December 18, 2018, 02:08:11 PM
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 fanuc Grease Quesitons


Author Topic:  fanuc Grease Quesitons  (Read 360 times)

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December 06, 2018, 02:46:55 AM
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jariuscs


Hello            :help:

We have 2 fanuc robots at our shop, and i recently noticed they are both due for a grease change.  I have the manual for both robots, 1 is a R2000ib/125L and the other a R1000iA/100F.  I'm wondering how much grease i should order and from where?  basically does it come in grease gun tubes or 5 gallon pails?  and is my best bet getting it from fanuc or another company?  I am out of Canada, Manitoba if that changes anything.

thanks in advance.

Linkback: https://www.robot-forum.com/robotforum/index.php?topic=29922.0

Today at 02:08:11 PM
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December 06, 2018, 09:08:05 AM
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dofrey


At my place it is more worth it to get it from Fanuc because if someone else has to order it trough Fanuc they pay the same at Fanuc and will add you something to your price.

December 06, 2018, 07:41:58 PM
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SHIFT_Lock


Ours came in 5 gallon pails and we have a pneumatic grease gun setup that sits on top of it. Your manuals should tell you how much grease each robot will take. I didn't get much hands on with this part of our shutdown maintenance but I believe there is a "feed" and a "dump" fitting. You loosen the dump fitting and attach a hose going to an empty pail and pump new grease in the other end until you can see new grease coming out of the dump. But lets see if someone else can chime in to verify.
"I could tell that my parents hated me. My bath toys were a toaster and a radio."

December 07, 2018, 12:51:51 AM
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chris051873



i also think that each axis has to be in a certain position, but i am also uncertain.

December 07, 2018, 01:36:54 AM
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SHIFT_Lock


Ours came in 5 gallon pails and we have a pneumatic grease gun setup that sits on top of it. Your manuals should tell you how much grease each robot will take. I didn't get much hands on with this part of our shutdown maintenance but I believe there is a "feed" and a "dump" fitting. You loosen the dump fitting and attach a hose going to an empty pail and pump new grease in the other end until you can see new grease coming out of the dump. But lets see if someone else can chime in to verify.

i also think that each axis has to be in a certain position, but i am also uncertain.
[/quote]

There is a certain position and usually I believe it just lining up the tick marks on the robots putting each axis at a 90 degree angle. There is also a "workout" needed to be done where each axis needs to be jogged back and forth a certain degree each way for a certain period of time. All of that should be covered in the manuals.

December 07, 2018, 08:26:08 AM
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ClaudiuA


Uh, as a long time greaser of these puppies, I can only say that you people are overthinking it.

Set the robot in a comfortable position for yourself, release the OUT plug, install the IN grease nipple if there isn't one already - I think R2000 has them already installed, some smaller robots only have plugs -, pump until clean grease pushes out through the outlet. Do not use high pressure for pumping. Use a handpump if possible, otherwise pneumatic set on low pressure. Do not hurry. Do not make a mess or you'll get a lot of stink eyes.

You use VigoGrease REO for all FANUC robots, with a couple of exceptions. 16 Kg Pails generally.

Exercise the robot after you finish greasing +/- 10 degrees on each greased axis before installing back the plugs to get rid of the built up pressure. Some grease will probably push out. Clean it off and install the plugs. Congrats. Your robots will live happily for another year.

Pay close attention to the used grease coming out, especially at the start. Watch for metal shavings. If you notice them, be prepared for a reducer swap somewhere in the future.
« Last Edit: December 07, 2018, 08:28:20 AM by ClaudiuA »

December 07, 2018, 07:35:24 PM
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SHIFT_Lock


Hey I was pretty close  :uglyhammer2:

Today at 02:08:11 PM
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December 08, 2018, 01:59:34 AM
Reply #7
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cobenson



Maybe I am old school, but I like to follow Fanuc's recommended greasing positions. They are there for a reason. Or at least the ones that have any angle besides arbitrary.

As far as when you are finished, I have never seen a robot that they only want you to move +- 10 degrees only. Not to mention that it also depends on speed and time.

I do agree with using a hand pump and taking your time. But I believe you may need to refresh your procedure. Along with based on robot conditions, age or robot, usage, etc. a yearly PM may or may not be needed.

December 08, 2018, 04:48:39 PM
Reply #8
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Robo_Eng_13


Also "yearly" is based on 2000 operating hours. If you run 24/7, you need to increase the PM schedule by a factor of 4

December 08, 2018, 07:34:06 PM
Reply #9
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SHIFT_Lock



Some of our robots are going on 5-6 years with the original grease  :no1: We keep bringing it up that it needs done on shut down but here we are again just a couple weeks from shut down and nothing has been ordered or planned out for it.  :wallbash: I guess they will realize our concern after we start having some major failures and costly repairs/downtime.

December 10, 2018, 09:01:27 AM
Reply #10
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ClaudiuA


Uh, as a long time greaser of these puppies, I can only say that you people are overthinking it.

Set the robot in a comfortable position for yourself, release the OUT plug, install the IN grease nipple if there isn't one already - I think R2000 has them already installed, some smaller robots only have plugs -, pump until clean grease pushes out through the outlet. Do not use high pressure for pumping. Use a handpump if possible, otherwise pneumatic set on low pressure. Do not hurry. Do not make a mess or you'll get a lot of stink eyes.

You use VigoGrease REO for all FANUC robots, with a couple of exceptions. 16 Kg Pails generally.

Exercise the robot after you finish greasing +/- 10 degrees on each greased axis before installing back the plugs to get rid of the built up pressure. Some grease will probably push out. Clean it off and install the plugs. Congrats. Your robots will live happily for another year.

Pay close attention to the used grease coming out, especially at the start. Watch for metal shavings. If you notice them, be prepared for a reducer swap somewhere in the future.

Maybe I am old school, but I like to follow Fanuc's recommended greasing positions. They are there for a reason. Or at least the ones that have any angle besides arbitrary.

As far as when you are finished, I have never seen a robot that they only want you to move +- 10 degrees only. Not to mention that it also depends on speed and time.

I do agree with using a hand pump and taking your time. But I believe you may need to refresh your procedure. Along with based on robot conditions, age or robot, usage, etc. a yearly PM may or may not be needed.
[/quote]
To be perfectly frank I don't even go as far as that most of the time. +/- 10 degrees a few times is plenty if you've gone low pressure and allowed enough time before you put up the plug. After pointlessly exercising robots for minutes on end, I ended up ditching most of that as well. 5 years, no problems, results speak for themselves on this. Only time that backfired was when a M600 peed all over me from the J4 reducer.
Of course, I don't mean LR Mates or M10s/20s with the oil change. In those cases I fully recommend following the procedure as it makes things easier. For some M410s and M900s you need to actually set the correct position to have access to the outlet, but not for much else. And I swapped out enough reducers - not due to maintenance issues mind you - to see why it doesn't really matter how you set the robot.
But with some robots in tight cells or on very high pedestals, we need to make concessions. I have a few robots where following the position in the maintenance manual actually makes the maintenance impossible  :uglyhammer2:


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