SawTroll
Information Collector
A bit early imo, more like 15-20, and they should check the cylinder bolts as well......
MS361 Airfilter problem !!! IMPORTANT
- Thread starter tatra805
- Start date
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A bit early imo, more like 15-20, and they should check the cylinder bolts as well......
I have a new MS361 purchased just a couple of weeks ago. After reading all the info here I did a careful test/inspection. I did see a small amount of sawdust inside. Following advice I picked up somewhere in this forum, I applied a small amount of grease to the plastic filter where the bolt goes through. The only difference is that I used a special grease that I use at work. I work at an oil refinery, and we have thousands of pneumatic devices, and we can not use any type of oil lubrication in our air system. It is also extremely dry air, ~ -60* dew point. We use something called "Vacuum Grease" by Dow Corning. Sometimes at work we will use this stuff specifically to eliminate air leaks around things like piston rings in pneumatic piston actuators, past O-rings and gaskets both in positive and negative pressure environments.
This stuff in that location on the filter completely eliminated any signs of dust inside the filter on my MS361.
Check it out.
http://www.duniway.com/images/pdf/pg/datasheet-DC-150.pdf
http://www.vacuumoil.com/images/DC Tube.jpg
This stuff in that location on the filter completely eliminated any signs of dust inside the filter on my MS361.
Check it out.
http://www.duniway.com/images/pdf/pg/datasheet-DC-150.pdf
http://www.vacuumoil.com/images/DC Tube.jpg
after running several tanks (2 gallons) through my newer 361 , i have pulled the filter and see no signs of dust 
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SawTroll
Information Collector
after running several tanks (2 gallons) through my newer 361 , i have pulled the filter and see no signs of dust
Fine, but you should clean the filter a bit more often than that.........
i check under the hood and have cleaned the filter (gee , i sounded like an abuser )but never paid attention for fine dust particles like those shown in this thread , all i can say is that i have clean black plastic and i'm not going to worry about the issue every time i fire up the saw , i do have an older 361 that was well abused before i bought it , i haven't run it in a while so i'll pull the filter off that one and look for the same and compare both filters to see if they are different .
icelation8
ArboristSite Member
The winter filter. Mesh/White filter is designed to wick away mositure/water/snow that melts and turns to water. That is why they are recommended for winter use/ high moisture areas. If you are not cutting in the snow or a sunami then use the fleece filter.
Hope this helps answer any questions
Hope this helps answer any questions
jcsaws
ArboristSite Lurker
ms 390
here's a 390 filter,I seem to be only one around with this problem???
this is a good one ,3 tanks of fuel new filter. as i said b4 seen worse on other brands too.
here's a 390 filter,I seem to be only one around with this problem???
this is a good one ,3 tanks of fuel new filter. as i said b4 seen worse on other brands too.
Tzed250
Addicted to ArboristSite
If the dust is smaller than the micron rating of the filter, then it will pass through.
SawTroll
Information Collector
2000ssm6
Stihl User
jcsaws
ArboristSite Lurker
Who has a micron rating on there filters????the old filters(flocked type worked ok) .
The wood is river red gum,dry and yes chain was sharp.
The wood is river red gum,dry and yes chain was sharp.
Hi Guys!
I also have the problem on my 361 in that the filter does not seal around the edges. Solved it by applying a thin layer of Caltex Red Rubber Grease to the silicone rim of the filter (also fleece-type, b.t.w). Do not like having to do it this way - to me it's a design flaw.
I would like to make a few comments regarding this situation:
1. Just because many guys are not experiencing this problem, does not mean it is not real. Good for you if yours is fine. AS is here to help the guys whose saws are not fine. Let's try to help one another.
2. Anyone who doubts whether a saw which ingests wood dust would sustain damage need only to read the piston failure analysis on Madsens website: http://www.madsens1.com/saw_piston_fail.htm Look at the second case down. As somebody in this thread rightly said: If your air filter is designed to let in dust, why even have one?
3. Wood is not as "soft" as some of us have mentioned. Older wood mineralizes (i.e. its structure changes, and it hardens). It essentially becomes a compaction of long, thin "glass" tubes, which wreak havoc in IC engines. The filter must keep these things out! As an aside, these very fine "glass" tubes are the reason many woodworkers are stuck with emphysema and other related problems after years of woodwork, and why US legislation states that any woodworking company must route filtered are out of the building.
I hope that we can find a permanent, factory-sourced solution to this problem. I love my 361, and want to have it running perfectly for as long as possible.
@tatra805 I know this is kind of an old thread, but have you been able to solve your air filtration problem yet?
Mike
I also have the problem on my 361 in that the filter does not seal around the edges. Solved it by applying a thin layer of Caltex Red Rubber Grease to the silicone rim of the filter (also fleece-type, b.t.w). Do not like having to do it this way - to me it's a design flaw.
I would like to make a few comments regarding this situation:
1. Just because many guys are not experiencing this problem, does not mean it is not real. Good for you if yours is fine. AS is here to help the guys whose saws are not fine. Let's try to help one another.
2. Anyone who doubts whether a saw which ingests wood dust would sustain damage need only to read the piston failure analysis on Madsens website: http://www.madsens1.com/saw_piston_fail.htm Look at the second case down. As somebody in this thread rightly said: If your air filter is designed to let in dust, why even have one?
3. Wood is not as "soft" as some of us have mentioned. Older wood mineralizes (i.e. its structure changes, and it hardens). It essentially becomes a compaction of long, thin "glass" tubes, which wreak havoc in IC engines. The filter must keep these things out! As an aside, these very fine "glass" tubes are the reason many woodworkers are stuck with emphysema and other related problems after years of woodwork, and why US legislation states that any woodworking company must route filtered are out of the building.
I hope that we can find a permanent, factory-sourced solution to this problem. I love my 361, and want to have it running perfectly for as long as possible.
@tatra805 I know this is kind of an old thread, but have you been able to solve your air filtration problem yet?
Mike
Applying grease to the filters gasket helps a little. I also used some K&M spray filter oil, both helped prevent most of the fines from getting through the filter.
cus_deluxe
Commie Satan turd
Necro-threads rock!!
