Husqvarna Chainsaw 335XPT User Manual

335XPT  
California  
Operator's manual (EPA)  
Read these instructions carefully and make sure  
you understand them before using the saw.  
101 91 92-95  
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KEY TO SYMBOLS  
Symbols  
CAUTION! Chain saws can be dangerous!  
Switch off the engine by moving the stop  
switch to the STOP position before  
carrying out any checks or maintenance.  
Careless or incorrect use can result in  
serious or fatal injury to the operator or  
others.  
Please read the instructions carefully and  
make sure you understand them before  
using the saw.  
Operating position  
Always wear:  
• Approved protective helmet  
• Approved hearing protection  
• Protective glasses or visor  
Choke  
Always wear approved protective gloves.  
Regular cleaning is required.  
Visual check.  
Both of the operator´s hands must be used  
to operate the chain saw.  
Never operate a chain saw holding it with  
one hand only.  
Contact of the guide bar tip with any object  
should be avoided.  
Protective glasses or a visor must be  
worn.  
Tip contact may cause the guide bar to  
move suddenly upward and backward,  
which may cause serious injury.  
Refuelling  
Chain oil and chain oil flow adjustment  
2– English  
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CONTENTS  
Before using a new saw  
Contents  
Read the instructions carefully.  
Check cutting equipment is correctly fitted and adjusted. See  
page 25.  
Key to symbols......................................................... 2  
Safety instructions  
Personal protective equipment ................................. 4  
Refuel and start the saw. Check the carburetor settings.  
See pages 26-29.  
Do not use the saw until sufficient chain oil has reached the  
chain, see page 14.  
Chain saw safety equipment...................................... 4  
Inspecting, maintaining and servicing chain saw  
IMPORTANT! If the carburetor mixture is too lean it greatly  
increases the risk of engine failure.  
Poor maintenance of the air filter will cause carbon build-up on  
the spark plug and lead to difficult starting.  
If the chain is badly adjusted it will cause increased wear or  
damage to the bar, drive sprocket and chain.  
safety equipment ................................................................. 8  
Cutting equipment ......................................................... 10  
How to avoid kickback................................................. 16  
General safety precautions....................................... 18  
General working instructions.................................... 19  
WARNING!  
Under no circumstances may the design of  
the machine be modified without the permis-  
sion of the manufacturer. Always use genuine  
spare parts/accessories. Non-authorized  
modifications and/or accessories can result  
in serious personal injury or the death of the  
operator or others.  
What is what?  
What is what? .................................................................... 24  
Assembly  
Mounting guide bar and chain ........................................... 25  
Fuel handling  
Your warranty does not cover damage or  
liability caused by the use of non-authorized  
accessories or replacement parts.  
Fuelmix .............................................................................. 26  
Fuelling .............................................................................. 27  
Start and stop  
Start and stop .................................................................... 28  
A chain saw is a dangerous tool if used  
carelessly or incorrectly and can cause  
serious, even fatal injuries. It is very important  
that you read and understand these  
instructions.  
Maintenance  
Carburetor ......................................................................... 29  
Starter device .................................................................... 30  
Air filter .............................................................................. 31  
Spark plug ......................................................................... 31  
Muffler................................................................................ 31  
Adjustment of the oil pump ................................................ 32  
Cooling system .................................................................. 32  
Daily maintenance ............................................................. 32  
Weekly maintenance ......................................................... 33  
Monthly maintenance ........................................................ 33  
You will find the following  
labels on your chain saw:  
Technical Data  
335XPT ............................................................................. 34  
Emission Control Warranty Statement  
Your warranty rights and obligations ................................. 35  
English 3  
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SAFETY INSTRUCTIONS  
PERSONAL PROTECTIVE EQUIPMENT CHAIN SAW SAFETY EQUIPMENT  
This section explains the various safety features of the saw,  
how they work, and basic inspection and maintenance you  
should carry out to ensure safe operation. (See the ”What is  
what?” section to find out where these components are on Your  
saw).  
MOST CHAIN SAW ACCIDENTS HAPPEN  
WHEN THE CHAIN TOUCHES THE OPERA-  
TOR. You must wear approved protective  
equipment whenever you use a chain saw.  
Personal protective equipment cannot  
eliminate the risk of injury but it will reduce  
the degree of injury if an accident does  
happen. Ask your chain saw dealer for help in  
choosing the right equipment.  
NEVER USE A CHAIN SAW THAT HAS  
FAULTY SAFETY EQUIPMENT! Carry out the  
inspection, maintenance and service routines  
listed in this section.  
PROTECTIVE HELMET  
HEARING PROTECTION  
PROTECTIVE GLASSES  
OR VISOR  
Chain brake and front hand  
guard  
GLOVES WITH  
SAW PROTECTION  
Throttle lock  
PROTECTIVE TROUSERS  
WITH SAW PROTECTION  
Chain catcher  
Vibration damping system  
BOOTS WITH SAW  
PROTECTION, STEEL  
TOE-CAP AND NON-SLIP  
SOLE  
Stop switch  
Generally clothes should be  
close-fitting without restricting  
your freedom of movement.  
ALWAYS HAVE A FIRST  
AID KIT NEARBY  
Muffler  
Cutting equipment (see  
”Cutting equipment”  
section).  
4English  
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SAFETY INSTRUCTIONS  
2
The front hand guard is  
not designed solely to  
1 Chain brake and front hand guard  
YOUR chain saw is equipped with a chain brake that is desig-  
ned to stop the chain immediately if you get a kickback.  
The chain brake reduces the risk of accidents, but only You can  
prevent them.  
activate the chain brake.  
Another important safety  
feature is that it prevents  
the chain from hitting your  
left hand if you lose your  
grip on the front handle.  
Take care when using your  
saw and make sure the  
kickback zone of the bar  
never touches any object.  
3
You can also use the  
chain brake as a  
temporary brake when you  
change position or if you  
put the saw down for a  
short time. You should  
also apply the chain brake  
manually if there is a risk  
of the chain accidentally  
hitting anyone or anything  
close by.  
1
The chain brake (A) can  
either be activated  
manually (by your left  
hand) or automatically by  
the inertia release  
mechanism (a free-  
swinging pendulum). On  
most of our models the  
front hand guard acts as a  
counterweight in case of  
kickback.  
B
A
B
The brake is applied  
when the front hand  
guard (B) is pushed  
forwards.  
4
To release the chain brake  
pull the front hand guard  
backwards, towards the  
front handle.  
B
This movement activates  
a spring-loaded  
mechanism that tightens  
the Brake Band (C)  
around the engine drive  
system (D) (Clutch Drum).  
5
As mentioned in section A,  
kickback can be very  
sudden and violent.  
Most kickbacks are  
minor and do not always  
activate the chain brake.  
If this happens you  
should hold the chain  
saw firmly and not let  
go.  
C
D
English 5  
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SAFETY INSTRUCTIONS  
6
The way the chain brake is triggered, either manually or  
2 Throttle lock  
automatically, depends on the force of the kickback and the  
position of the chain saw in relation to the object that the  
kickback zone of the bar strikes.  
The throttle lock is designed  
to prevent accidental opera-  
tion of the throttle control.  
When you press the lock (A)  
(i.e. when you grasp the  
handle) it releases the throttle  
trigger (B).  
A
If you get a violent  
kickback while the  
kickback zone of the bar  
is farthest away from you  
the chain brake will be  
activated by the  
movement of the  
counterweight (INERTIA  
ACTIVATED).  
When you release the handle  
the throttle trigger and the  
throttle lock both move back  
to their original positions. This  
movement is controlled by two  
independent return springs.  
This arrangement means that  
the throttle control is  
B
automatically locked at the  
idle setting when you release  
the handle.  
3 Chain catcher  
The chain catcher is designed  
to catch the chain if it snaps or  
jumps off. This should not  
happen if the chain is properly  
tensioned (see section on  
”Assembly”) and if the bar and  
chain are properly serviced  
and maintained.  
(See section on ”General  
working instructions”).  
If the kickback is less  
violent or the kickback  
zone of the bar is closer  
to you the chain brake will  
be activated manually by  
the movement of your left  
hand.  
7
During felling your left  
hand grasps the front  
handle in such a way that  
it cannot activate the front  
hand guard. In this  
position the chain brake  
can only be activated by  
the inertia action of the  
counterweight.  
The inertia activated  
chain brake increases  
your safety but there are  
certain factors to  
remember (see point 6  
above).  
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SAFETY INSTRUCTIONS  
4 Vibration damping system  
5 Stop switch  
Your chain saw is equipped  
with a vibration damping  
system that is designed to  
minimise vibrations in the  
handles and make operation  
easier.  
Use the stop switch to switch  
off the engine.  
When you use a chain saw  
vibrations are generated by  
the uneven contact between  
the chain and the wood you  
are cutting.  
Cutting hardwoods (most  
broadleaf trees) creates more  
vibration than cutting  
softwoods (most conifers).  
Cutting with a chain that is  
blunt or faulty (wrong type or  
badly sharpened, see page  
11-14) will increase the  
vibration level.  
6 Muffler  
The muffler is designed to keep noise levels to a minimum and  
to direct exhaust fumes away from the user.  
The exhaust fumes from the engine are hot  
and may contain sparks which can start a fire.  
Never start the saw indoors or near  
combustible material!  
The vibration damping system  
reduces the vibrations  
transmitted from the engine  
and chain to the handles of  
the chain saw. The body of  
the saw, including the cutting  
equipment, is insulated from  
the handles by vibration  
damping units.  
In countries with a hot climate  
there is a high risk of forest  
fires. The chain saw is  
therefore fitted with a SPARK  
ARRESTOR MESH.  
With this type of muffler it is  
very important that you follow  
the instructions on checking,  
maintaining and servicing your  
saw (see the section on  
”Inspecting, maintaining and  
servicing chain saw safety  
equipment”).  
Overexposure to vibration can lead to  
circulatory damage or nerve damage in people  
who have impaired circulation.  
Contact your doctor if you experience  
symptoms of overexposure to vibration.  
These symptoms include numbness, loss of  
feeling, tingling, pricking, pain, loss of  
strength, changes in skin colour or condition.  
These symptoms normally appear in the  
fingers, hands or wrists.  
The muffler gets very hot in use and remains  
so for a short time afterwards. DO NOT  
TOUCH THE MUFFLER IF IT IS HOT!  
English 7  
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SAFETY INSTRUCTIONS  
3
Checking the brake trigger  
Inspecting, maintaining and servicing  
chain saw safety equipment  
WARNING!  
NEVER start the chain saw without activating  
the chain brake first!  
SPECIAL TRAINING IS REQUIRED to service  
and repair chain saws. This is especially true  
of chain saw safety equipment. If your chain  
saw fails any of the checks described below  
take it to your SERVICE AGENT.  
When you buy any of our products we  
guarantee the availability of professional  
repairs and service. If the retailer who sells  
your saw is not a SERVICING DEALER, ask  
him for the address of your nearest SERVICE  
AGENT.  
Place the chain saw on  
firm ground and start it.  
Make sure the chain does  
not touch the ground or  
any other object.  
Grasp the saw firmly,  
wrapping your fingers and  
thumbs around the  
handles.  
1 Chain brake and front hand guard  
1
Checking brake band wear  
Brush off any sawdust,  
resin and dirt from the  
chain brake and clutch  
drum. Dirt and wear can  
impair operation of the  
brake.  
Apply full throttle and  
activate the chain brake  
by tilting your wrist  
forward onto the front  
hand guard. Do not let go  
of the front handle.  
The chain should stop  
immediately.  
Regularly check that the  
brake band is at least 0.6  
mm thick at its thinnest  
point.  
2
Checking the front hand guard  
A) Make sure the  
FRONT HAND GUARD  
is not damaged and  
that there are no visible  
defects such as  
cracks.  
B) Move the front hand  
guard forwards and  
back to make sure it  
runs freely and that it is  
securely anchored to  
the clutch cover.  
8English  
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