McCulloch 545079726 Chainsaw User Manual


 
12
LIMBING AND PRUNING
WARNING: Be alert for and guard
against kickback. Do not allow the moving
chain tocontact a ny other branched orobjects
at the nose of the guide bar when limbing or
pruning. A llowing such contact can result in
serious injury .
WARNING:Neverclimbintoatreeto
limb or prune. Do not stand on ladders, plat-
forms,alog,or inany positionwhich cancause
you to lose your balance or controlof thesaw .
IMPORTANT POINTS
S Watch out for springpoles. Use extreme
cautionwhencuttingsmallsize limbs. Slen-
dermaterialmay catchthe sawchainandbe
whipped toward you or pull you off balance.
S Be alert for springback. W atch out f or
branches that are bent or under pressure.
Avoidbeingstruck by th e branch or thesaw
when the tension in the wood fibers is re-
leased.
S Keep a clear work area. Frequently clear
branches out of the way to avoid tripping
over them.
LIMBING
S Alwayslimbatreeafteritis cutdown. Only
then can limbingbe donesafely andprop-
erly.
S Leave the larger limbs underneath the
felledtreetosupport the treeas youwork.
S Start atbaseof the felledtreeandwork to-
ward the top, cutting branches and lim bs.
Remove small limbs with one cut.
S Keep the tree between you and the chain
as much as possible.
S Remove larger, supporting branches with
thecuttingtechniquesdescribedinBUCK-
ING WITHOUT A SUPPORT.
S Always use an overcut to cut small and
freely hanging limbs. Undercutting could
cause limbs to fall and pinch saw .
PRUNING
WARNING: Limit pruning to limbs
shoulder height or below. Do not cut if
branches arehigher than yourshoulder.Get
a p rofessional to do the job.
S Make your fist cut
1/3 of the way through
the b ottom of the limb.
S Next makea2ndcutall the waythrough
thelimb. Then cut athird overcut leaving
a1to2inchcollarfromthetrunkofthetree.
First cut
Second cut
Third cut
Collar
Pruning technique
SERVICE AND ADJUSTMENTS
WARNING: Disconnect the spark
plugbeforeperformingmaintenance,except
for carburetor adjustments.
Werecommend all service and adjustments
not listed in this manual be performed by an
Authorized Service Dealer.
MAINTENANCE SCHEDULE
Check:
Fuel mixture level Before each use....
Bar lubrication Before each use.......
Chain tension Before each use.......
Chain sharpness Before each use....
For damaged parts Before each use..
For loose caps Before each use......
For loose fasteners Before each use...
Fo r loose parts Before each use......
Inspect and Clean:
Bar Before each use................
Complete saw After each use.......
Air filter Every 5 hours *.............
Chain brake Every 5 hours*........
Spark arresting screen
and muffler Every 25 hours*.........
Replace spark plug Yearly.
Repla ce fuel filter Yearly...
*HoursofOperation
AIR FILTER
CAUTION: Do not clean filter in gaso-
line or other flammable solvent to avoid
creating a fire hazard or producing harmful
evaporative emissions.
Cleaning the air filter:
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmfulemissions. Alwayscleanafterevery
5 hours of operation.
1. Cleanthecover andtheareaaround itto
keep dirt and sawdust from falling into
the carburetor chamber when the cover
is removed.
2. Remove the parts as illustrated below.
3. W a sh the filter in soap andwater. Rinse
in clean cool water. Air dry completely
before reinstalling.
4. Reinstall parts.