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  1. Ursus C355 - Brake problems - cannot bleed them?

    question Ursus C355 - Brake problems - cannot bleed them?

    Thanks for the reply... The Ursus C355 is a 1976 model... We have managed to get a reasonable pressure on the pedals...we had to pump more vigorously to get the air out...so we do now have a foot brake... The handbrake was linked to the footbrake pedal with a link under the foot plate..it would...
  2. Ursus C355 - Brake problems - cannot bleed them?

    question Ursus C355 - Brake problems - cannot bleed them?

    I have recently refurbished the brakes on a Ursus C355.. Brake shoes were solid - Pivot pins seized Wheel cylinder pistons solid ...rusty.. I Fitted:- New wheel cylinders New brake pipies New Master cylinders New equalizer across the two master cylinders. I cannot seem to get any pressure on...
  3. Zetor 3045 - Dripping overflow pipe on Injector pump - Why?

    Zetor 3045 - Dripping overflow pipe on Injector pump - Why?

    Can anyone tell me why the overflow pipe is dripping on the injector pump? Where is the oil coming from? It drips when the engine is running and after for a short while. Is it splash oil through the timing cover connection that drives the pump? Or.. too much oil in the govenor side? The engine...
  4. Zetor 3045 - Oil leak from injector pump.

    Zetor 3045 - Oil leak from injector pump.

    We have restored a Zetor 3045 that had been standing for 10 years. Fitted a replacement block/new liners/ pistons etc... Refitted the original diesel injector unit reconnected injectors etc.. The engine started after a few turns which was a good sign. The injection pump looked like it had not...
  5. Zetor 3045 / 3011 Brake Backplate sealing ring position

    Zetor 3045 / 3011 Brake Backplate sealing ring position

    Matthew, thanks for the reply. The direction the seal faces I am ok with. It is the distance it goes into the locating bore - it can go flush with the casting or upto 5mm in sitting right on top of the bearing. The seal is 12mm deep and there is a bore about 17mm deep for it too locate. I don't...
  6. Zetor 3045 / 3011 Brake Backplate sealing ring position

    Zetor 3045 / 3011 Brake Backplate sealing ring position

    Matthew I have a digital photo of the backplate I took off. My email is steve.foster@ametek.co.uk if you send me a blank email I will attach the picture for you to look at. Thanks, Steve
  7. Zetor 3045 / 3011 Brake Backplate sealing ring position

    Zetor 3045 / 3011 Brake Backplate sealing ring position

    I have been reconditioning the brakes on a Zetor 3045. This involved fitting new cylinders / springs etc... I have replaced the two sealing rings (oil rings) in the brake backplate. One is a 45 x 62 x 12 that is held in a fixing cover that attaches to the rear of the brake backplate with 3...
  8. Zetor 3045 Piston orientation

    Zetor 3045 Piston orientation

    I am overhauling a 3 cylinder Zetor engine including new liners / pistons / rings etc... Have the pistons got a direction in the bores? To my knowledge some types of piston have a thrust and anti-thrust face... The combustion hole on the Zetor pistons is central, so I don't think it matters...
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