Cattini Oleopneumatica YAK 312 Manual Uso Y Manutención página 18

EN
pump (935): check for the excess oil in tank. If the jack has been turned upside down or damaged the leak
will soon stop; - If oil is leaking from the silencer (267) and point B has failed to solve the problem, you
must check the integrity of the hydraulic block (1152): replace the seals (90) and (26). If the leak still
persists, replace the whole unit (1152).
OTHER CASES.
- If the pistons lift up very slowly check that the tap 843 between the tank and motor pump is open. - If the
jack is malfunctioning when lifting or lowering, check the spring (1046), the rubber ball seal (429) and the
smooth sliding of the piston (130).
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