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Search results

  1. R

    FMTV Air Hydraulic Unit Repair

    Works good, except for me leaving its vent uncovered and saturating the oil with water:). Just relocated it back behind the fuel tank so I can start cutting huck bolts to remove the mid structure, and changed the emulsified oil… I did not use the flow control device I discussed earlier and...
  2. R

    FMTV Air Hydraulic Unit Repair

    Yep, I have already specced the part and it is in a shopping cart awaiting my next order:) the one I planning on using will go on the line to the bottom of the cylinder. it incorporates a check valve so will be full flow during raise and restricted/metered during lowering... I will get a video...
  3. R

    FMTV Air Hydraulic Unit Repair

    I received the Wolverine hand pump and mocked it up to test it. The math(and guestimates) were pretty close, but it only takes 26 full strokes for the cab to reach the balance point from down and locked. I calculated the peak force to be around #45 on the end of the 20” lever, but it is...
  4. R

    FMTV Air Hydraulic Unit Repair

    That spare was moving like it had a purpose:)
  5. R

    FMTV Air Hydraulic Unit Repair

    A 1.5cu/in Prince Wolverine. It is a dual action pump, so pumps handle up and down(installed pump is only single acting). And it has a valve for controlling a dual action cylinder(extend&retract). The installed pump is about .25-.30cu/in per pump stroke, but the lever force is quite light...
  6. R

    FMTV Air Hydraulic Unit Repair

    If you are just replacing the AOP, something like the below unit should work. The cab lift cylinder for instance requires just under 0.2 gallons of fluid to lift fully. My AOP lifts mine just under 60 seconds, so it is about a 0.2 GPM pump. That is a bit long of a duty cycle for a small...
  7. R

    FMTV Air Hydraulic Unit Repair

    Yea you can replace the air op unit with a 12 or 24v DC hydraulic power unit. It also doesn’t take one very large to simply run the cab lift or tire crane. In fact you want one sub 1 Gallon Per Minute(closer to 1/2GPM). Any more than that and it will simply build to full pressure and push the...
  8. R

    FMTV Air Hydraulic Unit Repair

    I think I am going to just go manual only using a prince pump and valve. I am removing all the tire structure and relocating the air filter for my build anyway and a simple manual pump will simplify things greatly…
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