MAINTENANCE
Air filter
Muffler
The air filter must be regularly cleaned from dust and dirt in
order to avoid:
•
•
•
•
Carburettor malfunctions
Starting problems
Engine power reduction
Unnecessary wear on
the engine parts
254,
257
The muffler is designed in
order to reduce the noise level
and to direct the exhaust
gases away from the operator.
The exhaust gases are hot
and can contain sparks, which
may cause fire if directed
against dry and combustible
material. Some mufflers are
equipped with a special
screen. If your saw has this
type of muffler, you should
clean the screen at least once
a week. This is done with a
wire brush.
•
Abnormal fuel consumption
Clean the air filter daily or
more often if the air is
exceptionally dusty in the
working area.
•
Disassemble the air filter by
removing the cylinder cover
and unscrew the filter.
When reassembling, make
sure that the filter is tight
against the filter holder.
Clean the filter by brushing
or shaking it.
CAUTION! The screen must be replaced, if damaged. The saw
will be overheated, if the screen is clogged. This results in
damage on the cylinder and the piston. Never use a saw with a
clogged or defective muffler.
262
•
A more thorough cleaning of
the filter is obtained by
washing it in water and
soap.
Adjustment of the oil pump
An air filter, which is used for
some time, cannot be cleaned
completely. Therefore it must
be replaced by a new one,
with regular intervals.
IMPORTANT! A damaged air
filter must always be
replaced.
The oil pump is adjustable.
Adjustments are made by
turning the screw using a
screwdriver or combination
spanner. The saw is supplied
from the factory set to 1 turn
open. Turning the screw
clockwise will reduce the oil
flow and turning the screw
anti-clockwise will increase
the oil flow.
!
WARNING! The engine must not be running
when making adjustments.
Spark plug
Recommended settings:
Bar 11"-15": 0-2 turns from the closed position.
Bar 15"-18": 2-3 turns from the closed position.
0,5
mm
The spark plug condition is
influenced by:
•
•
•
An incorrect carburettor
setting.
Wrong fuel mixture (too
much oil in the gasoline).
A dirty air filter.
Needle bearing maintenance
A
These factors cause deposits
on the spark plug electrodes,
which may result in
The clutch drum is equipped
with one of the following chain
sprockets:
malfunction and starting
difficulties.
•
Spur sprocket (A) (the chain
sprocket is welded on the
drum)
If the engine is low on
power, difficult to start or
runs poorly at idling speed,
always check the spark plug
first. If the spark plug is dirty,
clean it and check the electrode gap. Readjust if necessary.
The correct gap is 0.5 mm (.020"). The spark plug should be
replaced after about a month in operation or earlier if the
electrodes are badly eroded.
• Rim sprocket (B)
(exchangeable)
Both versions have built-in
needle bearing at the drive
shaft, whitch has to be
greased regularly (once a
week).
B
IMPORTANT! Always use the recommended spark plug type.
An incorrect spark plug can severely damage the piston/
cylinder.
NOTE! Use only high quality
bearing grease.
English –
31
| Categories | Chainsaw Manuals, Husqvarna Chainsaw Manuals |
|---|---|
| Tags | Husqvarna 254XP, Husqvarna 257, Husqvarna 262XP |
| Model Year | 1998 |
| Download File |
|
| Document Type | Operator's Manual |
| Language | English |
| Product Brand | Husqvarna, Chainsaw |
| Document File Type | |
| Publisher | husqvarna.com |
| Wikipedia's Page | Husqvarna |
| Copyright | Attribution Non-commercial |
(1 votes, average: 5 out of 5)
Lawn and Garden readers have rated Husqvarna 254XP 257 262XP Chainsaw Owners Manual 5.0 out of 5.0 based on 1 product reviews. awssome!!!! excelllent