OLGAS-H
– High pressure spring return hydraulic actuator
Use and maintenance manual
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Pag. 34
Contents may change without notice
Picture 13
– Level measuring stick
5.1.1 Check and restore oil level in the hydraulic control unit (
refer to chapt. 7.2 table 5 )
Operate the distributor lever to “manual operation” to operate valve
and to compress completely the actuator spring.
Move the actuator into his “totally compressed spring” 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 2) if in the tank the oil level is BELOW THE
MINIMUM (Picture 13: minimum level is in correspondence to the
end of dipstick ) until to reach the optimal (MAXIMUM) oil level .
