Stihl MS 290 STIHL FARM BOSS Product Instruction Manual - Page 34

Winter Operation

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139BA001 KN Winter Operation English / USA Chain brake maintenance The chain brake is subject to normal wear. It is necessary to have it serviced 1 and maintained regularly by trained personnel, such as your STIHL servicing dealer, at the following intervals: 139BA016 KN Full-time professional users: Semi-professional users (in agriculture and construction): Hobby and occasional users: every 3 months every 6 months every 12 months At temperatures below +10 °C (50°F): : Turn the twist lock above the rear 2 handle counterclockwise - slot vertical. : Lift off the carburetor box cover to the rear. : Pull prefilter (1) upward and out. : Pull off the spark plug boot (2). 139BA002 KN MS 290, MS 310, MS 390 33

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33
MS 290, MS 310, MS 390
English / USA
Chain brake maintenance
The chain brake is subject to normal
wear. It is necessary to have it serviced
and maintained regularly by trained
personnel, such as your STIHL servicing
dealer, at the following intervals:
At temperatures below
+10 °C (50°F):
:
Turn the twist lock above the rear
handle counterclockwise –
slot vertical.
:
Lift off the carburetor box cover to
the rear.
:
Pull prefilter
(1)
upward and out.
:
Pull off the spark plug boot
(2)
.
Full-time professional
users:
every 3
months
Semi-professional
users (in agriculture
and construction):
every 6
months
Hobby and
occasional users:
every 12
months
Winter Operation
139BA016 KN
1
139BA001 KN
139BA002 KN
2