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Post by henrun on Mar 4, 2018 8:49:26 GMT -5
My bread and butter track saw it has been, loved it to bits - it is one of my favourite tools. Last week I was rebuilding a commercial studio and had to open up the walls (mdf outer layer) to fit some acoustic material and as I started to plunge in gently the KSS 40 went *bleep* and stalled. Thinking it was the kick back protection I tried again but the blade was stuttering forward one mm or two before halting - free of contact from any material and *bleep *bleep it went. It is actually a louder bleep than the usual kick back protection bleep. I tried everything: changed batteries (all fully charged), switched blades, let it "cool down" though it wasn't even used that day. Cleaned it up to see if there was any gunk build up and there was no problem rotating the blade manually but something has gone mental inside that circuit board it seems. Holding the trigger does not even get the blade started and it bleeps at two second intervals. Handed it in last Wednesday and they are supposed to give you a diagnosis within 24 hours but still haven't heard from them so I will check back with them tomorrow (Monday). Bought it in mid/late 2016 so it has some mileage but I have been taking care of it and up until the failure the unit has been awesome. The whole task fell on the Metabo STA 18 LTX jigsaw and I have to say it did a good job. Not very fond of the jigsaw but it literally saved the day and got me through that pickle with flying colors. I did hit the occasional screw in the wall on the way so in a way I am glad I didn't ruin the 12 tooth blade on the Mafell. Jigsaw blades are way cheaper!  |
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Post by aas on Mar 4, 2018 8:52:43 GMT -5
mmm... I've had this happen a couple of times, but it always restarts within a few seconds. You've got me worried now!
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Post by henrun on Mar 4, 2018 9:05:37 GMT -5
Ok, I've never had it happen to me before so it came straight out of the blue for me.
Three year warranty is good to have... ...but I prefer tools that last.
I was "lucky" to have a back up tool to fill the void and save the day as I was on a tight dead line in a studio that is used commercially and had only so much time before production was back on.
We had a bit of a blizzard and snow chaos so returning to base to get the other circ saw was really not an option at that point. Even though I plowed my way in with my Subaru in the early hours I would only have been stuck in traffic going back and would easily have lost half a day in the process.
Lesson learnt: don't doubt the need for back up tools on time critical jobs...
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Post by chippiegary on Mar 4, 2018 13:44:27 GMT -5
I kept my kss300 for that very reason “my first love won’t ever part with it “ hopefully they can sort for you it’s a great saw for sure wouldn’t want to be without too long
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Post by henrun on Mar 4, 2018 14:52:19 GMT -5
Yup, was indoors too with the right blades in the box and could have used my old KSS300 if I had kept it...
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Post by henrun on Mar 21, 2018 2:35:36 GMT -5
Just got the saw back from the repair shop. Apparently I had "blown" the motor unit (!).
Anyway, it was replaced under warranty.
It must have been stress from cutting that wet semi frozen pressure treated timber last year. So much for overload protection - huh?
Still, I can't help but think that a saw should be able to cut wood all the way to the maximum depth of cut without breaking. In my case I was well within the depth limits of the saw but admittedly the timber was tough to cut.
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Post by calidecks on Mar 31, 2018 23:00:17 GMT -5
Just got the saw back from the repair shop. Apparently I had "blown" the motor unit (!). Anyway, it was replaced under warranty. It must have been stress from cutting that wet semi frozen pressure treated timber last year. So much for overload protection - huh? Still, I can't help but think that a saw should be able to cut wood all the way to the maximum depth of cut without breaking. In my case I was well within the depth limits of the saw but admittedly the timber was tough to cut. Wow! I cut pressure treated all day with that saw, even rip on occasion. It bleeps, but starts back up. Maybe I'll rethink the ripping part at least. |
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Post by henrun on Apr 1, 2018 14:59:55 GMT -5
Calidecks: the only time I can think of having stressed the unit really hard was when cutting and ripping semi frozen pressure treated timber. Still, I didn't stall the saw more than a couple of times and after each gentle bleep it would start back up again. Most of the work was cutting and not ripping though I was cutting a length of about five six meters of continuos cuts with my long Bosch rail when I was cutting up a deck.
The problems with the KSS 40 started a few months later after light use and the saw being spared work for a while.
These continuous bleeps (a bleep every two or three seconds) was a bit louder and the motor would not engage or rotate the blade more than a mm.
I think you would be fine ripping when conditions are not adverse ("wet" and cold timber or lots of rips at a time) and using the rip blade.
I am now happy I bought the el cheapo Metabo KGS 57 for rough duty, blades are stunningly cheap and it has plenty of power for the rough cuts.
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Post by aas on Jun 20, 2018 12:34:08 GMT -5
I don't understand the beeps... sometimes if the blade is pushed into the wood before I start, it just beeps - OK, user error. If the cut closes on the blade due to lack of support - it stops and beeps - again user error.
Other times, it just beeps mid air when I go to start the saw. The only thing that will stop it, is to remove the battery and refit it. This is quite annoying.
I'm in the middle of a 360m³ decking plank change - I really am counting on this to see me through. Starting to think I should ditch the KS18LTX57, and add a backup KSS50 BL to replace it.
I don't think the KSS 40 will make 3 years old without taking a visit to Mafell.
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Post by henrun on Jun 21, 2018 11:52:36 GMT -5
360 _cubic_ meters sounds like a HUGE undertaking.  Nah, seriously, 360 m2 is a lot - that will lead to some serious machine time! My repaired KSS40 gave me a scare and went bleep bleep and stopped as I dry ran it in air the other day. Then it worked again. Hmm, I hope this will not be a reoccuring theme. Love the little helper and I am counting on it for some heavy use for three four months now! If money was no object I would easily go KSS50 over KS18LTX57...123XXXBLABLAETC. |
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Post by thehandyman on Jun 21, 2018 13:04:37 GMT -5
My KSS 40 has done the beep beep in the air when not cutting a few times now. I was confused, paused a few seconds, and it fired right up.
Haven't had to remove the battery yet.
Man do I love not setting up the miter saw or carrying boards around.
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Post by henrun on Jun 21, 2018 13:56:23 GMT -5
Ok, so it seems like something inherent in the machine. Good to know. As long as it works I guess I can live with that as long as it does not quit on me.
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Post by holmz on Jun 21, 2018 19:11:51 GMT -5
360 _cubic_ meters sounds like a HUGE undertaking. ... Or a high volume of work |
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Post by aas on Jun 21, 2018 23:45:04 GMT -5
360 _cubic_ meters sounds like a HUGE undertaking. Nah, seriously, 360 m2 is a lot - that will lead to some serious machine time! My repaired KSS40 gave me a scare and went bleep bleep and stopped as I dry ran it in air the other day. Then it worked again. Hmm, I hope this will not be a reoccuring theme. Love the little helper and I am counting on it for some heavy use for three four months now! If money was no object I would easily go KSS50 over KS18LTX57...123XXXBLABLAETC. Yes... little typo there... 360m² - 130mm wide, 4m board lengths, so about 650 boards. It's not that many cuts.
I thought you had problems with the KSS50 too?
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Post by henrun on Jun 22, 2018 5:48:21 GMT -5
650 boards not that many cuts?
Largest decking I ever made was about 140 m2 and ran around a house on three sides. That was large enough.
Triple that? Ouch!
I didn't have any problems with the KSS50 except I thought it a bit underwhelming for deeper rip cuts. I expected more grunt and closer to the performance of the KSS60 than the KSS40. Only good thing to come out of that was me being more pleased with the KSS40 and me getting the MT55 18bl instead. Except for the KSS40 acting up I am pleased with the set up and even sold my MT55cc as I honestly don't even need it anymore.
The KSS50 I still think is more powerful and cuts better than Festool HKC55 - for both power and quality of cut. Still I think the HKC55 is a very good allrounder and I wish Mafell had that plunge set/lock that the Festool has.
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