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2001 Genie S60

Discussion in 'Forklifts/Telehandlers' started by benblackcreek, Jun 12, 2017.

  1. benblackcreek

    benblackcreek New Member

    Joined:
    Dec 11, 2011
    Messages:
    3
    Occupation:
    Owner:Black Creek Enterprises Inc.
    Location:
    Ottawa,Canada
    I have a Genie S60 2001 year model that shakes/shudders when extending the boom. Now here is some details: all wear pads have been replaced or shimmed to tolerance, it does not shudder when boom is raised above horizontal, it does not shudder when retracting at any time no matter the boom position. So is it a hydraulic problem? Is the boom bent/twisted? We use this machine daily and the problem just kind of started one day. I cannot seem to nail it down. Machine is serviced regularaly with fresh oil and filters both engine and hydraulic.
     
    mallboro likes this.
  2. skata

    skata Senior Member

    Joined:
    May 10, 2007
    Messages:
    252
    Location:
    midwest
    did you replace any hydraulic lines recently? could be air in the cylinder?
     
  3. Johndoe

    Johndoe Member

    Joined:
    Sep 20, 2016
    Messages:
    8
    Location:
    USA
    Raise the boom to full height, Extend
    option 1: still shudders = issue is in cylinder
    option 2: boom extends normally = issue is caused by stiction.
     
  4. OFF

    OFF Senior Member

    Joined:
    Sep 30, 2009
    Messages:
    671
    Occupation:
    HD Mechanic/Shop Foreman
    Location:
    Alberta, Canada
    It takes a while to work into the system, but a hydraulic oil additive such as "Lucas Hydraulic Oil Booster" solves or greatly improves the boom chatter problem in a lot of cases.
     
  5. Smokin Joe67

    Smokin Joe67 Member

    Joined:
    Mar 24, 2017
    Messages:
    11
    Location:
    englewood
    I don't know if it would help but we spray graphite on the boom which seems to help.
     
  6. Knepptune

    Knepptune Senior Member

    Joined:
    Nov 22, 2012
    Messages:
    551
    Location:
    Indiana
    Check your extend/retract cables. Make sure they're tight.
     
  7. usmcmurillo20

    usmcmurillo20 Member

    Joined:
    Sep 29, 2015
    Messages:
    16
    Occupation:
    Mechanic
    Location:
    Altoona
    If the shop you took it to for the wear pads and shims did them correctly make sure your cables are adjusted properly if it all checks out grease the boom sections where the pads ride. A lot of the time its that
     
  8. hduhwehduhw

    hduhwehduhw New Member

    Joined:
    Aug 27, 2017
    Messages:
    4
    Location:
    Malaysia
    Did you check to make sure the wear pads on both front and rear ends of the boom are adequate?
    For my fleet, usually when I encounter the same problem it is usually attributed to the lack of lubrication between contact points of the boom and wearpad. Get someone to apply sufficient grease on all surfaces touching the wear-pad and repeat the process of retracting and extending the boom until the problem fades away.
     
  9. JasonBeech

    JasonBeech New Member

    Joined:
    Sep 12, 2017
    Messages:
    1
    Location:
    Akron, Ohio
    Well, my S60 is doing the exact same thing. Pads are good, and greased. Good fluid levels. Does not shutter above horizontal. During shutter the PSI bounces from 750-1250. I'm trying to see if my base idle PSI is too low and maybe a counter balance valve is coming into play. But I would think the boom lift position shouldn't matter then. Before I start tearing into this or buying pricy parts, I figured I would see if anyone has any ideas. Also checked relief pressures and proportional valve.
     
  10. skata

    skata Senior Member

    Joined:
    May 10, 2007
    Messages:
    252
    Location:
    midwest
    have you tried lubing the inner boom pads that you cant see? try that first before you get into hydrualics.