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Type: Posts; User: Harri89

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  1. Replies
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    Some plates are with swedish text and one with...

    Some plates are with swedish text and one with finnish :D
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    I checked the hydraulic pressure and it was...

    I checked the hydraulic pressure and it was little bit low, 2-3 bars. I need to get a new pressure gauge and check it again. Now the speed change works better, just need to wait like 5 sec before...
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    I notice that when the feed motor is running now,...

    I notice that when the feed motor is running now, its quieter than before. Last time i filled the knee with new oil to sight glass line.
    I needed to refill it because next time i worked with the...
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    I was testing the spindle speeds and when i...

    I was testing the spindle speeds and when i Change them in order from slow to fast it changes fine, when i jump around with the speed change i get bad gear grinding sound, if i press stop and start...
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    I have an hydraulic schematic in the manual, i...

    I have an hydraulic schematic in the manual, i just cant find the part where it branches to vertical head feed. There is a branch in the schematic for the vertical head counter balance piston and...
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    Got the feed motor back and running, still sounds...

    Got the feed motor back and running, still sounds loud to my ears, the shaking is away and and its quieter than it was.

    I noticed that if i push from the cooling fan the shaft moves axially...
  7. Replies
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    I "welded" (melted) the motor cooling fan and let...

    I "welded" (melted) the motor cooling fan and let it cool and sit for night.270017

    I did a test fit with trued flange and to see the gear fit, it looks "good' to me.

    270018
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    Had some serious problems with chatter when...

    Had some serious problems with chatter when turning the mounting flange.


    First time machining something like this, the spots on outer edge was really hard
    I tries different speeds, feeds, added...
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    I removed the mounting flange from the motor and...

    I removed the mounting flange from the motor and took a closer look. I dont know what has happened to it because it has been repaired. Maybe someone dropped the motor to floor when removed and broke...
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    5 picture limit per post Inside the knee...

    5 picture limit per post

    Inside the knee
    269510
    269511269512
  11. Replies
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    I have rear control on this machine and when i...

    I have rear control on this machine and when i was searching the cause of the noise, i managed to pull out the rapid traverse lever and screw the connecrion what engages front and rear levers.

    I...
  12. You need different TPI blades for different...

    You need different TPI blades for different thickness stock you are sawing. If its to fine, you burn it and it dulls prematurely. If its to coarse you loose teeth. With power feed you can run little...
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    The bevel gears had full contact to one...

    The bevel gears had full contact to one direction, i have it now back togheter and everything feels smooth so far. I need to repair the motor cooling fan and true up the motor mounting flange.

    I...
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    Its not that big job to get it done when needed....

    Its not that big job to get it done when needed. Drain oil from knee, Motor off, 4 bolts, Casing of the knee 9 bolts and the shaft with the bearings 4 bolts.
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    Cleaned all good and put it just back togheter...

    Cleaned all good and put it just back togheter and feels good for now! :)
  16. Replies
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    I am 30 years old and i wish i wont sell this...

    I am 30 years old and i wish i wont sell this beauty never :)
    It was noisy when feed motor was running, i took it apart and didnt found any clear reason for the sound. Now i need to check the bevel...
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    Cincinnati vertical manual Milling machine feed...

    Cincinnati vertical manual Milling machine feed motor drive gear bearings, theres motor, idlers and then this with bevel gear in one end.
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    Taper roller bearing wear

    I am wondering if i should change these or not, they feel "ok"
    The contact area is matt, lost its shine.

    Can you help me by looking the pictures, thank you! :)

    269085269086269087
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    I used a dial indicator to sweep the motor flange...

    I used a dial indicator to sweep the motor flange contact area and its tilted 0.1mm, i assume this misalignment can make also some noise in the gears. The motor mount flange has been fixed by someone...
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    This machine has never been in a production use,...

    This machine has never been in a production use, so the gears ahouldnt be worn of too much of use.

    I can bring the bevel gear closer by grinding the shim.
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    YouTube (https://youtu.be/OaWsFX6vXZk) YouTube...

    YouTube
    YouTube


    Here are links to motor cooling fan and the feed motor drive gears. You can hear in the end of the video little noise which sounds little like bad bearing. It stopped when i...
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    268985268986268988268989268987 Here are some...

    268985268986268988268989268987

    Here are some pics from the tapered roller bearings. I think worth changing? I cant find any clear reason for the rattling sound when the motor was running. Also...
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    268981268982268983268984 Bearing races look...

    268981268982268983268984

    Bearing races look really gray and edges are shiny
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    More pics coming

    More pics coming
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    Any idea what causes the gear failure? The idler...

    Any idea what causes the gear failure? The idler gear(s) are the one what have broken on other machines?
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