Stihl MS 270 User Manual

Online version - not for reprint
30 MS 270, MS 280
Check operation of the brake with
the bar and chain mounted.
When starting the machine observe
country-specific safety regulations
and the safety precautions in the
owner’s manual.
– With the engine running, open
the throttle wide.
– Release the rear handle.
The chain must come to a standstill
in less than one second.
If the brake does not operate
properly, service the sliding and
bearing points shown in the
illustrations as follows:
 Lubricate bearing points (arrows)
of interlock and switch levers with
Mobilplex grease – see 14.
VA
148RA047
 Lubricate brake lever bearing
points (1) with grease – see 14.
 Coat outside diameter of clutch
drum (2) with chain oil – see 14.
If lightly contaminated:
VA
148RA048
1
1
2
2
– Clean all parts with a brush and
STIHL cleaner – see 14.
If heavily contaminated or
clogged with resin:
– Remove the parts concerned and
clean in STIHL cleaner – see 14.
– Replace worn or damaged parts.
– Before re-installing parts, clean
machine recesses and seats with
STIHL cleaner – see 14.
If a biological chain oil is preferred,
STIHL recommends the use of
rapidly biodegradable STIHL
Bioplus.
To guarantee troublefree operation,
use only original STIHL replace-
ment parts as per the latest parts
list.
Removing
The anchor pin (1) must be replaced
if it is worn or damaged:
– Remove the fan cover
– see 8.2.
VA
146RA194
1
– Remove the chain brake spring
– see 5.4.2 or see 5.5.1.
– Remove the shroud – see 6.4.
 Use a suitable punch to drive the
anchor pin (1) out of the
crankcase in the direction of the
arrow.
Do not drive out the pin in the other
direction as this would damage the
annular bead which was formed in
the crankcase bore when the pin
was originally installed. In such a
case neither the new anchor pin nor
the brake spring would locate
properly. Furthermore, the
crankcase could be damaged in this
way and possibly impair correct
operation of the chain brake.
5.5.6 Checking Operation of
Coasting Brake
5.6 Brake Spring Anchor Pin

Stihl MS 270 Specifications

General

Brand	Stihl
Model	MS 270
Category	Chainsaw
Language	English