Air Filter; Cleaning The Spark Arrest- Ing Screen; Carburetor Adjustments; Bar Maintenance - Poulan Pro 2750 Operator's Manual

MAINTENANCE SCHEDULE
Lubricate bar
sprocket hole . . . . . . . After each use
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
For 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
Replace fuel filter . . . Yearly
* Hours of Operation
AIR FILTER
CAUTION
: Do not clean filter in gasoline
or other flammable solvent to avoid creating
a fire hazard or producing harmful evapora-
tive emissions.
Cleaning the air filter:
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation.
S Clean the cover and the area around it to
keep dirt and sawdust from falling into the
carburetor chamber when the cover is re-
moved.
S Remove the parts as illustrated below.
S Wash the filter in soap and water.
Cylinder
Cover
Air Filter
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As the unit is used, carbon deposits build up
on the muffler and spark arresting screen,
and must be removed to avoid creating a fire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
occur.
Muffler Diffuser
Muffler
Muffler
Body
Cover
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
S Loosen and remove the 2 muffler cover
screws.
S Remove the muffler cover (cover snaps off
muffler body).
S Remove muffler diffuser and spark arrest-
ing screen assembly. Notice the orienta-
tion of these parts for reassembling.
S Clean the spark arresting screen with a wire
brush. Replace screen if breaks are found.
S Replace any broken or cracked muffler
parts.
S Reinstall diffuser and spark arresting screen
assembly with round holes facing up.
S Reinstall muffler cover and 2 screws (7-8
ft/lbs).

CARBURETOR ADJUSTMENTS

Your carburetor is equipped with limiter
caps. Carburetor adjustment is a compli-
cated task. We recommend that you take
your unit to an Authorized Service Dealer.

BAR MAINTENANCE

If your saw cuts to one side, has to be forced
through the cut, or been run with an improper
amount of bar lubrication it may be neces-
sary to service your bar. A worn bar will dam-
age your chain and make cutting difficult.
After each use, ensure ON/STOP switch is
in the STOP position, then clean all sawdust
from the guide bar and sprocket hole.
To maintain guide bar:
S Move ON/STOP switch to the STOP posi-
tion.
S Loosen and remove chain brake nuts and
chain brake. Remove bar and chain from
saw.
S Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Sprocket Hole
Oil Holes
S Add lubricant to sprocket hole after each
use.
S Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
13
Spark
Arresting
Screen
Muffler
Cover
Screws