Birmingham Ycl 1440gh Manually
Well well, I must revise what I had said a few weeks ago about the Birmingham lathe I bought. I thought it was half decent, but it is officialy a piece of crap. I was cutting a 7/16 coarse thread at 300rpm, the split nut lever didn't disengage for some reason.
Birmingham Ycl-1440gh Manual
BIRMINGHAM ALL GEAR HEAD BENCH LATHE WITH FLOOR STAND MODEL: YCL-1340GH FEATURES: LATHE BED IS CONSTRUCTED OF HIGH TENSILE STRENGTH CAST IRON, RIGID STRUCTURE WITH HARDENED AND GROUND WAYS. PRECISION MAIN SPINDLE LOADED ON HIGH QUALITY PRECISION BEARINGS (2ea) 0. 8 SPEED HEADSTOCK WITH 70 TO 2,000 RPM. Innovative Machinery located in Madison, Wisconsin - machine tool dealer, specializes in used CNC, manual machine tools and fabricating equipment. Birmingham YCL-920BD Belt Drive Lathe Home New Equipment Birmingham Lathes. Birmingham YCL-920BD Belt Drive Lathe. Used 14' Swing 40' Centers Birmingham YCL-1440GH ENGINE LATHE, D1-4, 16 SPD, 1-1/2' Bore, 3HP for sale - 19186 by Machinery Values Inc. In Harrison, New Jersey.
So when I saw that it wasn't stopping I grabbed the carriage lever to crank it back ( as if that would do anything, just a reflex I guess ) but I also switched the lathe in reverse, all within a second and that stopped the lathe just before the tool post was to hit the chuck. That would have been even worse.
I managed to get the split nut lever to move pulling on it like I was trying to lift the whole lathe. So I try to move the carriage, its all jammed up. Humm, yank harder and it moves for a bit and gets tight again. Well 3 teeths on the rack that is used to move the carriage have stripped, the gear inside the carriage that engages with the rack has twisted and has 2 or 3 very bent teeths onto it. And who knows what else there might be screwed up in there. Tomorow I'll call the place I bought it from, see what the say. Hopefully they'll take it back.
I want to get rid of it, but I also don't want to pass it on to someone else who would also only be mad at it. This lathe is supposed to have been made in Taiwan. Anyhow, it defenatly isn't worth the money. If I manage to get some money back from this, I'll get a real lathe. The head (piece that the chuck mounts too)is true to 0.001', but the chuck is out by 0.006'.
I disassembled the chuck, cleaned it, and put it back together IAW the owner's manual. The only problem is that the dowels that the cams lock into on the chuck aren't exaclty on the same plane. The face within lyrics mercedes lackey. I think that this is the problem. Any tips on checking the chuck?
I do apologize for hijacking the forum. I can begin a new thread if desired.
I just figured that the Chinesium lathe questions would get more attention under this thread title. Just a little update.
The model I have is the CT-1440G. I took the whole carriage apart, feed rods, lead screw and all.
The shaft that rides onto the rack to move the carriage had bent by almost.125'. Which is part of what caused it to jam up so bad. I just held it in the chuck and took a long pipe to it and messed until it was straight again. It doesn't bind up anymore. I welded up the bent teeths on the rack and remachined them. It practicly doesn't even show that anything happened. I took the occasion to fix the carriage lock which was no good at all.
Now it works perfect. I checked the possibility of the feed lever engaging when the half-nut is engaged and it can't. Something else happened. Anyhow, I'm looking for a Hardinge HLV-H EM or a good clone. Which is really what I should have bought from the start. I will keep the birmingham though, I just don't plan to do much threading with it, and when I do it will be going towards the tailstock.
Itb242 What kind/brand of chuck is on the YCL1440? How's the backing plate, any good?
The might be the problem right there. Mine came with a 8' Bison 3jaw. ( not sure if its the chuck that usualy comes with this lathe as it had been owned by someone else for a short time ) The Bison runs very good though.
The 4jaw that came with it is JUNK, the sticker on it says HTT I think. The backing plate is horrible also, looks like cast dirt that could crumble at any moment. When a piece of material has a lot of run out when held in the chuck, the chuck or backing plate is usualy the problem.