SHT 660 K - Hedge trimmers STIGA - Free user manual and instructions

USER MANUAL SHT 660 K STIGA

3. Cutting and adjusting hedges ................ 11

  4.  Routine maintenance  ............................. 11   5.  Extraordinary maintenance  ................... 12   6.  Diagnostics  ............................................ 13

HOW TO READ THE MANUAL

Certain  paragraphs  in the manual contain  par- ticularly signicant information and are marked  with various levels of highlighting with the follow- ing meaning: NOTE or IMPORTANT These give details or further infor- mation on what has been previously indicated and aim to prevent damage to the machine or cause other damage. WARNING! Non-observance will result in the risk of injury to oneself or others. DANGER! Non-observance will result in the risk of serious injury or death to oneself or others.

GETTING TO KNOW THE MACHINE

NOTE - The images corresponding to the ref- erences are found on page 2 of this manual.

2. Cutting device (blade)

6. Rear handgrip release control

12. Blade control (Throttle trigger)

SYMBOLS (where applicable) 41.  Fuel mixture tank

1) THIS MACHINE MAY CAUSE SERIOUS DA-

10) Stop the engine before:

E) TRANSPORTATION AND HANDLING

1.1 CHECKING THE MACHINE

This machine  is tted with  a two-stroke  engine  which  requires  a mixture  of petrol  and  lubricat- ing oil. IMPORTANT Using petrol alone will damage the engine and will cause for invalidation of the war- ranty. IMPORTANT Only use quality fuels and oils to maintain high performance and guarantee the du- ration of the mechanical parts over time.

1.2.1 Petrol characteristics

Only use unleaded petrol with a fuel grade of at  least 90 ON. IMPORTANT Unleaded petrol tends to create deposits in the container if preserved for more than 2 months. Always use fresh petrol!

1.2.2 Oil characteristics

Only use top quality synthetic oil specically for  two-stroke engines. Your  Retailer  can  provide  you  with  oils  which  have been specically developed for this type of  engine, and which are capable of guaranteeing a  high level of protection. The use of these oils  makes  it possible to pre- pare a 2% mixture, consisting in 1 part oil to 50  parts petrol.

1.2.3 Preparation and preservation

of the fuel mixture DANGER! Petrol and the fuel mixture are highly inflammable! – Keep the petrol and fuel mixture in homolo- gated fuel containers, in safe place, away from any flames or heat sources. – Never leave the containers within the reach of children.9 – Never smoke whilst preparing the mixture and avoid inhaling the petrol fumes. To prepare the fuel mixture: –   Place about half the amount of petrol in a ho- mologated tank. – Add all the oil. – Add the rest of the petrol. –   Close the top and shake well. IMPORTANT The fuel mixture tends to age. Do  not prepare excessive amounts of the fuel mixture  to avoid the formation of deposits. IMPORTANT Keep  the  petrol  and  fuel  mixture  containers separate and easily identifiable to avoid the mistake of using one in place of the other. IMPORTANT Periodically clean the petrol and fuel  mixture  containers  to  remove  any  eventual  deposits.

DANGER! Never smoke whilst refuelling and avoid inhaling the petrol fumes WARNING! Carefully open the tank top as pressure could have formed inside. Before refuelling: –   Shake the fuel mixture container well. –   Place  the  machine  on  a  at  stable  surface,  with the fuel tank cap facing upwards. –   Clean  the  fuel  tank  cap  and  the  surrounding  area  to  avoid  any  dirt  from  entering  the  tank  during relling. –   Carefully  open  the  fuel tank cap  to allow the  pressure inside to decrease gradually. Use a  funnel to rell and avoid lling the tank to the  brim (Fig. 1). WARNING! Always close the fuel tank cap firmly. WARNING! Immediately clean all traces of fuel which may have dripped on the ma- chine or the ground and do not start the en- gine until the petrol fumes have dissipated.

REGULATING THE HANDGRIP (Fig. 2) The rear handgrip (1) can be adjusted to 3 dier- ent positions in relation to the cutting device to make trimming your hedges easier. WARNING! The handgrip must only be adjusted when the engine is switched off. – Pull the release lever (2) up. – Rotate the rear handgrip (1) to the desired po- sition. –   Before  using  the  machine  check  that  the  re- lease lever (2) is as low as possible, and the  rear handgrip is rmly attached. WARNING! When working, the rear handgrip must always be in a vertical posi- tion, whatever the position of the cutting de- vice (3).

WARNING! The machine must be started in an area at least 3 metres from where you refilled the fuel tank. Before starting the machine: –   Place the machine rmly on the ground. –   Remove the blade protection devices. –   Make sure the blade is not touching the ground  or any other object. –   Make  sure  that  the  handgrip  is  locked  in  the  centre position.

NOTE A “cold” start of the engine means start- ing it after at least 5 minutes from when it was switched off or after refuelling. To start the machine (Fig. 3): 1.   Press switch  (1) to position «I». 2.   Gently press the bulb (2) on the “primer” 7-10  times  until  the  fuel  ows  from  the  exhaust  pipe.

3. Turn the starter control lever (3) to the «B»

position. 4.   Hold  the  machine  rmly  on  the  ground  with  one hand on the handgrip, in order not to lose control of the machine during startup. WARNING! If the machine is not held firmly, the force of the engine could cause the user to lose his balance or direct the blade towards an obstacle or the same user. 5.   Pull the starter grip slowly for 10 - -15 cm un- til you feel some resistance, then tug it a few  times until you hear the engine turn over.10 IMPORTANT This machine is fitted with an “Easy Start” system which makes the starting procedure different and easier compared to traditional meth- ods. This system reduces the effort required to start the machine. The cord only requires pulling until you hear the engine start to tick over; no ef- fort is required to pull the cord as it does not cre- ate any resistance. WARNING! To avoid breaking the starter cord, do not pull the whole length of it or let it slide along the edge of the cable guide hole. Release the starter grip gradually, to avoid letting it fly back uncontrollably. 6.   Gradually  release  the  grip  (4) on  the  starter  cord to avoid it from returning too fast and out  of control. 7.   Briey  operate  the  throttle  lever  (5)  to  bring  the choke control lever (3) automatically to the  «A» position. 8.   Allow  the  engine  to  run  at  minimum  speed  for at least one minute before accelerating to  maximum speed. IMPORTANT If the starter cord grip (4) is pulled repeatedly with the starter control lever (3) in the «B» position it can flood the engine and make starting difficult. If you have ooded the engine, remove the spark  plug and gently pull the grip (5) of the starter cord  to eliminate any excess fuel; then dry the spark  plug electrodes and replace it on the engine.

OF THE CUTTING DEVICE (Fig. 4) The speed of the cutting device is regulated by the throttle trigger (1) positioned on the rear  handgrip (2). It is only possible to use this lever if the safety  lever (3) is pressed simultaneously. The movement is transmitted from the engine to  the blade by a centrifugal mass clutch that pre- vents the blade from moving when the engine is  running at minimum speed. WARNING! The cutting device must not move when the engine is running idle. If the cutting device moves when the engine is run- ning idle, contact your Retailer to correctly regulate the engine. The  correct  running  speed  will  be  achieved  by  pressing the throttle trigger (1) as far as possible. IMPORTANT Avoid using the machine at full power for the first 6- 8 working hours.

2.3 STOPPING THE MACHINE (Fig. 5)

To stop the machine: –   Release the throttle trigger  (1) and allow the  engine to run at minimum speed for a few sec- onds. –   Press the switch (2) to position «O». WARNING! When the engine is ticking over, it will take a few seconds for the blades to stop. WARNING! In the event of an emergen- cy stop, move the switch immediately to the «O» position.

3. CUTTING AND ADJUSTING HEDGES

To respect people and the environment: –   Try not to cause any disturbance. –   Scrupulously  comply  with  local  regulations  and provisions for the disposal of waste mate- rials after sawing. –   Scrupulously  comply  with  local  regulations  and provisions for the disposal of oils, petrol, damaged parts or any elements which have a  strong impact on the environment. –   Disposal of the packaging should be done in  accordance with the local regulations in force. WARNING! Prolonged exposure to vi- brations can cause injuries and neurovas- cular disorders (also called “Raynaud’s syn- drome” or “white hand”), especially to peo- ple suffering from circulation disorders. The symptoms can regard the hands, wrists and fingers and are shown through loss of sensi- tivity, torpor, itching, pain and discolouring of or structural changes to the skin. These effects can be worsened by low ambient tem- peratures and/or by gripping the handgrips excessively tightly. If the symptoms occur, the length of time the machine is used must be reduced and a doctor consulted. DANGER! This machine’s starter unit ge-11 nerates an average sized electromagnetic field, but it is not however possible to ex- clude the possibility of interference on any active or passive medical devices that opera- tors may be wearing; this could be risky for their health conditions. All those using medi- cal devices should always consult their GP, or the device manufacturer, before using this machine. WARNING! Always wear suitable cloth- ing when using the machine. Your Dealer can provide you with all the information on the most suitable accident-prevention devices to guarantee your safety. WARNING! If something breaks or an accident occurs during mowing, turn off the engine immediately and move the machine away to prevent further damage; if an ac- cident occurs with injuries or third parties are injured, carry out the first aid measures most suitable for the situation immediately and contact the medical authorities for any necessary health care. Carefully remove any debris that might cause damage or harm per- sons or animals should it not be seen.

Correct  maintenance  is  essential  to  maintain  the original eciency and safety of the machine  over time. WARNING! During maintenance opera- tions: – remove the spark plug cap. – Wait until the engine is sufficiently cold. – Use protective gloves when handling the blades. – Keep the blade protection devices on, except when intervening directly on the blade. – Never dispose of oils, fuel or other pollut- ing materials in unauthorised places.

4.2 CLEANINGTHE ENGINE

(Fig. 10) Every  20  working  hours,  top  up  the  level  with  special  molybdenum  bisulphur  lubrication,  in- jecting it into the lubricator (1).

4.6 LONG PERIODS OF DISUSE

IMPORTANT If you are not going to use the ma- chine for a period of more than 2-3 months, we recommend you do a few things before putting it away. This will make it easier when you want to use the machine again and will also prevent per- manent damage to the engine. Before putting the machine away: –   Empty the fuel tank. –   Start the engine and run it idle until it comes to  a halt, so that it uses up all the fuel that is left in the carburettor. –   Wait for the engine to cool down before stor- ing the machine. When you wish to start using the machine again,  prepare it  as  indicated  in  chapter  “1.  Preparing  to work.

WARNING! If the cutting device moves when the engine is running idle, contact your Dealer to correctly regulate the engine.

5.3 CARBURETTOR ADJUSTMENTS

WARNING! Periodically check that the blades are not bent or deformed and that the screws are adequately tightened.

5.4.1 Adjusting the blades

The  blades  are  subject  to  progressive  wear,  which  is noticed by a decrease in the trimming  performance due to excessive play of the unit. WARNING! Blade adjustment is an op- eration that can damage the blades and ma- chine or cause injuries or accidents if not done properly. For these reasons, it must al- ways be done by your Dealer.

5.4.2 Sharpening the blades

It  is  necessary  to  sharpen  the  blades  when  the  trimming  performance  decreases  and  the  branches tend to stick together. WARNING! Always replace and never re- pair a blade which has blunt cutting edges. IMPORTANT We recommend you take your ma- chine to your Dealer for sharpening as he has the required tools and suitable experience.13

What to do when ... Source of problem Corrective action

1. The machine will not start or will not keep running

Incorrect starting procedure Follow the instructions (see chapter 2) Dirty spark plug or incor- rect distance between the  electrodes Check the spark plug (see chapter 4) Air filter clogged Clean and/or replace the filter (see chapter 4) Carburation problems Contact your Dealer

2. The machine starts but is lacking in power

Air filter clogged Clean and/or replace the filter (see chapter 4) Carburation problems Contact your Dealer

3. The machine runs irregularly

and lacks in power when revved Dirty spark plug or incorrect distance between the electrodes Check the spark plug (see chapter 4) Carburation problems Contact your Dealer

4. The machine makes too much smoke

Incorrect composition of  the fuel mixture Prepare the fuel mixture  according to the instruc- tions (see chap. 1) Carburation problems Contact your Dealer

5. The blades heat up and give off smoke

Overheating due to poor regulation Contact your Dealer

6. The blades move with the engine idling

KUIDAS KASUTUSJUHENDIT LUGEDA

D) VEDLIKEHOLD OG OPPBEVARING

5. EKSTRAORDINÆRT VEDLIKEHOLD

5.4 VEDLIKEHOLD AV KNIVBLADENE

INNEHÅLLSFÖRTECKNING

EC Declaration of Conformity (Machine Directive 2006/42/EC, Annex II, part A) 1. The Company 2. Declares under its own responsibility that the machine: Powered hand-held hedge trimmer, hedge cutting/trimming a) Type / Base Model b) Commercial model c) Year of manufacture d) Serial number e) Motor: petrol 3. Conforms to directive specifications: f) Certifying body g) EC examination of Type 4. Reference to harmonised Standards i) Sound power level measured j) Sound power level guaranteed m) Net power installed q) Person authorised to create the Technical Folder: r) Place and Date