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ModelMS 311 / MS 391

STIHL MS 391 Chainsaw instruction manual

The official instruction manual for the STIHL MS 391 Chainsaw, published by STIHL. Read all 40 pages right here, jump to any chapter, or download and print the PDF.

40 pages · 2.5 MB English Published by STIHL Added Sep 16, 2026
Instruction manual
ModelMS 311 / MS 391

01 MS 311 / MS 391 instruction manual

STIHL MS 391 Chainsaw Instruction manual
40 pages · 100%
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02 Contents

Chapters from the PDF. Select one to open that page in the viewer.

  1. 01STIHL MS 311, 391 p.1
  2. 021 Introduction p.2
  3. 032 Guide to Using this Manual p.2
  4. 043 Safety Precautions p.3
  5. 054 Reactive Forces p.7
  6. 065 Working Techniques p.8
  7. 076 Cutting Attachment p.15
  8. 087 Mounting the Bar and Chain p.15
  9. 098 Tensioning the Chain p.16
  10. 109 Checking Chain Tension p.17
  11. 1110 Fuel p.17
  12. 1211 Fueling p.18
  13. 1312 Chain Lubricant p.20
  14. 1413 Filling Chain Oil Tank p.20
  15. 1514 Checking Chain Lubrication p.21
  16. 1615 Chain Brake p.21
  17. 1716 Winter Operation p.22
  18. 1817 Starting / Stopping the Engine p.23
  19. 1918 Operating Instructions p.25
  20. 2019 Oil Quantity Control p.26
  21. 2120 Taking Care of the Guide Bar p.26
  22. 2221 Cleaning the Air Filter p.27
  23. 2322 Adjusting the Carburetor p.27
  24. 2423 Spark Plug p.28
  25. 2524 Storing the Machine p.29
  26. 2625 Checking and Replacing the Chain Sprocket p.29
  27. 2726 Maintaining and Sharpening the Saw Chain p.30
  28. 2827 Maintenance and Care p.34
  29. 2928 Minimize Wear and Avoid Damage p.35
  30. 3029 Main Parts p.36
  31. 3130 Specifications p.37
  32. 3231 Ordering Spare Parts p.38
  33. 3332 Maintenance and Repairs p.38
  34. 3433 Disposal p.38
  35. 3534 EC Declaration of Conformity p.38
  36. 3635 UKCA Declaration of Conformity p.39
  37. 3736 Addresses p.39

03 Document details

BrandSTIHL
ModelMS 311 / MS 391
Document typeInstruction manual
CategoryLawn & Garden
Pages40
File size2.5 MB
LanguageEnglish
Title in the PDFSTIHL MS 311, 391
Original sourcessc.stihl.com

04 Check you have the right manual

Walk-behind mowers carry a label on the rear of the deck. Riding mowers put it under the seat. Handheld tools print it on the housing.

Compare the model number on your product's label with the model list on the first pages of the PDF. Letters at the end often only mean color or region.

05 Common jobs

Is this the official STIHL MS 391 Chainsaw manual?

Yes. This is the instruction manual published by STIHL, originally hosted at ssc.stihl.com. We host a copy so you can read, download and print it here.

Can I download the MS 311 / MS 391 manual as a PDF?

Yes. Use the Download PDF button in the viewer or the sidebar. The file is 2.5 MB and has 40 pages.

Where is the model number on my lawn & garden?

Walk-behind mowers carry a label on the rear of the deck. Riding mowers put it under the seat. Handheld tools print it on the housing.