Hyundai HYC3816, HYC4618, HYC5620 Operator's Manual

OPERATOR’S MANUAL

* IMPORTANT SAFETY INSTRUCTIONS

HYC3816 - HYC4618 - HYC5620

Licensed by Hyundai Corporation, Korea

Hyundai Power Equipment

Your safety and the safety of others is very important.

We have provided important safety messages in this
manual and on the petrol engine. Please read these
messages carefully.

A safety message alerts you to potential hazards that
could hurt you or others. Each safety message is
preceded by a safety alert symbol, as following:

You CAN be KILLED or SERIOUSLY HURT if you
don’t follow instructions.

You CAN be HURT if you don’t follow instructions.

Your machine or other property could be damaged
if you don’t follow instructions.

Gives you helpful information.

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CONTENTS

0. Operation Notes 4

1. Parts Location 5

2. Machine Symbols 6

3. Safe Operation 9

4. Installing Guide Bar & Chain 14

5. Fuel & Chain Oil 17

6. Operation 19

7. Sawing 24

8. General Maintenance 28

9. Bar & Chain Maintenance 31

10. Storage 34

11. Environmental Disposal 35

12. Warranty 36

13. Troubleshooting 37

14. Specications 38

15. Declaration of Conformity 39

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4

0. OPERATION NOTES

Attention ! Read these notes before you start working with
the saw and keep them.
Read the instructions carefully. Familiarise with the control
elements so that you are able to safely operate the device. Always
keep these Operating Instructions together with the chain saw.
Attention! Risk of hearing defects.
Under normal operating conditions, this device can expose the
operator to a noise level of 80 dB(A) or more.
Attention: Noise protection ! Please observe the local regulations
when operating your device.

Intended / not intended use:

The chainsaw is used to saw trunks, square timbers and for cutting
branches, according to the available cutting length. Only materials
from wood may be worked on.
Sufcient personal protection equipment (PPE) is required according
to the operating instructions during the use. This product is designed
for use by a trained operator for cutting logs and felling trees. Damage
or injuries resulting from misuse are the responsibility of the operator,
no liability shall be taken by the supplier or manufacturer for misuse.
Only use saw chains and guide bars recommended in the operating
instructions for this model. Operators of this machine, must read this
operators manual and be fully trained and familiar with this chainsaw
and think over all the possible dangers. Any modications to the
machine will void the manufacturer’s warranty. This equipment is
designed for use in the home garden.

5

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1. PARTS LOCATION

1. Saw chain

2. Guide bar

3. Front hand guard

4. Starter handle

5. Air lter cover

6. Air lter lock nut

7. Choke knob

8. Throttle trigger lock-out

9. Rear handle

10. Throttle trigger

11. Engine switch

12. Fuel tank

13. Oil tank

14. Front handle

15. Guide bar scabbard

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6

2. MACHINE SYMBOLS

Read, understand and follow all warnings

Warning! Danger of kickback. Beware of chain saw
kickback and avoid contact with bar tip

NEVER use chain saw one-handed

Always use chain saw with both hands

Appropriate ear, eye, and head protection must be worn

Read operator’s instruction book before operating this
machine

Always wear safety and anti-vibration(AV) gloves when
operating the device

Always wear appropriate leg protection and safety and
slip-resistant boots when operating the device

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For safe and easy operation and maintenance, these symbols are
marked on the machine:

Oil - The ller cap to rell the chain oil
Located near the oil cap

Engine ON/OFF switch - Flipping the switch to the “O”
position, immediately stops the engine
Located on the left side of the rear handle

Operate the choke knob - Pull out the choke knob to
stop. Push in the choke knob when started.
Located at the right side of the rear handle

Fuel - use 40:1 unleaded petrol and 2-stroke oil
Located near the fuel cap

Adjust the oil pump
If you turn the oil adjuster with a
screwdriver to the “MAX” position,
the chain oil will ow more, and if you
turn to the “MIN” position, ow less
Located at the bottom of the power
unit

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8

The screw next to the “H” stamp is The High-speed
mixture adjustment screw.
The screw next to the “L” stamp is The Slow-speed
mixture adjustment screw.
The screw next to the “T” stamp is the idle speed
adjustment screw.
Located on the upper-left of the rear handle

Shows the directions that the chain brake is released
(white arrow) and activated (black arrow).
Located on the front of the chain cover.

Shows the direction of the saw chain
installation.
Located on the front of the chain cover.

Guaranteed maximum sound power level

Engine pull recoil start

9

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3. SAFE OPERATION

Before you operate this chainsaw:

Before using our products, please read this manual
carefully to understand the proper use of your
chainsaw.

Never operate a chainsaw when you are tired, ill,
upset, or under the inuence of medication that may
make you drowsy, or if you are under the inuence of
alcohol or drugs.

Operate the chainsaw only in well ventilated areas.
Never start or run the engine inside a closed room or
building or a poorly ventilated area. Exhaust fumes
contain dangerous carbon monoxide which can kill.

Never use in high wind, bad weather, when visibility
is poor or in very high or low temperatures. Always
check the tree for dead branches which could fall
during the felling operation.

Use safety and slip-resistant footwear, protective
trousers, snug tting clothing and eye, hearing and
head protection devices. Use the anti-vibration(AV)
glove. It is believed that a condition called Raynaud’s
phenomenon, which affects the ngers of certain
individuals may be brought about by exposure to
vibration and cold. Loss of color and numbness in
the ngers. The following precautions are strongly
recommended because the minimum exposure which
might trigger the ailment is unknown.

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10

Keep your body warm, especially your head, neck, feet, ankles, hands
and wrists.
Maintain good blood circulation by performing vigorous arm exercises
during frequent work breaks. Keep the saw chain sharp and the saw,
including the AV (Anti-Vibration) system, well maintained. A blunt chain
will increase cutting time, and pressing a blunt chain through wood will
increase the vibrations transmitted to your hands. A saw with loose
components or with damaged or worn AV buffers will also tend to
have higher vibration levels. Limit the hours of operation.
All the above mentioned precautions do not guarantee that you will
not sustain white nger disease or carpal tunnel syndrome. Therefore,
continual and regular users should monitor closely the condition of
their hands ngers.
If any of the above symptoms appear, seek medical advice
immediately.

Always use caution when handling fuel. Wipe up all
spills and then move the chain saw at least 3 metres
from the fueling point before starting the engine.

Eliminate all sources of sparks or ame (e.g. smoking,
open ames, or work that can cause sparks) in the
areas where fuel is mixed, poured, or stored.
Do not smoke while handling fuel or while operating the
chain saw.

Do not allow other persons to be near the chain saw
when starting the engine or cutting a wood. Keep
bystanders and animals out of the work area. Children,
pets, and bystanders should be a minimum of 10
metres away when you start or operate the chain saw.

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Never start cutting until you have a clear work area,
secure footing, and planned retreat path from the falling
tree.

Always hold the chainsaw rmly with both hands when
the engine is running. Use a rm grip with thumb and
ngers gripping the chain saw handles.

Keep all parts of your body away from the saw chain
when the engine is running. Before you start the engine,
make sure the saw chain is not contacting anything.

Always carry the chain saw with the engine stopped,
the guide bar and saw chain to the rear, and the mufer
away from your body.

Always inspect the chain saw before each use for
worn, loose, or changed parts. Never operate a chain
saw that is damaged, improperly adjusted, or is not
completely and securely assembled. Be sure that the
saw chain stops moving when the throttle control
trigger is released.

All chainsaw service, other than the items listed in the
Operator’s Manual, should be performed by competent
chainsaw service personnel. (e.g., if improper tools are
used to remove the ywheel, or if an improper tool is
used to hold the ywheel in order to remove the clutch,
structural damage to the ywheel could occur which
could subsequently cause the ywheel to disintegrate).

Always shut off the engine before setting it down.

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12

Use extreme caution when cutting small size brush
and saplings because slender material may catch the
saw chain and be whipped toward you or pull you off
balance.

When cutting a branch that is under tension, be alert
for spring back so that you will not be struck when the
tension in the wood bers is released.

Keep the handles dry, clean and free of oil or fuel
mixture.

Guard against kickback. Kickback is the upward motion
of the guide bar which occurs when the saw chain at
the nose of the guide bar contacts an object. Kickback
can lead to dangerous loss of control of the chain saw.

When transporting your chain saw, make sure the
appropriate guide bar cover is in place. Securely place
the machine during transport to prevent loss of fuel,
damage or injury.

Kickback may occur when the nose or tip of the guide bar touches
an object, or when the wood closes in and pinches the saw chain
in the cut. Tip contact in some cases may cause a lightning fast
reverse reaction, kicking the guide bar up and back towards the
operator. Pinching the saw chain along the top of the guide bar
may push the guide bar rapidly back towards the operator. Either
of these reactions may cause you to lose control of the saw which
could result in serious personal injury.