Author Topic: Husqvarna K760 cut off saw.  (Read 3907 times)

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Re: Husqvarna K760 cut off saw.
« Reply #10 on: January 14, 2014, 09:12:41 pm »
Well I took this thing all apart today and then put all back together, got it running and tuned it, only to find out the kill switch is not working.   So tomorrow I will do it all again.
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Offline KilliansRedLeo

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Re: Husqvarna K760 cut off saw.
« Reply #11 on: January 14, 2014, 09:41:10 pm »
I believe that the kill switch is one of those spring metal types like on a  home owner saw. Sometimes the get a little sprung and just need to be bent a little so the tab makes contact with the spring. This usually happens when you are struggling to get the carb/cylinder off.
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Re: Husqvarna K760 cut off saw.
« Reply #12 on: January 14, 2014, 10:02:00 pm »
I believe that the kill switch is one of those spring metal types like on a  home owner saw. Sometimes the get a little sprung and just need to be bent a little so the tab makes contact with the spring. This usuall happens when you are struggling to get the carb/cylinder off.
Ok I will check it out.
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Offline Eccentric

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Re: Husqvarna K760 cut off saw.
« Reply #13 on: January 14, 2014, 10:20:17 pm »
Have fun, they only have a 2 yr warranty for a reason, they are generally shot within 18 months! Shot to the point that repairing them is not economical at lest if they are being used to cut concrete or stone. Actually, I like Husqvarnas but Stihl makes a better saw for this purpose! :'(

Yeah I'm not looking forward to messing with the damn thing.  As you stated earlier, they're usually abused to no end.  When they're a bugger to work on (like this design) AND abused like that...............well it's the makings of a good time.  That's actually not a Husqvarna design.  I wish Husky still sold the older cutoff saw designs that were based on their chainsaws (such as the 268K, 272K, 371K, 372K, 375K, and 3120K).

Is it a Partner design?

Yep.
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline Magnus

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Re: Husqvarna K760 cut off saw.
« Reply #14 on: January 15, 2014, 02:28:47 am »
Partners last design was the cubic ones that ended with 650 series. They had no design of their own after Elux, but HVA pretty much went on the same track until fresh air engines came to be.

The 750 series is Husqvarna design straight thru.
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Re: Husqvarna K760 cut off saw.
« Reply #15 on: January 15, 2014, 01:32:18 pm »
Finished taking the K760 apart today and putting it back together with the kill switch fixed.   I am glad that is done.
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Offline KilliansRedLeo

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Re: Husqvarna K760 cut off saw.
« Reply #16 on: January 15, 2014, 02:41:09 pm »
OK Roger, so what was the problem with the kill switch?
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

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Re: Husqvarna K760 cut off saw.
« Reply #17 on: January 15, 2014, 03:06:22 pm »
Some one had been in this saw before and the ground wire was broken.   I ran another wire from the switch to ground.  This saw had screws missing stripped threads for the starter cover, you know some one just messing around with it and did not know what  they were doing.  I put it back together with some blue Loctite in a few places.
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Offline Eccentric

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Re: Husqvarna K760 cut off saw.
« Reply #18 on: January 15, 2014, 03:45:05 pm »
Partners last design was the cubic ones that ended with 650 series. They had no design of their own after Elux, but HVA pretty much went on the same track until fresh air engines came to be.

The 750 series is Husqvarna design straight thru.



In the US, that series of cutoff saws have been badged/sold as Partner up until a few years ago.  For a number of years before that.......they were branded as Partner (while Husqvarna cutoff saws were models based on their chainsaws, such as the 268/272K, 371/375K, and 3120K machines).  That's why I'd stated that these machines were a Partner design. Looks like they were designed by Husqvarna to be sold as Partner (and later Husqvarna) branded machines.  Splitting hairs...

http://www.ebay.com/itm/PARTNER-K700-ACTIVE-III-CUT-OFF-SAW-DEMO-CONCRETE-CEMENT-ROOFING-NEW-BLADE-/191031903663?pt=Concrete_CutOff_Saws&hash=item2c7a6385af

http://www.ebay.com/itm/husqvarna-k750-concrete-cut-off-saw-Demo-saw-Demolition-Partner-K750-Chop-Saw-/331101637700?pt=Concrete_CutOff_Saws&hash=item4d17320c44

http://www.ebay.com/itm/PARTNER-GAS-POWERED-CUTOFF-SAW-K950ACTIVE-/121081145954?pt=Concrete_CutOff_Saws&hash=item1c30ffaa62

http://www.ebay.com/itm/Husqvarna-K1250-Concrete-Cutoff-Saw-SIZE-14-/331103771579?pt=Concrete_CutOff_Saws&hash=item4d17529bbb

http://www.ebay.com/itm/2-New-CYLINDER-PISTON-RINGS-Kits-Husqvarna-Partner-K960-K970-Cutoff-Saw-56mm-/261264492977?pt=LH_DefaultDomain_0&hash=item3cd493c9b1

http://www.ebay.com/itm/2-New-CYLINDER-PISTON-RINGS-Kit-Husqvarna-Partner-K750-K760-Cutoff-Saw-51mm-/261334925687?pt=LH_DefaultDomain_0&hash=item3cd8c68177

http://www.ebay.com/itm/HUSQVARNA-PARTNER-1250-K1250-CUT-OFF-CONCRETE-CHOP-SAW-REWIND-STARTER-RECOIL-/290660604779?pt=LH_DefaultDomain_0&hash=item43acb8db6b

http://www.ebay.com/itm/Husqvarna-Partner-starter-assembly-complete-506235903-NEW-NOS-cut-off-saw-k950-/151208594309?pt=LH_DefaultDomain_0&hash=item2334bc0b85

-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline KilliansRedLeo

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Re: Husqvarna K760 cut off saw.
« Reply #19 on: January 15, 2014, 04:05:49 pm »
Roger, is that the black wire that is trapped under a screw in the carb box that holds the flat contact spring? Sometimes it is possible with forceps to fish a new wire without dismantling the saw.
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

 

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