Stihl MS 661 C-M Instruction Manual

0458-759-8221-C
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English 18 After Finishing Work
17.4 Summer Operation
The shutter must be set to summer mode when working at
temperatures above 50 °F (10°C).
► Shut off the engine, @ 15.1.
► Engage the chain brake, @ 12.1.
► Remove the filter cover (1).
► Pull out the shutter (2).
► Re-insert the shutter (2) as shown above.
► Push the shutter (2) into the slots (3) until it stops.
The shutter (2) engages noticeably.
► Mount the filter cover (1).
18.1 Preparing for Transportation or Storage
WARNING
To reduce the risk of personal injury from unintended
activation or unauthorized use, shut off the engine and
engage the chain brake before transporting the chain saw or
putting it down. To reduce the risk of injuries from the sharp
cutters on the chain, always cover the guide bar with the
chain scabbard before transporting or storing the saw.
To prepare the saw for transportation or storage:
► Shut off the engine, @ 15.
► Release the chain brake and loosen the chain, @ 12.2.
► Re-engage the chain brake.
► Slide a chain scabbard over the guide bar so that it covers
the entire guide bar.
► Before using the saw, remember to re-tension the chain.
NOTICE
The chain contracts as it cools down. Failing to loosen the
chain after finishing work can damage the drive shaft and
bearings.
0000-GXX-A381-A0
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0000-GXX-A384-A0
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18 After Finishing Work

Stihl MS 661 C-M Specifications

General

Idle speed	- RPM
Motor type	2-stroke motor
Chain pitch	3/8 \
Blade length	800 mm
Product color	Black, Grey, Orange
Automatic oiling	Yes
Engine displacement	91.1 cm³
Power source	Gasoline
Sound power level	118 dB
Vibration emission	6.9 m/s²
Sound pressure level	105 dB

Weight and Dimensions

Weight	7400 g