Pre-Cooling Reefer

Discussion in 'Questions From New Drivers' started by Master1john, May 20, 2022.

  1. Master1john

    Master1john Bobtail Member

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    So I trained about 2 months before getting my own truck but now (2nd load) I had to pre-cool the reefer to -10 (my trainer never really went over this). I thought 1.5 hours would be enough time, needless to say it wasn’t. Now I’m at the shipper waiting for it to cool (currently at 25F) hoping they don’t kick me out. Anyone have any idea how long it will take? It’s an olderish trailer with a few small air gaps. Outside temp is 75F
     
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  3. Magoo1968

    Magoo1968 Heavy Load Member

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    Sometimes a manual defrost will speed things up but i suspect your reefer is getting weak . If it won’t precool trailer at 75 it probably won’t keep up with demand of a frozen load.
     
  4. Another Canadian driver

    Another Canadian driver Heavy Load Member

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    Have you done a reefer pre-trip?
    When you do it, it usually cycles through everything including a defrost.
    It ends with a report that can be Pass, Check or Fail.
    I always do it and take a timestamped pic of that result.
    The defrost will help with the deep cooling. All the time.
    Defrost can be done manually too.
     
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  5. Short Fuse EOD

    Short Fuse EOD Road Train Member

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    My Reefer will go to -10 at 75 in about ten minutes. So, yes you have equipment issues.
     
  6. Master1john

    Master1john Bobtail Member

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    I’ll be honest to say I have no idea what that means. My trainer taught me to set the temp and wait, that’s about it. Nonetheless the shipper is loading my now at 15F and my carrier doesn’t see any issues with the reefer
     
  7. Short Fuse EOD

    Short Fuse EOD Road Train Member

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    Have you checked refrigerant flow volume in the sight glass while the unit is running? Little ball should float and not be sunk at bottom of sight glass.
     
  8. Another Canadian driver

    Another Canadian driver Heavy Load Member

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    Pre-trip explained above by @Trckdrvr.
    Pretty clear description.
     
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  9. Eddiec

    Eddiec Road Train Member

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    Get the name of the person from your carrier who is telling you the trailer is okay, as well as the person at the shipper who approved loading.
     
  10. LTL Bull

    LTL Bull Medium Load Member

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    Agreed! I’m not a reefer guy but that sounds like a big claim waiting to happen
     
  11. Moose1958

    Moose1958 Road Train Member

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    Cooling reefer before use? What a concept!
     
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