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22
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English
AP029
R
Withdraw the jointed head of the operator from the front
mounting; completely remove the operator itself from
its temporary mountings, close off the fl ange with the
correct plug; complete the welding, covering the pin
(
C18
pos.
3
) (using a clean cloth or adhesive tape)
to protect it from weld residue, and then clean off the
residue with a wire brush (
C18
pos.
4
).
Warning
!
• Whilst welding the points on the front mounting
with the electrode, always cover the rod with a
clean cloth; a splinter of molten metal can cause
irreparable damage to the machined surface and
render the operator unusable.
• During
welding,
the
operator
must
be
disconnected from the electricity supply.
After cooling, apply a coat of rustproof paint to the
welded zone (
C19
).
3.10 FINAL FITTING OF THE OPERATOR
Spread graphitized-type grease on to the frontal
anchorage pin of the ball joint (
C20
pos.
1
).
Spread graphitized-type grease on to the ball joint
(
C21
pos.
2
).
Fit the jointed head to the pin (
C22
pos.
3
) and fi x in
place with the snap ring (
C22
pos.
4
).
Fit the operator to the rear mounting with the fork pin
(
C23
pos.
1
) and its locknut (
C23
pos.
2
).
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 14 hexagonal
wrench (
C24
pos.
3
) and a CH 19 hexagonal wrench
(
C24
pos.
4
).
Warning
!
• When tightening up the ball joint fi tting on to the
rod, be careful not to damage the rod with the
tools. Under no circumstances should pliers or
other such tools be used (C25 pos. 5).
• 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.
AP029030
AP029029
AP029032
AP029031
AP029028
AP029027
C18
C19
C20
C21
C22
C23
Installation
C24
AP029034
AP029033
C25
