Poulan PRO 305 - Manual (Page 16)

GENERAL MAINTENANCE
A good maintenance program of regular inspection
and care will increase the service life and help to main­
tain the safety and performance of your saw. • Check saw for loose bolts, screws, nuts, and
fittings regularly. Loose fasteners can cause an
unsafe condition as well as damage to your saw.
• Make all aiiyustments or repairs (except car­
buretor a^ustments) with:
— spark plug wire disconnected.
— engine cool as opposed to a saw that has just
been run.
A WARNING
Have all chain saw service performedi by a quali­
fied service dealer other than the items listed in
the maintenance section of this manual.
A. GUTOE BARAND CHAIN
Increase the service life of your Guide Bar and
Chain by;
— Using the saw properly and as recommended in this
—- Maintaining correct chain tension, page 8.
— Proper lubrication, page 10.
—• Regular maintenance as described in this section.
1, CHAIN MAINTENANCE
• Sharpen the chain when:
--wood chips are small and powdery.
Wood chips made by the saw chain should be
about the size of the teeth of the chain.
— saw has to be forced through the cut.
— saw cuts to one side.
I CAUTlONi I Always wear gloves when handling the
chain. The chain can be sharp enough to cut you
even though it is too dull to cut wood.
a. SHARPENING INSTRUCTIONS
Items required:
Gloves
4.5mm Diameter File
Flat File
Depth Gauge
6” File Holder
1.
) Stop the engine and discohnect the
sparkplug.
2. ) Adjust the chain for proper tension. Page 8.
3. ) Work at the midpoint of the bar, moving the
chain forward by hand as each cutter is filed.
4. ) Sharpen Cutters.
a.) Position the file holder level at a 10
angle on the top plate of the cutter and
depth ^uge. Figure 28.
h.) Align the 25® file holder marks with the
bar and parallel to the center of the chain.
Figures 29 & 31.
NOTE; If your file holder has a 30 ® markj disre­
gard this mark and file at a 25® angle.
c. ) File from inside toward outside of cutter,
straight across on forward stroke in one
direction only. Use 2 or 3 strokes per cut-
tingedge. FigureSO.
d. ) Keep all cutters the same length. Fig­
ure 30 .
e. ) File enough to remove any damage to the
cutting edges (side plate add top plate) of
the cutter. Figure 30.
f. ) File chain to meet specifications shown in
Figure 31.
A WARNING
Maintain the proper hook angle accordingto the
ni^ufacturer*» specMcation for the chain you
using. Too much hook angle will increase the
chj^c^ of kickback which can result in serious
iidury« Figures 31 & 33 .___________________
File Holder
Depth Gauge
Figure 28
Figure 29
Cutters
Same Length
Remove Damage
1 1^ 1
r^/
\
{o\ Ш
Side Plate Top Plate
Figure 30
Figure 31
Figure 32
5.) Correct bepth Gaug^
a. ) Kace depth eaph cutter
depth gauge. Figure 32 .
b. ) File depth gauge with a flat file until it is
level with the top of the depth gaii^ tool.
c. ) Maintain rounded front comer of depth
gauge with a flat file. Figures 32 & 33 ,
NOTE: The veiy top of the depthgauge should be
fiat with the front half rounded off with a flat file.
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