11MS 290, MS 310, MS 390
English / USA
!Warning!
Inhalation of certain dusts, especially 
organic dusts such as mold or pollen, 
can cause susceptible persons to have 
an allergic or asthmatic reaction. 
Substantial or repeated inhalation of 
dust and other airborne contaminants, in 
particular those with a smaller particle 
size, may cause respiratory or other 
illnesses. This includes wood dust, 
especially from hardwoods, but also 
from some softwoods such as Western 
Red Cedar. Control dust at the source 
where possible. Use good work 
practices, such as always cutting with a 
properly sharpened chain (which 
produces wood chips rather than fine 
dust) and operating the unit so that the 
wind or operating process directs any 
dust raised by the power tool away from 
the operator. Follow the 
recommendations of EPA/OSHA/
NIOSH and occupational and trade 
associations with respect to dust 
(“particulate matter”). When the 
inhalation of dust cannot be substantially 
controlled, i.e., kept at or near the 
ambient (background) level, the 
operator and any bystanders should 
wear a respirator approved by NIOSH/
MSHA for the type of dust encountered.
!Warning!
Breathing asbestos dust is dangerous 
and can cause severe or fatal injury, 
respiratory illness or cancer. The use 
and disposal of asbestos-containing 
products have been strictly regulated by 
OSHA and the Environmental Protection 
Agency. If you have any reason to 
believe that you might be cutting 
asbestos, immediately contact your 
employer or a local OSHA 
representative.
Operating instructions
!Warning!
Do not operate your power tool using the 
starting throttle lock, as you do not have 
control of the engine speed.
In the event of an emergency, switch off 
the engine immediately – move the slide 
control / stop switch to 0 or STOP.
!Warning!
Always stop the engine before putting a 
chainsaw down.
!Warning!
The saw chain continues to move for a 
short period after the throttle trigger is 
released (flywheel effect).
Accelerating the engine while the saw 
chain is blocked increases the load and 
will cause the clutch to slip continuously. 
This may occur if the throttle is 
depressed for more than a few seconds 
when the chain is pinched in the cut or 
the chain brake is engaged. It can result 
in overheating and damage to important 
components (e.g. clutch, polymer 
housing components) – which can then 
increase the risk of injury, e.g., from the 
saw chain moving while the engine is 
idling.
! Warning!
Your chainsaw is equipped with a chain 
catcher. It is designed to reduce the risk 
of personal injury in the event of a 
thrown or broken chain. From time to 
time, the catcher may be damaged or 
removed. To reduce the risk of personal 
injury, do not operate a chainsaw with a 
damaged or missing chain catcher.