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36

English

MS 380

For periods of about 3 months or longer:

:

Drain and clean the fuel tank in a 
well ventilated area.

:

Run engine until carburetor is dry, 
this helps prevent the carburetor 
diaphragms sticking together.

:

Remove the saw chain and guide 
bar, clean them and spray with 
corrosion inhibiting oil.

:

Thoroughly clean the unit, 
pay special attention to the cylinder 
fins and air filter.

:

If you use a biological chain and bar 
lubricant, e.g. STIHL BioPlus, 
completely fill the chain oil tank.

:

Store the unit in a dry and high or 
locked location, out of the reach of 
children and other unauthorized 
persons.

:

Remove the chain sprocket cover, 
chain and guide bar.

:

Disengage the chain brake:
Pull hand guard toward the front 
handle.

Replacing the Chain Sprocket

Replace the chain sprocket after 
using two Oilomatic chains.

Replace sooner if the wear marks 
on the sprocket are deeper than 
approx. 0.5 mm since this would 
reduce the life of the chain. You can 
use a reference gauge (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. 

Rim Sprocket

:

Use a screwdriver to remove 
the E-clip (

1

).

:

Take off the washer (

2

). 

:

Examine the splines on the clutch 
drum – if wear marks are severe, 
install a new clutch drum.

:

Replace the rim sprocket (

3

with cavities facing outward.

:

Refit the washer and E-clip on the 
crankshaft.

Storing the Machine

Checking and Replacing 

Chain Sprocket

001BA121 KN

Содержание MS 380

Страница 1: ...or 30 Checking the Spark Plug 32 Spark Arresting Screen in Muffler 33 Replacing Starter Rope and Rewind Spring 34 Storing the Machine 36 Checking and Replacing Chain Sprocket 36 Maintaining and Sharpe...

Страница 2: ...e is a risk of damaging the machine or its individual components Note or hint which is not essential for using the machine but may improve the operator s under standing of the situation and result in...

Страница 3: ...under the influence of any substance drugs alcohol which might impair vision dexterity or judgment If you have a pacemaker The ignition system of this power tool produces a very weak electromagnetic...

Страница 4: ...before carrying the saw longer distances more than about 50 m Always carry the saw by the front handle with the hot muffler away from your body the guide bar must point to the rear To avoid serious b...

Страница 5: ...to idle position Master control stop switch must move easily to STOP or Check that spark plug boot is secure a loose boot may cause arcing that could ignite combustible fumes and cause a fire Never at...

Страница 6: ...equipped with a catalytic converter To reduce the risk of serious or fatal injury from breathing toxic fumes ensure proper ventilation when working in trenches hollows or other confined locations The...

Страница 7: ...e reduces the risk of injury in certain situations it cannot prevent kickback If activated the brake stops the saw chain within a fraction of a second for a description of this device refer to Chain B...

Страница 8: ...symptoms frequently cold fingers itching Low outside temperatures Gripping force a tight grip hinders circulation Continual and regular users should monitor closely the condition of their hands and f...

Страница 9: ...led safety type canisters only Take care when handling gasoline Avoid direct contact with the skin and avoid inhaling fuel vapour To reduce the risk of injury shut down your chainsaw immediately in th...

Страница 10: ...f on a slope stand on the uphill side or to one side of the log Watch out for rolling logs When working at heights Always use a lift bucket Never work on a ladder Never work in a tree Never work on an...

Страница 11: ...helpers Make sure no one is endangered by the falling tree the noise of your engine may drown any warning calls Maintain a distance of at least 21 2 tree lengths from next felling site Determine direc...

Страница 12: ...the tree base and work area from interfering limbs and brush safe footing for all persons concerned Clean lower portion of tree base with an axe Sand stones and other foreign objects will dull the saw...

Страница 13: ...ter Sapwood cuts Sapwood cuts help prevent long fibered wood splintering when the tree falls Apply the cuts at both sides of the trunk at the same height as the bottom of the felling notch to a depth...

Страница 14: ...diately before the tree falls Small diameter trees simple fan cut Apply the spiked bumper behind the hinge pivot the saw around this point only as far as the hinge The spiked bumper rolls against the...

Страница 15: ...kickback Cut until depth of kerf is twice the width of the guide bar Swing saw slowly 5 into plunge cutting position Take care because of the risk of kickback or pushback Make the plunge cut 6 very ca...

Страница 16: ...r railway authority Limbing Use a low kickback chain Work with the saw supported wherever possible Do not stand on the log while limbing Do not work with the bar nose Watch for limbs which are under t...

Страница 17: ...eters e g 1 6 If non matching components of the wrong pitch or drive link gauge are run together on the same machine they may be damaged beyond repair after a short period of operation Unscrew the nut...

Страница 18: ...ing screw 1 clockwise until chain fits snugly against the underside of the bar While still holding the bar nose up tighten down the nuts firmly Go to chapter Checking Chain Tension A new chain has to...

Страница 19: ...rter Engine Oil Use only quality two stroke engine oil We recommend STIHL two stroke engine oil since it is specially formulated for use in STlHL engines and guarantees a long engine life Use only STI...

Страница 20: ...and the area around it to ensure that no dirt falls into the tank Position the machine so that the filler cap is facing up Take care not to spill fuel while fueling and do not overfill the tank The ST...

Страница 21: ...the new pickup body into the hose Place the pickup body in the tank For automatic and reliable lubrication of the chain and guide bar use only an environmentally compatible quality chain and bar lubr...

Страница 22: ...uel Close the filler cap There must still be a small amount of oil in the oil tank when the fuel tank is empty If the oil tank is still partly full the reason may be a problem in the oil supply system...

Страница 23: ...rake engaged chain locked will quickly damage the powerhead and chain drive clutch chain brake The chain brake is also activated by the inertia of the front hand guard if the kickback force of the saw...

Страница 24: ...e Master Control lever moves to the normal run position as soon as the throttle trigger is squeezed 4 Cold start this position is used to start a cold engine Observe safety precautions see chapter on...

Страница 25: ...handle tightly between your legs just above the knees Hold the front handle firmly with your left hand your thumb should be under the handlebar Pull the starter grip slowly with your right hand until...

Страница 26: ...d the front handle The chain brake is now disengaged your saw is ready for operation Always disengage the chain brake before accelerating the engine High revs with the chain brake engaged chain locked...

Страница 27: ...lever to warm start position even if engine is cold Now start the engine During break in period A factory new machine should not be run at high revs full throttle off load for the first three tank fil...

Страница 28: ...ling air This protects engine mounted components ignition carburetor from thermal overload After finishing work Slacken off the chain if you have retensioned it at operating temperature during cutting...

Страница 29: ...nk tangs will otherwise scrape along the bottom of the groove the cutters and tie straps will not ride on the bar rails Dirty air filters reduce engine power increase fuel consumption and make startin...

Страница 30: ...eated The hook of the torsion spring 9 must engage the slot arrow Secure the main filter and prefilter in position Fit the carburetor box cover General Information Your carburetor comes from the facto...

Страница 31: ...idle speed correctly chain must not rotate Starting from the standard setting use the high speed screw H to adjust the maximum engine speed with a tachometer to 12 500 rpm with bar and properly tensi...

Страница 32: ...spark plug Remove the spark plug see Starting Stopping the Engine Clean dirty spark plug Check electrode gap A and readjust if necessary see Specifications Rectify the problems which have caused fouli...

Страница 33: ...he screen is damaged or heavily carbonized fit a new one Take out the screws 3 Remove muffler upper casing 4 see Guide to Using this Manual Remove the screw 5 inside the upper casing Bend back the ret...

Страница 34: ...hed out of the grip Thread the new rope through the top of the starter grip and guide bushing 6 Pull the rope through the rotor and secure it with a simple overhand knot Coat rope rotor bearing bore w...

Страница 35: ...could break Take one turn of rope off the rotor in such a case Replacing a Broken Rewind Spring Remove the rope rotor Remove the spring housing and parts of the spring The bits of spring might still...

Страница 36: ...e the chain brake Pull hand guard toward the front handle Replacing the Chain Sprocket Replace the chain sprocket after using two Oilomatic chains Replace sooner if the wear marks on the sprocket are...

Страница 37: ...parts Install in the reverse sequence Clean the stub of the crankshaft and needle cage and lubricate with STlHL grease Special Accessories Push the needle cage spur sprocket and clutch drum with spur...

Страница 38: ...and in particular if the depth gauge is set too low there is a risk of increased kickback of the chainsaw with resulting risk of injury The chain pitch e g 3 8 is marked on the depth gauge end of eac...

Страница 39: ...or checking the filing and side plate angles depth gauge setting and cutter length It also cleans the guide bar groove and oil inlet holes File correctly Select sharpening tools according to chain pit...

Страница 40: ...an electric grinder Depth gauge setting The depth gauge determines the height at which the cutter enters the wood and thus the thickness of the chip removed Specified distance or setting between dept...

Страница 41: ...riod clean the chain and store it in a well oiled condition 689BA044 KN 689BA052 KN Sharpening Tools special accessories Chain pitch Round file Round file File holder Filing gauge Flat file1 Sharpenin...

Страница 42: ...ly every 12 months if problem if damaged as required Complete machine Visual inspection condition leaks X X Clean X Throttle trigger trigger interlock Master Control Check operation X X Chain brake Ch...

Страница 43: ...esin rich wood tropical wood etc shorten the specified intervals accordingly If you only use the saw occasionally extend the intervals accordingly before starting work after finishing work or daily af...

Страница 44: ...ey should be performed by an authorized STIHL servicing dealer If these operations are not carried out as specified the user assumes responsibility for any damage that may occur Among other things thi...

Страница 45: ...omatic saw chain Serial number 12 Oil tank filler cap 13 Muffler with spark arresting screens 14 Front hand guard 15 Front handle handlebar 16 Starter grip 17 Fuel tank filler cap 18 Master Control le...

Страница 46: ...k gauge 1 6 mm Chain sprockets 7 and 8 tooth 3 8 rim sprocket 7 tooth 3 8 spur sprocket Chain lubrication Fully automatic speed controlled rotary piston oil pump Additional manual oil flow control Fil...

Страница 47: ...Guide bar part number Chain part number The user of this unit should carry out only the maintenance operations described in this manual Other repair work may be performed only by an authorized STIHL d...

Страница 48: ...Product Licensing The CE type examination was carried out by Deutsche Pr fstelle f r Land und Forsttechnik DPLF Postfach 41 03 56 34114 Kassel Certification number K EG 2003 3756 Waiblingen September...

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