Stihl MS 380 Manual
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Stihl MS 380 Manual

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Enlarged version
Contents
Safety Precautions ........................... 3
Using the Saw .................................. 9
Tensioning the Saw Chain .............. 18
Checking Chain Tension ................. 18
Fuel ................................................ 19
Fueling ............................................ 20
Chain Lubricant .............................. 21
Filling Chain Oil Tank ...................... 22
Chain Brake .................................... 23
Operating Instructions .................... 27
Oil Quantity Control * ...................... 28
Taking Care of Guide Bar ............... 29
Cleaning the Air Filter ..................... 29
Adjusting the Carburetor ................ 30
Checking the Spark Plug ................ 32
in Muffler* ....................................... 33
and Rewind Spring ......................... 34
Storing the Machine ........................ 36
Chain Sprocket ............................... 36
Saw Chain ...................................... 38
*
MS 380
Maintenance Chart ......................... 42
Avoid Damage ................................ 44
Main Parts and Controls ................. 45
Specifications ................................. 46
Special Accessories ....................... 46
Ordering Spare Parts ..................... 47
Maintenance and Repairs .............. 47
of conformity ................................... 48
Quality Certification ........................ 48
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
This machine has been built using
modern production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and troublefree use
of the machine.
Please contact your dealer or our
sales company if you have any
queries concerning your machine.
Hans Peter Stihl
English
1

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Summary of Contents for Stihl MS 380

  • Page 1: Table Of Contents

    Minimize Wear and Thank you for choosing a quality Using the Saw ........9 Avoid Damage ........ 44 engineered STIHL product. Mounting the Bar and Chain ... 17 Main Parts and Controls ....45 This machine has been built using Tensioning the Saw Chain ....

  • Page 2: Guide To Using This Manual

    Engineering improvements in different ways: individual components. STIHL’s philosophy is to continually A bullit marks a step or procedure Note or hint which is not essential improve all of its products. As a result, for using the machine, but may...

  • Page 3: Safety Precautions

    Non- dexterity or judgment. Only use attachments supplied by observance of the STIHL or explicitly approved for your If you have a pacemaker: The ignition following safety precautions may cause chainsaw model by STIHL. Other system of this power tool produces a serious or even fatal injury.
  • Page 4 Wear a safety hard hat to protect your head. Wear safety glasses and sound barriers, i.e. ear plugs or ear muffs. Wear heavy-duty, non- slip gloves, preferably made of chrome leather. STIHL offers a comprehensive range of personal protection equipment MS 380...
  • Page 5 Note that the chain continues to rotate To reduce risk of personal injury, do not for a short period after your let go of the operate your saw if it is damaged or not throttle trigger. properly assembled. MS 380...
  • Page 6 If the work area is very dusty, case of doubt, have the saw checked by time. wear a respirator. your STIHL servicing dealer. To reduce risk of fire, keep hot exhaust Make sure the chain does not rotate gases and hot muffler away from easily while the engine is idling.
  • Page 7 – for a description of this device refer to "Chain Brake" chapter in this Kickback causes the the saw to be manual. suddenly thrown up and back in an uncontrolled arc towards the operator. MS 380...
  • Page 8 No general recommendation can be Have all other worked performed by your given for the length of usage because it STIHL dealer. Only use genuine STlHL – Always cut with a correctly depends on several factors. replacement parts. Never modify your...

  • Page 9: Using The Saw

    Do not touch a hot muffler. Check of a chain brake malfunction. condition of muffler at regular intervals to Take the saw to your STIHL dealer. Do Work calmly and carefully – in daylight reduce the risk of fires and damage to...
  • Page 10 – Never work in a tree. to kick back unexpectedly. – Never work on any insecure support. – Do not work above shoulder height. – Never operate the saw with one hand. MS 380...
  • Page 11 – Snow load. operator. – Check the general condition of the tree. Take particular care with dry or damaged trees (decayed or rotted). Maintain a distance of at least 2 tree lengths from next felling site. MS 380...
  • Page 12 B = Escape paths observe country-specific regulations on felling techniques. – Establish paths of escape for everyone concerned – opposite to STIHL recommends the following direction of fall at about 45°. sequence: – Remove large buttress roots: Make – Remove all obstacles from escape vertical cut first, then horizontal –...
  • Page 13 Do not use sapwood cuts on diseased Important points: trees. – Felling notch at a right angle to planned direction of fall. – As close as possible to the ground. – Cut to a depth of about the trunk diameter. MS 380...
  • Page 14 The spiked bumper rolls against the trunk. First cut (1): Nose of guide bar should enter wood just behind the hinge – hold the saw horizontally and swing it as far as possible. MS 380...
  • Page 15 Do not cut through the hinge! bar in the felling notch and then position. Take care because of the risk of kickback or pushback. enlarge the cut to both sides. Make the plunge cut (6) very carefully. Danger of pushback. MS 380...
  • Page 16 If not otherwise possible, make the bucking cut from the bottom upwards (underbuck) – be wary of pushback. Lying logs must not touch the ground at the point where the cut is made – this will damage the chain. MS 380...

  • Page 17: Mounting The Bar And Chain

    Fit the chain – start at the bar nose. they may be damaged beyond repair after a short period of operation. MS 380...

  • Page 18: Tensioning The Saw Chain

    Check chain tension frequently – see and screw on the nuts only finger- often than one that has been in use for "Operating Instructions". tight. some time. Go to “Tensioning the Saw Chain”. Check chain tension frequently – see chapter "Operating Instructions". MS 380...

  • Page 19: Fuel

    (piston seizure, rapid rate of If no STIHL two-stroke engine oil is wear, etc.). available, use only quality two-stroke oil Avoid direct skin contact with Gasoline designed for use in air cooled engines.

  • Page 20: Fueling

    Position the machine so that the filler cap is facing up. Take care not to spill fuel while fueling Storing Fuel and do not overfill the tank. The STIHL filler nozzle* is recommended for this Fuel mix ages: purpose and also helps you avoid Only mix sufficient fuel for a few months inhaling fuel vapor.

  • Page 21: Chain Lubricant

    Rapidly biodegradable STIHL Bioplus is recommended. Biological chain oil must be resistant to aging (e.g. STIHL Bioplus) since it will otherwise quickly turn to resin. This results in hard deposits that are difficult to remove, especially in the...

  • Page 22: Filling Chain Oil Tank

    Always check chain lubrication and oil level in tank before starting work. Every new chain has to be broken in for about 2 to 3 minutes. After breaking in chain, check chain tension and adjust if necessary – see “Checking Chain Tension”. MS 380...

  • Page 23: Chain Brake

    High revs with the chain brake engaged (chain locked) will quickly damage the powerhead and chain drive (clutch, chain brake). MS 380...

  • Page 24: Information Before You Start

    Before You Start Chain brake maintenance The chain brake is subject to normal wear. It is necessary to have it serviced and maintained regularly by trained personnel, such as your STIHL servicing dealer, at the following intervals: Full-time professional users: every 3...
  • Page 25 Put your right foot into the rear If the engine is new, pull the starter handle and press down. several times to prime the fuel system. MS 380...

  • Page 26: When Engine Begins To Fire

    As the chain brake is still engaged, Observe safety precautions. the engine must be returned to idling speed immediately – or the Always check operation of chain engine and chain brake might lubrication before starting work. otherwise be damaged. MS 380...

  • Page 27: If Engine Doesn’t Start

    (clutch, start position – even if engine is chain brake). cold. Now start the engine. Move Master Control (7) to run position. Loosen knob (10) in direction of arrow. Remove carburetor box cover (11). MS 380...

  • Page 28: Oil Quantity Control

    Your chain must always be wetted with a film of lubricant. Storing for a long period: See “Storing the Unit”! * Special accessory MS 380...

  • Page 29: Taking Care Of Guide Bar

    (3). Remove the carburetor box Measure groove depth – cover (3). with scale on filing gauge* – in area used most for cutting. Clean away loose dirt from around the filter. see “Guide to Using this Manual” MS 380...

  • Page 30: Adjusting The Carburetor

    In case of stubborn dirt: Your carburetor comes from the factory Wash the filter components in with a standard setting. STIHL universal cleaner or a clean, non-flammable solution (e.g. warm This is the optimum setting under the soapy water) and then dry.

  • Page 31: Standard Setting

    If you do not have a tachometer, do running – then turn screw another not set the high speed screw any quarter turn in the same direction. leaner by turning it beyond the standard setting. MS 380...

  • Page 32: Checking The Spark Plug

    It is usually necessary to change the eroded. setting of the idle speed screw (LA) Install only suppressed spark plugs after every correction to the low speed of the type approved by STIHL – screw (L). see "Specifications". To reduce the risk of arcing and fire:...

  • Page 33: Spark Arresting Screen In Muffler

    On all spark plugs: carbonized, fit a new one. Always press the boot (2) firmly on Take out the screws (3). to the spark plug (3). Remove muffler upper casing (4). see "Guide to Using this Manual" MS 380...

  • Page 34: Replacing Starter Rope And Rewind Spring

    Carefully remove the rope rotor with washer (3) and pawl (4). Pull the rope through the rotor and secure it with a simple overhand The rewind spring may pop out knot. during this procedure – take care to avoid injury. MS 380...
  • Page 35 When the starter rope is fully extended it must still be possible to rotate the rotor another half turn. If this is not the case, the spring is overtensioned and could break. Take one turn of rope off the rotor in such a case. MS 380...

  • Page 36: Storing The Machine

    (Special Accessories) to check the depth of the wear marks on sprockets. It is best to use two chains in rotation with one sprocket. Use only original STIHL chain sprockets to ensure correct operation of the chain brake. MS 380...

  • Page 37: Spur Sprocket, Clutch Drum

    – each end of the ring must cover (7) with cover washer (8). locate on the top of a tooth. Replace the rim sprocket (3) with cavities facing outward. Fit the washer and E-clip on the crankshaft. MS 380...

  • Page 38: Maintaining And Sharpening Saw Chain

    – there is a risk of increased Micro = Semi-chisel kickback of the chainsaw, with Super = Full chisel resulting risk of injury. The specified angles A and B are obtained automatically if the recommended files or sharpening tools and correct settings are used. MS 380...

  • Page 39: See "Guide To Using This Manual

    To rotate the chain – pull hand guard against handle. Sharpen chain frequently, take away as little metal as possible – two or three strokes of the file are usually enough. see “Guide to Using this Manual” see “Guide to Using this Manual” MS 380...

  • Page 40: Depth Gauge Setting

    (9.32) 0.45 (0.018) grinder. (9.32) 0.65 (0.026) 0.325 (8.25) 0.65 (0.026) (9.32) 0.65 (0.026) 0.404 (10.26) 0.80 (0.031) File down the depth gauge until it is level with the filing gauge. MS 380...

  • Page 41: Stihl

    5605 772 5506 5605 750 4330 1106 893 4000 0814 252 3356 5605 007 1030 1) Use triangular file 0811 421 8971 for PM1 and RM2 2) consisting of file holder with round file, flat file and filing gauge MS 380...

  • Page 42: Maintenance Chart

    Check (wear, damage) Clean and turn over Guide bar Deburr Replace Chain sprocket Check Clean Air filter Replace Inspect AV elements (rubber buffers, springs) Replace Cooling inlets Clean Cylinder fins Clean 1) STIHL dealer 2) see "Chain brake" MS 380...

  • Page 43: See "Guide To Using This Manual

    Spark arresting screen* in muffler Clean or replace Check Chain catcher Replace 2) Firmly tighten cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation see “Guide to Using this Manual“ MS 380...

  • Page 44: Minimize Wear And Avoid Damage

    Filters (air, oil, fuel) – Alterations or modifications to the neglect or deficient maintenance – Starter mechanism product not approved by STIHL. (e.g. of air and fuel filters), incorrect – Spark plug carburetor adjustment or – Using attachments, Power Tool –...

  • Page 45: Main Parts And Controls

    14 Front hand guard 15 Front handle (handlebar) 16 Starter grip 17 Fuel tank filler cap 18 Master Control lever 19 Throttle trigger 20 Throttle trigger interlock 21 Rear handle 22 Rear hand guard see "Guide to Using this Manual" MS 380...

  • Page 46: Specifications

    (4.9–5.3 bhp) Fuel tank capacity: 0.68 l (680 cm MS 380 N Öltankinhalt: 0.36 l (360 cm Contact your STIHL dealer for more Engine power information on these and other special Weight (without bar and chain) to ISO 7293 3.3 kW...

  • Page 47: Ordering Spare Parts

    Warranty claims following repairs can be to normal wear and tear. accepted only if the repair has been When purchasing these parts, always performed by an authorized STIHL quote the saw model, the part numbers dealer using original STIHL replacement and names of the parts.

  • Page 48: Manufacturer's Declaration Of Conformity

    Director certified that all products manufactured to Directive 2000/14/EC, Annex V, using Group Product Management by STIHL meet the strict requirements of the ISO 9207 standard. Engineering Services the ISO 9001 standard for quality management systems in terms of...

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