Having been a Stihl chain saw dealer for
many years here in Berkeley Springs, Wv., I suppose I am rather
close to that particular brand of saws. I started the sales and
repair of them in 1978 and continued until 1991, at which time
I decided it was just to much for me to continue, with all the
other things on my plate. The distributor I was buying from really
decided for me. They got a new promotional sales Rep. for my area
and decided that my location wasn't contingent upon what he thought
was good enough to do the job right, and he wasn't wrong. The
way he done it was wrong but the John Deere Dealer got my dealership,
that I had built from the ground up, with sales of the immediate
50 mile radius and more, and a reputable repair business of all
Stihl saws plus any other make out there. I had a reputation of
being one of the best chain sharpening people anywhere and after
all, I did sharpen many thousands of them. Later on I'll try to
discuss the fundamentals of sharpening chain.
The chain saw has proved to be one of the
most labor saving tools of all tools ever. In times past, when
the cross cut saw was the norm of cutting trees down and trimming
them up, it was very labor intensive and very slow. As times changed
to a more rapid pace of things, the chain saw proved its worth
in, not only speeding things up, but causing the industry to be
much more productive so that cost could be overcome. If you take
notice the chain saw came along about the same time that transportation
enhanced greatly and the building boom increased also in the world.
As fuel cost begin to rise, it was a neccessary item for homeowners
to have to meet the demand of supplying wood for fuel to heat
the home.
All the different uses for the chain saw
caused a demand for them and most of the operators didn't have
the correct knowledge on how to use them. I remember a time when
I got a call from The Coolfont Recreation facility, just the other
side of the Berkeley Springs, and they needed a good chain saw.
They were relying on my expertise to furnish them with the saw
that would fit the particular needs. They said they had hired
a person that was a qualified chain saw person and would send
him over to pick up the saw. I sold them a "041AV" with
20" bar and chain, with four extra chains. He left with the
saw at about 10:30 AM to start cutting in the mountian side area
of CaCapon Mt. At 11:45 AM, the same day, I got a call from the
saw operator, which stated, "the saw was running hot and
it was smoking very badly". I couldn't imagine what would
cause this and I told him to bring it back over for me to have
a look. What I discovered was what I had envisioned to be wrong,
however I couldn't believe that a qualified chain saw operator
would have done this. The chain's teeth were ground off to where
there wasn't anything to sharpen. The whole top was gone on every
tooth. The smoke was caused by him sticking the "dogs"
(spikes) into the log, rotating the saw into the log, trying to
get it to cut. Thus the chain was forced so hard against the bar
it was burning the bars lubricating oil. Not only did it burn
the oil, but burned the bar itself off about a quarter inch and
blackened it half way up, compeletely ruining that side of the
bar. When asked if he had touched the ground with the chain, the
answer was, definitely, "Not" and besides, it was a
brand new saw, it should not have gotten dull that quick. I told
him that there was nothing other then sticking the bar and chain
into the ground that would produce that kind of damage. However,
I turned the bar over, installed one of the new chains and sent
him on his way. One hour later it was the same call I got before.
Saw hot and smoking. I told him to bring the saw back, and bring
one of the high officials with him, that I needed to discuss the
matter to them. When they got there it was a repeat of the first
time. He had ruined the other side of the bar, and the second
chain. I told the official that I would install a new bar and
chain, at their expense, and give a demonstration in proper saw
use before they took it off the property. I sawed 3/4th the way
through a log, turned it over and finished the cut from the top,
so the chain didn't touch the ground. I commented on how well
it was cutting at this time, and made a couple more cuts. I then
handed it to the operator and asked him to make a cut. Grabbing
the saw, he held the throttle wide open, slapped it on the log,
cutting all the way through and into the ground a couple of inches.
Immediately, I took the saw from him and told them both how the
chain was no good to continue. His comment was, " it can't
be dull". "Its a brand new chain". I then turned
to the official and planely stately what was the facts and how
the problem could be eliminated. Eliminate Him. The saw was put
into anothers hands and I didn't hear anything from them for weeks,
when the chains needed to be sharpened.
There is definitely a correct way to operate
and maintain a chain saw. Saftey is the most important aspect
to the operation and needs to be addressed by a competent person.
Just buying a saw, and going to cut isn't very smart, for the
novice. That's a good way to loose a part of your body that you
need tomorrow. I've heard some horrifying stories of what happenes
when the saw kicks back, slips from the hands, or the operator
looses his footing and it goes where it's not supposed to. I told
every saw buyer. "Remember one thing". "It cuts
meat just like it cuts wood". If I was concerned about the
buyers readiness to use the saw, I would give a lecture on the
safety features and what they were responsible to know, concerning
safety. The chain saw can be a pleasurefull tool to use when it
is operated and operating correctly.
I went into a garage in Great CaCapon one
day and Mr. Kidwell, the garageman, said to me. You are a chain
saw mechanic. Tell me why that saw ( homelite XL ) won't run.
Thay always told me if it had gas and spark it would run. It has
to have one more thing, I replied. "Compression". I
reached down to the floor, where it was setting, grabbed the pull
rope and lifted. The saw raised from the floor but decended back
down very quickly. Their's no hope for this one, I told Him. She's
a throw-a-way anyhow. When the chain gets dull, throw her away.
That's what I always told the Homelite users and owners. However,
the cause of this saws demise was very evident. Just looking at
it, I told him I could see the reason it was burned up. He said
it was a brand new saw, and I could tell it was, by its appearance.
The saws owner had brought it up from the city, to cut wood on
their lot, out on the mountian, and they dropped it off and left
with a half load of wood on their pickup. I asked Mr. Kidwell
if he could visually see anything wrong with it, which he replied
he didn't. The chain was installed on the bar backwards. I couldn't
believe it, but they had somehow cut a half load of wood with
the chain on backwards. The demand was just to much for that little
throw-a-way and it burned the cylinder out, in cutting the first
half load of wood.
Proper gas mixture is the most important
thing you need to know when using a chain saw. Always, and I repeat,
always use the manufactures recomendation when it comes to mixing
oil with the gas. They have tested to make sure their saw will
have the proper lubrication to make it run the best and last the
longest. Never use more or less then they recommend. Using more
oil will only carbon up the clyinder and cause poor performance
and premature cylinder ware. Always use Stihl mixing oil in
a Stihl chain saw.
When the 064 Stihl came out, it was a popular
model with the timber cutters in this area. But. it had a tendency
to use up a piston very quickly. They would bring it back with
a funny noise in it and low compression, making it hard to start.
I sometimes think if it had not been for the hard starting, they
would have run it till it flew clean apart. This happened to be
one of those particular saws where the carburetor couldn't be
leaned out to wind up the RPM's, or trouble was iminate. Usually
the cylinder was worn as much as the piston and both had to be
replaced. I contacted the Stihl Company and related this information.
They stated to me that they were having the same problem everywhere
and were glad to have the advise. Their answer to the problem
was to install a different carburetor on all models henceforth.
This carburetor was made so it could not be leaned out with the
high speed adjustment screw, at least not without some special
talent. The richer mixture gave the saw enough lubercation to
solve the problem. I am giving you this story to let you see what
can happen if you lean out the carburetor to much.
By the same token, the same goes for to
rich a mixture. That is, putting to much oil in the gas. As the
rich oil mixture is burned in the cylinder, it leaves a carbon
residue. As it builds up, the carbon sticks to the piston and
with the up and down motion, it scratches the cylinder wall. Pretty
soon compression is leaking past the rings and the assembly is
burned up.
As for the bar and chain. You use the bar
oil that you want. Use the chain you want. It is your saw and
you are buying the repairs and parts. However, my advise is to
always follow the manufacture's recomendation's. It is all to
easy to get into trouble without even trying. You want a saw that
is going to do a good job for you when you travel several miles
away from your base. It is very exasperating for the saw to give
trouble in these conditions. Make sure the saw is in good repair
before leaving base, and have proper bar and chain oil and gas
mixture as well as a spare chain that is sharp.
It is also a good idea to purchase a pair
of chapps and a face schield. The face schield comes on a safty
helmet as well as ear protection, if you wish to go that way and
can be purchased at your local chain saw dealer. One of the most
dangerous places on the whole body is the part of the leg just
above the knee. When limbing and cutting throught the tree top
you are throwing the saw in many different angles that are very
close to the knee area. Just maneuvering through the limbs and
brush, climbing over stuff, puts you in a precarious position
which in many cases is not stable footing, therefore causing the
saw to be in a position which could drop on ones leg if they slip,
fall or drop through the limbs with one foot. Now don't forget
about your feet. It is very easy to swing the saws blade to close
the toes and loose a couple. It is advisable to always wear steel
toed shoes when using a chain saw. The chapps will provide protection
for the legs and the helmet will cover the head, the face shield
the eyes and the ear protectors the ears. The helmet comes with
the face schield and ear protectors. Just be careful and
have fun cutting wood.
How
to sharpen chain saw chain