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Stihl MS 661 Instruction Manual

Stihl MS 661
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MS 661
English
41
Maintenance and Care
The following maintenance intervals apply to normal usage and operating conditions. If your daily
working time is longer or operating conditions are difficult (very dusty work area, resin-rich wood, trop-
ical wood, etc.), shorten the specified intervals accordingly. If you only use your power tool
occasionally, extend the intervals accordingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
Complete machine
Visual inspection (condition, leaks) XX
Clean X
Throttle trigger, trigger lockout, choke lever, stop
switch, Master Control lever (depending on
version)
Check operation XX
Chain brake
Check operation XX
Have checked by dealer
1)
X
Fuel pump (if fitted)
Check X
Have repaired by dealer
1)
X
Pickup body/filter in fuel tank
Check X
Clean, replace filter element XX
Replace XXX
Fuel tank Clean X
Chain oil tank Clean X
Chain Lubrication Check X
Chain
Inspect, also check sharpness XX
Check chain tension XX
Sharpen X
Guide bar
Check (wear, damage) X
Clean and turn over X
Deburr X
Replace XX
Chain sprocket Check X
Air filter
Clean XX
Replace X

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Stihl MS 661 Specifications

General IconGeneral
Displacement91.1 cc
Chain Pitch3/8"
Engine Power5.4 kW
Fuel Capacity825 ml
Chain Oil Capacity360 ml
Guide Bar Lengths90 cm

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