Hurricane
Well-known member
Might be worth a small amount of grease on the bolts before assembling the plate
Failed to remove the shaft coupling
- Thread starter Lucas Gan
- Start date
Lucas Gan
Active member
OBB
New member
If the removed screws were Allen screws were there perhaps another pair under the first pair?
Or
Is it a tapered key?
Or
Is it a tapered key?
Croftie
Active member
Your not trying to do a 10mm hole in one go are you?
3mm hole then enlarge to 6mm them 8mm then 10mm
penfold
Well-known member
Is there no workshop in the yard who might take pity and let you at a pillar drill?
RAI
Well-known member
That key and key way looks suspicious to me. One or the other could be tapered, either to jam the flange on, or to release it.
I would be tempted to get a drift and hammer to it.
I would be tempted to get a drift and hammer to it.
Lucas Gan
Active member
@OBB I can confirm there is no more screw. And it is not tapered as the end of the shaft is exactly 45mm in diameter.
@Croftie I did stupidity drill 10mm in one go! Not too bad, nearly done now.
@penfold Haven't go to the yard. Just do it at home.
@RAI The key may be useful when reattaching the coupling. But can't remove it in this case.
@Croftie I did stupidity drill 10mm in one go! Not too bad, nearly done now.
@penfold Haven't go to the yard. Just do it at home.
@RAI The key may be useful when reattaching the coupling. But can't remove it in this case.
Lucas Gan
Active member
10mm drill holes are too tight for M10 bolts when the steel plate is attached to the coupling. Maybe because the holes have a bit angle while drilling. Need to buy a 12mm drill bit to make it bigger and try again.
Sticky Fingers
Well-known member
Clearance hole for M10 needs to be minimum 11mm. 12 should be fine.
fisherman
Well-known member
Or use M8
ctva
Well-known member
Ooh, this is getting exciting. Fingers crossed for it working.
You could live stream on youtube or FB...
You could live stream on youtube or FB...
SpottyDog5
Well-known member
I'm excited!
fisherman
Well-known member
I've got extra beer in
SpottyDog5
Well-known member
And popcorn ?
John100156
Well-known member
Stuff the Olympics, if he eventually gets that flange off, I reckon Lucas should be awarded a YBW Gold Medal! No pressure....
No pressure....
fisherman
Well-known member
Let's hope he pulls it off.
Caraway
Well-known member
He'll be shafted if he doesn't.
Lucas Gan
Active member
Unfortunately, it's not coming off. Not even a little movement after 24 hours holding the steel plate with 6 bolts tighten to maximum and heated many times to untouchable hot. I am stuck!
I will just let it continues holding. I am trying to free up the stuffing box to keep using it. The problem is the stuffing box nut also won't move! Frustrating!
I will just let it continues holding. I am trying to free up the stuffing box to keep using it. The problem is the stuffing box nut also won't move! Frustrating!
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fisherman
Well-known member
Remarkable! Does your spacer cover the end of the key? If the keyway is closed then that would prevent movement.
TheCoach
Active member
Good question, from the original photo it looks like the keyway protrudes quite a long way into the shaft so just check the spacer isn't fouling this.
I know its been asked before and you have checked already but have you been able to eyeball down the grub screw shaft to check there isn't a second grub screw? Another way to check would be to use the depth gauge on you caliper to measure down the grub screw hole and check this depth is the same as the flange thickness
Only reason I suggest this is some of the Mills and lathes I have used use an outer grub screw to protect/lock in an inner one.
Keep smiling
Cheers
TC
