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regularly given the opportunity to attend training

courses and are supplied with the necessary

technical information.
Only use high-quality replacement parts in order

to avoid the risk of accidents and damage to the

power tool. If you have any questions in this

respect, consult a servicing dealer.
STIHL recommends the use of original STIHL

replacement parts. They are specifically

designed to match your model and meet your

performance requirements.
To reduce the risk of injury, always shut off the

engine before carrying out any maintenance or

repairs or cleaning the machine. – Exception:

Carburetor and idle speed adjustments.
Do not turn the engine over on the starter with

the spark plug boot or spark plug removed since

there is otherwise a risk of fire from uncontained

sparking.
To reduce the risk of fire, do not service or store

your machine near open flames.
Check the fuel filler cap for leaks at regular inter‐

vals.
Use only a spark plug of the type approved by

STIHL and make sure it is in good condition –

see "Specifications".
Inspect the ignition lead (insulation in good con‐

dition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to hearing,

do not operate your machine if the muffler is

damaged or missing.
Do not touch a hot muffler since burn injury will

result.
Vibration behavior is influenced by the condition

of the AV elements – check the AV elements at

regular intervals.

3

Using the Unit

3.1

Cutting Season

Observe country-specific or municipal rules and

regulations for cutting hedges.
Do not use your power tool during other people's

rest periods.

3.2

Cutting Sequence

Use lopping shears or a chain saw to cut out

thick branches first.

Cut both sides of the hedge first, then the top.

3.3

Disposal

Do not throw cuttings into the garbage can – they

can be composted!

3.4

Working Technique

3.4.1

Vertical cut

0008BA003 KN

Swing the cutting blade from the bottom upwards

in an arc – lower the nose of the blade, move

along the hedge and then swing the blade up

again in an arc.
Any working position above head height is tiring.

To minimize the risk of accidents, work in such

positions for short periods only.

3 Using the Unit

English

0458-447-8321-D

7

Summary of Contents for HS 56

Page 1: ...HS 46 56 2 21 Instruction Manual ...

Page 2: ...arance of our products periodically Therefore some changes modifications and improvements may not be covered in this man ual 2 Safety Precautions and Working Techniques Special safety precautions must be observed when working with this power tool because it has very sharp high speed cutting blades It is important you read and under stand the User Manual before com missioning and keep it in a safe ...

Page 3: ...HL tools and accessories They are specifically designed to match the product and meet your performance requirements Never attempt to modify your power tool in any way since this may increase the risk of personal injury STIHL excludes all liability for personal injury and damage to property caused while using unauthorized attachments Do not use a high pressure washer to clean the power tool The sol...

Page 4: ...m the l and n positions to the operating position F while the Throttle Trigger Lockout and Throttle Trigger are simultaneously squeezed Check that the spark plug boot is secure a loose boot may cause sparking that could ignite combustible fumes and cause a fire Cutting blades must be properly tightened and in safe operating condition clean sharp not bent or warped correctly mounted and thor oughly...

Page 5: ...roots risk of tripping or stumbling Make sure you always have good balance and secure footing 2 7 1 When working at heights Always use a lift bucket Never use the machine while standing on a ladder or in a tree Never work on an insecure support Never use the machine with just one hand Be particularly alert and cautious when wearing hearing protection because your ability to hear warnings shouts al...

Page 6: ...sap and the build up of dirt particles The dust which is generated during operation may be harmful to health Wear a dust mask in case of dust formation Before you leave the machine Shut the engine off Check the cutting blades at regular short inter vals during operation or immediately if there is a noticeable change in cutting behavior Shut off the engine Wait for cutting blades to come to a stand...

Page 7: ... good condition see Specifications Inspect the ignition lead insulation in good con dition secure connection Check the condition of the muffler To reduce the risk of fire and damage to hearing do not operate your machine if the muffler is damaged or missing Do not touch a hot muffler since burn injury will result Vibration behavior is influenced by the condition of the AV elements check the AV ele...

Page 8: ...specification can lead to severe engine damage The engine seals fuel lines and fuel tank may be damaged if low quality gasoline or engine oil is used 4 2 1 Gasoline Use only high quality gasoline with an octane rat ing of at least 90 ROC leaded or unleaded Gasoline with an alcohol component exceeding 10 can cause impaired engine performance in engines with manually adjustable carburetors and thus ...

Page 9: ...res STIHL MotoMix however can be stored for up to 5 years without any problems Shake the canister containing the fuel mixture thoroughly before refueling WARNING Pressure may have built up in the canister open it carefully The fuel tank and the canister in which fuel mixture is stored should be cleaned thoroughly from time to time Residual fuel and the liquid used for cleaning must be disposed of ...

Page 10: ...uel special accessory Fill the fuel tank 5 4 Closing 001BA234 KN Grip must be vertical Fit the cap marks on tank cap and fuel tank must line up Press the cap down as far as stop 001BA233 KN While holding the cap depressed turn it clock wise until it engages in position 001BA231 KN The marks on the tank cap and fuel tank are then in alignment 001BA235 KN Fold the grip down 001BA241 KN Tank cap is l...

Page 11: ... Lever 0 0008BA007 KN STOP STOP or Master Control lever must be pushed in direction of STOP or to switch off the ignition When released the Master Control lever springs back to the normal run position F and the ignition is switched on again Normal run position F engine runs or can fire Starting throttle n this position is used to start a warm engine The Master Control lever moves to the normal run...

Page 12: ...throttle trigger lockout 1 throttle trigger 2 and Master Control lever 6 3 2 Warm engine warm start 3 0008BA010 KN 1 2 Depress the throttle trigger lockout 1 and the throttle trigger 2 at the same time hold both levers in that position Move the Master Control lever 3 to n Release the throttle trigger lockout 1 throttle trigger 2 and Master Control lever Also use this setting if the engine has been...

Page 13: ...ug boot is properly con nected Repeat the starting procedure 6 7 4 Fuel tank run until completely dry After refueling press the manual fuel pump bulb at least five times even if the bulb is fil led with fuel Set the Master Control lever to suit the engine temperature Start the engine 7 Operating Instructions 7 1 During break in period A factory new machine should not be run at high revs full throt...

Page 14: ...ng blades stop moving then turn it about another full turn in the same direction WARNING If the cutting blades continue to run while the engine is idling have your power tool checked and repaired by your servicing dealer 10 Spark Arresting Screen in Muffler WARNUNG To reduce the risk of fire caused by hot particles escaping from the machine never operate the machine without a spark arresting scree...

Page 15: ...Check electrode gap A and readjust if neces sary see Specifications Rectify the problems which have caused foul ing of the spark plug Possible causes are Too much oil in fuel mix Dirty air filter Unfavorable running conditions 1 000BA045 KN WARNING Arcing may occur if the adapter nut 1 is loose or missing Working in an easily combustible or explosive atmosphere may cause a fire or an explosion Thi...

Page 16: ... 3 1 1 1 Fit the retaining plate 2 so that it is flush with the gearbox housing Fit the gearbox cover 3 insert the screws 1 and tighten them down firmly 12 1 2 HS 56 Use STIHL gear lubricant for hedge trimmers special accessory to lubricate the blade drive gear 0000 GXX 3952 A0 1 2 Unscrew the filler plug 1 If no grease can be seen on the inside of the filler plug screw the tube 2 of STIHL gear lu...

Page 17: ...rds the cutting edge The file only sharpens on the forward stroke lift it off the blade on the backstroke Use a whetstone to remove burr from cutting edge Remove as little material as possible After sharpening clean away filing or grinding dust and then spray the cutting blades with STIHL resin solvent NOTICE Do not operate your machine with dull or dam aged cutting blades This may cause overload ...

Page 18: ...let Visual inspection X Clean X Spark arresting screen in muffler Check if installed X Check or replace1 X All accessible screws and nuts not adjusting screws Retighten X Antivibration elements Visual inspection X Have replaced by serv icing dealer1 X X Cutting blades Clean X Sharpen1 X Visual inspection X Have replaced by serv icing dealer1 X Gearbox lubrication commercial use only check every 25...

Page 19: ...50 rpm Cut off speed 9 300 rpm 17 2 Ignition System Electronic magneto ignition Spark plug resistor type NGK CMR6H BOSCH USR4AC Electrode gap 0 5 mm 17 3 Fuel system All position diaphragm carburetor with integral fuel pump Fuel tank capacity 280 cc 0 28 l 17 4 Cutting blades 17 4 1 HS 46 Bidirectional ground on one side Sharpening angle to horizontal 35 Tooth spacing 30 mm Stroke rate 3 600 min C...

Page 20: ...engine in accordance with a standardized test procedure under laboratory conditions and does not represent either an explicit or implied guarantee of the performance of a specific engine The applicable exhaust emission requirements are fulfilled by the intended usage and mainte nance described in this User Manual The oper ating license shall be void if the engine is modi fied in any way 18 Mainten...

Page 21: ...00 14 EC and has been developed and manu factured in compliance with the following stand ards in the versions valid on the date of produc tion EN ISO 10517 EN 55012 EN 61000 6 1 The measured and the guaranteed sound power level have been determined in accordance with Directive 2000 14 EC Annex V and standard ISO 11094 Measured sound power level 105 dB A Guaranteed sound power level 107 dB A Techni...

Page 22: ...English 20 EC Declaration of Conformity 22 0458 447 8321 D ...

Page 23: ...20 EC Declaration of Conformity English 0458 447 8321 D 23 ...

Page 24: ...www stihl com 04584478321D 04584478321D 0458 447 8321 D 0458 447 8321 D ...

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