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22
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English
AP030
R
After cooling, apply a coat of rustproof paint to the welded zone
(
C21
).
3.8 FINAL FITTING OF THE OPERATOR
Spread graphitized-type grease on to the frontal anchorage pin of
the ball joint (
C22
pos.
1
).
Spread graphitized-type grease on to the ball joint (
C23
pos.
2
).
Fit the jointed head to the pin (
C24
pos.
1
) and fi x in place with the
snap ring (
C24
pos.
2
).
Fit the operator to the rear mounting with the fork pin (
C25
pos.
3
)
and its locknut (
C25
pos.
4
).
Using the template, check once more that the rod advances from
the operator to the set distance when the gate leaf is completely
closed; then tighten up the ball joint fi tting to the rod using a CH
12 hexagonal wrench (
C26
pos.
5
) and a CH 17 hexagonal wrench
(
C26
pos.
6
).
Warning
!
• When the mounting is completed, neutralize the hydraulic lock
(if present in the operators) by turning the correct key through
180° anti-clockwise, and move the gate-leaves manually to
check on the smoothness of the movement; this should be
done very slowly, otherwise the operators will take in air and,
consequently, will have to be bled.
• Open and close the gate leaf to check that the operator can
move freely without rubbing and without going against either
the gate leaf or the gate post.
• After making the checks, reset the hydraulic lock by turning
the release key fully in a clockwise direction.
3.9 FINAL ASSEMBLY
3.9.1 Bleeding
Warning
!
Before proceeding in setting the operator, bleed it.
Start the operator after having checked the setting of the pressure
relief valves, move it to stroke end either in open or close position
and, acting on the screw (see fi g.
C27
), lock and release the operator
a dozens of times.
3.9.2 Adjusting the brake in close position
Warning
!
The operator is standard supplied with cut-out
brake.
Do not unscrew the hydraulic brake setting screw
completely to prevent oil leakage.
For an easy adjustment, proceed as follows:
• Retract the rod inside the operator by means of the
manual release device or by powering the operator
opening.
• Tighten the slow-down setting screw (
C28
pos.
1
)
by rotating clockwise.
• Power the operator closing (rod extension) for a
longer time than the one necessary to complete the
maneuver. The rod movement stops.
• Rotate the slow-down setting screw (
C28
pos.
1
)
counter-clockwise. Rotate slowly for max 4 complete
turns until the rod starts moving again.
• Adjust the slowing-down as required by rotating the
screw of half-turn.
AP030029
AP030028
AP030033
AP030032
+
mm/sec
1
AP030035
1
AP030034
AP030031
AP030030
C21
C22
C23
C24
C25
C26
C27
C28
Installation
