So finally I have recovered some energy from lifting those heavy logs on my own – now that summer has finished here – we had 7 days of sunshine, the longest day of the year has passed and winter is racing towards us (My wife says whoopee “soon it’s time for skiing”) I will try to give some information on M7 and Stihl 660 used for my Cheery tree cutting.
Let’s deal with the Stihl 660 first of all. I am not going to bore you all with the technical details; these can be found on the Stihl website http://www.stihl.us/chainsaws/MS660.html
The first thing to note is that my Stihl 660 was delivered with a 70cm Blade (Logosol), not the standard 40cm, at my request.
So this saw uses 25 parts petrol to 1 part 2-stroke oil. Unlike the rest of my equipment has a 40:1 petrol/oil mix. Once the chain-oil reservoir and petrol/oil tanks were filled, the blade and chain attached – we pulled the chord a few times and the saw burst into life – we let it idle for a few minutes and then checked that the chain oiler was working – No problems, just a trace at the tip as it was supposed to be.
Once the motor is warm, in between cuts, the motor starts first pull every time – but run out fuel, refill and then try to restart – it is a “bitch” could do with a little primer pump.
I did use the saw on its own, without the M7 – it worked like a dream, cutting (cross-cutting) through the 1m wide stump of the Cherry tree, like a hot knife through butter.
When used in conjunction with the M7 (Rip-Cutting) I could not fault the performance of the motor, even when the blade was fully embedded in the log being cut.
The only down side was that my saw was delivered with a Swedish/Danish/Norwegian/Finnish manual, not a word of English anywhere – Hardly surprising since I live in the middle of these countries. Luckily, I was familiar with chainsaw procedures and spoke some German (some similarities to these languages). No download was available in English from the net, but a quick e-mail to www.Stihl.de and a few days later a lovely new ENGLISH hand book was in the mailbox.
So onto the M7. My M7 was provided by the manufacturers Logosol from Sweden, but this is available worldwide at www.logosol.com, just select your country or language from the menu.
The Technical details about the M7 are here http://www.logosol.com/_sawmills/m7/technical_data.php
The M7 arrived with the Stihl 660 in 5 boxes, 2 boxes for the M7, 2 for the Stihl, and the 5th for some other accessories I purchased.
On unpacking the M7, I found the manual to be in Swedish only – So being a good engineer, ignored the words and looked only at the pictures and started to assemble the saw the way I thought is should be assembled – about an hour later, I decided that a quick trip into the house to the PC would be beneficial, I downloaded the latest manual from Logosol in English, whilst I was waiting for my coffee to cook!
All the Nuts, bolts, washers are packaged into 7 bags – Each bag contains exactly the correct amount of materials for competing 1 or 2 pages of instructions. There is also a bag containing a mixture of all the Nuts, bolts and washers you have already used as spare parts – great idea (take them with you if you go into the field, you will need them). Do not forget the associated spanners and Hex keys.
Following the written guides as well as the photographs it was much easier – not that the assembly is difficult – it was easily achieved in 4 hours, including coffee.
The next day, I set the M7 out on a perfectly flat and level surface and proceeded to double check the angles and tightness of the bolts – I then gave the all the silver parts a quick spray with Boeshield T-9 http://www.boeshield.com/
The M7 is not really heavy – about 60kg (160lbs), but with a 5m50 (18’) boom attached it can be a little difficult to get the balance and lift it on your own. Any way, I got mine into my 8’*4’ trailer without too many problems.
Next I made a set of steps to help load the logs onto the M7, see the previous blog – In the Logosol videos and literature, they show a 2 pier step system, I built a 3-pier step system, as I knew the first logs I must cut were less than 2 m, and this would aid me moving these heavy lumps of wood on my own. These were loaded into the trailer as well.
Before I set off on my first expedition to recycle this Cherry, I re-watched the Logosol’s Videos in Swedish, re-read the instruction manual, and generally got a good feeling for the operation of the machine before leaving.
So the first important step to cutting good wood. Make sure you have a firm and level base and that both the legs of the M7 are co-planer, if they are not, you will twist the rail and not get a good cut. This took me about 45 minutes, but this included digging out some of the ground to get the M7 and the steps level – Each site will be different. I will be making a permanent base for the M7 at home, just in case I cannot cut my lumber on the owner’s site.
The operation was simple and smooth, as expected. The only fault I found was that some of the square nuts (not Nylock) decided to vibrate loose on the second day. A couple of nuts were lost; luckily I had my bag of spare parts and spanners with me.
What more can I say – I highly recommend the Logosol product, I have received nothing but excellent support from the team in Sweden. I am looking forward to the autumn (October/November) to start my next batch of timber cutting.
If any of you have got any specific questions about the operation of the saw or M7 please post your questions here or e-mail me, I will be more than happy to answer them. I hope you enjoyed the short series
-- Tony - All things are possible, just some things are more difficult than others! - SKYPE: Heron2005 (http://www.poydatjatuolit.fi)