SX3 milling machine

[Peter FarrowParticipant @peterfarrow42954]

Hello Everybody. I would appreciate any information or experience that SX3 users/owners have on the following. I have a Sieg SX3 mill with the 1000W brushless motor supplied by ARC in 2013. To date I have had no problems and I have been pleased with it. A couple of days ago I had completed some light milling and had fitted a “wiggler /sticky pin” in the collet to re-centre the spindle and on pressing the start “button” to centre the probe there was alarming noise from the motor followed by an immediate loss of electrical systems on the mill. The noise was if the motor had jammed. Inspection indicated no issues with the spindle or drive belt and the motor rotated smoothly by hand. The 13amp plug fuse was ok as was the 15amp motor control board fuse, but the 10amp main supply inlet fuse had vaporised. There was no indication of any overheating wiring or components. I replaced the blown fuse with a 5amp quick blow fuse and test ran the machine – no issues, everything ran/operated perfectly. Replaced main fuse with 10amp quick blow fuse and boxed up. A Belkin anti-surge protection unit is fitted to the 230v supply socket. My question is – is this indicative of troubles ahead? Any information of similar experiences would be appreciated.

Thanks

Peter

[Peter FarrowParticipant @peterfarrow42954]

Blown main supply fuse

[Paul LousickParticipant @paullousick59116]

Peter,

Do a serach on this site for SX3 as there are previous posts about problems. I used to have an SX3 which was great until it started to have problems with the main motor control board and the power feed board and I got rid of it. New controller boards are not cheap if you can get one . Now have a mill with a standard AC motor and gearbox instead of variable speed DC.

Paul

[Dave HalfordParticipant @davehalford22513]

Fuses do sometimes give up all on their own, not necessarily due to an electrical fault it could have been just vibration for example.

[Peter FarrowParticipant @peterfarrow42954]

Paul – thanks for the reply. I did carry out a search on this site prior to posting, but didn't find anything specific to this issue.

Dave – You become concerned when fuses blow for no obvious reason. I had made an enquiry prior to the posting and the response was that one blown fuse in 7 years was good going and if they become much more frequent then you may have a problem. Ties in with your thoughts.

Peter

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