Deckel FP3NC help needed with gearbox lubrication pump

[Ditch31]

Hello from Australia. I have recently bought a Deckel FP3NC machine that had a issue with the original controller. I am retro fitting with a Small PLC and motion controller but i need help to program how the lubrication pumps are too work. I know the lube pump for the slideways are generally pulsed for a short amount of time per so many minutes of running. But can somebody with a Deckel tell me how the pump that supplies oil upto the gearbox and spindle works. ie. does it run all the time or does it run on start up for a short time to fill the gearbox then stop. If I run it for too long it empties the reservoir tank before it starts to return back to the tank via the return hose. Once the machine stops and sits for a while the oil all returns back to the tank. Hopefully someone can give me a description on how it originally should have worked so I can program the same operation into the PLC I am using. Thanks in advance for your help.

 

[blakelyj2]

Can you take a picture of the pump in question? There are a few different types of pump out there for machine tool lubrication systems, generally one is continous, one is Singe line resistance, and one is positive displacement injection. Each one works a little differently, but If I can see the pump and its model number information I can probably figure it out for you.

 

[rklopp]

Hello from Australia. I have recently bought a Deckel FP3NC machine that had a issue with the original controller. I am retro fitting with a Small PLC and motion controller but i need help to program how the lubrication pumps are too work. I know the lube pump for the slideways are generally pulsed for a short amount of time per so many minutes of running. But can somebody with a Deckel tell me how the pump that supplies oil upto the gearbox and spindle works. ie. does it run all the time or does it run on start up for a short time to fill the gearbox then stop. If I run it for too long it empties the reservoir tank before it starts to return back to the tank via the return hose. Once the machine stops and sits for a while the oil all returns back to the tank. Hopefully someone can give me a description on how it originally should have worked so I can program the same operation into the PLC I am using. Thanks in advance for your help.

My 1986 vintage FP2NC only pumps oil to the vertical head upon startup, with a handful of pulses. The rest of the time, the drivetrain is splash lubricated. The gearbox pump does not pulse when in horizontal mode.

 

[tomp]

My old 84 FP3NC had one central lube pump. Gearbox was filled to the red line in sight glass with a gear box oil.