MS 241 C-M
English
39
If groove depth is less than specified:
N Replace the guide bar.
The drive link tangs will otherwise 
scrape along the bottom of the groove – 
the cutters and tie straps will not ride on 
the bar rails.
Removing the shroud
N Move the Master Control lever to the 
stop position (0).
N Push the hand guard forward – the 
chain is locked.
N Open the twist locks (1) by turning 
them 1/4 turn counterclockwise with 
the combination wrench. 
N Remove the shroud (2).
Installing the shroud
N Place the shroud in position.
N Close the twist locks by turning 
them a 1/4 turn clockwise. 
If there is a noticeable loss of engine 
power
N Remove the shroud – see "Shroud"
Removing the air filter
N Clean away loose dirt from around 
the filter
NOTICE
Do not use tools to remove and install 
the air filter – the air filter could be 
damaged in the process.
N Turn air filter 1/4 turn 
counterclockwise and remove in the 
direction of the rear handle
N Always replace a damaged filter
Cleaning the air filter
N Knock out the filter or blow it clear 
with compressed air from the inside 
outwards
If knocking-out or blowing-out does not 
suffice, or in the case of stubborn dirt or 
stuck filter fabric, the filter must be 
subjected to a thorough cleaning.
Chain 
type
Chain pitch Minimum 
groove depth
Picco 1/4" P 0.16" (4.0 mm)
Rapid 1/4" 0.16" (4.0 mm)
Picco 3/8" P 0.20" (5.0 mm)
Rapid 3/8"; 0.325" 0.24" (6.0 mm)
Rapid 0.404" 0.28" (7.0 mm)
Shroud