Instruction Manual
Table Of Contents
- STIHL MS 661 C-M
- 1 Introduction
- 2 Guide to Using this Manual
- 3 Overview
- 4 Safety Precautions
- 5 Preparing the Saw for Operation
- 6 Assembling the Saw
- 7 Engaging and Disengaging the Chain Brake
- 8 Mixing Fuel and Refueling the Chainsaw
- 9 Starting and Stopping the Engine
- 10 Checking the Saw
- 11 Operating the Saw
- 12 After Finishing Work
- 13 Transporting
- 14 Storing
- 15 Cleaning
- 16 Maintenance
- 17 Repairing
- 18 Troubleshooting
- 19 Specifications
- 20 Bar and Chain Combinations
- 21 Spare Parts and Accessories
- 22 Disposal
- 23 EC Declaration of Conformity

0000-GXX-2937-A0
► Pull the starter grip slowly with your right hand
until you feel it engage.
► Pull the starter grip 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 brake before you start
cutting.
► Disengage the chain brake.
Your saw is ready for operation.
► If the engine does not start: Move the Master
Control lever (3) to position
and try again to
start the engine.
9.2 Shut off the engine.
2
3
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1
► Release the throttle trigger (2) and lockout
lever (3).
The saw chain stops running.
► Move the Master Control lever (1) to posi‐
tion .
The engine stops and the Master Control lever
(1) springs back to position .
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.
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a
► 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.
10 Checking the Saw English
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