Belt Sander Advice

TheFew · 8 Sep 2020 at 15:30

hello,

I am new to the exciting world of belt sanding and recently bought myself a bosch pbs 75 a belt sander.

The device has a belt self alignment mechanism that should ensure that the belt is in the correct spot.

Sadly however, when doing some initial sanding the belt seems to have tracked towards the inside of the device and has begun to fray.

Is this likely to be an issue with the device and how it is set up or an operator error whilst sanding?

Thanks for your views.

ANDARIAL · 9 Sep 2020 at 10:26

Replace belt if too frayed
Start machine in bursts and adjust belt with the knob on the side until belt is centred or slightly further away from the closed side
Keep checking periodically when in use

EDIT seems like it does not have the `normal`knob
have a look at this link (there is a screw you can adjust
https://www.tooled-up.com/artwork/ProdPDF/PBS75A_manual.pdf

TheFew · 9 Sep 2020 at 19:27

Thanks. I think i was too hopeful in thinking the belt would not need adjusting in use.

ahar · 10 Sep 2020 at 09:40

Hmm, the marketing blub says "Manual belt alignment is not required as the belt is automatically held in the correct work position while sanding" so that suggests that it wouldn;t need alignment in use.

My old belt sander needed fiddling with alignment very often, but it didn;t have the self alignment mechanism.

ANDARIAL · 10 Sep 2020 at 10:01

They `should not`require adjusting in use but best to keep an eye on them especially if you are on you last belt in the shed

TheFew · 10 Sep 2020 at 13:11

To be honest the belt started shredding within minutes of first use.

I was wondering if these things need to be kept flat with respect to the wood you are sanding of it they are OK to be used on edges etc..