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  1. #21
    Join Date
    Jul 2012
    Location
    lafargeville ny usa
    Posts
    256

    Default Re: What to do with drawn frames?

    how long it takes to freeze up a load solid depends on the outside temperatures and how directly the cooled air can contact the frames. if it is 80 degrees F., it takes a lot longer than if it is 40 degrees F. outside. if the load is in shrink wraped boxes it takes a lot longer. at say 55 degrees out side and the load is only half what will fit in the trailer it should be frozen solid in a day or so. so maybee25 gallons at $4 would be $100 at most. the load air temperature will be down to frozen food range [10 degrees ] in less time, a few hours, the unit will then idle and save some fuel. yes it costs money to run a refer.

  2. #22
    Join Date
    Jul 2012
    Location
    lafargeville ny usa
    Posts
    256

    Default Re: What to do with drawn frames?

    Quote Originally Posted by jim lyon View Post
    Wow! We found a reefer mechanic. This forum is great. Tell us what one should be looking for in buying a used piece of equipment like this.
    thermo king and carrier completely dominate the north american market. stick with something less than 20 years old [before this most of the the stuff is built for obsolete refigerants].the thermo king is quieter and simpler. the carrier is more fuel efficent and much easier to work on.TK used issuzu engines until changeing over to yanmar,carrier uses kubota engines.these are all good.with good care it is hard to wear out an engine, however they can be abused to death.the carrier compressor has more capacity but is more complicated.there is a lot more wire in a carrier unit but the computers are a lot less trouble.once a TK gets up to a few thousand hours the computers can be an expensive repeated nightmare. avoid the TK screw compressor [ efficent when new,then they do not last long,no practical fix]. on the trailer avoid overhead doors or better yet walk away.they leak,raise fuel cost and require way too much maintainece.look at the crossmembers under the trailer floor, if the floor is straight they can be replaced but not cheaply.if the trailer roof leaks the insulated walls can be satuated with water, i know of one that really seemed good except for the extra 7000 pounds of empty weight [water],we junked it, there is no practical fix for this.the hours on a unit are not as important as the condition, look for good long term maintaince.the fleet i work on has old number 20 it is a 2000 trailer with one and a half million miles on it, this the second new trailer the unit has been on [1993 carrier unit] last sumer i changed the rear motor seal the only internal motor work since new 29000 hours ago.that is engine hours and a few milion miles.this thing still works around the clock... all refers eat lots of starters, altenators,belts and batteries.when looking at a used unit think engine hours not unit on hours.look for oil leaks on the refigeration stuff this equals refrigerant leak,it must be fixed not just gas added.keep in mind that these things hold 10 or 20 times as much refigerant as compared to your pickup and the cost per pound is several times as much.

  3. #23
    Join Date
    May 2012
    Location
    Rockford, MI
    Posts
    2,073

    Default Re: What to do with drawn frames?

    mmiller... I believe he marks his frames with a specific color to match a given year. He basically has several different year frames (first, second, and third year) in a hive and swaps out the 3 year old comb and replaces with new undrawn foundation.
    Hope that makes sense.

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