Mini-X and A/C

Discussion in 'Heavy Equipment & Pavement' started by ma5tr, Jun 21, 2006.

  1. ma5tr

    ma5tr LawnSite Member
    from toronto
    Posts: 103

    Hello all,

    Just wondering how good the a/c in my cat 302.5c is suppo0sed to be. We had a service tech come out when we first bought it because the freon was not filled because of shippment reasons. But it still gets hot in there when it's 100 out with the a/c on. Is that normal? Cold/cool air blows out but I'm guessing it does not hold the air good because of the poor insulation. Is this normal? Thanks
     
  2. Mike33

    Mike33 LawnSite Bronze Member
    Posts: 1,649

    My 185 bobcat does descent but it isnt like your car or home.I think the glass hurts also. My dealer said it would cool 30 degree so i figured 100 out 70 will feel good. I cant say it cools 30 but i have ran these machines quite a few years with out them in the summer with the rock rake on and it is quite an improvement. I really think the clear glass is the killer though.
    Mike
     
  3. Duramax8832

    Duramax8832 LawnSite Member
    Posts: 147

    Now dont jump down my throat here. But would it me worth tinting the side and rear windows? Just a thought. I know the tint really cooled down my truck, the ac doesnt have to work so hard now
     
  4. mow king

    mow king LawnSite Senior Member
    Posts: 571

    I don't know about the excavators but in our Cat 252b skidloader, the ac will keep me comfy even in 95 degree weather (Highest temps I've encountered while running it). Are you sure you flipped the AC switch on? Without it switched on and the temp knob all the way down it blows cool air but nothing else for me.
     
  5. tylermckee

    tylermckee LawnSite Member
    from wa
    Posts: 248

    our 140 and 160 excavators the AC blows ICE cold.
     
  6. Scag48

    Scag48 LawnSite Fanatic
    Posts: 6,067

    I've noticed this with the 277B, even with A/C on full blast it's cool in the cab, but I still sweat a little. The 312, on the other hand, is great. With doors and windows closed and the temp turned all the way down, I only have to turn the fan on maybe halfway and it's nice and cool inside.
     
  7. 2004F550

    2004F550 LawnSite Senior Member
    Posts: 270

    see if your A/C guy can give you some better freon....since its off road construction equipment it doesn't fall under the same EPA restrictions as OTR trucks and you can use some stronger material, it will definatly cool it down more.
     
  8. xcopterdoc

    xcopterdoc LawnSite Senior Member
    Posts: 752

    "see if your A/C guy can give you some better freon....since its off road construction equipment it doesn't fall under the same EPA restrictions as OTR trucks and you can use some stronger material, it will definatly cool it down more."

    EPA regs are EPA regs as far as refrigerants are concerned. They are covered under part 608 and 609.
    As far as switching refrigerants... not a good idea.
    Just have it checked by a PRO.. money well spent.
     
  9. mrusk

    mrusk LawnSite Gold Member
    Posts: 3,260

    If its under 80 the ac is great in my 246. Once it gets up to 90 and its humid out i still sweat in the cab. It is not like my truck. Also when it gets hot out you got to run it for about 10 minutes before it really starts to cool down.

    It sucks for me though since i am always in and out of the machine on these hardscape jobs.

    Matt
     
  10. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Posts: 9,544

    All the new air conditioning systems are made for the new refridgerant I forget the name of it but you can't run the old style freon.

    If you guys laid off on the bean burritos for breakfast lunch and supper you wouldn't be heating up the cab with your passing gas.

    What we usually wear when it gets to unbearably hot is regular mechanics coveralls with nothing but underwear on. It keeps you cool and it keeps you cleaner than wearing regular shorts and having bare legs. Last year I was wearing unlinined carhartts and shorts with a white T shirt.

    When it gets too hot work stops and start the next day earlier in the morning to beat the heat. Usually will start at 6:30 and work till 13:00 people usually complain if you start making noise earlier than that.
     

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