CLEANING THE SPARK ARREST-
ING SCREEN
WARNING:
Wear protective gloves
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
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:
1.
Loosen and remove the nut from the ex-
haust outlet cover.
2.
3.
Remove the exhaust oulet cover.
Removespark arrestingscreen.Handle
screen carefully to prevent damage.
Clean the spark arresting screen gently
with a wire brush. Replace screen if
breaks are found.
S Reduction in size of wood chips. The size
ofthewoodchipwilldecreaseas thechain
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.
Tools required:
S 5/32 inch (4 mm) diameter round file and
file holder
S Flat file
S Depth gauge tool
4.
5.
6.
Replace any broken or cracked muffler
parts.
Reinstall spark arresting screen, exhaust
outlet cover,and nut.Tighten nutsecurely.
REPLACE SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better. Ignition timing is fixed and non-
adjustable.
TO SHARPEN CHAIN:
1.
Move ON/STOP switch to the STOP
position.
NOTE: This spark ignition system complies
with the Canadian standard ICES--002.
2.
Check chain for proper tension. Adjust
chain tension if necessary. See CHAIN
TENSION section.
1.
2.
3.
4.
Loosen 3 screws on cylinder cover.
Remove the cylinder cover.
Pull off the spark plug boot.
Remove spark plug from cylinder and
discard.
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.
5.
Replace with Champion RCJ--7Y spark
plug and tighten securely with a 3/ inch
4
(19
mm) socket wrench. Spark pluggap
should be 0.025 inch (0,6 mm).
Reinstall the spark plug boot.
6.
7.
File Holder
Reinstall
screws. Tighten securely.
the
cylinder
cover
and 3
File
90˚
Cylinder
Cover
Cutter
Depth Gauge
S
Align the 30˚ file holder marks paral-
lelwiththebar andtothecenter ofthe
chain.
Spark
Plug Boot
Cutter
3
0˚
Cutter
File Holder Line
Spark
Plug
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.
Fileontheforward strokeonly. Use2
or 3 strokes per cutting edge.
Keep all cutters the same length
when filing.
REPLACE FUEL FILTER
S
S
S
To replace fuel filter, drain your unit by run-
ning it dry of fuel. Remove fuel cap and its
connected retainer from tank. Pull filter from
tank and remove from line. Replace and re-
assemble.
File enough to remove any damage
to cutting edges (side plate and top
plate of cutter).
CHAIN ADJUSTMENT
SeeCHAIN TENSION in ASSEMBLY section.
CHAIN SHARPENING
All Cutters
Remove Damage
Same Length
WARNING:
Improper chain sharp-
ening techniques and/or depth gauge mainte-
nance will increase the chance of kickback
which can result in serious injury.
Top Plate
Side Plate
16
| Categories | Chainsaw Manuals, McCulloch Chainsaw Manuals |
|---|---|
| Tags | McCulloch 966625301, McCulloch MC4218AV |
| Model Year | 2005, 2006, 2007, 2008, 2009, 2010 |
| Download File |
|
| Language | English |
| Product Brand | McCulloch. Support Phone for US: Wheeled (Mowers, Tractors, Tillers, Snow Throwers) - 1-800-849-1297
McCulloch Handheld (Chainsaws, Trimmers, Blowers, Edgers) - 1-800-554-6723 All McCulloch Products - 1-800-521-8559, Chainsaw |
| Document File Type | |
| Publisher | mcculloch.com |
| Wikipedia's Page | McCulloch Motors |
| Copyright | Attribution Non-commercial |
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