Jonsered RS44/52 Trimmer User Manual


 
26 English
MAINTENANCE
Air lter
The air lter must be regularly cleaned to remove dust and dirt
in order to avoid:
Carburettor malfunctions
Starting problems
Loss of engine power
Unnecessary wear to engine parts
Excessive fuel consumption.
Clean the lter every 25 hours, or more regularly if conditions
are exceptionally dusty.
Cleaning the air lter
Remove the air lter cover and take out the lter. Wash it
clean in warm, soapy water. Ensure that the lter is dry before
retting it.
An air lter that has been in use for a long time cannot be
cleaned completely. The lter must therefore be replaced with
a new one at regular intervals. A damaged air lter must
always be replaced.
Bevel gear
The bevel gear is lled with the right amount of grease at the
factory. However, before using the machine you should check
that the bevel gear is lled 3/4 full with grease. Use
JONSERED special grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
Spark plug
The spark plug condition is inuenced by:
Incorrect carburettor adjustment.
An incorrect fuel mixture (too much or incorrect type of
oil).
A dirty air lter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difculties.
If the machine is low on power, difcult to start or runs poorly
at idle speed: always check the spark plug rst before taking
any further action. If the spark plug is dirty, clean it and check
that the electrode gap is 0.5 mm (0,020"). The spark plug
should be replaced after about a month in operation or earlier
if necessary.
CAUTION! Always use the recommended spark plug type!
Use of the wrong spark plug can damage the piston/cylinder.
Sharpening grass cutters and grass
blades
See the cutting attachment packaging for correct
sharpening instructions.
Sharpen blades and cutters using a single-cut at le.
Sharpen all edges equally to maintain the balance of the
blade.
!
WARNING! Always stop the engine before
doing any work on the cutting attachment.
This continues to rotate even after the
throttle has been released. Ensure that the
cutting attachment has stopped completely
and disconnect the HT lead from the spark
plug before you start to work on it.
!
WARNING! Always discard a blade that is
bent, twisted, cracked, broken or damaged
in any other way. Never attempt to straighten
a twisted blade so that it can be reused. Only
use original blades of the specied type.