Hot Lucas bar

**Seaman** · 30th January 2013, 11:20 PM

Sounds like a good name for a pub, right?

Seriously tho,

First post here, need a little advice.
While milling Maple yesterday,( fairly soft wood) My helper noticed the oil on the tip end of bar was BOILING! We shut down and removed the chain. The sprocket seemed to spin free, but has a little side play. Felt the rest of the bar, and it was only warm a foot from the end. My daughter walked along-side for the rest of the day and dribbled water on it, which kept it cool.

I figure I need a new sprocket tip, is there anything I haven't thought of?

Is the Lucas part the only one to consider?

Mill is a 8-27, several years old, with little or no maint before I bought it used.

I remember someone talking about adding a water dribbler to help cool chain, anyone here do this, and where should the water strike the bar?

I have a lot to learn, hope you fellas are patient!

Thanks from around the world,
Frank

**DJ’s Timber** · 30th January 2013, 11:48 PM

First question is what oil are you using for the bar?

If you're using chain bar oil, get rid of it and flush the bottle out and replace it with clean motor oil. Chain bar oil is too thick for the slabber.

**Seaman** · 31st January 2013, 02:11 AM

Thanks, Using 30W motor oil, new of course.

**Sigidi** · 31st January 2013, 09:51 AM

G'Day Frank.

first things first - oil was boiling?! Wow mate, that is a lot of heat!!! have you found 'why' the oil was boiling? what do you think was the cause of the oil getting so hot?

Until the latest slabbing bars (where the oil groove is now 'punched' into the bar) when I got both my bars, I spent a day on them 'tweaking' things. First thing I did was 'expand' the oil groove and hold the oil pipe better - check out post #23 (https://www.woodworkforums.com/f132/s...36/index2.html) also doing the leveling as you know already.

I have added a water feed on my older 6-18 slabbing attachment....https://www.woodworkforums.com/f132/l...cooling-88516/ but didn't really use it much.

Hope it helps out a bit Frank. but again first thing would be to find out why ya oil is getting so hot.....

**Seaman** · 31st January 2013, 10:13 AM

Sidgi, Hey Buddy, Thats hillbilly for G'Day mate!

I can only assume the sprocket tip is causing enough friction to heat up that much.
I have taken the bar off, and the sprocket feels a little rough, but not bound up. I am taking it to a local saw shop tomorrow, they think they have a tip to fit.
You could lay your hand on the bar a foot or so from tip, so all the heat was right in the tip. I don't know the boiling point of 30W motor oil, but it can't be good.
Good news is I put the blade on and cut some 1x1 in. stickers, and all went well. Looking forward to cutting dimensional lumber this week.
raining like a cow pissin on a flat rock right now, so I quit for the day to take the kids for an ice cream treat. Talk to you later.
Thanks for all the help.
Frank

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