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3.4
POSITIONING THE FRONT MOUNTING
Spread grease on the threaded stem of the ball joint (C16 pos. 1), fit
the ball joint, along with its nut (C16 pos. 2) and to the operator arm,
screwing on to about halfway along the thread. Insert the pin (C16
pos. 4) into the ball joint, without fitting the snap ring.
Fit the fork (C16b pos. 1) to the base of the operator with its pin (C16b
pos. 2) and fix in place with the two snap rings (C16b pos. 3).
!
Warning
• Check the strength of the mounting zone; if necessary, fit a
strengthening plate of the correct size; the strengthening plate
is especially important with gate leaves made from thin sheet
steel.
• When cleaning the mounting zone for the operator front
mounting, remove the operator and protect it from flying
sparks.
Rest a water level (C18 pos. 1) on the operator body (C18 pos. 2)
and level the operator.
Weld the front mounting of the rod to the gate leaf with two weld-points,
protecting the rod from weld residues with a clean cloth (C19 pos. 4).
Withdraw the jointed head of the operator from the front mounting;
completely remove the operator itself from its temporary mountings,
close off the flange with the correct plug; complete the welding,
covering the pin - using a clean cloth or adhesive tape (C19b pos.
5) - to protect it from weld residue, and then clean off the residue with
a wire brush (C19b pos. 6).
!
Warning
• While 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 make 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.
3.5 FINAL INSTALLATION OF THE OPERATOR
3.5.1 Mechanical fixing
Fix both ends of the operator to the respective mountings.
Front fixing
Spread graphitized-type grease on to the frontal anchorage pin of
the ball joint.
Spread graphitized-type grease on to the ball joint.
Fit the jointed head to the pin and fix in place with the snap ring.
Rear fixing
Fix the operator to the rear mounting using the fork pin (C20 pos. 3)
and the relevant lock nut (C20 pos. 4).
With the gate leaf fully closed, re-check that the rod comes out from
the operator of the defined measure.
C16
C17
C19
C20
27
27
C16b
C18
C19b
G
B
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