Cattini Oleopneumatica YAK 109/C Manual Uso Y Mantenimiento página 16

THE JACK LIFTS, BUT COMES DOWN UNDER THE LOAD
- Dismantle the assembly (2082) and check that under the valves (40) and (83) there are no impurities, then, after
carefully cleaning, readapt the pin (83) in its seat with a light blow with a hammer. If it is not possible to obtain a
seal on the pin, replace the valve (KIT0265) complete with the pin (83). If the load still falls even after fitting the
jack, carry out the following step. - Completely drain the tank and the cylinder of oil, loosen the cylinder and check
the washer (2034); if it is damaged, replace it. Refit everything and tighten the cylinder. Fill the oil tank with oil to
the required level; operate the jack a couple of times without the load; bleed and then top up the oil level when the
pistons are lowered.
OIL LEAKS
- If the jack expels oil from the silencer (719), it means: the pumping element (2089) is scored or damaged and
must be replaced; the seal (2088) is worn and must be replaced.
EN
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