Reply by CaptainKlutz

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Posted on Delta DC380 Planer issue.

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1638 posts in 1947 days

#1 posted 12-10-2018 04:25 AM

+1 can only change speeds while running, but you can sometimes shift into neutral while not running.

Have same planer. My guess is shaft is bent. Has happened to mine.
The speed selector shafts are made from generic soft steel, and are easy to bend. They have a very close tolerance fit into gearbox, using an o-ring to seal shaft. Only takes a hard knee hit to the shaft to tweek it.

If turn on planer and look underneath at feed rollers, you can see if it’s in fast/neutral/slow. Total amount of shaft movement when shifting speeds is small, less than 1 inch total.

Black knob is threaded onto the speed shaft. Can remove knob and use straight edge to see where shaft is bent. Gentle persuasion with block of wood and hammer can straighten it enough to slide in/out. Do not twist the shaft as inside the gearbox there is shift fork attached to end of shaft with screw. If screw gets loose, the fork wobbles making it randomly shift into neutral, you will have to open the gear box and tighten it.

Best Luck.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

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