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FILING INSTRUCTIONS
Model 3581350842 (Craftsman 2.1)
Your wood cutting chores will be a lot easier if the chain
is always properly sharpened and tensioned. If you notice
cutting becoming difficult and you have to push on the
.saw to make'it cut and you notice the chain "walking"
sideways in the cut, this is a good indication that the
chain is dull and needs sharpening. Keep in mind that if
you let the chain cut in the dirt you will dull it at once,
Stop the engine and sharpen the chain. Cutting with adull
chain puts an excessive load on both the bar and chain
and witl greatly shorten their life. if you have never pur-
.chased a bar and chain, you wilt be surprised how costly
they are.
To properly sharpen your chain,you will need a file holder,
the correct size file (5/32" dia.), and .025 ,Depth Gauge
jointer. (See page 29). Be careful when handling saw
chain. Remember that even though the cutters are too
dull to cut wood, they'!! still cut fingers.
Fig. 26
jointer
Fig. 27
2
1. If possible, remove the chain from the saw and put
it in a saw filing vise. If you do not have a filing vise,
....i-increase the chain tension on the bar and sharpen the
::,:chain while it ison the bar.
2. There are three anglesthat must be maintained for a
properly sharpened chain. See Figure 26. All three of
these angles can be maintained accurately by Using.a file
iholder and file,
• :-_-3. Place the file holder soit rides on both cutter top
i plate and: depth gauge {Fig, 26)with guide marks in fine
with the bar. File the cutters on the side of the chain
away from the Cutting edge. Apply Pressure:on the for-
ward stroke on!y. See Figure 26. ....
4._ Hold file:hepdte down 10degrees asyou :make a few
firm strokes away from your self, appty_ing pressure
against the cutting edge. Apply pressure on the forward
stroke only. See Figure 26.
5. Sharpen all cutterson one side of chain, then work
from other side of chain and repeat sharpeningprocedure
for opposite side cutters. Be sure to file all cutters uni-
formly.
6. To set all depth gaugesat the same level, place the
Depd_ Gauge jointer, Part No. 55005, over each depth
gauge and file the depth gauge with a fiat file until it is
level with the jointer, then round off the leading edge of
each depth gauge. See Figure 27. File the depth gauges
after each four to five times the chain is filed, it is not
necessary to file depth gaugesafter every chain sharpen-
ing. When sharpening the chain, also check the bar to see
if there are any burrs on the rails of the bar, especially
around the nose. File away the burrs with a flat file. Be
sure to clean off filings.
7. After sharpening all teeth and setting all depth
gauges,clean off the chain and re-setchain tension. Tighten
chain tension until all tie straps(see no. 1, fig. 28) rest on
Fig. 28
11
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