Craftsman 944.514610 - Manual (Page 12)

I. Use the screwdriver end of the
chain adjustment tool (bar tool) to
move chain around guide bar to
ensure kinks do not exist. The
chain should rotate freely.
Chain Adjustment Tool
2. Loosen bar clamp nut until it is
finger tight against the bar clamp.
Adjusting Screw * Bar clamp nut
3. Turn adjusting screw clockwise
until chain solidly contacts bottom
of guide bar rail. Then, turn adjust­
ing screw an additional 1/4 turn.
Adjusting Screw - 1 /4 Turn
'^dD^©
4. Using bar tool, roll chain around
guide bar to ensure all links are in
bar groove.
5. Lift up tip of guide bar to check for
sag. Release tip of guide bar, then
turn adjusting screw 1 /4 turn clock­
wise. Repeat until sag does not
exist.
6. While lifting tip of guide bar, tighten
bar clamp nut securely with the bar
tool.
8
Use the screwdriver end of the bar
tool to move chain around guide
bar.
if chain does not rotate, it is too
tight. Slightly loosen bar clamp nut
and loosen chain by turning the ad­
justing screw 1/4 turn counterclock­
wise. Retighten bar clamp nut.
9. If chain is too loose, it will sag below
the guide bar and needs to be tight­
ened following above procedure.
^WARNING;
DO NOT operate the
pruner if the chain is loose. If the prun-
er is operated with a loose chain, the
chain could jump off the guide bar and
result in serious injury.
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A
dull chain makes a sawdust powder
and cuts slowly. See
CHAIN SHARP­
ENING in the SERVICE AND ADJUST­
MENTS section.
BAR MAINTENANCE
If your pruner cuts to one side, has to
be forced through the cut, or been run
with an improper amount of bar lubri­
cation it may be necessary to service
your bar. A worn bar will damage your
chain and make cutting difficult.
After each use, ensure ON/OFF switch is
in the OFF position, then dean all saw­
dust from the guide bar and sprocket
hole.
To maintain guide bar:
• Move ON/OFF switch to the OFF posi­
tion and disconnect spark plug {or dis­
connect powerhead from power
source).
• Loosen and remove bar clamp nut
and chain brake. Remove bar and
chain from pruner.
• Clean the oil holes and bar groove
after each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Burring of guide bar rails is a normal
process of rail wear. Remove these
burrs with a flat file.
When rail top is uneven, use a flat
file to restore square edges and
sides.
- File Rail Edges-
and Sides
Square
'Iff
Worn Groove Correct 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 replacement is nec­
essary, use only the guide bar speci­
fied for your pruner in the repair parts
list.
LUBRICATION
■ Bar Oil
Fill Cap
See GUIDE BAR AND CHAIN OIL un­
der the OPERATION section.
12