Hipolito 502 foot valve

Discussion in 'Fettling Forum' started by Scotlamp, Sep 16, 2019.

  1. Scotlamp

    Scotlamp United Kingdom Subscriber

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    Good day to you all . I stripped my hipolito 502 and I had great difficulty undoing the bottom half of the generator unit .I sort of checked that the foot valve was moving up and down ok . So I continued to overhaul the lamp with existing parts ( parts on order ) I got to the dunk test and no bubbles !! .by the way the gauge was not working. I thought great .then realised It lost pressure . The leakage was from the nozzle needle . cut a long story shorter , I plucked up enough courage to undo the bottom half of the generator valve with a set of mole grips and a good wack from a hammer . I was afraid of the tank distorting . So the moral of this thread is. Check the foot valve pip firstly !!! saves a lot of bother.
    The parts arrived today got the pressure gauge (manometer ) fitted . held pressure very well I changed the lead washer on the pump nrv it was a loose fit , this did not work seems to be to large . I suppose a bit of a flatten with a hammer might reduce the orifice size . and the actual pump is a bit hard to use takes a bit of energy . I will work on the last two issues tomorrow but in the meantime any tips for them would be helpful.

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  2. Scotlamp

    Scotlamp United Kingdom Subscriber

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    Good evening. just an update on this reference using the correct spare parts . (parts from bian-world and hytta.de ) The footvalve (NRV) for the generator was the biggest problem ,
    Got the spare parts and it made this overhaul more enjoyable , the pip in the footvalve had a little brass cone insert to accomodate the generator
    rod. the correct size lead washers perfect fit .The adjustment of the new needle was easier I think because the generator footvalve (NRV) was not so worn.
    Also the advice on here to view the restoration of the petromax ( Author © : Jan Moeller, Germany,) was helpful .
    The needle is just protruding the from the nipple and pressure has been maintained 1.5bar since this morning air only .
    Just going to read around to see what best paraffin to use . DSC_2582.JPG
     
  3. Alex Smith

    Alex Smith United Kingdom Subscriber

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    Good effort on your Hipolito 502, restored one recently, it will be well worth the effort once complete.
     
  4. Scotlamp

    Scotlamp United Kingdom Subscriber

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    Thank you Alex and as you say well worth it " Blinding "
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  5. Scotlamp

    Scotlamp United Kingdom Subscriber

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    Just to confirm it is a Hipolito 502 automatic
     
  6. ROBBO55

    ROBBO55 Subscriber

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    It's cleaned up nicely. Congratulations :thumbup:
     

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