THROTTLE LOCK--OUT
CHAIN BRAKE
The
THROTTLE
LOCK--OUT
must
be
The chain brake is a device designed to stop
the chain if kickback occurs. The chain brake
activates automatically in the event of kick-
back. Thechainbrakeactivatesmanually ifthe
front hand guard is pushed forward. The chain
brake is disengaged by pulling the front hand
guard back toward the front handle as far as
possible.
pressed before you can squeeze the throttle
trigger. This feature prevents you from acci-
dentally squeezing the trigger.
CHOKE/FAST IDLE LEVER
The choke and fast idle are set by pulling the
CHOKE/FAST IDLE LEVER out to the full ex-
tent for cold starting or after refueling. The
choke provides additional fuel to the engine
during cold starting.
CHAIN TENSION
Itisnormalforanew chaintostretchduring the
first15 minutes of operation.You shouldcheck
your chain tension each time before you start
the chain saw. See CHAIN TENSION under
the ASSEMBLY section.
PRIMER BULB
The PRIMER BULB circulates fuel to the car-
buretor to provide quicker starting.
FUEL REQUIREMENTS
WARNING:
If the saw is operated
This engine requires the use of minimum 87
octane [R+M]/2 clean gasoline.
with a loose chain, the chain could jump off
the guide bar and result in serious injury to
the operator and/or damage the chain mak-
ing it unusable.
IMPORTANT
Useof alcoholblended fuels (called gasoholor
using ethanol or methanol) can cause major
engine performance and durability problems.
BEFORE STARTING ENGINE
WARNING:
Muffler is very hot dur-
WARNING:
Alternative fuels (not
gasoline) such as E--15 (15% alcohol), E--20
alcohol), E--85 (85% alcohol) are NOT
ingandafter use. Donot touchthe muffler or
allow combustible material such as dry
grass or fuel to do so.
(20%
classified as gasoline and are NOT approved
for usein2--strokegasolineengines.Useofal-
ternativefuelswillcauseproblemssuchas:im-
proper clutch engagements, overheating, va-
por lock, power loss, lubrication deficiency,
deterioration of fuel lines, gaskets and internal
carburetor components, etc. Alternative fuels
cause high moisture absorption into the fuel/oil
mixture leading to oil and fuel separation.
WARNING: Besure toread thefuel
handling information in the safety rules sec-
tionofthismanualbeforeyoubegin.Ifyoudo
not understand the fuel handling information
do not attempt to fuel your unit. Seek help
from someone that does understand the in-
formation or call the customer assistance
help line at 1-800-554-6723.
BAR AND CHAIN LUBRICATION
The bar and chain require continuous lubri-
cation. Lubrication is provided by the auto-
matic oiler system when the oil tank is kept
filled. Lack of oil will quickly ruin the bar and
chain. Too little oil will cause overheating
shownby smokecomingfromthechainand/
or discoloration of the bar.
FUELING ENGINE
WARNING: Removefuel capslow-
ly when refueling.
HELPFUL TIP
Toobtain thecorrect oilmix
ratio, pour 3.2 ounces of
In freezing weather oil will thicken, making it
necessary to thin bar and chain oil with a
small amount (5 to 10%) of #1 Diesel Fuel or
kerosene. Bar and chain oil must be free
flowing for the oil system to pump enough oil
for adequate lubrication.
2--cycle
synthetic oil into
one gallon of fresh gas.
This engine is certified to operate on un-
leaded gasoline. Before operation, gasoline
must be mixed with a good quality synthetic
If bar and chain oil is not available, use a
good grade SAE 30 oil.
2-cycle
air-cooled engine oil designed to be
mixed at a ratio of 40:1. A 40:1 ratio is ob-
tainedbymixing3.2fluidounces (95ml) ofoil
with 1 gallon (4 liters) of unleaded gasoline.
Pour the entire contents of the3.2 ounce(95
ml) container of oil into 1 gallon (4 liters) of
gasoline to achieve the proper fuel mixture.
DO NOT USE automotive or marine oil.
Theseoils willcause enginedamage. When
mixing fuel follow the instructions printed on
the container. Once oil is added to gasoline,
shake container momentarily to assure that
the fuel is thoroughly mixed. Always read
and follow the safety rules relatingto fuelbe-
fore fueling your unit.
S Never usewasteoilfor bar andchainlubri-
cation.
S Always stop the engine before removing
the oil cap.
CHAIN BRAKE
Ensure chain brake is disengaged by pulling
thefronthandguardback towardthefronthan-
dleas faras possible.Thechainbrakemustbe
disengaged before cutting with the saw.
WARNING:
The chain must not
move when the engine runs at idle speed. If
the chain moves at idle speed refer to CAR-
CAUTION: Never use straight gasoline in
your unit. This will cause permanent engine
damage and void the limited warranty.
BURETOR
ADJUSTMENT
within
this
manual. Avoid contact with the muffler. A hot
muffler can cause serious burns.
9
| 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 |
(0 votes, average: 0 out of 5)