Makita DCS 520

[Mike Dempsey]

Just been given a hardly used above saw by a customer when I delivered some logs. Told me the coil pack needs replaced. Can anyone tell me how to check for this and where is the best dealer to get one from.

 

Mike

[billpierce]

people say Miles machinery is good

 

also Shavey on here is very helpful

[peatff]

Disconnect the wire to the stop switch and try pulling it over with the plug earthed to the cylinder. Check the clearance between the coil and the flywheel as well, business card thickness. Bit of a

[shavey]

sometimes just the kill switch needs cleaning or replacing if your coil is gone

the coil can be purchased from makita or as bill says miles tools and many shops on ebay

the coil was used on eight models so quite common dcs 430 dcs431 dcs4300i dcs 520 dcs5200i dcs43 dcs52 dcs540

[wicklamulla]

check to HT lead is securely screwed into the plug cap and coil.

[Mike Dempsey]

The saw has started once but died within a couple of seconds. Checked the spark plug and it is nice and clean and there is a good spark to the body of the saw. I will give the switch to the technician in the business next door on Monday. Checked out the coil price on Miles tool site and it is £80 quid. Cheaper to buy the switch so I hope it is the switch needing replaced. Cant take it apart as it is riveted together and only has one lead on it. Cleaned the contact but no joy yet.

Have to wait till Monday now. Thanks for your advice so far guys

 

Mike

[Breezeblock]

pts for makita parts thats who we use

[Mike Dempsey]

Just had another look at the saw. The bar has extreme wear on one side. Looks like he forgot to put oil in it and then used if for a while or the oil pump was blocked and he continued using it. The saw would have been overheating with the extra friction and work it had to do. Is it possible to cook the coil in such a scenario. just looking for possible causes as the saw hasn't done too much work?

[DCS6800i]

You say it ran? To me it sounds more like a duff fuel line or the carb has dirt in or needs servicing. Always start with the cheapest/easiest problems to solve and work up.

[wrsni]

Throw a new plug in it before you try anything dramatic. Modern plugs are odd buggers, frequently show a spark when earthed outside but won't run the engine. I always use a spark tester to test ignition systems, only reliable way.

 

You'll be replacing it anyway so do it before anything else just in case.