07-31-2015, 04:33 AM
I was getting close to actually using my new (old) mill now that my phase converter is working, thought I'd better change the oil so I bought a drum of suitable oil. There's a little hand pump under the table with a system of tubes to lubricate the bowels of the machine. So I filled the reservoir and disconnected the feed line to get some oil through the pump...nothing. Took the table off the machine to access the pump.
[attachment=11505]
Pulled the pump apart and it was not only full of crusty gunk but also the piston cups (bit like a brake cylinder) appear to have shrunk and just slop around in the bore, also there's a little ball valve on the inlet side and the spring behind the ball has disintegrated. I picked up some square-section 'o'rings, was going to make a new piston for the pump but then I got called in to work 2 extra shifts so that's on hold til next week.
Got up after a couple of hours sleep this morning and decided to clean out the rest of the oil feed system; took off all the tubes and the manifold and cleaned them through with compressed air the pushed nice clean oil through them with a syringe.
[attachment=11506]
I noticed that the drain system that channels coolant down to the well in the base of the machine lookad a bit gunked up, so i pulled the header part sits behind the table off. 'A bit gunked up' turned out to be very optimistic; it was completely choked the whole way through the passageways, which led to the swivel base under the table coming off.
[attachment=11507]
[attachment=11508]
Cleaned this all out before I ran out of oomph and came in for pizza. My normal working week starts tomorrow so this will have to wait for next days off. I think the next step will be to remove the knee, then I may as well strip it all and give it a fresh coat of paint......
The first oil feed pipe that comes from the pump to the manifold has been kinked and squashed, I spent about 2 hours yesterday afternoon before going to work, driving around trying to source some 5/32 aluminium tubing and olives. Don't want to put it back together as is, even though I can still blow air through it.
[attachment=11505]
Pulled the pump apart and it was not only full of crusty gunk but also the piston cups (bit like a brake cylinder) appear to have shrunk and just slop around in the bore, also there's a little ball valve on the inlet side and the spring behind the ball has disintegrated. I picked up some square-section 'o'rings, was going to make a new piston for the pump but then I got called in to work 2 extra shifts so that's on hold til next week.
Got up after a couple of hours sleep this morning and decided to clean out the rest of the oil feed system; took off all the tubes and the manifold and cleaned them through with compressed air the pushed nice clean oil through them with a syringe.
[attachment=11506]
I noticed that the drain system that channels coolant down to the well in the base of the machine lookad a bit gunked up, so i pulled the header part sits behind the table off. 'A bit gunked up' turned out to be very optimistic; it was completely choked the whole way through the passageways, which led to the swivel base under the table coming off.
[attachment=11507]
[attachment=11508]
Cleaned this all out before I ran out of oomph and came in for pizza. My normal working week starts tomorrow so this will have to wait for next days off. I think the next step will be to remove the knee, then I may as well strip it all and give it a fresh coat of paint......
The first oil feed pipe that comes from the pump to the manifold has been kinked and squashed, I spent about 2 hours yesterday afternoon before going to work, driving around trying to source some 5/32 aluminium tubing and olives. Don't want to put it back together as is, even though I can still blow air through it.