McCulloch M4218 Chainsaw User Manual


 
8
5. Return adjustm ent knob handle to original
position. Ensure teeth of adjustment knob
handle are engaged with notches in the
chain brake and adjustment knob handle
is laying flat.
Teeth
Notches
CHAIN TENSION (Including units
with chain already installed)
WARNING: Wea r protective gloves
whenhandlingchain. Thechainissharpand
can cut you even w hen itis not moving.
Itis normalfor anewchaintostretchduringthe
first 15 minutes o f operation. Y ou should re-
check your chain t ension f requently andadjust
the chain tension as required. Always check
chain tension each time you use and refuel
yoursaworwhenany s aginthechain isnoted.
1. MoveON/STOPswitchtotheSTOP
position.
2. Make sure chain brake is disengaged
(seeCHAINBRAKEintheOPERATION
section).
IMPORTANT: Before proceeding to next
step,ensureunitisonaflatsurfaceandinan
upright position as shown in il lustration.
Chainwillnottightenproperlyiftheunitisnot
in an upr ight position.
3. Use the chain adjustment tool (bar tool)
to move chain around guide bar to en-
surekinksdonotexist.Thechainshould
rotatefreely.
Guide
Bar
Adjustment K nob
CH
A
IN S
A
W IN UPRIGHT POSITION
Chain Adjustm ent
Tool (Bar Tool)
4. Lift adjustment knob handle and turn
counterclockwise 1 turn to loosen bar.
Chain will tighten automatically.
NOTE: If chain brake detaches from saw,
see TO REPLACE CHAIN BRAKE section.
Adjustment
Knob
Handle
Tensioning Lever
LOOSEN
5. While lifting tip of guide bar, turn adjust-
ment knob handle clockwise to clamp
bar. Tightenuntilbarisclampedsecure-
ly. Hand tighten securely; do n otuse
tools to tighten!
6. Using chain adjustment tool (bar tool),
roll chain around guide bar to ensure all
links are inbar groove.
7. Return adjustm ent knob handle to original
position. Ensure teeth of adjustment knob
handle are engaged with notches in the
chain brake and adjustment knob handle
is laying flat.
WARNING: If the saw is operated
with a loose chain, the chain could jump of f
the guide bar andresult in serious injury.
WARNING:M ufflerisvery h otduring
andafter use. Donottouchthemuffleroral-
low combustible material such as dry grass
or fuel to doso.
OPERATING YOUR UNIT
BEFORE STARTING ENGINE
WARNING: Be sure to read the fuel
informationinthesafetyrulesbeforeyoube-
gin.Ifyoudonotunderstandthesafetyrules,
do not at tempt to fuel your unit. C ontact an
authorized service dealer.
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 ofoil willquickly ruin the bar and
chain. Too little oil will cause overheating
shownbysmokecomingfromthechainand/
or discoloration of thebar.
OnlyuseBarandChainOilforbarandchain
lubrication.