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Delta Jointer - difficult to start, trips internal breaker, will start after a few tries

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Forum topic by hifliercanada posted 12-01-2018 03:08 PM 1081 views 0 times favorited 3 replies Add to Favorites Watch
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hifliercanada

3 posts in 52 days


12-01-2018 03:08 PM

Topic tags/keywords: jointer delta

Hi folks – I just acquired a great Delta jointer from a friend. It sat in an unheated outdoor storage unit for about ten years before I just picked it up.

It struggles to start. We have oiled all bearings and lubricated the spindle that turns with the knife blades. After 3 to 4 tries (where it briefly starts then trips the machine’s reset breaker), it will finally start and run. It handles jointing wood just fine once it is running. If you shut it off, even briefly, you need to go through the same set of repeated tries to get it to run continuously.

What would cause this? Could it be the brushes on the motor? Are there areas of moving resistance that I may not have lubricated?

Suggestions welcomed.

-- Wood - a wonderful renewable project material. Don't forget to re-purpose and reclaim wood for your projects!


3 replies so far

View WhyMe's profile

WhyMe

1073 posts in 1764 days


#1 posted 12-01-2018 03:54 PM

If it has a start/run capacitor, the capacitor could be bad. Ten years is a long time to sit without use.

View Phil32's profile

Phil32

271 posts in 106 days


#2 posted 12-01-2018 04:02 PM

I agree with WhyMe – my jointer is having the same problem.

-- Phil Allin - Ventura, CA

View MrUnix's profile

MrUnix

7051 posts in 2402 days


#3 posted 12-07-2018 08:44 AM


Hi folks – I just acquired a great Delta jointer from a friend. It sat in an unheated outdoor storage unit for about ten years before I just picked it up.

It struggles to start. We have oiled all bearings and lubricated the spindle that turns with the knife blades. After 3 to 4 tries (where it briefly starts then trips the machine s reset breaker), it will finally start and run. It handles jointing wood just fine once it is running. If you shut it off, even briefly, you need to go through the same set of repeated tries to get it to run continuously.

What would cause this? Could it be the brushes on the motor? Are there areas of moving resistance that I may not have lubricated?

Suggestions welcomed.
- hifliercanada

It’s an induction motor – no brushes. My bet would be the start capacitor – would cause the symptoms you describe. Those things don’t last forever, and really don’t like sitting idle for years in unconditioned spaces. Easy enough to test though with a cheap multimeter in resistance mode. You probably should replace your bearings as well, for the same reason – that and the fact that if you did really ‘oil’ them, then you sped up their demise if they aren’t already trashed. Sealed bearings require grease – and oil will just aid in flushing it away. Great for a very temporary fix, but will do long term damage.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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