Stihl MS 720 Instruction Manual
  1. Manuals
  2. Brands
  3. Stihl Manuals
  4. Chainsaw
  5. MS 720
  6. Instruction manual

Stihl MS 720 Instruction Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

{
STIHL MS 720
Instruction Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MS 720 and is the answer not in the manual?

Questions and answers

Gedion
June 17, 2025

To start my saw, I pull my ms 720 stihl but it won't start...why? So, what are few things I need to check through with for faults?

0

Related Manuals for Stihl MS 720

Summary of Contents for Stihl MS 720

  • Page 1 STIHL MS 720 Instruction Manual...

  • Page 3: Table Of Contents

    English Contents Dear Customer, Guide to Using this Manual Disposal Safety Precautions Thank you for choosing a quality engineered STIHL product. Reactive Forces It has been built using modern Working Techniques production techniques and Cutting Attachment comprehensive quality assurance. Mounting the Bar and Chain...
  • Page 4 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, injury. STIHL excludes all liability for and animals away from the work area. personal injury and damage to property The user is responsible for avoiding...
  • Page 6 (bayonet-type) in chain scabbard. This avoids the risk of have been approved by STIHL for this position, turn as far as the saw chain starting unintentionally. machine. If you have any questions in stop and fold the cliplock this respect, consult a servicing dealer.
  • 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 720...
  • 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 720...

  • 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 720...
  • 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 720...
  • 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 720...
  • 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 720...
  • Page 15 Make cuts at both sides of Leave a broader hinge on rotten the trunk at same height as bottom of – trees. MS 720...
  • 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 720...
  • 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 720...
  • 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 720...

  • 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 720...

  • Page 21: Mounting The Bar And Chain

    Fit chain around the sprocket (5) and over the guide bar – cutting edges on top of bar must point to bar nose. Turn the screw (1) counterclockwise until the tensioning nut (2) butts against the left end of the housing slot. MS 720...

  • Page 22: Tensioning The Saw Chain (Front Chain Tensioner)

    STIHL MotoMix Switch off the engine. Retensioning during cutting work: Wear work gloves to protect your Switch off the engine. 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: Fueling

    Engine Oil can quickly make the fuel mix unusable. If you mix the fuel yourself, use only STIHL MotoMix may be stored for up to STIHL two-stroke engine oil or another 2 years without any problems. high-performance engine oil in...

  • Page 24: Chain Lubricant

    Changing the Fuel Pickup Body 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 difficult to remove, especially in the area of the chain drive and chain.

  • Page 25: Checking Chain Lubrication

    Take care not to spill chain oil while Checking Chain Lubrication Starting / Stopping the refilling and do not overfill the tank. Engine STIHL recommends you use the STIHL filler nozzle for chain oil (special Starting the Engine accessory). Close the filler cap.
  • Page 26 This is the starting handle – your thumb should be properly. throttle position. under the handle. Put your right foot into the rear handle and press down. MS 720...
  • Page 27 Move the choke lever away from the Switch off the engine. "Choke" position – even if the engine is cold. Set the throttle trigger to the starting Move the stop switch to "STOP". throttle position. Now start the engine. MS 720...

  • Page 28: Operating Instructions

    Retension if necessary – see Wait for the engine to cool down. To "Tensioning the Saw Chain". avoid condensation, fill the fuel tank and keep the machine in a dry place, well away from sources of ignition, until you need it again. MS 720...

  • Page 29: Oil Quantity Control

    Chain type Chain pitch Minimum rate to approximately what is required groove depth for the next guide bar length. Picco 1/4“ P 4.0 mm Tighten down the locknut. Rapid 1/4“ 4.0 mm Fit the air filter and filter cover. MS 720...

  • Page 30: Cleaning The Air Filter

    Remove the filter. Knock out the filter. If filter is caked with dirt, wash the parts of the filter in STIHL special cleaner or a clean, non-flammable solution (e.g. warm soapy water) and then dry.

  • Page 31: Adjusting The Carburetor

    Setting the idle speed Whenever the low speed adjusting screw (L) has been adjusted, it is usually Make standard setting also necessary to readjust the idle speed adjusting screw (LA). Start engine and let it warm up MS 720...

  • Page 32: Spark Plug

    WARNING Run the engine until the carburetor type approved by STIHL – see is dry – this helps prevent the "Specifications". Arcing may occur if the adapter nut (1) is carburetor diaphragms sticking loose or missing.

  • Page 33: Checking And Replacing The Chain Sprocket

    Remove the rear washer, chain sprocket and needle cage. Clean the crankshaft stub. Clean the needle cage and lubricate it with STIHL grease. Screw the locking screw into the cylinder as far as stop. Installing the chain sprocket Fit the needle cage and new chain sprocket.

  • Page 34: Maintaining And Sharpening The Saw Chain

    The chain pitch marking (a) is embossed Sharpening angle increased vibration load, unsatisfactory in the area of the depth gauge of each STIHL saw chains are sharpened with a cutting results and increased wear. cutter. 30° sharpening angle. Ripping chains, Clean the saw chain which are sharpened with a 10°...
  • Page 35 – rest the Required distance between depth file holder on the tooth head and the gauge and cutting edge STIHL filing gauge (special accessory, depth gauge see table "Sharpening tools") – a When cutting softwood outside of the...
  • Page 36 (with service mark) is lowered at the same time as the depth gauge of the cutter. WARNING The rest of the humped drive link must not be filed; otherwise, this could increase the tendency of the chain saw to kick back. MS 720...
  • Page 37 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 720...

  • Page 38: 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 720...
  • Page 39 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 720...

  • Page 40: 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 41: Main Parts

    13 Oilmatic saw chain 14 Muffler 15 Front handle (handlebar) 16 Starter grip 17 Carburetor adjusting screws 18 Choke lever 19 Fuel filler cap 20 Throttle trigger 21 Lock button 22 Throttle trigger interlock 23 Rear handle Serial number MS 720...

  • Page 42: Specifications

    Fully automatic, speed-controlled oil and does not represent either an explicit pump with reciprocating piston – or implied guarantee of the performance additional manual oil flow control of a specific engine. Oil tank capacity 0.53 l MS 720...

  • Page 43: Guide To Using This Manual 2 Disposal

    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 44 0458-549-0121-A englisch www.stihl.com *04585490121A* 0458-549-0121-A...

Table of Contents