Maintenance - Poulan Pro PP4620AV Instruction Manual

A
41_WARNING:
Disconnect the spark
plug before performing maintenance except
for carburetor adjustments.
We recommend all service and adjustments
not listed in this manual be performed by an
authorized service dealer.
HELPFUL TIP
IMPORTANT: Have all
/_, repairs Othe r than the rec-
[_ I_ _ ommended maintenance
_ _/_DJ described in the instruction
manual performed by an
authorized service dealer.
!f any dealer other than an authorized
service dealer performs work on the
product, Poulan PRO may not pay for
repairs under warranty. It is your re-
sponsibility to maintain and perform
general maintenance.
MAINTENANCE SCHEDULE
Check:
Fuel mixture level .... Before each use
Bar tubrication ....... 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 15
tanks of fuel or 5 hours of operation, which-
ever comes first. Clean more frequently in
dusty conditions. A used aire filter can never
be completely c_eaned. It is advisable to re-
place your air filter with a new one after every
50 hours of operation, or annually, whichever
comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Ctean the air filter using hot soapy water,
Rinse with clean cool water. Air dry com-
pletely before reinstalling.
5. Reinstall air filter.
6. Reinstall cylinder cover and 3 screws.
Tighten securely.
I 4_ i I,-_7" "_, Screws
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 afire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
OCCUr.
CLEANING THE SPARK
ARRESTING SCREEN
Clean every 25 hours of operation or annually,
whichever comes first.
Steel
B°ckp,ate
_/._} } _
Muffler
Aluminum t-,i', /_', ¢
Backplate Muffler
Gasket
Bolt Cover Locknut
1. Loosen and remove the 3 cylinder cover
screws. Remove the cylinder cover.
2. Pull off the spark plug boot.
3. Loosen and remove the Iocknut from the
bolt cover. Remove the bolt cover,
4. Loosen and remove the 2 muffler bolts.
Remove the muffler and backplates. No-
tice the orientation of these parts for re-
assembling.
5. Locate the 2 outlet cover screws on the
muffler. Loosen and remove both
screws. Remove the outlet cover and
spark arresting screen.
BACK VIEW OF MUFFLER
Outlet Cover Muffler
Scre 7
i \"-J_7 _I /
i . _ I/ /
Bpark Arrest,no
Screen
14