briskly to clear excess oil from

3. Clean and gap spark plug or install a new spark

plug with proper gap.

4. Prepare unit for operation.

5. Fill fuel tank with proper fuel / oil mixture. See Fuel

and Lubrication Section. Trouble shooting the engine PROBABLE CAUSE Incorrect starting procedures. Incorrect carburetor mixture adjustment setting. Fouled spark plug Fuel filter plugged. Incorrect lever position on choke. Dirty air filter. Incorrect carburetor mixture adjustment setting. Incorrect carburetor mixture adjustment setting. Incorrectly gapped spark plug. Incorrect carburetor mixture adjustment setting. Incorrect fuel mixture. CORRECTIVE ACTION Follow instructions in the User Manual. Have carburetor adjusted by an Authorized Service Center. Clean / gap or replace plug. Replace fuel filter. Move to RUN position. Remove, clean and reinstall filter. Have carburetor adjusted by an Authorized Service Center. Have carburetor adjusted by an Authorized Service Center. Clean / gap or replace plug. Have carburetor adjusted by an Authorized Service Center. Use properly mixed fuel (40:1 mixture). Anleitung MSB 24 04.10.2004 9:15 Uhr Seite 25F

The reprinting or reproduction by any other means, in whole or in part, of documentation and papers accompanying products is permitted only with the express consent of ISC GmbH.