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  1. alexander coletta

    frost heave protection for freezer room in warm weather countries

    HI All, Im designing a cold room that will operate at - 4 farenheit. Local Climate all year round its warm : min 79 F mas 120 F For Walls and roof will use expanded polystyrene Sandwich panels Under the concrete Slab we will be using 2 layers of 2" of expanded polistyrene + Vapor...
  2. alexander coletta

    Atlas Copco GA75 overhaul specs and manual

    Hello All, We want to rebuild our atlas copco GA 75 compressor , we already have all the original bearings and parts required . I have not been able to find any manual with the tolerance and torque specifications Any advice? Thanks in Advance Alex
  3. alexander coletta

    Volvo Penta 750 KVA Generator mistery problem

    PROBLEM SOLVED! We finally were able to get the generator running under load! As mentioned before we were getting High Air Temp in the intake manifold. Today we inspected again the complete cooling system. Our engine is equiped with a coolant overflow valve that controls the amount of flow...
  4. alexander coletta

    Volvo Penta 750 KVA Generator mistery problem

    Hello all and thanks for your posts Today we did two new tests: we used an old school pressure gauge to compare the readings of the control panel , conclusion manifold pressure sensor its OK Later during the day we found a new Air Temp/ Air pressure sensor and run a test. Result was the...
  5. alexander coletta

    Volvo Penta 750 KVA Generator mistery problem

    Hello All, Thanks for your advice, I will make a list of the things we have done to the moment: 1-) Fuel System : our first Idea was to the check fuel for contamination or obstructions in the line. Everithing was checked and no problems were found . We even changed the 2 fuel filters. Old...
  6. alexander coletta

    Volvo Penta 750 KVA Generator mistery problem

    Hello, We have a stand by 750 KVA Generator ( Marathon Electric / Volvo Penta Power ) 900 hours of use. MTU Model 660RVC6DT2 Engine TWD1643GE-VOLVO The generator will run smothly when no load its applied. After a few minutes of working with load ( even 20% of the generator capacity) the...
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