38
Installation, Operation and Maintenance Manual
MAN 564 Rev. 6
June 2020
Maintenance
Section 5: Maintenance
Maximum level
Minimum level
Figure 37
Level measuring stick
Figure 38
5.1.1
Check and Restore Oil Level in the Hydraulic
Manual Override
Operate the distributor lever to “closing manual operation”.
Move the actuator into his “fail to close” position.
Unscrew the dipstick (1).
Check that the oil level into the tank (4) is in correspondence of the “MAX LEVEL” notch of
the dipstick.
Screw and tighten the dipstick.
If necessary substitute or added the oil, proceeding as follow:
•
Remove the dipstick (1) from the tank cover (22).
•
Unscrew the plug (27) and the washer (9) to drain all the oil.
•
If some dirt or/and sludge is found in the oil drained from the tank, before filling
with new oil in the tank, disassemble the oil tank tube, by unscrewing the two
cap nuts (2), and clean the internal surfaces of the tank. If necessary substitute
the gaskets (21) of the tank.
•
Replace the plug (27) and the washer (9) into the plate (11) and tighten.
•
Pour the new oil into the tank through the dipstick hole (1) on the cover (22).
•
Replace the dipstick (1).
•
Add oil (refer to Table 18) if in the tank the oil level is BELOW THE MINIMUM
(Figure 37: minimum level is in correspondence to the end of dipstick) until to
reach the optimal (MAXIMUM) oil level.
•
Operate the distributor lever to “Remote” position.
