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Russ Johnson

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Posts posted by Russ Johnson

  1. Posted · Report reply

    Machine manufacturers use different pump / engine combinations, larger heating coils, and different firing rates to make the systems perform as they wish. I have seen diesel engine, diesel burner machines that will do 10 gpm @ 3,000 psi and heat it to 190 degrees. Like I said in my previous post, they're cheaper. As far as what I use? No, I don't mind you asking. I use wrenches, screwdrivers, meters, and the like. I repair the equipment. Been doing it for 29 years now.

  3. Posted · Report reply

    Direct drive, 12 volt burner:

    Pros - less expensive to purchase, easily moved, compact frame takes up less space in a vehicle, pumps less expensive to replace

    Cons - heat transfer between the engine and pump, higher operating rpm, more prone to vibration, burner volt sensitive (volts drop, transformer fries), smaller fuel capacity, burner parts expensive to replace, pumps sometimes sieze to the engine shaft making replacement a nightmare, more prone to keyway failure

    Belt drive, 120 volt burner:

    Pros - No heat transfer, belts run smoother, constant voltage to the burner, large fuel capacity, pump spins at a lower rpm, burner parts less expensive, lower center of gravity, taper lock bushings on pulleys - no key failure and easier to remove, higher flow rates available (can't get 8 gpm out of a direct drive or heat it if you could)

    Cons - Heavy and bulky, larger floor area used, pumps more expensive but replaced less

  11. Posted · Report reply

    With a propane burner, you don't need an external power source...just light the pilot and go. Fuel is difficult to source after hours, though. There are plenty of 24 hour gas stations that carry fuel oil (diesel or kerosene). A propane burner will require 2 bottles siamesed together or a horizontally mounted tank for a substantial heat rise. Forklift bottles work quite well and are fairly easy to change out if you run out of fuel. I don't know why everyone wants to run out and buy a generator. You've got a vehicle with a charging system. Buy a voltage converter and run a cord back to the trailer.

  20. Posted · Report reply

    Henry, you have 2 injectors in the same line and both draw? I figured the orifice in the second one would create too much back pressure for the first to work. I've never tried to set one up like that. General Pump makes an injector that will draw 20%.

    I don't think the bleach will hurt the rubber lining of the hose, but you still have exposed steel at each end that would suffer the wrath of bleach.

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