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Fisher MM2 angles left slower than right angle

Discussion in 'Truck & Equipment Repair' started by jroptop, Nov 29, 2015.

  1. jroptop

    jroptop Junior Member
    Messages: 5

    Well,figured I would come in here next after trying to troubleshoot the problem on my own and with some research that led to nothing..The issue I am having is the left angle moves slower than the right angle.I noticed this more if the left angle is completely collapsed and going to the completely extended.Ive changed,fluid,filters,checked the S3 solenoids,and the rest,checked for kinked hoses etc.Possible weak motor or poppet valve?I checked the poppet valve and no broken springs,also loosed the packing nut on angle cyclinder but same issue,any ideas?Thanks in advance!
  2. kimber750

    kimber750 PlowSite Veteran
    Messages: 4,676

    Did the spool move freely? You can try disconnecting the rams and move the blade by hand to check for binding. This will all give a chance to check the rams, once hoses are removed they should move some what freely.
  3. jroptop

    jroptop Junior Member
    Messages: 5

    hello,yup,disconnected the lines and the blade moved freely side to side,also checked this when I disconnected the lines to bleed the system with new fluid
  4. jroptop

    jroptop Junior Member
    Messages: 5

    after further testing,the motor winds up slower when angling left from a fully collapsed position,but if I switch from left to right and right to left mid way,the speed is identical.Connections at motor are clean. Should I get fluid leaking out of the packing nut if I loosen it a bit?I did get leaking on the drivers side ram like I did on the passenger side ram.Perhaps I have a weak seal on the PS ram,reason why it angles slower at a collapsed position?But doesn't explain the lower pitch of the motor when angling left from a collapsed position....