Jet jpt-310 problem

[jorgoz]

When thicknessing stock, i have to push and pull it through, no matter how much or little wood i take of. Has anyone had this problem before. I pressume the problem is the rubber outfeed roller slipping. I do put some paraffin on the boards, the side which is on the table, to make them slide easier, but still not feeding through properly.

 

[Peter T]

I've no experience of the Jet thicknesser, but whenever my DW thicknesser did that, it was time to get the knives sharpened/replaced.

Good luck,

 

[jorgoz]

Blades still leave a very clean finish, not like when they would be fresh, but still very good. But will try it to see if it makes a difference.

 

[9fingers]

Whilst I don't disagree with Peters comment, the OP is having problems irrespective of the depth of cut.
There has been a bit of history on here with some Jet PTs where the bearings on the rollers have become tight. Might be worth checking that all these are free and doing some routine maintenance/lubrication anyway. I assume that the power feed is engaged and that the drive mechanism is ok?
It is more normal to put lubricating wax on planer tables rather than paraffin in my experience but that is not likely to be the problem here

Bob

 

[dickm]

I've posted this comment before, but in case the OP hasn't seen it, another thing to check is that there isn't a build-up of shavings under the bearings of the feed rollers. On my Lurem, and I suspect most P/Ts, the feed roller bearings slide up against spring pressure as the timber feeds through, then drop back down when it has passed. Shavings can get into the bottom of the slide space, and stop the rollers being pressed down fully. Even with reasonably good extraction, mine needs clearing out every so often or it stops feeding.

And waxing the lower table does make an amazing difference.

 

[Dodge]

I used to use one of these - The tables need regular cleaning with a decent anti friction cleaner - Especialy if planing alot of softwood

I tend to use Felder "Gleit" but CMT resin remover cleaner will do the same job - Word of advise though do not use WD40 - has habit of chemical staining hardwoods - Ash in particular!

Rog

 

[jorgoz]

Thanks for the suggestions all.

 

[Waka]

Jorgoz

I'd be interested to know what method you used to resolve this problem. I've had the JPT 310 for about 6 years now and haven't experienced any problem at all, I do tend to wax the table every now and then and I have to admit my planned maintenance is a lot to be desired, although my blades are regularly re-sharpened.

 

[tomatwark]

Take the back plate off and check the spring that tensions the drive belt for the thicknesser is still attached, I have one of these and have had this problem in the past.

Tom

 

[jorgoz]

Thanks Tom, you were spot on. There was a problem with the belt for the thicknesser.

Also, the planer spindle's belt has a few fissures (click for bigger view).

Should i change the belt ? There seems to be to little tension on the planer spindle's belt, i can push it a full inch inside. Does it need more tension ?

George

 

[9fingers]

Nominal tension for a belt drive would be to be able to move it 1/2" from its nominal path.
Do not over tighten as this adds a lot of strain on motor and cutter block bearings.
Belts do wear and should be replaced if the bottom of the vee of the belt is touching the bottom of the vee in any of the pulleys
Lubricate all the rollers whilst you are in maintenance mode - it is a weak point in these machines.

hth

Bob

 

[tomatwark]

My belt ran like that for about 2 years until it had stretched enough that I could not adjust it any longer, rang Axminster to get a spare thinking they would stock them, they got it from a local belt supplier near them so if you need to change yours I would look in yellow pages and get it from your local supplier which is what I would have normally done, but was trying to make life easier.

Tom

 

[jorgoz]

It's purring like a kitten again.

Adjusted tension to 1/2 inch play. Will start looking for a replacement as i live in a place where it's quite difficult to get woodworking tools/equipment, better to have one lying around than having not being able to use the machine.

Cheers.

George

 

[simmy]

Hi guys, if I may put in my twopennywrth, you will find that most belts are made to a standard and various manufacturers use these standard bels therefore you would be better off simply finding a belt manufacturer or supplier as you will save money and time,it is extremely unusual for a belt to be exclusive to one application, further if you want to lubricate the planer bed simply and easily use a candle.

 

[woodbloke]

Do any of these issues apply to the smaller 260?...I assume they do - Rob

 

[9fingers]

Yes Rob.

Machines should be lubricated, belts should be examined and tensioned correctly, tables should be waxed and belts/bearing are cheaper bought from from specialist factors rather than manufacturers spares.
Belts do wear and become narrower, slip down the pulley vees and loose tension but they almost never get any longer or stretch.

When you are not doing that lot - feel free to do a bit of woodwork :lol:

Bob

 

[woodbloke]

Thanks for the 'heads up' on that one Bob...I'll bear it in mind for when I get my 260 (complete with Boblock of course :wink: :lol: ) - Rob