Download
Share
Print this page
Stihl MS 780 Manual
  1. Manuals
  2. Brands
  3. Stihl Manuals
  4. Chainsaw
  5. MS 780
  6. Manual

Stihl MS 780 Manual

Hide thumbs Also See for MS 780:

Advertisement

Quick Links

Download this manual
STIH)
STIHL MS 780, 880
2009-08

Advertisement

loading
Need help?

Need help?

Do you have a question about the MS 780 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Stihl MS 780

Summary of Contents for Stihl MS 780

  • Page 1 STIH) STIHL MS 780, 880 2009-08...
  • Page 2 – Version with cable 13.3 Removing and Installing channel the Oil Pump 9.6.4 Ground Wire 13.3.1 Spur Gear – Removing 9.6.5 Contact Spring and Installing Ignition System 13.4 Valve Troubleshooting © ANDREAS STIHL AG & Co. KG, 2009 MS 780, MS 880...

  • Page 3: Table Of Contents

    – Removing and Installing 14.7.4 Impulse Hose 14.8 Tank Vent 14.8.1 Testing 14.8.2 Removing and Installing 14.9 Fuel Intake 14.9.1 Pickup Body 14.9.2 Fuel Hose 14.9.3 Tank Housing – Removing and Installing Special Servicing Tools Servicing Aids MS 780, MS 880...
  • Page 4 Use the part numbers to identify the tools in the You should make use of the "STIHL Special Tools" manual. The illustrated parts lists while carrying manual lists all special servicing out repair work. They show the...
  • Page 5 Always use original STIHL replacement parts. They can be identified by the STIHL part number, the { logo and the STIHL parts symbol K This symbol may appear alone on small parts.
  • Page 6 Do not smoke or bring any fire, Install new fuel hoses either dry or flame or other source of heat near with the aid of STIHL press fluid, the fuel. All work with fuel must be b 16. performed outdoors only. Spilled...

  • Page 7: Fuel System

    14.0...36.0 (+/- 5.0) cm /min Ematic position 21.0 (+/- 3.0) cm /min Special accessory Oil delivery rate: at 10,000 rpm Oil pump with increased 50.0 (+/- 5.0) cm /min delivery rate: (oil delivery rate is not adjustable) MS 780, MS 880...
  • Page 8 Screw M 4x12 Exhaust cover/muffler Screw M 4x12 Brake band/crankcase 1), 4) Screw M 6x30 Collar stud/crankcase, for muffler (MS 780/ 12.0 new MS 880) Screw M 10x27 Collar stud / crankcase, for bar 30.0 Screw M 4x12 Cover, chain brake/crankcase...
  • Page 9 Muffler/collar stud with spring washer (MS 10.0 780/new MS 880) Screw M 5x16 Muffler/cylinder (MS 780/new MS 880) 10.0 1), 4), 5) Screw M 5x6 Muffler casing, top (MS 780/new MS 880) 1), 4) Crankshaft M 10x1 Flywheel/crankshaft 45.0 Screw M 4x12 Segment/fan housing Screw...
  • Page 10 Replace the clutch springs Loud noises Clutch springs stretched or fatigued Replace all clutch springs Needle cage damaged Fit new needle cage Clutch shoe retainer broken Install new retainer or clutch Clutch shoes and carrier worn Install new clutch MS 780, MS 880...
  • Page 11 Saw chain does not stop Brake spring stretched or broken Fit new brake spring immediately when brake is activated Brake band stretched or worn Fit new brake band Clutch drum worn Install new clutch drum MS 780, MS 880...
  • Page 12 Oil pump worn Install new oil pump Oil pump delivery rate set too low Adjust oil pump (only on version with adjustable oil pump) Pickup body in oil tank clogged Clean the pickup body or replace if necessary. MS 780, MS 880...
  • Page 13 (spring degreasant (containing no windings stick together) chlorinated or halogenated hydrocarbons), then pull rope carefully several times until normal action is restored Decompression valve is not open Open, check and replace decompression valve if necessary MS 780, MS 880...
  • Page 14 Faulty insulation or break in ignition lead or short circuit wire. Check ignition lead/ignition module and replace ignition module if necessary. Check operation of spark plug. Clean the spark plug or replace if necessary. Crankcase damaged (cracks) Install new crankcase MS 780, MS 880...
  • Page 15 Faulty insulation or short in short Check short circuit wire for short circuit wire circuit to ground Break in ignition lead or insulation Check ignition lead and replace if damaged necessary Ignition module faulty Install new ignition module MS 780, MS 880...

  • Page 16: Metering Diaphragm

    Fit a new metering diaphragm shrunk Impulse hose damaged or kinked Install new impulse hose Tank vent faulty Replace tank vent Leak on fuel hose from tank to Seal connections or install new fuel carburetor hose MS 780, MS 880...
  • Page 17 Seal connections or install new fuel carburetor hose Saw chain rotates at idle speed Engine idle speed too high Reset low speed screw L correctly Clutch does not release even Check the clutch though idle speed is correct MS 780, MS 880...

  • Page 18: Pump Diaphragm

    Fit new pump diaphragm fatigued Impulse hose damaged or kinked Install new impulse hose Ignition timing wrong, flywheel out Fit key if necessary and secure of adjustment, key in flywheel has flywheel properly or install new sheared off flywheel MS 780, MS 880...
  • Page 19 Close, check and replace decompression valve if necessary Engine overheating Insufficient cylinder cooling. Air Thoroughly clean all cooling air inlets in fan housing blocked or openings and the cylinder fins cooling fins on cylinder very dirty MS 780, MS 880...
  • Page 20 5 Chain Catcher / Spiked Bumper on Chain Sprocket Cover : Take out the screw (1). : Remove the inner side plate (2). : Remove the E-clip (arrow). – Pull off the roller (1). MS 780, MS 880...
  • Page 21   BUY NOW  Then Instant Download  the Complete Manual  Thank you very much! ...

This manual is also suitable for:

Ms 880