User manual
Table Of Contents
- Symbols on the machine:
- Symbols in the operator’s manual:
- Contents
- Dear customer!
- Before using a new chain saw
- Important
- Always use common sense
- Personal protective equipment
- Machine¢s safety equipment
- Chain brake and front hand guard
- Will my hand always activate the chain brake during a kickback?
- Will my inertia activated chain brake always activate during kickback in the event of a kickback?
- Will my chain brake always protect me from injury in the event of a kickback?
- Throttle lockout
- Chain catcher
- Vibration damping system
- Stop switch
- Muffler
- Cutting equipment
- Fitting the bar and chain
- Fuel
- Fueling
- Fuel safety
- Starting and stopping
- Before use:
- General working instructions
- How to avoid kickback
- Carburetor
- Checking, maintaining and servicing chain saw safety equipment
- Muffler
- Starter
- Air filter
- Spark plug
- Lubricating the bar tip sprocket
- Adjustment of the oil pump
- Cooling system
- Maintenance schedule
- Technical data
- Bar and chain combinations, model 334T
- Bar and chain combinations, model 338XPT
- Saw chain filing and file gauges
- YOUR WARRANTY RIGHTS AND OBLIGATIONS
- MANUFACTURER¢S WARRANTY COVERAGE
- OWNER¢S WARRANTY RESPONSIBILITIES
- WARRANTY COMMENCEMENT DATE
- LENGTH OF COVERAGE
- WHAT IS COVERED
- EMISSION WARRANTY PARTS LIST
- WHAT IS NOT COVERED
- HOW TO FILE A CLAIM
- WHERE TO GET WARRANTY SERVICE
- MAINTENANCE, REPLACEMENT AND REPAIR OF EMISSION-RELATED PARTS
- MAINTENANCE STATEMENT
- Safety precautions for chain saw users
![](/manual/husqvarna/chainsaw-1153158-95/user-manual-english/images/img-35.png)
MAINTENANCE
English – 35
Spark plug
The spark plug condition is influenced by:
• Incorrect carburetor adjustment.
• An incorrect fuel mixture (too much or incorrect type
of oil).
• A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
If the machine is low on power, difficult to start or runs
poorly at idle speed: always check the spark plug first
before taking any further action. If the spark plug is dirty,
clean it and check that the electrode gap is 0.020 inch (0.5
mm). The spark plug should be replaced after about a
month in operation or earlier if necessary.
Note! Always use the recommended spark plug type! Use
of the wrong spark plug can damage the piston/cylinder.
Check that the spark plug is fitted with a suppressor.
Lubricating the bar tip sprocket
Lubricate the bar tip sprocket each time you refuel. Use
the special grease gun and a good quality bearing grease.
Adjustment of the oil pump
The oil pump is adjustable. Adjustments are made by
turning the screw using a screwdriver or combination
spanner. The machine is supplied from the factory with
the screw set to middle position. Turning the screw
clockwise will reduce the oil flow and turning the screw
anti-clockwise will increase the oil flow.
Recommended settings:
Less oil with short bar and/or soft wood.
More oil with longer bar and/or hard wood.
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1 Air intake on the starter.
2 Air guide plate.
3 Fins on the flywheel.
4 Cooling fins on the cylinder.
5 Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
Note! The cooling system on a chain saw with catalytic
converter must be cleaned daily. This is particularly
important on chain saws with catalytic converters,
because the higher exhaust temperature requires
efficient cooling of the engine and the catalytic converter
unit.
!
WARNING! The engine must be stopped
when making adjustments.
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