Thanks. Got an account at Screwfix. I assume that's the size I need ? 3mm isn't too thick is it ?£10 will set you right
Easyfix Steel Flat Washers M20 x 3mm 50 Pack - Screwfix
Order online at Screwfix.com. BZP. Suitable for metric screws. FREE next day delivery available, free collection in 1 minute.www.screwfix.com
all sorts on ebay if you want/need to go thinner
Yep - the bolts are 3/4UNF which translates to 19mm. It's not structural, so 20mm will do fine.
I don't know, I haven't put that much wear on mine yet .
could use a longer bolt and a locknut and do away with washers, some 3cx machines had it standard and very easy to adjust i thought.Yep - the bolts are 3/4UNF which translates to 19mm. It's not structural, so 20mm will do fine.
I don't know, I haven't put that much wear on mine yet .
seriously though, 3x3mm each side was correct on mine with new pads. If you find you need a smaller adjustment, you'd only need four half-thickness washers to shuffle through the stack. (hope that made sense).
Lot simpler and less hassle with washers and the slides don't need to be tight anyhow
Yes, it's just that 3mm sounded as if it might be a bit thick if the adjustment, according to the service manual, is to be down to 1/16 " (1.5mm)
Thanks for that. Very useful.
Yes, that makes sense. Thank you. Putting a spring washer is going to complicate the job I suppose. It's just that as far as I can tell there is nothing to stop the bolts coming loose. Maybe you could put some Loctite or some other thread locker on or am I going completely over the top here ?I don't know, I haven't put that much wear on mine yet .
seriously though, 3x3mm each side was correct on mine with new pads. If you find you need a smaller adjustment, you'd only need four half-thickness washers to shuffle through the stack. (hope that made sense)
Now that makes sense.
True.the slides don't need to be tight anyhow
All true. And this machine is only used occasionally nowadays. We're both slowing down here.
Sorry, but 3/4" UNF is just that ... a unified fine threadYep - the bolts are 3/4UNF which translates to 19mm. It's not structural, so 20mm will do fine.
I don't know, I haven't put that much wear on mine yet .
seriously though, 3x3mm each side was correct on mine with new pads. If you find you need a smaller adjustment, you'd only need four half-thickness washers to shuffle through the stack. (hope that made sense).
Yikes - no I didn't mean the threads were compatible, just that M20 washers would be ok on the dipper wear block bolts.
ah right
....
OTT
thats what i was meaning but you have put it so much better than my attempt. one or two of the 3cx i drove had them and it was simple to adjust them and no washers to remove and save.ah right
personally I'd go for some 3/4 UNF set screws and add say 6mm(1/4") on the length you spec.ed .... put some half nut lock nuts on them...
much less faff to adjust ... pinch up the wear pad adjustment and back the bolts off 1/2 a turn, then lock off with the half nuts
View attachment 39293
yeh waaaay easier and much simpler ..... you'd need quite some vibration or other force to back off the lock nuts unintentionally
Makes me wonder why Mr. Bamford's men didn't do it like this in the 1st place.ah right
personally I'd go for some 3/4 UNF set screws and add say 6mm(1/4") on the length you spec.ed .... put some half nut lock nuts on them...
much less faff to adjust ... pinch up the wear pad adjustment and back the bolts off 1/2 a turn, then lock off with the half nuts
