Thread: HELP!! New guy, in more ways then one.

Hi all. I'm the new guy. To your fourm, and to "CNC Repair". I just took on a job at a new place as the building mechanic. I repair pumps, heat exchangers, air handlers, chillers, pretty much anything to do with the building. I have been doing this kind of work for almost 20 years. Now, I have been asked to work on the production equipment, "CNC Mechanic". I know very little, if anything about CNCs. Soooo, if you don't mind, I will have a lot of question to ask.

My first question being:
I have a Hardinge CHNC 2 that the turret that holds the tool was setting too high. I took the turret apart, with help from one of the more knowledgeable mechanist. We did pretty good, but, I/we broke the two dowel pins that aline the turret. I was able to get both pieces of one of the pins. On the other one, the bottom piece of the dowel fell down inside on is now setting on top of the gear that turns the turret. So, my qeustion is, how do I get to it? Has anyone ever ran into this problem before?

Originally Posted by 72buick

Hi all. I'm the new guy. To your fourm, and to "CNC Repair". I just took on a job at a new place as the building mechanic. I repair pumps, heat exchangers, air handlers, chillers, pretty much anything to do with the building. I have been doing this kind of work for almost 20 years. Now, I have been asked to work on the production equipment, "CNC Mechanic". I know very little, if anything about CNCs. Soooo, if you don't mind, I will have a lot of question to ask.

My first question being:
I have a Hardinge CHNC 2 that the turret that holds the tool was setting too high. I took the turret apart, with help from one of the more knowledgeable mechanist. We did pretty good, but, I/we broke the two dowel pins that aline the turret. I was able to get both pieces of one of the pins. On the other one, the bottom piece of the dowel fell down inside on is now setting on top of the gear that turns the turret. So, my qeustion is, how do I get to it? Has anyone ever ran into this problem before?

.
use a part grabber either magnet type or type with fingers
24" 2-in-1 Pickup Tool
15 Lb. Capacity Telescoping Magnetic Pickup Tool
........they usually work better than sticky bubble gum or wax on the end of a stick. I have had them since an apprentice. Many machines you can drop a screw and not be able to have room to stick a hand in to grab it

Ditto DMF_TomB



I am going to toss this out...do with it what you like.

Much of the working parts that go into and out of alignment on these machine can be tweaked without dis-assembly. Many items have a specific procedure for diss-assembly, assembly tweaking and the like. If at all possible...I'd try looking at the the manual and/or speak to the manufacturer's service department before diving in and pulling things apart. A simple tweak can turn into a major headache very quickly. Many manufactures are willing and able to help trouble shoot...
Just my .02

Welcome aboard and good luck.

It wasn't a adjustment issue. There was a 25 years worth of crud under the turret that needed to be cleaned out. This is what I found on-line to get me through the process, Rebuilding a Hardinge CHNC Turret - LinuxCNC Support Forum .

Well, I talked to the people at Hardinge and they dont see a problem with leaving the piece in there. But, now that it is back togerther there is a timing issue. When the turret is jog it doen't turn enough to drop into the groves that hold it in place. Any ideas?

Welcome to PM...but for future reference please create topic titles that give some indication of what the topic is about. "Help, new guy, etc" tells us absolutely nothing.

Thanks for the help Milacron .