background image

► Tip of the guide bar must penetrate the wood

before the holding strap (4) – guide the chain‐

saw absolutely horizontally and swivel as

widely as possible

► Make the felling cut up to the hinge (5)

Do not cut into the hinge

► Make the felling cut up to the holding strap (6)

Do not cut into the holding strap.

001BA268 KN

Shout a second warning immediately before the

tree falls.

► With outstretched arms, cut through the hold‐

ing strap at a downward angle from outside.

5

Cutting Attachment

A cutting attachment consists of the saw chain,

guide bar and chain sprocket.
The cutting attachment that comes standard is

designed to exactly match the chain saw.

001BA248 KN

1

2

3

a

The pitch (t) of the saw chain (1), chain

sprocket and the nose sprocket of the Rollo‐

matic guide bar must match.

The drive link gauge (2) of the saw chain (1)

must match the groove width of the guide

bar (3).

If non-matching components are used, the cut‐

ting attachment may be damaged beyond repair

after a short period of operation.

5.1

Chain Scabbard

001BA244 KN

Your saw comes standard with a chain scabbard

that matches the cutting attachment.
If guide bars of different lengths are mounted to

the saw, always use a chain scabbard of the cor‐

rect length which covers the complete guide bar.
The length of the matching guide bars is marked

on the side of the chain scabbard.

6

Mounting the Bar and

Chain (side chain ten‐

sioner)

WARNING

Do not connect the power tool to the wall outlet

yet.

6.1

Removing the Chain Sprocket

Cover

9913BA001 KN

► Unscrew the nut and remove the chain

sprocket cover.

5 Cutting Attachment

English

0458-764-0121-B

15

Summary of Contents for MSE 250 C

Page 1: ...MSE 250 C Instruction Manual 2 34 ...

Page 2: ...ance Every effort has been made to ensure your satis faction and trouble free use of the product Please contact your dealer or our sales company if you have any queries concerning this product Your Dr Nikolas Stihl 1 Guide to Using this Manual This instruction manual covers a STIHL electric chain saw which is also referred to as the saw power tool or machine in the descriptions 1 1 Pictograms The ...

Page 3: ...doctor before operating a chain saw Do not operate the chain saw if you are under the influence of any substance drugs alcohol which might impair vision dexterity or judgment To reduce the risk of accidents or injury put off the work in poor weather conditions rain snow ice wind 2 2 Intended Use The chainsaw may be used for cutting wood and wooden objects only It is particularly suitable for cutti...

Page 4: ...ck Voltage and frequency of the machine see rating plate and the voltage and frequency of your power supply must be the same Check the connecting cord plug extension cord and safety devices for damage Never use damaged cords couplings and plugs or connecting cords that do not comply with regu lations Always connect the power tool to a properly installed wall outlet Check that the insulation of the...

Page 5: ...et 9931BA042 KN Always hold your saw firmly with both hands Right hand on the rear handle even if you are left handed To ensure safe control wrap your fingers tightly around the front handle and control handle In case of imminent danger or in an emergency switch off the chainsaw immediately move hand guard to ƒ and disconnect the plug from the wall outlet The drive motor is not waterproof Never wo...

Page 6: ... to ƒ disconnect the plug from the wall outlet and fit the chain scabbard 2 12 Storing When the chainsaw is not in use store it so that it does not endanger others Secure it against unauthorized use Store your chainsaw in a dry location with the hand guard on ƒ and the plug disconnected from the wall outlet 2 13 Vibrations Prolonged use of the power tool may result in vibration induced circulation...

Page 7: ...n the saw is suddenly thrown up and back in an uncontrolled arc towards the operator 3 2 Kickback occurs if e g 001BA257 KN when the upper quadrant of the bar nose unin tentionally contacts wood or another solid object e g when another limb is touched acci dentally during limbing when the chain at the nose of the guide bar is pinched in the cut 3 3 Quickstop chain brake This device reduces the ris...

Page 8: ...ty of roads railways power lines etc take extra precautions If nec essary inform the police utility company or rail way authority 4 Working Techniques Only specially trained persons may perform cut ting and felling operations and all other associ ated work plunge cutting limbing etc To reduce the risk of accidents and injury do not attempt felling or limbing if you are not an experi enced chainsaw...

Page 9: ...r work on an insecure support Never work above shoulder height Never use the machine with just one hand Begin cutting with the saw at full throttle and engage the spiked bumper firmly in the wood and then continue cutting Never work without the spiked bumper because the saw may pull you forwards and off balance Always hold the spiked bumper securely against the tree or limb At the end of the cut t...

Page 10: ... The wind direction and speed do not fell in high winds Direction of slope Neighboring trees Snow load Take the general condition of the tree into account be especially careful with trunk damage or deadwood brittle rotten or dead wood 001BA040 KN B B A Direction of fall B Escape path escape routes Establish escape paths for each worker approx 45 diagonally opposite to the direc tion of fall Clear ...

Page 11: ...trunk diameter align the tip of the meter stick in the defined direction of fall Mark the trunk at both ends of the meter stick to limit the felling notch Making the felling notch 001BA247 KN When making a felling notch align the chainsaw so that the notch lies at a right angle to the direc tion of fall During the procedure various sequences are permitted for making a felling notch with a bottom h...

Page 12: ...0 to 1 5 of the trunk diameter Do not cut into the strip during the felling cut With rotten trunks leave a wider strip Plunge cutting For relieving cuts during shortening For wood carving 001BA269 KN 3 1 2 Use a low kickback saw chain and proceed with special care 1 Begin cut by applying the lower portion of the guide bar nose do not use upper portion because of risk of kickback Cut at full streng...

Page 13: ...ng before starting the felling cut Plunge cut the felling cut E plunge the guide bar fully in Engage the spiked bumper behind the hinge and use this as the rotation point reposition the chainsaw as little as possible Make the felling cut up to the hinge 1 Do not cut into the hinge Make the felling cut up to the stabilizing strap 2 Do not cut into the stabilizing strap 001BA273 KN 3 Set the felling...

Page 14: ...he felling cut towards the holding strap 2 Cut horizontally Do not cut into the holding strap 001BA266 KN Shout a second warning immediately before the tree falls With outstretched arms cut through the hold ing strap at a downward angle from outside B Thick trunks 001BA267 KN 1 2 3 4 5 6 Perform this felling cut when the tree diameter is greater than the cutting length of the chainsaw Engage the b...

Page 15: ...ain sprocket and the nose sprocket of the Rollo matic guide bar must match The drive link gauge 2 of the saw chain 1 must match the groove width of the guide bar 3 If non matching components are used the cut ting attachment may be damaged beyond repair after a short period of operation 5 1 Chain Scabbard 001BA244 KN Your saw comes standard with a chain scabbard that matches the cutting attachment ...

Page 16: ... show the chain s direction of rotation Fit the guide bar over the studs 2 and engage the tensioner slide in the hole 3 place the chain over the sprocket 4 at the same time 5 9913BA004 KN Turn the tensioning screw 5 clockwise until there is very little chain sag on the underside of the bar and the drive link tangs are engaged in the bar groove Refit the sprocket cover and tighten the nut only mode...

Page 17: ... on Operating Instructions 9 Chain Lubricant For automatic and reliable lubrication of the chain and guide bar use only an environmen tally compatible quality chain and bar lubricant Rapidly biodegradable STIHL BioPlus is recom mended NOTICE 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 difficu...

Page 18: ... and do not overfill the tank STIHL recommends you use the STIHL filler noz zle for chain oil special accessory Filling Up with Chain Oil 10 4 Closing the Tank Cap 001BA252 KN Grip must be vertical Fit the cap marks on tank cap and oil tank must line up Press the cap down as far as stop 001BA253 KN While holding the cap depressed turn it clock wise until it engages in position 001BA254 KN The mark...

Page 19: ...otating the cap counterclockwise about a quarter turn this causes the bottom of the cap to be turned to the correct position Turn the cap clockwise and lock it in position see section on Closing the Tank Cap 10 6 Checking Oil Level 1 9913BA008 KN Check the oil level regularly during operation Top up the oil tank when the oil level reaches the min mark 1 or earlier If the oil level in the tank does...

Page 20: ...the saw chain has run in check the tension of the chain and correct if necessary see Checking the chain tension 12 Coasting Brake 2 1 9913BA009 KN The coasting brake brings the running chain to a standstill when you let go of the trigger switch 1 Coasting brake off 2 Coasting brake activated 13 Chain Brake 13 1 Locking the chain 9931BA003 KN in an emergency The chain brake is activated by pushing ...

Page 21: ... Power Sup ply The voltage and frequency of the machine see rating plate must match the voltage and fre quency of the power connection The minimum fuse protection of the power con nection must comply with the specifications see Specifications The machine must be connected to the power supply via an earth leakage circuit breaker to dis connect the power supply if the differential cur rent to earth ...

Page 22: ...e trigger switch is fully released If you release the trigger switch slowly or only partly the saw chain will continue to run for several seconds 9931BA003 KN Move hand guard to ƒ the chain is locked During longer work breaks disconnect the plug from the wall outlet When the machine is not in use store it in such a way that it does not endanger others Secure it against unauthorized use 17 Overload...

Page 23: ... Chain cold Tension is correct when the chain fits snugly against the underside of the bar and can still be pulled along the bar by hand Retension if neces sary see Tensioning the Saw Chain 18 1 3 Chain at operating temperature The chain stretches and begins to sag The drive links must not come out of the bar groove the chain may otherwise jump off the bar Retension the chain see Tensioning the Sa...

Page 24: ...ket are deeper than 0 5 mm the life of the chain would otherwise be reduced Use reference gauge special accessory to check the depth of the wear marks It is best to use two saw chains in rotation with one sprocket STIHL recommends the use of original STIHL sprockets to ensure correct operation of the chain brake 3 1 9931BA016 KN Ease the E clip 1 off the shaft Remove and inspect the washer 3 repla...

Page 25: ... of 10 Ripping chains have an X in their designations B Side plate angle The correct side plate angle is obtained automat ically if you use the prescribed file holder and file diameter Cutter shapes Angle A B Micro semi chisel cutter e g 63 PM3 26 RM3 36 RM 30 75 Super chisel cutter e g 63 PS3 26 RS 36 RS3 30 60 Ripping chain e g 63 PMX 36 RMX 10 75 The angles must be the same on all cutters If th...

Page 26: ...avoid one sided wear Use a piece of hardwood to remove burrs from the cutting edge Check angles with the filing gauge All cutters must be the same length If the cutters are not the same length they will have different heights This makes the chain run roughly and can cause it to break Find the shortest cutter and then file all other cutters back to the same length It is best to have this work done ...

Page 27: ...ling gauge on the chain the high est point of the depth gauge must be level with the filing gauge After sharpening clean the chain thoroughly remove filings or grinding dust lubricate the chain thoroughly Before a long out of service period clean the chain and store it in a well oiled condition Sharpening Tools special accessories Chain pitch Round file Round file File holder Filing gauge Flat fil...

Page 28: ...tion X Check1 2 X Chain oil tank Clean X Chain Lubrication Check X Saw chain Inspect also check sharpness X Check chain tension X Sharpen X Guide bar Check wear damage X Clean and turn over X X Deburr X Replace X X Chain sprocket Check X Cooling inlets Clean X All accessible screws and nuts Retighten X Chain catcher on sprocket cover Check X Replace sprocket cover X Power cord Check X Replace1 X S...

Page 29: ...ge that may occur Among other things this includes Damage to the motor due to neglect or defi cient maintenance e g not cleaning cooling air inlets Damage due to incorrect electrical connection voltage inadequately rated connecting cords Corrosion and other consequential damage resulting from improper storage Damage to the product resulting from the use of poor quality replacement parts 25 2 Parts...

Page 30: ...Directive 2006 42 EC is 2 0 m s2 for the vibration level The vibration values quoted above have been measured according to a standardized test pro cedure and may be used to compare electric power tools Depending on the type of usage the vibrations that actually occur may differ from the values quoted The vibration values quoted may be used for an initial assessment of the user s exposure to vibrat...

Page 31: ...ing dealer for the lat est information on waste disposal 31 EC Declaration of Con formity ANDREAS STIHL AG Co KG Badstr 115 D 71336 Waiblingen Germany declares under our sole responsibility that Designation Electric saw Make STIHL Series MSE 250 C Serial identification number 1210 conforms to the relevant provisions of Directives 2011 65 EU 2006 42 EC 2014 30 EU and 2000 14 EC and has been develop...

Page 32: ...or carrying pulling or unplugging the power tool Keep cord away from heat oil sharp edges or moving parts Damaged or entan gled cords increase the risk of electric shock e When operating a power tool outdoors use an extension cord suitable for outdoor use Use of a cord suitable for outdoor use reduces the risk of electric shock f If operating a power tool in a damp location is unavoidable use a re...

Page 33: ... cause entanglement of your clothing or body with the saw chain Always hold the chain saw with your right hand on the rear handle and your left hand on the front handle Holding the chain saw with a reversed hand configuration increases the risk of personal injury and should never be done Hold the power tool by insulated gripping sur faces only because the saw chain may con tact hidden wiring or it...

Page 34: ...t or injury Kickback is the result of tool misuse and or incor rect operating procedures and can be avoided by taking proper precautions as given below Maintain a firm grip with thumbs and fingers encircling the chain saw handles with both hands on the saw and position your body and arm to allow you to resist kickback forces Kickback forces can be controlled by the oper ator if proper precautions ...

Page 35: ...32 General Power Tool Safety Warnings English 0458 764 0121 B 35 ...

Page 36: ...www stihl com 04587640121B 04587640121B 0458 764 0121 B 0458 764 0121 B ...

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