EarthQuake CS4518B - Manual (Page 19)

Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 19
Operator's Manual
CS4518B CHAINSAW
BAR AND CHAIN OIL
The saw is equipped with an adjustable chain oiler. The oil
pump, driven by the drive sprocket, will only pump oil when
the engine is running at high enough speeds to engage the
clutch and rotate the chain. Furthermore, the flow of oil is
adjustable to accommodate variations in chain oil due to
temperature.
To adjust the oil pump, insert a screwdriver in the small notch
beneath the clutch and drive sprocket. To increase the flow of
oil, turn the screwdriver counter-clockwise. To decrease the
flow of oil, turn the screwdriver clockwise. For optimum per-
formance, use a higher rate of flow with thicker oil or in colder
temperatures, and a lower rate of flow with thinner oil or in
warmer temperatures.
The guide bar and saw chain need to be well lubricated dur-
ing operation to prevent permanent damage from friction
and heat. Be sure to check the oil supply to the bar and chain
before use.
1. After starting the engine, hold the saw up with the
chain suspended in front of or above a test surface.
2. Run the engine at about half throttle.
3. Oil should be flung off of the rotating chain onto the
test surface.
If the saw chain seems dry, but there is some oil present on the
bar or test surface, the oil pump may be set too low. Increase
the setting by turning the adjustment screw, located on the
under-side of the saw, counter-clockwise (SEE FIGURE 4). If
the saw chain and guide bar are dry and there is no oil on the
test surface, the oiler port and guide bar may need cleaning.
Remove the clutch cover, bar, and chain, and clean under the
clutch cover with a brush and clean the guide bar with a wire
or small screwdriver.
Reassemble and retest for oil presence. If no oil is present after
adjusting the oiler setting and cleaning the oiler port, the oil
pump may not be functioning. Discontinue use of the unit
and contact your local authorized service center or customer
service for assistance.
In compliance with EPA regulations, any adjustments to the
carburetor must be made by an authorized service center. An
authorized service center is capable of troubleshooting carbu-
retor problems, adjusting carburetors to perform correctly, and
adjusting carburetors to compensate for altitude.
NOTE: Carburetor is set at factory. Further adjustment
must be performed by an authorized service center.
Contact customer service for a list of authorized
service centers.
ENGINE MAINTENANCE
Cooling Fins
1. Cooling fins, air inlets, and linkages must be free from
any debris before each use.
Air Filter
1. Never run engine without air cleaner properly installed.
Added wear and engine failure may occur if air cleaner is
not installed on engine.
2. Service air cleaner every 3 months or after 20 hours
of operation. Clean filter daily in extremely dusty
conditions.
Steps for Cleaning Air Filter
1. Remove the air cleaner cover by turning the thumb
screw on top of the power unit counter-clockwise and
lifting the cover off.
2. To remove the filter, lift the filter element off of the
threaded stud.
3. Larger surface dust and dirt particles can be removed from
the filter element by lightly tapping a corner of the filter
against a hard surface.
4. To clean finer dust trapped in the mesh screens, split
the filter by inserting a flat screwdriver between the
dogs on one corner of the filter element and twisting.
5. Using an air compressor at a low pressure or a store-
bought compressed air duster, blow air through the
mesh from the inside.
6. Press the two filter halves back together by squeezing
around the rim. Do not place pressure on the mesh or a
puncture could occur.
7. Place the filter back over the threaded rod, making
sure to seat the filter on the O-ring on the carburetor.
8. Place the air cleaner cover back on the saw body and
turn the thumb screw clockwise until finger tight.