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  1. DiamondDave

    General pumping questions

    Hi guys, I work at a dry dock facility and its bothering me that I dont know as much about our pumps as id like and I also have questions about our set up. Should all pumps have a gauge on suction and discharge side and if so how do I read the information on them? What can it tell me? Is...
  2. DiamondDave

    Are clearly marked stop buttons required

    Hi Folks, There are some machines in an area that I routinely perform maintenance on. They are extraction machines for a saw mill/woodshop. The machine starter boxes have 2 buttons a green one marked start and a blue one marked clean. The blue one is also the button that stops the machine it...
  3. DiamondDave

    Angular displacement backlash

    Hello guys, ive been trying to work something out that is likely contributing to crane skew. So a loose keyway was found on the drive shaft which has resulted in elongstion on the coupling and shaft keyways thus crating backlash. Id say approximately 12mm of play exists here now. Both crane...
  4. DiamondDave

    Overhead Crane wheel standards/allowances

    Can anyone direct me to a website or give me information regarding crane wheel standards and acceptable wear. Especially for the flanges. Thank you
  5. DiamondDave

    Crane maintenance and problems

    Hi guys, a few questions on crane maintenance. I have worked in maintenance for 15 years often called to maintain cranes and other plant and to be honest its really apparent to me that some things are not done properly and my own knowledge is lacking. Some things & practices of others dont sit...
  6. DiamondDave

    Hydraulic expertise required!

    Hi folks, ive got a critical machine down in my work place and my experience with ut is limited, especually when it comes to hydraulics. Situation isnt helped as there are no schematics. Basically 2 pistons are used to either push or pull(im not sure which) a bar with wedges attached which in...
  7. DiamondDave

    Powder Coating Painting Booth Extraction

    Hi All, I've been working on an extraction problem with a powder coating booth. What is meant to happen is the fan should create strong air flow through 3 concertina filters, where the filters trap excess dust and the air just goes to atmosphere. What is happening is there is a very low air...

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