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Thread: Bosch GEX 125 AVE ROS
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27th September 2021, 04:09 PM #1Woodworking mechanic
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Bosch GEX 125 AVE ROS
I bought this in 2015 based on reviews and it was one in their Professional Series.
It’s had sporadic work over the years. Today I decided to give my front veranda floor (Tallowwood) a sand down as the finish I used previously is a POS and worn very badly. It is really only a coating over the wood with no soak in at all. I took the advice of a paint supplier.
All was going swimmingly
93483F99-934A-423B-B842-A42CAE6A8478.jpg
until the sander literally fell apart. The shaft that connects the pad to the sander is a press fit in a bearing and it just worked it’s way out of the bearing. (The lower part in diagram labelled 826)
6AB3C973-D0A3-4811-AAB6-D8ED784BE663.jpeg
Trying to fit it back in shows that it must have been slipping for a while as it’s a ‘thumb” press fit in and a ‘thumb/forefinger” pull out and shows signs of wear.
I thought I could buy that part and a bearing but oh no, you have to buy a complete assembly which is half the cost the the ROS itself and requires a total dismantle and the unit pressed off the armature - part 826.
So I gave the parts a clean with acetone and applied some Loctite 620. I’ll give it 48 hours and a retest.
I’m not impressed and wonder, as it’s a Professional tool, how long it would have lasted a professional using it day in and day out.
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27th September 2021 04:09 PM # ADSGoogle Adsense Advertisement
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27th September 2021, 04:34 PM #2
G'Day Peter, If you're still chasing the part...
Give De Rossi Industrial at Lidcombe a call as they can get and repair Bosch...
De Rossi Industrial
Cheers, Peter
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27th September 2021, 04:48 PM #3China
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Great timing I was thinking of buying one, might go a bit more high end.
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28th September 2021, 08:57 AM #4GOLD MEMBER
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There should be a locking cap screw that goes through the whole assembly and into the end of the shaft, that’s what the Festool ones have, it’s easily removed to change the pad. Maybe look over the schematic and see if it could be missing?
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28th September 2021, 09:16 AM #5Woodworking mechanic
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It’s the shaft that the pad cap screw screws into that came out of the bearing. It’s an interference fit in the bearing as you can see in the diagram. The cap screw and pad were securely locked into that shaft when it let go.
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28th September 2021, 09:23 AM #6GOLD MEMBER
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Ouch!!! I have had mine for a while now too
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