Stihl MS 440 Instruction Manual
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Stihl MS 440 Instruction Manual

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STIHL MS 440
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  • Page 1 STIHL MS 440 Instruction Manual...

  • Page 3: Table Of Contents

    Dear Customer, Guide to Using this Manual Minimize Wear and Avoid Damage Safety Precautions Main Parts Thank you for choosing a quality engineered STIHL product. Reactive Forces Specifications It has been built using modern Working Techniques Ordering Spare Parts production techniques and...

  • Page 4: Guide To Using This Manual

    STIHL's philosophy is to continually This Instruction Manual refers to a improve all of its products. For this Intake air baffle: summer STIHL chain saw, also called a machine reason we may modify the design, operation in this Instruction Manual.

  • Page 5: Safety Precautions

    Keep bystanders, especially children, Wear a safety hard hat where there is a injury. STIHL excludes all liability for and animals away from the work area. danger of head injuries from falling personal injury and damage to property objects.
  • Page 6 (bayonet-type) in engage the chain brake and attach the have been approved by STIHL for this position, turn as far as chain scabbard. This avoids the risk of machine. If you have any questions in stop and fold the cliplock the saw chain starting unintentionally.
  • Page 7 – the chain must not an emergency, switch off the engine touch any objects or the floor – danger of immediately by moving the Master injury due to the rotating saw chain. Control lever / stop switch to STOP, 0 or †. MS 440...
  • Page 8 Check condition and secure fitting – regularly and correct when possible. Store the machine in a safe, dry room. Check sharpness Have the machine repaired by a STIHL – servicing dealer if the saw chain still Never touch the saw chain when the Vibrations continues to move during idling.
  • Page 9 Instruction Manual. All other work should periodically. be carried out by a servicing dealer. Inspect chain catcher – replace if STIHL recommends that maintenance damaged. and repair work be carried out only by Switch off the engine authorised STIHL dealers. STIHL...

  • Page 10: Reactive Forces

    Always cut at full throttle – caught or encounters a foreign object in Be aware of the location of the guide – the wood, the chain saw may suddenly bar nose Do not cut with the guide bar nose – MS 440...

  • Page 11: Working Techniques

    – In these cases, do not use a chain saw – use a hoist, winch or dragline instead. Pull out trunks that are lying about and have been cut free. Whenever possible, deal with them in open areas. MS 440...
  • Page 12 If there is a risk of fire, do not and off balance. Always engage the use your chainsaw near combustible spiked bumper securely in the tree or limb. MS 440...
  • Page 13 – other than helpers. chain will otherwise be damaged. of deadwood (dry, decayed or rotted wood) Make sure no-one is endangered by the falling tree – the noise of your engine may drown any warning calls. MS 440...
  • Page 14 On steep slopes, plan escape – routes parallel to the slope. When walking away along the – escape path, watch out for falling limbs and watch the top of the tree. MS 440...
  • Page 15 Make cuts at both sides of Leave a broader hinge on rotten the trunk at same height as bottom of – trees. MS 440...
  • Page 16 English The tree is felled with the felling cut (E). Begin cut by applying the lower Contact your STIHL dealer for advice on portion of the guide bar nose – do selecting the right felling wedge (length, Cut horizontally. –...
  • Page 17 Do not cut into the stabilizing strap. – stabilizing strap (3). Do not cut into the stabilizing strap. – Continue the felling cut on the other side of the trunk. Make sure the second cut is at the same height as the first cut. MS 440...
  • Page 18 Holding the saw with outstretched arms, cut through the stabilizing Enlarge the felling cut in direction of strap horizontally at the same level holding strap (2). as the felling cut. Cut horizontally. – Do not cut into the holding strap. – MS 440...
  • Page 19 Enlarge felling cut as far as hinge (2). Do not cut into the hinge. – Enlarge felling cut as far as holding strap (3). Do not cut into the holding strap. Shout a second warning immediately – before the tree falls. MS 440...

  • Page 20: Cutting Attachment

    If non-matching components are used, the cutting attachment may be damaged Depending on the model, the scabbard beyond repair after a short period of extension either comes standard with operation. the saw or is available as a special accessory. MS 440...

  • Page 21: Mounting The Bar And Chain

    Turn the screw (1) counterclockwise until the tensioner slide (2) butts against the left end of WARNING the housing slot. Wear work gloves to protect your hands from the sharp cutters. Fit the chain – start at the bar nose. MS 440...

  • Page 22: Tensioning The Chain

    STIHL MotoMix Retensioning during cutting work: Shut off the engine. Shut off the engine. Wear work gloves to protect your STIHL recommends the use of STIHL hands. Loosen the nuts. MotoMix. This ready-to-use fuel mix The chain must fit snugly against contains no benzol or lead, has a high Hold the bar nose up.
  • Page 23 Use only high-quality two-stroke engine location protected from light and the sun. oil – preferably STIHL HP, HP Super or Fuel mix ages – only mix sufficient fuel HP Ultra, which are specially formulated for a few weeks work.

  • Page 24: Fueling

    Take care not to spill fuel while fueling and do not overfill the tank. Tank cap without symbols STIHL recommends you use the STIHL filler nozzle for fuel (special accessory). Opening Fill up with fuel.
  • Page 25 Tank cap with markings and symbols cap. Checking security of cap Opening Left: Bottom of cap twisted Right: Bottom of cap correctly positioned The lug on the grip must fully – Raise the grip until it is upright. engage the recess (arrow). MS 440...
  • Page 26 Take care not to spill fuel while fueling and do not overfill the tank. The marks on the tank cap and fuel tank STIHL recommends you use the STIHL are then in alignment. filler nozzle for fuel (special accessory). Fill up with fuel.

  • Page 27: Chain Lubricant

    Biological chain oil must be resistant to Right: Bottom of cap in correct posi- aging (e.g. STIHL BioPlus), since it will tion – inner mark is under the otherwise quickly turn to resin. This grip. It is not in line with the results in hard deposits that are difficult outer mark.

  • Page 28: Checking Chain Lubrication

    Check chain lubrication, clean the oilways, contact your dealer for assistance if necessary STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing Locking the chain dealer.

  • Page 29: Winter Operation

    Remove the carburetor box cover have servicing and repair work carried Pull the hand guard back toward the in the carburetor box cover, move out exclusively by an authorized STIHL front handle, the slide from summer servicing dealer. Maintain the following...

  • Page 30: Electric Handle Heating

    The heating system is the cold engine maintenance-free. Adjust Master Control lever The throttle trigger lockout and throttle trigger must be pressed simultaneously to adjust the Master Control lever from the operating position F to cold start l. MS 440...

  • Page 31: Starting / Stopping The Engine

    It is closed automatically when the minute engine starts for the first time. For this reason, press the button again before each additional starting procedure For all versions Observe safety precautions MS 440...
  • Page 32 With the left hand on handlebar, With a new engine, pull the starter rope press the chain saw firmly against several times to prime the fuel line. the ground – thumb wrapped around the handlebar Place your right foot into the rear handle MS 440...
  • Page 33 – otherwise, damage to the engine housing and chain brake may occur when the chain brake is locked. Let the engine warm up briefly with the throttle slightly open if necessary, configure for winter operation, see "Winter Operation" MS 440...

  • Page 34: Operating Instructions

    Slacken off the chain if you have retensioned it at operating Check chain tension frequently temperature during work. A new saw chain must be retensioned more frequently than one that has been in use already for an extended period. MS 440...

  • Page 35: Oil Quantity Control

    (special accessory) – in the area with the greatest wear NOTICE Chain type Chain pitch Minimum The chain must always be wetted with a groove depth film of lubricant. Picco 1/4“ P 4.0 mm Rapid 1/4“ 4.0 mm MS 440...

  • Page 36: Air Filter System

    - such as powder start. snow or drift snow. Rather unsuitable in very dusty conditions. When dry, STIHL filters attain a long service life. Always use STIHL filters dry MS 440...

  • Page 37: Cleaning The Air Filter

    If there is a noticeable loss of engine power: Wash the filter in STIHL special- purpose cleaner (special accessory) or a clean, non- flammable cleaning liquid (e.g., warm soapy water) – rinse the filter from inside to out under a water jet –...

  • Page 38: Adjusting The Carburetor

    1/4 turn. It is usually necessary to change the setting of the idle speed screw (LA) after Adjusting Idle Speed every correction to the low speed screw (L). Carry out the standard setting. Start and warm up the engine. MS 440...

  • Page 39: Spark Plug

    Remove air filter (1) (versions with only suppressed spark plugs of the Turn the high speed screw (H) box filter) type approved by STIHL – see slightly clockwise (leaner). On "Specifications". carburetors with H = 3/4, turn no Unplug spark plug boot (2) further than stop.

  • Page 40: Storing The Machine

    Press the spark plug boot firmly Using two saw chains in alternation onto the spark plug helps preserve the chain sprocket. STIHL recommends use of original STIHL chain sprockets in order to ensure optimal functioning of the chain brake. MS 440...

  • Page 41: Maintaining And Sharpening The Saw Chain

    – can lead to increased kickback tendency of the chain saw – risk of injury! Clean crankshaft stub and needle cage and lubricate with STIHL lubricant (special accessory) Slide needle cage onto the crankshaft stub MS 440...
  • Page 42 The chain pitch marking (a) is embossed Sharpening angle Use a file holder in the area of the depth gauge of each STIHL saw chains are sharpened with a Always use a file holder (special cutter. 30° sharpening angle. Ripping chains, accessory, see table "Sharpening tools")
  • Page 43 The depth gauge determines the depth guide bar) in accordance with the to which the cutter penetrates the wood specified angle – according to the and thus the chip thickness. MS 440...
  • Page 44 0814 252 3356 5605 007 1029 0.404 (10.26) 5.5 (7/32) 5605 772 5506 5605 750 4330 1106 893 4000 0814 252 3356 5605 007 1030 consisting of file holder with round file, taper square file and file gauge MS 440...

  • Page 45: Maintenance And Care

    Replace Fuel tank Clean Chain oil tank Clean Chain lubrication Check Inspect, also check sharpness Chain Check chain tension Sharpen Check (wear, damage) Clean and turn over Guide bar Deburr Replace Chain sprocket Check Clean Air filter Replace MS 440...
  • Page 46 Decoke after first 139 hours of operation, then Exhaust port every 150 hours of operation Safety labels Replace STIHL recommends a STIHL servicing dealer Firmly tighten down the cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation. MS 440...

  • Page 47: Minimize Wear And Avoid Damage

    English servicing dealer. STIHL dealers are Minimize Wear and Avoid regularly given the opportunity to attend Damage training courses and are supplied with the necessary technical information. Observing the instructions in this manual helps reduce the risk of unnecessary If these maintenance operations are not wear and damage to the power tool.

  • Page 48: Main Parts

    14 Front hand guard 15 Front handle (handlebar) 16 Decompression valve 17 Starter grip 18 Fuel filler cap 19 Master Control lever 20 Throttle trigger 21 Throttle trigger interlock 22 Rear handle 23 Rear hand guard Serial number MS 440...

  • Page 49: Specifications

    For further details on compliance with dry, without bar and chain Vibration Directive 2002/44/EC see Engine MS 440: 6.3 kg www.stihl.com/vib. MS 440 with handle heating: 6.5 kg Sound pressure level L to ISO 22868 STIHL single cylinder two-stroke engine Cutting Attachment 101 dB(A) Displacement: 70.7 cc...

  • Page 50: Ordering Spare Parts

    Take the product, replacement parts which have been accessories and packaging to an Serial number approved by STIHL for this power tool or approved disposal site for environment- are technically identical. Only use high- friendly recycling. quality replacement parts in order to...

  • Page 51: Ec Declaration Of Conformity

    English DPLF EC Declaration of Conformity Deutsche Prüf- und Zertifizierungsstelle für Land- und Forsttechnik (NB 0363) Spremberger Straße 1 ANDREAS STIHL AG & Co. KG D-64823 Groß-Umstadt Badstr. 115 D-71336 Waiblingen Certification No. Germany K-EG-2009/3185 declare in exclusive responsibility that...
  • Page 52 0458-175-0121 englisch www.stihl.com *04581750121* 0458-175-0121...

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