RIB IDRO C 27/1B Manuel D'instructions page 33

3.4
POSITIONING THE FRONT MOUNTING
Smear the hole of the operator rod with grease (C16 pos. 1). Position
the end of the rod into the front mounting (C16 pos. 2), then fit the
locking pin (C16 pos. 3) without tightening the snap rings (C16 pos.
4).
If it has been decided to use the maximum useful length of the rod
(distance A+B = useful piston stroke length), proceed as follows:
• Position the key (see paragraph 5) onto the unlock screw and
rotate counter-clockwise to hand-unlock the operator.
• Slowly extend the rod to end stroke.
• Withdraw the rod of 5 mm.
• Protect the rod (C19 pos. 3).
• Perfectly clean the welding zone for the front mounting with a
suitable tool (C17 pos. 4); be especially sure to remove any traces
of paint or zinc coating.
!
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 rod from the front mounting and remove the operator
itself from the temporary mountings to complete the welding. Protect
the pin (using a clean cloth or adhesive tape) from weld residues, then
clean off the residues with a wire brush.
After cooling, apply a coat of rustproof paint to the welded
!
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.
3.5 FINAL INSTALLATION OF THE OPERATOR
3.5.1 Mechanical fixing
Fix both ends of the operator to the respective mountings.
Front fixing
Smear the front anchoring pin of the ball-joint and the rod with
graphitized grease.
Position the end of the rod into the front mounting (C16 pos. 1). Fit the
locking pin (C16 pos. 3) and fix with the snap rings.
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
zone.
C19
C20


C18
G
B