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Remove the harmonic balancer on 3406 to get to fan belt?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Rick Wilmath, Jul 20, 2016.

Page 2 of 2
  1. Jul 20, 2016 #11
    pup

    pup Light Load Member

    252
    256
    Dec 3, 2011
    n.h.
    0
    I've had luck sliding the hub forward with the fan attatched & dropping the belts behind the hub.
     
    pup, Jul 20, 2016
    pup, Jul 20, 2016
    #11
    rank Thanks this.
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  3. Jul 20, 2016 #12
    Rick Wilmath

    Rick Wilmath Light Load Member

    57
    3
    May 15, 2016
    0
    The truck is a 1993 Freightliner conventional. There is some room between the radiator
    and the fan hub but not enough to do yoga exercises. lol

    I have started working on it and the nuts/bolts to the fan are coming off fairly easy. I don't
    know what is going to come tumbling off in my hands but I am making progress.

    Thanks for help!
     
    Rick Wilmath, Jul 20, 2016
    Rick Wilmath, Jul 20, 2016
    #12
    rank Thanks this.
  4. Jul 21, 2016 #13
    T800H

    T800H Medium Load Member

    608
    295
    Apr 2, 2010
    The Keys
    0
    mine is a '99 T800 3406E
     
    T800H, Jul 21, 2016
    T800H, Jul 21, 2016
    #13
  5. Jul 21, 2016 #14
    javelinjeff

    javelinjeff Medium Load Member

    621
    185
    Aug 30, 2007
    victorville,ca
    0
    On my 95 379 I have to remove the blade from the hub then loosen hub belt tensioner to get belts off,,removing the fan blade results in loss of skin around knuckles
     
    javelinjeff, Jul 21, 2016
    javelinjeff, Jul 21, 2016
    #14
  7. Jul 21, 2016 #15
    mtoo

    mtoo Road Train Member

    1,929
    4,433
    Jan 15, 2011
    Retired on bended knee
    0
    My 88 pete with 3406B I could remove the fan blades. a little snug but it was quick
    My 96 pete with 3406C I had to unbolt the hub and slide the belts on from behind

    This is a job you want to do at home not on the side of the road with a hot engine.
    Repair before failure
     
    mtoo, Jul 21, 2016
    mtoo, Jul 21, 2016
    #15
  8. Jul 22, 2016 #17
    Rick Wilmath

    Rick Wilmath Light Load Member

    57
    3
    May 15, 2016
    0
    The job was easier than I thought. I removed the fan from the hub and then cut the old belt off because it was too big to slide out. Since the pulley can be adjusted a whole bunch, I bought the two belts but at an inch and a half larger size. They slid over everything fairly easy. I then adjusted the
    pulley to make them tight and it works fine.

    Thanks everybody for the help!
     
    Rick Wilmath, Jul 22, 2016
    Rick Wilmath, Jul 22, 2016
    #17
  9. Jul 22, 2016 #17
    rank

    rank Road Train Member

    9,916
    113,498
    Feb 11, 2010
    50 miles north of Rochester, NY
    0
    We knew you could handle it.
     
    rank, Jul 22, 2016
    rank, Jul 22, 2016
    #17
  10. Nov 24, 2019 #19
    rrssllll

    rrssllll Bobtail Member

    31
    3
    Mar 23, 2012
    Kermit Texas
    0
    You're making this way too hard.All you need To do is loosen The fan shroud Bolts that are around the outside of the fan shroud you will see that they are slotted.There is a Bolt in the center of the top of the fan shroud that also needs to be removed.You slide the fan shroud Down Until you can loosen the fan hub Down With the center adjustment Bolt Far enough to remove or replace the belts. No need to remove the fan.No need to remove the fan hub from the front of the engine.Any questions?
     
    rrssllll, Nov 24, 2019
    rrssllll, Nov 24, 2019
    #19
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