Register now to get rid of these ads!

Bandsaw help: hydraulic feed cylinder on 5x6 horizontal saw--doesn't regulate

Discussion in 'The Hokey Ass Message Board' started by Brad54, Apr 21, 2009.

  1. Brad54
    Joined: Apr 15, 2004
    Posts: 6,022

    Brad54
    Member
    from Atl Ga

    I just picked up a horizontal 5x6 Shop Fox band saw. It's practically brand new, and in fantastic shape, except for the hydraulic feed cylinder. There's very, very little wear on it, and there are no visible leaks, but the cylinder doesn't regulate the rate of descent at all--it's strictly gravity at this point, and the head of the saw is too heavy for a gravity feed, as it deflects the blade.

    Is there a way to "prime" the cylinder, bleed air bubbles or check the fluid level in it? I'd rather get a little direction before breaking out the line wrenches and snap ring pliers.

    It came with the factory instruction manual, and didn't have anything in there about the feed cylinder, other than turning the knob to adjust the rate for different materials.

    -Brad
     
  2. ems customer service
    Joined: Nov 15, 2006
    Posts: 2,654

    ems customer service
    Member

    make sure that the gaurds or blade adjusment brackets do not interfere with the downward movement, they sometimes be adjusted to interfere.
     
  3. stealthcruiser
    Joined: Dec 24, 2002
    Posts: 3,750

    stealthcruiser
    Member

    Not without some "visual aid" Brother.
     
  4. Offy#10
    Joined: Dec 9, 2008
    Posts: 19

    Offy#10
    Member

    1st I would take the adjusting knob out,then work the blade ***y up and don slowley to see if there is fluid in the cylinder. If no fluid get some in a oil can and fill with the blade aa down and lift slowley to **** in fluid.
    put adjusting screw back and see if you corrected the problem. good luck!!
     
  5. havi
    Joined: Dec 30, 2008
    Posts: 1,876

    havi
    Member

    Most definitely. But, if it's ****on controlled to lift the head back up, and it does, there should be fluid in the cylinder. There may be a feed adjustment somewhere that isn't working, or simply just not enough fluid to cycle. Pics would help.
     
  6. havi
    Joined: Dec 30, 2008
    Posts: 1,876

    havi
    Member

    Looks like the only way to control feedrate is the knob next to the cylinder. I would say turn it all the way clockwise, see what happens, then turn it all the way counterclockwise and see what happens. Should be a difference.[​IMG]
     
  7. fab32
    Joined: May 14, 2002
    Posts: 13,985

    fab32
    Member Emeritus

    Sounds like there is insufficient fluid in the cylinder. A close inspection should reveal a fill port. If not call the factory and get the straight scoop.
    If adding fluid only do it when the cylinder is fully collapsed. Filling when the shaft is extended will over fill the cylinder.

    Frank
     
  8. noboD
    Joined: Jan 29, 2004
    Posts: 8,990

    noboD
    Member

    What Fab32 said, Brad.
     
  9. Brad54
    Joined: Apr 15, 2004
    Posts: 6,022

    Brad54
    Member
    from Atl Ga

    Well, I went and broke out the wrenches... fluid had some air bubbles in it, I topped it off in the down position and turned the knob all the way closed, then again all the way open, then half way, lifted the cylinder half way up and repeated, slowly lifted and filled the cylinder as it went up, bled it, yadda yadda yadda.
    Basically, every conceivable combination of cylinder travel and knob position.
    No go.

    It looks like there might be leakage past the cylinder shaft, but everything is dry on the top of the cylinder... after I spilled some oil on it, there was movement around the oil on the shaft.

    I wrote to their online tech help, and called tech only to leave a message.

    I'm guessing there's an internal seal that's blown.

    -Brad
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.