Byrd-Shelix conversion for old 15" Jet planer

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Forum topic by thebigvise posted 11-27-2011 04:42 AM 1654 views 0 times favorited 3 replies Add to Favorites Watch
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191 posts in 2924 days

11-27-2011 04:42 AM

Topic tags/keywords: planer

Yesterday, I upgraded my old 15” Jet planer with a Byrd-Shelix cutterhead. Things went smoothly, but the process is quite involved as other on LJ’s had warned ad nauseam. My question has to do with the gear box. How much gear oil is needed? I may have overfilled, judging from the slow drip of oil THROUGH the bearing of the lower sprocket. The gasketed seam of the gear box itself is as dry as a bone, so I seem to have gotten that step correct. Should the oil just cover the lower half of the lowest gear? Is there a volume of oil specified?. My owner’s manual does not give a recommended oil capacilty of the gear box.

-- Paul, Clinton, NC

3 replies so far

View Fred Hargis's profile

Fred Hargis

4998 posts in 2516 days

#1 posted 11-27-2011 05:42 PM

My Delta takes about 16-18 fl. ozs, but there the manual says fill to the level of the fill hole. My guess is if it’s leaking through a bearing, you may need to replace it or an associated seal. When I installed my shelix, that clamshell gasket had leaked before so I killed 2 birds with one stone, repairing it when I reassembled. Another thing is that the oil may be leaking because the one you used was too thin. If the manual doesn’t spec anything, you might call Jet for their advice…mine takes a 140 wt. oil (per call to Delta).

-- Our village hasn't lost it's idiot, he was elected to congress.

View thebigvise's profile


191 posts in 2924 days

#2 posted 11-27-2011 07:30 PM

Thank you very much for the specific advice. I will do as you suggest. I will also try some bearing sealant suggested by a friend of mine, supposedly added to the gear oil. If I must, I will disassemble the d@&% thing again and regroup, with focus upon the offending bearing or area.

-- Paul, Clinton, NC

View Peteybadboy's profile


293 posts in 1972 days

#3 posted 04-21-2013 04:12 PM

I am in the process of upgrading my Delta DC380 15” planer. How do you get the gear box casing off the old cutter head?. A youtube vidio says to tap the back of the casing, it has only moved a 1/6th. I don’t want to pound the crap outa it. Any advice? (ps can’t get the gear off the other end either. Vido says just take the gear off…will not budge!

-- Petey

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