[rszemeti]

So, having (finally) fired up this VF1, we are getting a bit of oil dripping from sround the spindle nose. I suppose it cuold just be leak-through as it has been standing a while.

If it doesn't slow up, is it an easy job to remove and replace the spindle nose oil seal? Standard lipped seal or some Haas special?

[miljnor]

i think (and don't quote me on this) but its a labyrinth type seal and they (I believe) are not fun to replace.

never done one. But I've had machines sit for a few months and they collect oil in that seal and stop leaking within a very short time. I think the air blast that is normally going thru the spindle cleans all of it out.

[rszemeti]

There is an air blast going through the spindle? Not sure there is on ours, air consumption is quite low. There is a oil cooler and pump, with a couple of copper oil ines running down to the spindle, i assumed it was oil cooled, rather than air-blast cooled.

[haastec]

For machines which have been sitting for a while, it is recommended that you run the "Spindle Run In Program". This program should have shipped with your machine and will run for about 2hrs.

When the machine sits for extended periods of time, the oil that is mixed with the air and pumped through the spindle for cooling and lubrication will accumulate at the bottom of the spindle housing. The run in program will run the spindle at different rpm's and will pause to let the spindle cool down which will allow the accumulated oil to drain.

After this program has run you should see a significant decrease in the amount of oil dripping from the spindle but a few drips here and there will be normal.

[Geof]

I have several Haas machines and they all drip now and then. After a full days work they will probably put one drop on the vise overnight.

[miljnor]

I would love to see this "run in" program...I have purchased several new machines and have never seen it...maybe the outlet deletes it?

anywhere to download it?

[DaOne]

Here is the one that was on my machine...

O02021 (Spindle Run-in) 
(This Program must be run prior to) 
(machine use at time of machine) 
(installation. Cycle time: 2 hours.) 
(This program can be used for all) 
(spindle types. Adjust spindle speed) 
(override depending on maximum) 
(spindle speed of machine: Set) 
(override at 50% for 5,000 rpm) 
(machines, set at 100% for 7,500) 
(& 10,000 rpm machines, and set at) 
(150% for 15,000 rpm machines.) 
N100 
S750 M03 
G04 P600. 
S2500 M03 
G04 P600. 
S5000 M03 
G04 P900. 
N200 
M97 P1000 L15 
M97 P2000 L15 

M30 

N1000 
S7500 M03 
G04 P30. 
S500 M03 
G04 P150. 
M99 

N2000 
S10000 M03 
G04 P30. 
S500 M03 
G04 P150. 
M99

Don't see any harm posting something that is just a bunch of spindle speed settings followed by a delay. This is a macro but it wouldn't be hard to convert it to simple G-code

[Matt@RFR]

Here ya go. It's on the USB thumb drive that comes with the machines.

%
O02021(Spindle Run-in)
(This Program must be run prior)
(to machine use at time of)
(machine installation.  Cycle)
(time: 2 hours.)
(This program can be used for all)
(spindle types. Adjust spindle)
(speed override depending on)
(maximum spindle speed of)
(machine: Set override at 50% for)
(5,000 rpm machines, set at 100%)
(for 7,500 & 10,000 rpm machines,)
(and set at 150% for 15,000 rpm)
(machines.  9-21-99)
N100
S750M3;
G04 P600.;
S2500M3;
G04 P600.;
S5000M3;
G04 P900.;
N200
M97 P1000 L15
M97 P2000 L15

M30;

N1000
S7500M3;
G04 P30.;
S500 M3;
G04 P150.;
M99;

N2000
S10000M3;
G04 P30.;
S500M3;
G04 P150.;
M99;
%

[DaOne]

Here is the warmup if anyone needs that too.

O02020 (Spindle Warm-up)
(This program should be run prior to) 
(machine use if machine has been idle) 
(for more than 4 days.) 
(Cycle time: 20-minutes.) 
(This program can be used for all) 
(spindle types and may be used daily) 
(for spindle warm-up prior to high) 
(speed spindle use. Adjust spindle) 
(speed override depending on maximum) 
(spindle speed of machine: Set) 
(override at 50% for 5,000 rpm) 
(machines, set at 100% for 7,500) 
(& 10,000 rpm machines, and set at) 
(150% for 15,000 rpm machines.)  
S500 M03 
G04 P200. 
S1000 M03 
G04 P200. 
S2500 M03 
G04 P200. 
S5000 M03 
G04 P200. 
S7500 M03 
G04 P200. 
S10000 M03 
G04 P200. 
M30

[miljnor]

kool

I appreciate it!

[rszemeti]

I have several Haas machines and they all drip now and then. After a full days work they will probably put one drop on the vise overnight.

This was more like a teaspoonful in 5 minutes, but it had been sitting a few months. I few drops a day I would ignore, but this was dripping a fair bit more than that.

[JoBwan]

Tanks guys for posting these programs. Awesome information to have on hand!!!

[miljnor]

did the warm up fix the dripping ?

Inquiring minds want to know

[rszemeti]

It turns out .. there is no seal in the spindle nose.

The spindle itself is lubed by air/oil mist. The cooler and pumps is for the transmission not the spindle cartridge.

The dripping was most likely caused by occasional activation of the manual pump overide whilst the machine was in storage. Once we ran it a while, there is much less dripping, and it must drip once in a while as thats the only way for the excess oil to get out!

So, thnaks for the wamrup progs, we stored those for a rainy day, it seems everyting is perfectly normal