Flywheel trouble!!

[Daren Marshall]

Please help!! I have a Entech ch25p chipper. The bearings have gone and I need to get the flywheel off to change them. Has anybody got any ideas??

[MATTMOSS]

I have no experience of that machine however, i suspect its bolted together like most others.

Inspect how its bolted together and start methodically unbolting it.

Taking pictures of tricky looking parts before disassembling them can come in very useful.

Sometimes workshop manuals can be found for some machines online or following a phone call to the dealer/parts dept.

Dont panic, its all good fun.

[MATTMOSS]

If you need any spare bolts i have boxes and boxes of stuff i cant put back together! :lol:

[monkeybusiness]

Search Dean Lofthouse on here's posts. He did a full thread on replacing bearings on a Timberwolf 150 (I think, or equivalent Entec). He knows his onions with mechanics and his thread is full of really helpful info. All the Timberwolfs and Entecs are pretty much the same and it will give you a brilliant reference point.

[Gerbutt]

I'd advise taking it to a shop to have it done if you're not sure, it's not very expensive.

[Daren Marshall]

Thanks for all of your help.

I've managed to get it off, and it looks like the rear shaft is welded to the flywheel - is this normal?

The front shaft has sheered off and part of it is still in the flywheel which I cant get out. Other than buying a new chipper (which I can't afford) has anyone got any suggestions please? I've looked into buying a new flywheel and front and rear shafts and its coming out at £1000. I'm hoping there may be some cheaper options out there??

[Gerbutt]

Have you any pics?

 

I'd still take it to someone who knows, they may have seen it all before and ways to solve the problem. My bearings were going quite quickly and it turned out someone in the past had retro fitted the fins a few mm out and that was making it impossible to balance correctly. That meant I had to have a new flywheel, which I was a bit gutted about, but now I love it, and it's earn't way more than it cost.

[Breezeblock]

Thanks for all of your help.

I've managed to get it off, and it looks like the rear shaft is welded to the flywheel - is this normal?

The front shaft has sheered off and part of it is still in the flywheel which I cant get out. Other than buying a new chipper (which I can't afford) has anyone got any suggestions please? I've looked into buying a new flywheel and front and rear shafts and its coming out at £1000. I'm hoping there may be some cheaper options out there??

 

sounds like a botch up job any decent machine shop should be able to do shafts which part of the country are you in

[Shane]

sounds like a botch up job any decent machine shop should be able to do shafts which part of the country are you in

 

Agreed - a few years back when the bearings went on my TW and wore the shaft, I found a local engineering firm who made a new shaft, welded it in and balanced it for £100.00 (that was about 8 years ago mind). It worked fine after that - though I only ever got about 200 hours out of them 'lego' bearings.

Overall really loved that old chipper.

 

Google your local engineers and you will probably save a fair bit.

[Breezeblock]

i have repaired the main shaft on ours twice the second time it got a bit of a redesign as the speed sensor pickup wasn't required and this was the root of all the trouble the bearing fit from standard wasn't particularly good either