AIR FILTER
Dirty air filter reduces efficiency of combustion engine and causes
increase of fuel consumption. Clean the air filter after each 5 hours
of the saw operation.
• Clean the air filter lid (4) and its surroundings, so the dirt does not
get into carburettor chamber after the lid is removed.
• Unscrew knob for air filter lid (3) and remove air filter lid (4).
• Remove air filter (d) (fig. T).
• Use water with soap to clean the filter, wash with clean water and
dry thoroughly.
• Install air filter. Ensure the grooves on the air filter rim match
protrusions on the air filter lid (4).
• When installing the air filter lid (4) make sure to properly place ignition
plug wire and access sleeves for carburettor adjustment screws.
Do not wash the air filter in petrol or any other flammable solvent
to avoid fire hazard or appearance of dangerous vapours.
CYLINDER FINNING
Dust deposition on the cylinder finning may cause motor
overheating. Check regularly and clean the cylinder finning when
carrying out maintenance of the air filter.
GUIDE BAR AND CHAIN
Check condition of the guide bar and chain every 5 hours of the saw
operation.
• Set the ignition switch (14) to off position.
• Loosen and unscrew the guide bar fixing nuts (7).
• Remove the casing (10) and disassemble guide bar (20) and chain
(21).
• Clean oil holes and groove (e) in the guide bar (20) (fig. U).
• Lubricate tip chain wheel of the guide bar (22) through the hole (f)
located on the guide bar tip (fig. W).
• Check condition of the chain (21).
CHAIN SHARPENING
Pay attention to cutting tools. Cutting tools should be sharp and
clean, it allows efficient and safe operation. Operating the saw with
blunt chain causes quick wear of the chain, guide bar and driving
chain wheel, and breaking the chain in the worst case. That is why it
is important to sharpen the chain on time.
Chain sharpening is a complex operation. Sharpening the chain by
yourself requires use of special tools and skills. It is recommended to
entrust sharpening the chain to qualified persons.
FUEL FILTER
• Unscrew the fuel filler plug (15).
• Use wire hook to remove the fuel filter (g) through the fuel filler
hole (fig. X).
• Disassemble the fuel filter and wash it in petrol or replace with
a new one.
• Install the fuel filter in the tank.
• Tighten the fuel filler plug (15).
When the filter has been dismantled use the wire hook to hold up
the end of the suction line.
Be careful during fuel filter installation to prevent contamination
from getting into the suction line.
OIL FILTER
• Unscrew oil filler plug (18).
• Use wire hook to remove the oil filter (h) through the oil filler hole
(fig. Y).
• Wash the oil filter in petrol or replace with a new one.
• Remove dirt from the tank.
• Install the oil filter in the tank.
• Tighten oil filler plug (18).
When putting the oil filter into the tank make sure it reaches front
right corner.
IGNITION PLUG
To maintain reliable operation of the device, check condition of the
ignition plug on a regular basis.
• Remove air filter lid (4).
• Remove air filter (d).
• Remove wire (i) from the ignition plug.
• Put on plug key (included) and unscrew the ignition plug (fig. Z).
• Clean and adjust spacing between contacts (0.65 mm) (replace
ignition plug when necessary).
OTHER INSTRUCTIONS
Ensure there are no fuel leaks, loosened joints or damages of main
parts, especially main handle joints and guide bar fixing. When you
find any damage, make sure it is repaired before next use of the
chain saw.
All faults should be repaired by service workshop authorized by the
manufacturer.
TECHNICAL PARAMETERS
RATED PARAMETERS
Petrol Chain Saw
Rated parameter
Engine displacement
Guide bar working length
Engine power
Engine speed with cutting system
(maximum)
Idle rotational speed
Average fuel consumption
Fuel
Fuel tank capacity
Chain oil
Chain oil tank capacity
Carburettor
Ignition system
Ignition plug
Oil feed system
Chain wheel (teeth x pitch)
Type of guide bar
Type of chain
Chain pitch
Chain thickness
Dimensions (LxWxH) (w/o guide
bar)
Weight (w/o guide bar and chain)
Chain guiding in guide bar
Year of production
NOISE LEVEL AND VIBRATION PARAMETERS
Sound pressure: Lp
= 96 dB(A) K=3dB(A)
A
Sound power: Lw
= 109,2 dB(A) K=3dB(A)
A
Vibration acceleration a
:
h
-
front handle: a
= 8,5 m/s
h
19
Value
45 cm
3
360 mm
1,8 kW (2,45 KM)
10000 min
-1
2800±200 min
-1
0,85 l/h
Petrol / oil (for 2-stroke
engines) 25:1
580 ml
SAE10W-30
250 ml
WT819 Walbro
Spark
BM6A/Torch
Automated pump with
controller
7T x 8,255 mm
112364 91
21LPX072X Oregon
0,325" (8,255mm)
0,058" (1,47 mm)
390 x 230 x 280 mm
5,5 kg
Bearing mounted toothed
wheel
2020
K=1,5 m/s
2
2