Jensen feed roller

[treemeup]

My feed rollers started squeaking yesterday but only when they are loaded. I grease them a couple of times a week and the machine is only on 340 hrs.

I'm thinking bearings but don't really want any downtime right now

[Mike Hill]

Its very likely that there are small stringy twigs wrapped around the Top Feed roller.Or there is a buildup of crap under the bottom roller.

 

Or its the Bearing on the Top (less likely)

 

Or the roll pin holding the Yoke to the Shaft has broken and the top roller is rubbing the inside of the feed "throat" (unlikely)

 

Open the Disc cover,measure how much the bolts inside the Spings protrude above the locking nuts (you need to wind then back to this measurement or a bit more when you re-assemble)

 

Take off the nuts holding the Springs,lift the arm up,lift the feed roller up and disconnect from the Stub protruding from the Gearbox.

 

Clean out the area where the top feed roller sits and have a look on the inside of the feed throat,see that its not "chewed up".

 

Sit the feed roller on a bench upright with the shaft sticking up in the air and see if you have much movement side to side in the bearing block thats mounted on the shaft.A little bit is normal,maybe 1mm each way.If its sloppy you need new bearings.(a diy job,the bearings cost me £30).

 

good luck with it and if you need any help,ask again.

[treemeup]

Great info!

 

gives me something to do this afternoon

 

Thanks Mike!

[Mike Hill]

Great info!

 

gives me something to do this afternoon

 

Thanks Mike!

 

No worries.

 

I forgot to add,when you have the shaft out and upright on the Bench,spin the bearing block around quickly and hear if its noisy.If it sounds rough,replace the bearings.

[treemeup]

Gotcha

 

cheers

[Stubby]

Hi . Just wonered . We have a jensen 540 and it drives me made when you are putting loads of brash through it eventually gets under the shaft of the top roller and the they wont close so it wont pull thin stuff in . Shoving a log through of 6 to 8 inch dia some times clears it but not always . I have to put a log in and stop it half way so it holds the roller up and dig the crud out with a screw driver . Msakes the job we are on longer .

[Rich2484]

Ha I would always choose greenmec over anything any day, the 220 we have has not faulterd since we got it exempt for new blades.

[treemeup]

Hi . Just wonered . We have a jensen 540 and it drives me made when you are putting loads of brash through it eventually gets under the shaft of the top roller and the they wont close so it wont pull thin stuff in . Shoving a log through of 6 to 8 inch dia some times clears it but not always . I have to put a log in and stop it half way so it holds the roller up and dig the crud out with a screw driver . Msakes the job we are on longer .

 

Haven't had that problem with the 528, the rollers sometimes don't grip for a time and just as you go to give the brash a wiggle it goes through!

[Mike Hill]

Hi . Just wonered . We have a jensen 540 and it drives me made when you are putting loads of brash through it eventually gets under the shaft of the top roller and the they wont close so it wont pull thin stuff in . Shoving a log through of 6 to 8 inch dia some times clears it but not always . I have to put a log in and stop it half way so it holds the roller up and dig the crud out with a screw driver . Msakes the job we are on longer .

 

Try slowing the infeed rate down.I think the rollers are spinning on the brush as it gets choaked entering the feed throat.The slower infeed rate will get balanced out by you not having to dig bits out.

 

I chip a fair bit of Spruce,its tempting to run the rollers at full speed.I think it works out faster running them at 75% or less.

[Stubby]

I knew that little cylindrical dial with the numbers on was for something ! Thanks will give it a try