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  • Users: Cbrunner
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  1. Cbrunner

    Vacuum Cup Question

    I'm having an interesting debate with a friend a need help finding the solution. In our plant are a number of suction cups attached to backing plates. Some of the cups have been vulcanized to the backing plate, some are just glued. He tells me that it is necessary to have the cups affixed...
  2. Cbrunner

    Need some help with a math question

    I swear I've lost my marbles... they are somewhere around here. A cylinder has a PO operated check on both rod and blind ends. The ratio of these checks is unknown. The cylinder is extending and lifting a load of 10,000lbs. The dimensions of the cylinder are 5 x 1 x 30. The cylinder is...
  3. Cbrunner

    Loading generator without a load bank.

    I don't have a load bank (or access to one). I need to load a generator engine (about 120HP) to make sure it's enclosure is not going to produce problems like overheating. I have read in many generator manuals about a method of shorting the generator coils and externally exciting the windings...
  4. Cbrunner

    DC Motor arcing across relay contacts

    I'm working on a winching/hoisting application. The load in question is being raised/lowered by a spool, driven by a DC motor. I expect the motor is a simple series wound DC drive, but I don't have one here at the desk to be certain. I do know that the motor is not a permenant magnet, or...
  5. Cbrunner

    How to remove AC signal on DC supply

    Ok, I'm a hydraulic guy - and although I do a lot of control work my level of electrical "enginering" is quite limited (so this problem is making me feel real dumb). I'm working on a 12v DC system that is installed on a chassie that also has 208v 3phase 60hz power running "around" it. The...
  6. Cbrunner

    Trying to Understand Control Valve

    Hello Everyone; By comparable standards I'm really new to Hydraulic troubleshooting (although I do a lot of install work). A friend of mine brought me his bucket truck. It uses pilot operated main valves down at the lower section. The pilot controls (oil) are fed up the boom to the...

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