Member postings for Martin Standish 2

Hi Martin,

Chipping in for you. I have a S7 PXF with gear box. The way I remove the apron is to fully take the lead screw out as it passes via the half nut and the lead screw drive gear with key to transfer power to the cross slide. You need to remove the gear from the lead screw attach to the gearbox. To do this you have to remove the gears assembly and gear train that provides input to the gear box. Once done you can slide the lead screw out towards the tail stock provided you remove the lead screw attachment assembly on this side. If you have the type where you only have to remove 2 socket screw then its easy and the whole assembly can come off. However if you have the type that have 2 additional peg/dowels to stabilised this part then its sometimes difficult to remove it without applying to much force that can potentially damage this area. In this case the lead screw has to be remove toward the headstock side provide you take off the lead screw hand dials, but this will require you the remove the whole gearbox assembly to facilitate lead screw withdrawal towards the head stock side.

Once done you can proceed to disassembling the PXF apron which is the easy part. It comes off after removing the 4 top allen bolts and will drop down - be careful here as its heavy.

Hope this helps.

Raphael

Edited By RAPHAEL VAL GOLEZ 1 on 11/12/2019 13:35:06

Edited By RAPHAEL VAL GOLEZ 1 on 11/12/2019 13:39:34

Edited By RAPHAEL VAL GOLEZ 1 on 11/12/2019 13:40:29

I don't have the gearbox model but I can assure you the lead-screw needs to be removed to the tailstock end before the PXF apron can be removed.
I had to do that when one of the screws in the dog clutch mechanism decided to make a break for freedom. Fortunately it only damaged itself and nothing else.

Martin,

It would be a great help to you to lay your hands on a Genuine Myford handbook for the QC gearbox.. This details how to fit the gearbox to various typed of S7. The instructions are fully detailed and should be easy to reverse..

Best regards

Eric