Cattini Oleopneumatica YAK 330/N Manual Uso Y Manutención página 16

THE JACK DOES NOT LIFT THE LOAD.
- Check the oil level by means of the screw POS. 9 GRP1GRS on the tank.
- There is dirt underneath the valves : completely lower the pistons, remove the casing, close the tap
, unlink the two pipes connected to the motor pump, unlink the red pipe connected to the tank, unscrew the
GRP1GRS GRP1GRS
pipe POS. 8 GRP1GRS POS. 8 GRP1GRS and remove the screws POS. 11 GRP1SOL. Remove the motor pump and unscrew the cap
POS. 11 GRP1MBD POS. 11 GRP1MBD ; clean the hole from which the cap and the other parts where removed, the other parts and the
fitting POS.19 GRP1MBD POS.19 GRP1MBD
THE JACK LIFTS, BUT COMES DOWN UNDER THE LOAD.
- Close the tap POS. 7 GRP1GRS POS. 7 GRP1GRS
32, 30, 8 GRP1MBD 32, 30, 8 GRP1MBD . Clean the locating holes and reassemble. - In case of oil leakage from the ram base POS. 5
GRP1GCI, completely lower the pistons, remove the ram
GRP1GCI GRP1GCI . Clean the seals and replace them if worn.
THE RAMS FAIL TO GO BACK IN COMPLETELY EVEN WITH THE CONTROLS IN DESCENT
POSITION.
- There is dirt inside the scraper rings
smoothly. Disassemble, clean and reassemble. - If, with the lever in descent position, air doesn't come off the filter of
the suction-pump POS. 26 GRP1MBD POS. 26 GRP1MBD
OIL LEAKS
- Oil leak from the ram base
and check the seals
POS. 16, 17 GRP1GCI POS. 16, 17 GRP1GCI
- Oil leak from the silencer POS. 3 GRP1MBD: the pumping unit POS. 16 GRP1MBD is scratched or worn.
Replace it along with the seals
- Oil leak from the suction-pump
procedure in the "Maintenance for the end user" section). If too much oil has been put in the jack, it will stop leaking
very soon. Check that the jack has been used observing the conditions listed previously, i.e. horizontally and not
slanted. If the jack has been turned upside down or tipped over, it will stop leaking very soon.
THE PISTONS LIFT UP VERY SLOWLY
- Check that the red pipe (DWG 11) is connected properly, and is not choked.
-Check the pressure value of the compressed air system, it should be at least 8 bar / 116 PSI.
16
, then reassemble.
, unscrew the cap
POS. 20, 12, 9 GRP1GCI POS. 20, 12, 9 GRP1GCI
, the filters inside are clogged and need to be cleaned.
POS. 5 GRP1GCI POS. 5 GRP1GCI : completely lower the pistons, remove the ram
. Clean the seals and replace them if worn.
POS. 14, 22, 24 GRP1MBD POS. 14, 22, 24 GRP1MBD
POS. 26 GRP1MBD POS. 26 GRP1MBD
POS. 11 GRP1MBD POS. 11 GRP1MBD and remove parts
and clean the seals
POS. 5 GRP1GCI POS. 5 GRP1GCI
which does not allow the pistons to operate
.
: Check the quantity of oil in the tank, (see the "Oil level check"
POS. 7 POS. 7
POS. 10, 29, 31, 9, POS. 10, 29, 31, 9,
POS. 16, 17 POS. 16, 17
POS. 5 GRP1GCI POS. 5 GRP1GCI
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