Stihl MS 181 User Manual

24 MS 171, MS 181, MS 211
7.3 Brake Lever
– Troubleshooting, b 4.2
– Remove the brake band, b 7.2
– Push the hand guard away from
the front hand to relax the brake
spring.
: Use the assembly tool (2)
1117 890 0900 to disconnect the
brake spring (1) from the anchor
pin (arrow) – the spring may pop
out during this operation.
– Disconnect the brake spring from
the brake lever.
: Take out the screw.
: Pry the hand guard (1) off the fan
housing (arrow).
– To ease assembly, remove the
rewind starter, b 10.2
533RA035 TG
1
2
533RA036 TG
1
: Remove the E-clip (arrow).
: Lift and turn the strap (1) a little,
then push it to the left as far as
the hole (arrow) and remove it.
– Remove the spacer sleeve from
the brake lever.
: Pull the hand guard (1) and brake
lever (2) off the pivot pins
(arrows) together.
– Remove the hand guard and
brake lever.
533RA037 TG533RA038 TG
1
533RA039 TG
1
2
: Pull the brake lever (2) out of the
hand guard (1).
– Inspect the brake lever and hand
guard and replace if necessary.
– Inspect the pivot pins and replace
if necessary, b 7.5
– Inspect the flat spring and
replace if necessary., b 7.4
– Clean all disassembled parts,
b 16
– Position the brake lever so that
the hook (arrow) for the brake
spring is at the top.
: Push the brake lever (1) into the
hand guard recess and line up
the holes.
533RA040 TG
1
2
533RA041 TG
1
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Stihl MS 181 Specifications

General

Idle speed	- RPM
Motor type	2-stroke motor
Chain pitch	3/8 \
Blade length	400 mm
Product color	Black, Grey, Orange
Chain tensioner	Yes
Motor speed (max)	10000 RPM
Fuel tank capacity	0.266 L
Engine displacement	31.8 cm³
Power source	Gasoline
Sound power level	112 dB
Vibration emission	3.5 m/s²
Sound pressure level	100 dB

Weight and Dimensions

Weight	43004300 g