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Getting at the FP3 powerfeed gears

muffins

Plastic
Joined
Feb 15, 2022
Hello everyone.

I am happy to be a new member here and pleased to say that I have recently picked up a Deckel FP2 and FP3 in good condition.

There are however a few snags to get through.

Right now I am trying to get at the FP3 knee powerfeed selector gears. If you look at the component diagram below you will see a little part labeled 2700-1317, which balloons out to assembly 23. I think this part is worn, causing the one crown gear to engauge a little bit in the idle start and creating a "tick tick tick" noise as the powerfeed shaft spins around. Now it's great that I have the spare parts catalog with the exploded diagrams, it has helped figure this out. But the thing is it does not detail the castings, so understanding where the assemblies fit in them has been a challenge. The last thing I did to try get access to this little part was move the saddle almost off its slides to see if there was an access hole in the knee. There was not. Now I think I may have to take the knee off entirely to see if there is an access hole behind it. Has anyone taken one of these apart before and can possible advise on the next step to do?
FP3 powr feed selector.jpg

The clue that this part is making the noise is that when the selector gears shift downwards to engage the bottom gear the noise disappears completely.
 

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AlfaGTA

Diamond
Joined
Dec 13, 2002
Location
Benicia California USA
Access to those gears that drive the vertical slide up or down , and power the "X" axis lead screw is through the rear of the vertical casting.....
Must take it off the machine to gain access.....

There is a sheet steel cover plate on the rear of the vertical casting that once removed will give you access to the gearing you seek.....

This is a job that requires lifting equipment.
Easiest if you first remove the table and "X" axis slide although it can be done with those parts still intact, but as a new guy with this machine suggest the more through tear down...
Besides it will give you a chance to inspect the "X" slide and gib.

To get the vertical slide off, Loosen the retaining bolts on the flat plate gibs on the back of the vertical box ways.....
Remove the way wipers from the front of the "Y" slide (this will give a bit more clearance.
Remove the vertical way wiper on the top of the vertical slide.

Loosen the side gib on the vertical box way (operators side)

Attach a lifting line to the casting....Crank the "Z" axis to the top of travel.....Might need to remove the power feed trip stops for the Z. Believe there is also a hard stop block (FP3 depends of build date)

Move the "Y" slide as far to the rear as possible (again remove the power feed trip and hard stop plates. If there is a plug to blank off the horizontal spindle, remove it.
Lift using the hand wheel and your crane ....be sure to take the weight as you go
You will get to the limit of the vertical screw...Keep going but don't allow the slide to bang against the screw nut as it gets to the limit...keep the weight on the crane (prevents damage to the bronze nut for the vertical screw)

Once off the nut you can lift the entire vertical slide up and out away from the main casting (remove the rear plate gibs to allow this) and off the machine...Of course you need enough lift in the original setup to allow all this....

Cheers Ross
 
Joined
Jan 15, 2005
Location
The Netherlands
Is your machine running the right direction ??
Powerfeeds on a Deckel only work when the motor is running the right direction
In reverse they make a clicking noise sometimes
Another problem often is broken tapered pins Tha cause is often incorrect shearpins or a coulission to the end of travel because of missing stopdogs
A bitch to remove a broken shearpin if you cannot get to see where it is

One more thing to remember If you take the slide off
When reassembling carefully guide the keyway from the smooth shaft with keyway into the key in the hole
The little notch on the key cannot hold the weight of the assembly

Peter
 

ballen

Titanium
Joined
Sep 25, 2011
Location
Garbsen, Germany
Now I think I may have to take the knee off entirely to see if there is an access hole behind it. Has anyone taken one of these apart before and can possible advise on the next step to do?

The "search" function at the top of this page will provide a lot of detailed information. For example here is one thread with some detailed photos of an FP2 teardown. It is worth spending a few hours reading through some of these threads, because it will save you much more time than that in your own repairs.

FP2 vertical table and support tear-down and reassembly

I suggest that you proceed cautiously to avoid doing any harm. Fortunately there are some very experienced people here (like Peter and Ross) who give very good advice!

Cheers,
Bruce
 

muffins

Plastic
Joined
Feb 15, 2022
Thanks for the responses guys, you have given me valuable insight into this effort. I haven't had much time to continue the rebuild at the moment but when I get around to it I'll post my progress here.

Peter, the machine was running in the right direction. Also when turning the knee handle to move the Z axis without the powerfeed lever engaged it would also make the noise.

I will be careful with this job, I'd like to keep the machine a long time.
 
Joined
Jan 15, 2005
Location
The Netherlands
Thanks for the responses guys, you have given me valuable insight into this effort. I haven't had much time to continue the rebuild at the moment but when I get around to it I'll post my progress here.

Peter, the machine was running in the right direction. Also when turning the knee handle to move the Z axis without the powerfeed lever engaged it would also make the noise.

I will be careful with this job, I'd like to keep the machine a long time.
 
Joined
Jan 15, 2005
Location
The Netherlands
If it is making that clicking sound when turning the knee handle manually it probably is something else
perhaps the shearpin in one or both of the oneway clutch is torn
This can happen if you put put in a to strong or long shearpin
No fun job when thats what it is

peter
 








 
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