- Joined
- Feb 15, 2018
- Messages
- 16
Hello,
I have a motor problem on my mill that I'm hoping is common or straightforward.
I guess I'll do a summary first, then proper intro, specs, and explanation:
The rest of the facts:
I recently acquired one of those somewhat white-label benchtop milling machines (mill drill) called a ZX7025, offered by multiple companies such as Luzhong (mine's used and a little modified, so who knows) :
type:
pics from mine, actual unit:
It has a 1 hp motor currently wired for 110v. It is quite simple with no brain or complicated wiring harness, seemingly just a power cord, a switch, and a motor with the two capacitors. No electrically adjustable spindle speed, just a static max speed and manual belt pulley placement options.
An honest friend claims it was working fine at first on his 110v wall socket but after sitting it does as described. It does, indeed, have a 110v plug on it.
Here's a better look at the goes-inta:
I really appreciate any insight on the matter. I'd like not to have to buy and install a new motor.
I'll answer any questions I can, will watch for replies, and I look forward to posting a bit about the interesting new woodwind instrument craftsmanship work I plan with the machine, sharing a little of my own ingenuity with things I've come up with.
Thanks much,
Jeff
P.S. SAFETY --
While my technical knowledge in this area is fuzzy --
my safety procedures are not fuzzy
I have high voltage vintage radio transmitter experience, so I promise to be aptly careful, discharging caps and I have insulated instruments including a grounded probe with insulated shaft and handle. Thanks again.
I have a motor problem on my mill that I'm hoping is common or straightforward.
I guess I'll do a summary first, then proper intro, specs, and explanation:
- – The spindle gets up to maybe about full speed, then <click> slows down almost like no power, then <click> process starts over.
- – It's the type with both a startup and a running capacitor. I don't have much experience in this area. I'm hoping the <click> is not a thermal breaker (like it sounds), and instead that maybe it's an internal relay switching from Startup to Run mode and the capacitor(s) simply need replacing...? Or maybe it is a thermal switch but the heat is still because of bad caps?
- – I'll say this: When it speeds up and <click> and you turn it off... it still goes <click> anyway, one more time, like a cooled off thermal strip resetting even powered off.
The rest of the facts:
I recently acquired one of those somewhat white-label benchtop milling machines (mill drill) called a ZX7025, offered by multiple companies such as Luzhong (mine's used and a little modified, so who knows) :
type:
pics from mine, actual unit:
It has a 1 hp motor currently wired for 110v. It is quite simple with no brain or complicated wiring harness, seemingly just a power cord, a switch, and a motor with the two capacitors. No electrically adjustable spindle speed, just a static max speed and manual belt pulley placement options.
An honest friend claims it was working fine at first on his 110v wall socket but after sitting it does as described. It does, indeed, have a 110v plug on it.
Here's a better look at the goes-inta:
I really appreciate any insight on the matter. I'd like not to have to buy and install a new motor.
I'll answer any questions I can, will watch for replies, and I look forward to posting a bit about the interesting new woodwind instrument craftsmanship work I plan with the machine, sharing a little of my own ingenuity with things I've come up with.
Thanks much,
Jeff
P.S. SAFETY --
While my technical knowledge in this area is fuzzy --
my safety procedures are not fuzzy
I have high voltage vintage radio transmitter experience, so I promise to be aptly careful, discharging caps and I have insulated instruments including a grounded probe with insulated shaft and handle. Thanks again.