canterburyclocks
Plastic
- Joined
- Jul 3, 2010
- Location
- Melbourne Australia
I recently read a post about lubrications issues on a Haas
I will let you know of my experience
Purchased a near new Haas OM2a mill had not even done 200hrs
The mill had a small battery operated grease pump on the side
After a short period of time the grease pump failed ( plastic housing cracked ?? ) and Haas for some reason could not supply another unit.
I purchased a hand pump and used a high quality Kluber grease recommended by a CNC expert. The small lubrication line burst after a short period. I had a feeling that something was not right as the original pump had cracked and now the line. The force used to push the grease seemed excessive.
The mill is not a production machine . I use it for my hobby/ business . Since I have had it I have done less than 2000 hours over 6 years. Serviced the machine 3 times . Spindle belt failed twice ?? Every time I asked is the lube system working and was told Yes yes yes.
I recently moved to a workshop double the size and can now get to my machinery properly. I decided to make sure that the system is working . Pulled all the covers off etc and got the service tech to come again. We spend 4 hours together and the conclusion
No grease getting to any ball screw or rail.
Haas had used fittings that had only 3 threads that screws into the plastic block on the linear rails. The connection also had a push in fitting for the copper lube line.
Grease was just coming out around the fittings and most of the lines seemed glogged with old grease that compressed air could not shift.
I have had to strip the hole machine down to get to the linear rails , ball screws etc to replace every fitting line etc.
I have upgraded the system so that there are three lube lines running to my grease pump.
To rub salt on my wounds while lifting the carriage off the rails I accidentally picked up the ball screw. BENT LIKE A BANANA.
The ball screw is bit longer than needed so I cut the end and machined it. Seems ok
Waiting on so more lube fittings to complete the job.
IF you have a small Haas office mill I would be checking that the lube system is working the fittings / grease may not be right
I will let you know of my experience
Purchased a near new Haas OM2a mill had not even done 200hrs
The mill had a small battery operated grease pump on the side
After a short period of time the grease pump failed ( plastic housing cracked ?? ) and Haas for some reason could not supply another unit.
I purchased a hand pump and used a high quality Kluber grease recommended by a CNC expert. The small lubrication line burst after a short period. I had a feeling that something was not right as the original pump had cracked and now the line. The force used to push the grease seemed excessive.
The mill is not a production machine . I use it for my hobby/ business . Since I have had it I have done less than 2000 hours over 6 years. Serviced the machine 3 times . Spindle belt failed twice ?? Every time I asked is the lube system working and was told Yes yes yes.
I recently moved to a workshop double the size and can now get to my machinery properly. I decided to make sure that the system is working . Pulled all the covers off etc and got the service tech to come again. We spend 4 hours together and the conclusion
No grease getting to any ball screw or rail.
Haas had used fittings that had only 3 threads that screws into the plastic block on the linear rails. The connection also had a push in fitting for the copper lube line.
Grease was just coming out around the fittings and most of the lines seemed glogged with old grease that compressed air could not shift.
I have had to strip the hole machine down to get to the linear rails , ball screws etc to replace every fitting line etc.
I have upgraded the system so that there are three lube lines running to my grease pump.
To rub salt on my wounds while lifting the carriage off the rails I accidentally picked up the ball screw. BENT LIKE A BANANA.
The ball screw is bit longer than needed so I cut the end and machined it. Seems ok
Waiting on so more lube fittings to complete the job.
IF you have a small Haas office mill I would be checking that the lube system is working the fittings / grease may not be right