150 roller play.

[High Scale]

How much play should there be in the feed rollers? Mine were replaced around two years ago, there seems to be a fair amount of play, is this normal?

 

Also, every now and then, the chipper will cough out a bolt holding the feed rollers in, despite having thread locking them, I have been advised to re-tap the threads for 12mm, any thoughts?

[Timberwolf Official]

Hi High scale

 

There should be no sidewards or up and down play in the feed rollers on a 150 machine, I would suspect that either the bearing boss or plastic bush has worn and requires replacement, this could have happened if you do not grease the roller through the grease nipple on the end of the located on the roller box.

 

Slightly confused with your term 'coughing out a bolt'

Do you mean that the bolt is coming out of the spline drive end or from the roller blades.

 

If it is from the spline drive, to retap and seal with a threadlock may cure the problem. If it does not then I advise you replace the hex roller holding the blades.

Please use Loctite 243 thread lock on these threads

 

If you mean that a blade bolt is being spat out, this is far more serious as there is a possibility of the blade coming loose with potential disasters.

The thread will have to be checked to see if it is not stripped out, if it is stripped please replace the hex roller complete, as these bolts must be torqued up to the correct tension.

 

if you have any further queries contact me

 

regards

Tech Support

[High Scale]

Thanks for the reply, I did suspect the bearing boss but wasn't totally sure, the coughed out bolt comes from the feed rollers, the end with the grease nipples that I do grease regularly, but as there is play/movement in the rollers that would explain the bolt falling out.