Stihl MS 400 C-M Instruction Manual Download

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10 Checking the Saw

10.1

Checking the Chain Sprocket

► Shut off the engine.

► Disengage the chain brake.

► Remove the chain sprocket cover.

► Remove the bar and chain.

0000-GXX-3162-A0

► Use a STIHL gauge to check the wear marks

on the sprocket.

► If wear marks are deeper than a = 0.5 mm: Do

not use your chainsaw and contact your

STIHL servicing dealer for assistance.

The chain sprocket must be replaced.

10.2

Checking the Guide Bar

► Shut off the engine and engage the chain

brake.

► Remove the chain and guide bar.

0000-GXX-1217-A0

► Measure depth of bar groove with scale on

STIHL filing gauge.

► Install a new guide bar if one of the following

points applies:

–

Guide bar is damaged.

–

Measured bar groove depth is less than

specified minimum depth, 19.3.

–

Bar groove is pinched or splayed.

► If you have any queries: Contact your STIHL

servicing dealer for assistance.

10.3

Checking the Saw Chain

► Shut off the engine and engage the chain

brake.

0000-GXX-1218-A0

► Use a STIHL filing gauge (2) to check the

height of the depth gauges (1). The STIHL fil‐

ing gauge must match the chain pitch.

► If a depth gauge (1) projects from the filing

gauge (2): Lower the depth gauge (1), 16.3.

0000-GXX-1372-A0

► Make sure the service marks (1 to 4) on the

cutters are visible.

► If one of the service marks is not visible on a

cutter: Do not use your chainsaw and contact

your STIHL servicing dealer for assistance.

► Use a STIHL filing gauge to check that a filing

angle of 30° has been maintained on all cut‐

ters. The STIHL filing gauge must match the

chain pitch.

► If a filing angle of 30° has not been main‐

tained: Resharpen the saw chain.

► If you have any queries: Contact your STIHL

servicing dealer for assistance.

10.4

Testing the Chain Brake

► Shut off the engine and engage the chain

brake.

WARNING

■ The chain's cutters are very sharp. There is a

risk of cut injuries.

► Wear work gloves made of durable mate‐

rial.

► Try to pull the chain along the guide bar by

hand.

If the chain cannot be pulled along the bar by

hand, the chain brake is functioning.

English

10 Checking the Saw

0458-788-0121-B

Summary of Contents for MS 400 C-M

Page 1: ...MS 400 C M Instruction Manual 2 29 ...

Page 2: ...sible handling of natural resources This user manual is intended to help you use your STIHL product safely and in an environmentally friendly manner over a long service life We thank you for your confidence in us and hope you will enjoy working with your STIHL product Dr Nikolas Stihl IMPORTANT READ BEFORE USING AND KEEP IN A SAFE PLACE FOR REFERENCE 2 Guide to Using this Manual 2 1 Symbols used w...

Page 3: ...ndle For operating holding and controlling the chainsaw 21 Rear Hand Guard Protects operator s right hand from contact with the chain if it comes off the bar or breaks 22 Throttle Trigger Controls engine speed 23 Master Control Lever For starting running and stopping the engine 24 Fuel Tank Cap Closes the fuel tank 25 Starter Grip Serves to crank the engine 26 Oil Pump Adjusting Screw Serves to ad...

Page 4: ...e or she may work only under the supervision of or as instructed by a responsible person The user can identify and assess the dangers of the chainsaw The user must be of legal age or is being trained in a trade under supervi sion in accordance with national rules and regulations The user has received instruction from a STIHL servicing dealer or other experi enced user before working with the chain...

Page 5: ...rials 4 6 Safe Condition 4 6 1 Chainsaw The chainsaw is in a safe condition if the follow ing points are observed The chainsaw is not damaged There is no fuel leaking from the chainsaw The fuel tank and oil tank caps are closed The chainsaw is clean The chain catcher is fitted and undamaged The chain brake is operating properly The controls function properly and have not been modified The chain lu...

Page 6: ... and do not attempt to start the engine until all parts of the saw and the area around it are dry Do not smoke Never refuel near a fire Shut off the engine and allow it to cool down before refueling Start the engine at least 3 meters from the fueling spot outdoors only Inhaling fuel fumes and gasoline fumes can have toxic effects Avoid inhaling fuel fumes or gasoline fumes Refuel in a well ventila...

Page 7: ...ak Exhaust gas is produced when the engine is running Breathing in exhaust gas can have toxic effects Avoid inhaling exhaust gas Operate the chainsaw is a well ventilated location In the event of nausea headache visual disturbances problems with hearing or diz ziness Stop work and seek medical advice The user s ability to hear and assess noises is restricted when wearing hearing protection with th...

Page 8: ...s clear Do not allow bystanders children or ani mals within 2 5 tree lengths of the felling site Remove broken or dead branches from the tree crown before felling If broken or dead branches cannot be removed from the crown Do not fell the tree Observe tree crown and crowns of neigh boring trees and keep clear of falling branches When the tree falls the trunk can break or spring back in the directi...

Page 9: ... in 0000 GXX 1348 A0 The saw is pulled away from the operator when the bottom of the bar is used for cutting WARNING If the rotating chain makes contact with a hard object and is suddenly pinched the saw is abruptly jerked away from the operator The operator can lose control of the saw and be seriously or fatally injured Hold the saw firmly with both hands Operate the saw as described in this inst...

Page 10: ...nts a water jet or pointed objects can damage the chainsaw guide bar and saw chain If the chainsaw guide bar or saw chain are not cleaned cor rectly components may no longer function properly or safety devices may be rendered inoperative They may cause serious injury to persons Clean the chainsaw guide bar and saw chain as described in this user manual If the chainsaw is not maintained as describe...

Page 11: ...ket 7 Collar studs 5 are located in slot in tail of guide bar 6 Peg of tensioner slide 4 engages hole 8 in guide bar 6 The guide bar 6 may be either way round The logo on the guide bar 6 may also be upside down Disengage the chain brake 0000 GXX 2928 A0 Turn the tensioning screw 3 clockwise until the chain fits snugly against the bar Make sure the drive link tangs engage the bar groove The guide b...

Page 12: ... overfill the tank If the grip on the oil tank cap has dropped into the closed position Raise the grip until it is vertical 2 3 1 0000 GXX 2931 A0 1 Place the cap in the filler opening so that mark 1 lines up with mark 2 Press the cap down and rotate it clockwise as far as stop The cap snaps into place The mark 1 points to mark 3 Check to see if the oil tank cap can be pulled upwards and off If th...

Page 13: ... performance engine oil in accordance with JASO FB JASO FC JASO FD ISO L EGB ISO L EGC or ISO L EGD STIHL specifies STIHL HP Ultra two stroke engine oil or an equivalent high performance engine oil in order to maintain emission limits throughout the machine s service life Make sure that the octane number of the gas oline is at least 90 RON and the ethanol con tent is not more than 10 Make sure the...

Page 14: ... the grip on the fuel tank cap has dropped into the closed position Raise the grip until it is vertical 2 3 1 0000 GXX 2935 A1 1 4 Place the cap in the filler opening so that mark 1 lines up with mark 2 Press the cap down and rotate it clockwise as far as stop The cap snaps into place The mark 1 is in line with mark 4 and points to mark 3 Check to see if the fuel tank cap can be pulled upwards and...

Page 15: ...rip quickly and allow the starter rope to rewind several times until the engine runs If the Master Control lever 3 is in position Briefly depress the lockout lever 4 and blip the throttle trigger 5 The Master Control lever springs to position The engine runs at idling speed NOTICE Do not accelerate the engine with the chain brake engaged since this can damage the chain brake Disengage the chain br...

Page 16: ... 0000 GXX 1218 A0 2 Use a STIHL filing gauge 2 to check the height of the depth gauges 1 The STIHL fil ing gauge must match the chain pitch If a depth gauge 1 projects from the filing gauge 2 Lower the depth gauge 1 16 3 0000 GXX 1372 A0 1 2 3 4 Make sure the service marks 1 to 4 on the cutters are visible If one of the service marks is not visible on a cutter Do not use your chainsaw and contact ...

Page 17: ...r over a light surface Open the throttle Chain oil is thrown off the chain and is visible on the light surface Chain lubrication is oper ating properly If no chain oil can be seen Shut off the engine Fill up with chain oil Check chain lubrication again If chain oil is still not visible on the light sur face Do not use your chainsaw and contact your STIHL servicing dealer for assistance Chain lubri...

Page 18: ... trigger WARNING If the chain brake is disengaged the chain may rotate This can result in serious injuries Hold the chainsaw as described in this instruction manual Do not touch the rotating saw chain Disengage the chain brake NOTICE The calibration process is aborted if the throt tle trigger is released before the saw is prop erly calibrated It is then necessary to restart the calibration process...

Page 19: ...around the handlebar and thumb of right hand around the control handle 11 6 Sawing WARNING If kickback occurs the chainsaw can be thrown up in the direction of the operator This may result in serious or fatal injury to the user Always cut with the chain running at full speed Do not cut with the upper quadrant of the guide bar nose Begin the cut with the chain running at full speed and keep the gui...

Page 20: ... C E G C Felling notch The felling notch determines the direction of fall D Hinge The hinge helps control the falling tree The width of the hinge is 1 10 of the trunk diame ter E Felling cut The tree is felled with the felling cut The fell ing cut is 1 10 of the trunk diameter at least 3 cm above the bottom of the felling notch F Stabilizing strap The stabilizing strap supports the tree and helps ...

Page 21: ...is snow on the tree the snow load The direction of slope Wind direction and speed Nearby trees if any There are different features of these conditions Only two features are described in this Instruc tion Manual 0000 GXX 1253 A0 1 2 1 Normal tree A normal tree is vertical and has an even crown 2 Leaner A leaner stands at an angle and the crown faces in the direction of fall 11 8 7 Felling normal sm...

Page 22: ...warning With outstretched arms cut through the stabi lizing strap horizontally from outside at the same level as the felling cut The tree falls 11 8 9 Felling a small diameter leaner A leaner is felled with a felling cut and holding strap This felling cut must be performed if the tree diameter is less than the guide bar s length Shout a warning 0000 GXX 1258 A0 1 2 Plunge the guide bar into the fe...

Page 23: ... the saw Carry the saw by holding the front handle in your right hand with the guide bar pointing to the rear Transporting the saw in a vehicle Secure the saw to prevent turnover and move ment 14 Storing 14 1 Storing the Chainsaw Shut off the engine and engage the chain brake Fit the scabbard so that it completely covers the guide bar Observe the following points when storing the saw Saw is out of...

Page 24: ... running water If the filter 3 is damaged Install a new filter 3 WARNING Cleaning agent may cause irritation if it con tacts the skin or eyes Observe the information supplied with the cleaning agent Avoid contact with cleaning agents In case of contact with the skin Wash affected areas with plenty of water and soap In case of contact with the eyes Rinse eyes with plenty of water for at least 15 mi...

Page 25: ... air filter Have oil tank cleaned by a STIHL servicing dealer Have fuel tank cleaned by a STIHL servicing dealer Have pickup body filter in fuel tank cleaned by a STIHL servicing dealer Every 12 months Have pickup body filter in fuel tank replaced by a STIHL servicing dealer 16 2 Deburring the Guide Bar A burr can build up on the outer edge of the guide bar Remove burr with a flat file or a STIHL ...

Page 26: ...es not start Insufficient fuel in the tank Mix fuel and refuel the chainsaw Engine is flooded Clear the combustion chamber Carburetor is too hot Allow chainsaw to cool down Carburetor is iced up Allow saw to warm up to 10 C Engine idles errati cally Carburetor is iced up Allow saw to warm up to 10 C Engine stops while idling Carburetor is iced up Allow saw to warm up to 10 C Poor acceleration The ...

Page 27: ...ve the Master Control lever to position and hold it there Pull the starter grip and guide it back several times The combustion chamber is cleared Insert and tighten down the spark plug 3 0000 GXX 7214 A0 Press the spark plug boot 3 firmly home Place the shroud 2 in position Rotate the shroud fasteners 1 clockwise until you hear a click The shroud fasteners are locked 19 Specifications 19 1 STIHL M...

Page 28: ...applicable exhaust emission requirements are fulfilled by the intended usage and mainte nance described in this instruction manual The type approval expires if the engine is modified in any way 20 Bar and Chain Combinations 20 1 STIHL MS 400 C M Chainsaw Pitch Drive link gauge groove width Length Guide bar Nose sprocket teeth Number of drive links Saw chain 3 8 1 6 mm 40 cm Rollomatic E 11 60 36 R...

Page 29: ...eloped and manu factured in compliance with the following stand ards in the versions valid on the date of produc tion EN ISO 11681 1 EN 55012 and EN 61000 6 1 The EC type examination in accordance with Directive 2006 42 EC Article 12 3 b was carried out at DPLF Deutsche Prüf und Zertifizierungs stelle für Land und Forsttechnik GbR NB 0363 Spremberger Straße 1 64823 Groß Umstadt Germany Certificati...

Page 30: ...English 23 EC Declaration of Conformity 30 0458 788 0121 B ...

Page 31: ...23 EC Declaration of Conformity English 0458 788 0121 B 31 ...

Page 32: ...www stihl com 04587880121B 04587880121B 0458 788 0121 B 0458 788 0121 B ...

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