EarthQuake CS4518 User manual

OperatOr's Manual & parts
Chain Saw CS4518
GetEarthquake.com
OMCS4518
Rev12-23-09
© Copyright 2009 Ardisam, Inc.
All Rights Reserved. Printed in China.
WARNING
Before using our products, please read this manual carefully to understand the
proper use of your unit.

Page 3
SAFETY FIRST
Instructions contained in warnings within this manual marked with a
WARNING
symbol concern critical points which must be taken into consideration
to prevent possible serious bodily injury, and for this reason you are
requested to read all such instructions carefully and follow them with-
out fail.
WARNINGS IN THE MANUAL
WARNING
This mark indicates instructions which must be followed in order to prevent accidents
which could lead to serious bodily injury or death.
IMPORTANT
This mark indicates instructions which must be followed, or it leads to mechanical fail-
ure, breakdown, or damage.
NOTE
This mark indicates hints or directions useful in the use of the product.
Page
1. Parts location ............................................................................................. 4
2. Symbols on the machine............................................................................. 5
3. For safe operation...................................................................................... 8
4. Installing guide bar and saw chain............................................................ 13
5. Fuel and chain oil .................................................................................... 15
6. Operation .............................................................................................. 17
7. Sawing ................................................................................................... 23
8. Maintenance............................................................................................ 26
9. Maintenance of Saw Chain and Guide Bar ............................................... 28
10. Storage ................................................................................................... 31
11. Troubleshooting guide .............................................................................. 32
12. Specifications .......................................................................................... 33
13. Warranty ................................................................................................. 34
Contents
FEDERAL EMISSION INFORMATION
Ardisam, Inc. warrants to the retail purchaser, that this small, off-road engine was
designed, built and equipped to conform at the time of initial sale to all applicable
regulations of the U.S. Environmental Protection Agency (EPA).

Page 4
1. Front hand guard and brake
2. Starter handle
3. Air filter cover
4. Choke knob
5. Throttle trigger lock-out
6. Rear handle
7. Throttle trigger
8. Engine switch
9. Fuel tank cap
10. Oil tank cap
11. Front handle
12. Saw chain
13. Guide bar
14. Primer Bulb
Parts Location
12
3
4
5
6
78
9
10
11
13
12
14

Page 5
(1) Read operator's instruction book before operating this machine.
(2) Appropriate ear, eye, and head protection must be worn.
(3) Use the chain saw with two hands.
(4) Warning! Danger of kickback.
(5) Read, understand and follow all warnings.
Symbols on the Machine

Page 6
For safe operation and maintenance, symbols are carved in relief on the machine.
According to these indications, please be careful not to make any mistake.
(a). The port to refuel the oil/gas mixture.
Location: near the fuel cap
(b). The port to refill the chain oil
Location: near the oil cap
(c). Operate the engine switch
Flipping the switch to the "O" position immediately stops the engine.
Location: rear at the left side of the rear handle
(d). Operate the choke knob
Pull out the choke knob, and the choke closes; push in the choke
knob and the choke opens.
Location: rear at the right side of the rear handle.
(e). Adjust the oil pump
If you turn the rod by screwdriver follow the arrow to the "MAX"
position, the chain oil flows more, and if you turn to the "MIN"
position, less.
Location: Bottom of the power unit
Symbols on the Machine

Page 7
NOTE
Carb is set at factory.
Special tools are required for carb adjustment and can only be
performed by a qualified service center.
Severe engine damage or personal injury may occur if proper
procedures are not followed.
(g). Shows the directions that the chain brake is released (white arrow)
and activated (black arrow).
Position: Front of the chain cover
(h). Shows the direction of the saw chain installation.
Position: Front of the chain cover
Symbols on the Machine

Page 8
Before operating the product
1. Before using our products, please read this manual carefully to
understand the proper use of your chainsaw.
2. Never operate a chainsaw when you are fatigued, ill, or upset, or
under the influence of medication that may make you drowsy, or if
you are under the influence of alcohol or drugs.
3. Operate the chainsaw only in well ventilated areas.
Never start or run the engine inside a closed room or building.
Exhaust fumes contain dangerous carbon monoxide.
4. Never cut 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.
5. Use safety footwear, snug fitting clothing and eye, hearing and
head protection devices.
For Safe Operation

Page 9
6. Always use caution when handling fuel.
Wipe up all spills and then move the chain saw at least ten(10)feet
(three(3) m) from the fueling point before starting the engine.
7. Eliminate all sources of sparks or flame (ie. smoking, open flames,
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.
8. Do not allow other persons to be near the chain saw when starting
the engine or cutting wood. Keep bystanders and animals out of the
work area. Children, pets, and bystanders should be a minimum of
30 feet (10m) away when you start or operate the chain saw.
9. Never start cutting until you have a clear work area, secure footing,
and planned retreat path from the falling tree.
10. Always hold the chain saw firmly with both hands when the
engine is running. Use a firm grip with thumb and fingers encircling
the chain saw handles.
11. 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.
For Safe Operation

Page 10
12. Always carry the chain saw with the engine stopped, the guide bar
and saw chain to the rear, and the muffler away from your body.
13. 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.
14. All chain saw service, other than the items listed in the Operator’s
Manual, should be performed by an authorized repair center.
(e.g., if improper tools are used to remove the flywheel, or if an
improper tool is used to hold the flywheel in order to remove the
clutch, structural damage to the flywheel could occur which could
subsequently cause the flywheel to disintegrate).
15. Always shut off the engine before setting it down.
16. 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.
17. When cutting a limb that is under tension, be alert for spring back
so that you will not be struck when the tension in the wood fibers is
released.
18. Keep the handles dry, clean and free of oil or fuel mixture.
For Safe Operation

Page 11
19. 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.
KICKBACK SAFETY PRECAUTIONS FOR CHAIN SAW USERS
WARNING
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.
Do not rely exclusively on the safety devices built into your saw. As a chain saw user you
should take several steps to keep cutting jobs free from accident or injury.
(1) With a basic understanding of kickback you can reduce or eliminate the element of
surprise. Sudden surprise contributes to accidents.
For Safe Operation

Page 12
(2) Keep a good grip on the saw with both hands, the right hand on
the rear handle, and the left hand on the front handle, when the
engine is running. Use a firm grip with thumbs and fingers encircling
the chain saw handles. A firm grip will help you reduce kickback and
maintain control of the saw. Don’t let go.
(3) Make certain that the area in which you’re cutting is free from
obstructions. Do not let the nose of the guide bar contact a log,
branch, or any other obstruction which could be hit while you are
operating the saw.
(4) Cut at high engine speeds.
(5) Do not overreach or cut above shoulder height.
(6) Follow manufacturers sharpening and maintenance
instructions for saw chain.
(7) Only use replacement bars and chains specified by the
manufacturer or the equivalent.
For Safe Operation

Page 13
A standard saw unit package contains the items as shown below.
(1) Power unit
(2) Guide bar
(3) Saw chain
(4) Plug wrench
(5) Screwdriver for carburetor adjustment
Open the box and install the guide bar and the
saw chain on the power unit as follows.
WARNING
The saw chain has very sharp edges. Use protective gloves for safety.
1. Pull the guard towards the front handle to check that the chain
brake is not on.
2. Loosen a nut and remove the chain cover. Then, remove
bar spacer used for shipping (see photo A).
3. Wrap the chain to the sprocket and, while fitting the saw chain
around the guide bar, mount the guide bar to the power unit.
Adjust the position of chain tensioner nut.
(7) Hole
(8) Chain tensioner nut.
(9) Clutch cover
Installing Guide Bar / Chain
3
2
1
45
photo A:
bar spacer to remove

Page 14
NOTE
Pay attention to the correct direction of the saw chain.
1Moving direction
4. Mount the guide bar then fit the saw chain around the
bar and sprocket.
5. Fit the chain tensioner nut into the lower hole of the guide bar,
then install the chain cover, and fasten the mounting nut to
finger tightness.
6. While holding up the tip of the bar, adjust the chain tension by
turning the tensioner screw until the tie straps just touch the bottom
side of the bar rail.
7. Tighten the nuts securely with the bar tip held up 10 ft lbs (100-
130 inch lbs).
Then check the chain for smooth rotation and proper tension while
moving it by hand. If necessary, readjust with the chain cover loose.
8. Tighten the tensioner screw.
(1) Loosen
(2) Tighten
(3) Chain tension adjusting screw
IMPORTANT
It is very important to maintain the proper chain tension. Rapid wear of the guide bar or
the chain coming off easily can be caused by improper tension. Especially when using a
new chain, take good care of it since it should expand when first used.
Installing Guide Bar / Chain

Page 15
Fuel
The engines are lubricated by Viper Engine Oil specially formulated
for air-cooled 2-cycle gasoline engine use. If oil is not available, use
an antioxidant added quality oil expressly labeled for air-cooled
2-cycle chain saw engine use.
RECOMMENDED MIXING RATIO
GASOLINE 50 : OIL 1
These engines are certified to operate on unleaded gasoline.
See chart for mixing.
GAS OIL RATIO
1 gallon 2.6 ounces 50:1
2.5 gallons 6.4 ounces 50:1
WARNING
The fuel is highly flammable. Do not smoke or bring any flame or
sparks near fuel.
IMPORTANT
1. DO NOT USE FUEL WITHOUT AN OIL MIXTURE (RAW GASOLINE)
It will cause severe damage to the engine inner parts
very quickly and void warranty.
2. DO NOT USE OIL MEANT FOR 4-CYCLE ENGINE USE or WATER
COOLED 2-CYCLE ENGINE USE
It can cause spark plug fouling, exhaust port blocking, or piston ring
sticking and void warranty.
HOW TO MIX FUEL
1. Measure out the quantities of gasoline and oil to be mixed.
2. Put some of the gasoline into a clean, approved fuel container.
3. Pour in all of the oil and agitate well.
Fuel and Chain Oil

Page 16
4. Pour in the rest of gasoline and agitate again for at least
one minute.
5. Mark the container clearly on the outside of the container to avoid
mixing up with gasoline or other containers.
CHAIN OIL
Use special chainsaw oil all year round. Recommended for winter
or summer use.
NOTE
Do not use waste or regenerated oil that can cause
damage to the oil pump.
Fuel and Chain Oil

Page 17
Before you start the engine, make sure the saw chain is not
contacting anything.
STARTING ENGINE
1. Untwist and remove the fuel cap. Rest the cap on a dustless place..
2. Put fuel into the fuel tank to 80% of the full capacity.
3. Fasten the fuel cap securely and wipe up any fuel spillage
around the unit.
4. Put the switch to the "I" position.
5. Continuously push the priming bulb until fuel comes in the bulb.
(1) Oil
(2) Fuel
(3) Engine switch
(4) Choke knob
6. Pull out the choke knob. The choke will close and the throttle lever
will then be set in the starting position.
NOTE
When restarting immediately after stopping the engine.
Set choke in the open position
NOTE
Once the choke knob has been pulled out, it will not return to the
operating position fully even if you press down on it with your finger.
When you wish to return the choke knob to the fully open position,
squeeze the throttle lever instead.
7. While holding the saw unit securely on the ground, pull the
starter rope vigorously.
Operation
WARNING

Page 18
8. When firing occurs, push in the choke knob and pull the starter
again to start the engine.
9. Allow the engine to warm up with the throttle lever pulled slightly.
IMPORTANT
The oil tank should become nearly empty by the time fuel is used up.
Be sure to refill the oil tank every time when refueling the saw.
ADJUSTING CARBURETOR
The carburetor on your unit has been factory adjusted.
NOTE
Carb is set at factory.
Special tools are required for carb adjustment and can only be
performed by a qualified service center.
Severe engine damage or personal injury may occur if proper
procedures are not followed.
Operation

Page 19
CHAIN BRAKE
The chain brake is a device which stops the chain instantaneously if
the chain saw recoils due to kickback.
Normally, the brake is activated automatically by inertial force.
It can also be activated manually by pushing the brake lever
(Front handle guard) down toward the front.
When the brake operates, a white cone (5) pops up from the base of
the brake lever.
(1) Front handle (2) Release (3) Brake (4) Front handle guard
(5) White cone
Operation
(5)

Page 20
To release brake, pull up the front handle guard toward the front
handle till “click” sound is heard.
WARNING
When the brake operates, release the throttle lever to slow down the
engine speed. Continuous operation with the brake engaged will
generate heat from the clutch and may cause damage.
Be sure to confirm brake operation on the daily inspection.
How to confirm:
1) Turn off the engine.
2) Holding the chain saw horizontally, release your hand from the
front handle, hit the tip of the guide bar to a stump or a piece of
wood, and confirm brake operation. Operating level varies by
bar size.
In case the brake is not effective, contact our authorized service center.
Stopping engine
1. Release the throttle lever to allow the engine to idle for a
few minutes.
2. Move the switch lever downward.
(1) Engine switch
Operation