Spark Plug; Tools Required - McCulloch CS 330 Manual De Instrucciones

File Rail Edges
and Sides
Square
Worn Groove
Replace guide bar when the groove is worn, the
guide bar is bent or cracked, or when excess
heating or burring of the rails occurs. If replace-
ment is necessary, use only the guide bar spe-
cified for your saw in the repair parts list or on
the decal located on the chain saw.

SPARK PLUG

The spark plug should be replaced each year to
ensure the engine starts easier and runs better.
Ignition timing is fixed and nonadjustable.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder and dis-
card.
5. Replace with Husqvarna HQT-1 spark plug
and tighten securely with a 19 mm socket
wrench. Spark plug gap should be 0,5 mm.
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3 screws.
Tighten securely.
Spark Plug
Boot
Spark
Plug
CHAIN SHARPENING
WARNING:
ing techniques and/or depth gauge mainte-
nance will increase the chance of kickback
which can result in serious injury.
WARNING:
when handling chain. The chain is sharp and
can cut you even when it is not moving.
Conditions which indicate the need for chain
sharpening:
S Reduction in size of wood chips. The size of
the wood chip will decrease as the chain gets
duller until it becomes more like a powder
than a chip. Note that dead or rotted wood
will not produce a good chip.
S Saw cuts to one side or at an angle.
S Saw has to be forced through the cut.
SERVICE AND ADJUSTMENTS
Correct Groove
Cylinder
Cover
Improper chain sharpen-
Wear protective gloves

Tools required:

S 5/32 inch (4 mm) diameter round file and file
holder
S Flat file
S Depth gauge tool
TO SHARPEN CHAIN:
1. Move ON/STOP switch to the STOP posi-
tion.
2. Check chain for proper tension. Adjust
chain tension if necessary.
3. Sharpen cutters.
S To sharpen the cutters, position the file
holder level (90°) so that it rests on the
top edges of the cutter and depth
gauge.
NOTE:
The chain has both left and
right hand cutters.
File Holder
File
Cutter
Depth Gauge
S Align the 30° file holder marks parallel
with the bar and to the center of the
chain.
30°
File Holder Line
S Sharpen cutters on one side of the
chain first. File from the inside of each
cutter to the outside. Then, turn the
chain saw around and repeat the pro-
cess for the other side of the chain.
S File on the forward stroke only. Use 2 or
3 strokes per cutting edge.
S Keep all cutters the same length when
filing.
S File enough to remove any damage to
cutting edges (side plate and top plate
of cutter).
All Cutters
Same Length
S File chain to meet the specifications as
shown.
30°
90°
Cutter
Cutter
Remove Damage
Top
Plate Side Plate
80°
60°