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 Wood chips are small and powdery
 Chain must be forced through the wood during cutting
 Chain cuts to one side
During maintenance of the chain, consider the following:
 Improper filing angle of the side plate can increase the
risk of a severe kickback.
 Depth gauge (or raker clearance) setting determines the
height the cutter enters the wood and the size of the wood
chip that is removed. Too much clearance increases the
potential for kickback. Too little clearance decreases the
size of the wood chip thus decreasing the chain's cutting
ability.
 If cutter teeth have hit hard objects such as nails and
stones, or have been abraded by mud or sand on the
wood, have service dealer sharpen chain.
HOW TO SHARPEN THE CUTTERS
See Figures 24 - 27.
Be careful to file all cutters to the specified angles and to
the same length, as fast cutting can be obtained only when
all cutters are uniform.
 Tighten the chain tension enough that the chain does not
wobble. Do all of your filing at the mid-point of the bar.
Wear gloves for protection.
 Use a 5/32 in. diameter round file and holder.
 Keep the file level with the top plate of the tooth. Do not
let the file dip or rock.
 Using light but firm pressure, stroke towards the front
corner of the tooth. Lift file away from the steel on each
return stroke.
 Put a few firm strokes on every tooth. File all left hand
cutters in one direction. Then move to the other side
and file the right hand cutters in the opposite direction.
Occasionally remove filings from the file with a wire
brush.
CAUTION:
Dull or improperly sharpened chain can cause excessive
engine speed during cutting which may result in severe
engine damage.
WARNING:
Improper chain sharpening increases the potential of
kickback. Failure to replace or repair damaged chain can
cause serious injury.
CLEANING THE EXHAUST PORT AND
MUFFLER
Depending on the type of fuel used, the type and amount
of lubricant used, and/or your operating conditions, the
exhaust port and muffler may become blocked with carbon
MAINTENANCE
deposits. If you notice a power loss with your gas powered
tool, a qualified service technician will need to remove these
deposits to restore performance.

SPARK ARRESTOR

The spark arrestor must be replaced every 50 hours or yearly
to ensure proper performance of the product. Spark arres-
tors may be in different locations depending on the model
purchased. Please contact the nearest service dealer for the
location of the spark arrestor for your model.
CLEANING AIR FILTER SCREEN
See Figure 28-29.
For proper performance and long life, keep air filter clean.
 Remove the air filter cover by pushing down on the latch
with your thumb while gently pulling on the cover.
 Brush the air filter screen lightly to clean.
 Replace the air filter cover by inserting the tabs on the
bottom of the cover into the slots on the air filter base;
push the cover up until it latches securely in place.
NOTE: For best performance, replace annually.
FUEL CAP
WARNING:
A leaking fuel cap is a fire hazard and must be replaced
immediately.
The fuel cap contains a non-serviceable filter and a check
valve. A clogged fuel filter will cause poor engine perfor-
mance. If performance improves when the fuel cap is loos-
ened, check valve may be faulty or filter clogged. Replace
fuel cap if required.
SPARK PLUG REPLACEMENT
This engine uses a Champion RCJ6Y with .025 in. electrode
gap. Use an exact replacement and replace annually.
STORING THE PRODUCT
See Figure 30.
 Clean all foreign material from the product. Store idle unit
indoors in a dry, well-ventilated area that is inaccessible
to children. Keep away from corrosive agents such as
garden chemicals and de-icing salts.
 Abide by all ISO and local regulations for the safe storage
and handling of gasoline.
 Always place the scabbard on the saw bar when
transporting or storing the pruner. The scabbard is a snug
fit and must be attached very carefully due to the sharp
teeth on the saw chain. This is best done by grasping
the scabbard at one end, in the center portion of the
scabbard, and carefully sliding it over the chain as shown.
Use caution to avoid the sharp teeth of the chain.
NOTE: The saw chain is very sharp. Always wear protective
gloves when handling the chain.
12 — English

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