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Cat 637D

Discussion in 'Scrapers' started by Heppner, Apr 1, 2018.

  1. Heppner

    Heppner Member

    Joined:
    Jan 4, 2016
    Messages:
    8
    Location:
    British Columbia
    Hi all. I’m looking at a couple 637d’s. Wondering what the negatives are. Good machines bad machines? Thanks in advance for the advice.
     
  2. old-iron-habit

    old-iron-habit Senior Member

    Joined:
    Nov 23, 2012
    Messages:
    3,199
    Occupation:
    Retired Cons't. Supt./Hospitals
    Location:
    Moose Lake, MN
    I never ran one, but a company I drove piling for lots of years ago, had a fleet of them. They worked them damn hard, 2 shifts at times, for a lot of years. That being said their lead mechanic had worked as a Cat Dealer mechanic for many years before he got fed up with the system and left for the private contractor. He knew his stuff and was super pro active on preventative maintenance.
     
  3. Junkyard

    Junkyard Senior Member

    Joined:
    Jun 5, 2016
    Messages:
    2,263
    Occupation:
    Field Mechanic
    Location:
    Claremore, OK
    I've been around some 27's and 37's. They're good machines based on my experience. Pretty simple overall and not hard to work on. Dang tires will cost you both arms and legs so make sure they're good on tread and not too old!

    Working together in good conditions they'll move a lot of earth! Don't forget to consider hauling them, not sure what you have for haul trucks etc. Some guys add iron and then realize because they have to hire out hauling it eats profit. Food for thought.
     
  4. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    9,265
    Location:
    G..G..G..Granville...........!!
    I guess one big question is whether they still have the original model engines (3408 mechanical front, 3306 rear) in them or if they have been upgraded to "Emissions" engines. That would be a 3408HEUI or a C-15 in the front or a C-9 in the rear. I'd be more sceptical of them if they had been repowered, the original engines were pretty well bullet-proof and infintely rebuildable.
     
    Buckethead likes this.
  5. 3quipz

    3quipz Member

    Joined:
    Apr 18, 2018
    Messages:
    7
    Location:
    United States
    Good to know some info on Cat 637D. Are there other details I should take note about it?