Positioning Of Mountings; Preparing The Rear Mounting; Preparations For Rear Operator Mounting On Iron Posts - Aprimatic ZT40 4M Instructions Pour L'installation

Installation
3.1

POSITIONING OF MOUNTINGS

The following table (C1) gives the recommended data for fi xing the position of the operator mountings in relation to the center of rotation
of the gate leaf. The distances A and B will give:
• The useful stroke length (C) of the piston
• The peripheral speed of the gate leaf
• The angle of maximum opening of the gate leaf
• The holding capacity of the lock in relation to distance E (which must always be less than B when the operator is fitted with a
hydraulic lock); the distance E is obtained, in practice, by measuring the distance between the front attachment fulcrum to the
gate hinge axis (see fi g. C1).
Caution
• The sum A+B corresponds to the useful stroke length of the piston (C) for a 90° opening of the gate leaf.
• The minimum value of distances A and B is 70 mm, and the maximum is 130 and 140 mm respectively for operator type
ZT40 4M, 90 and 300 mm for type ZT40 7M.
• If possible, distances A and B must be equal in order to have a uniform peripheral speed.
• When A+B is greater than 270 mm, use operator type ZT40 7M; this avoids the necessity of having to cut insets in the posts.
• If the gate leaf is to open by more than 90°, fi rst of all fi nd the best A and B measurements for mounting, and then reduce
distance B to the desired opening angle, making sure, by checking the distance Y, that the corner of the post doesn't
interfere with the operator action.
!
Warning
• The greater the distance B in relation to E, the more effi cient the holding capacity of the hydraulic lock (for all types of operator).
• If the gate leaf is closed with an electric lock, then E must always be less than or equal to distance B (never greater).
C1

3.2 PREPARING THE REAR MOUNTING

3.2.1 Preparations for rear operator mounting on iron posts

Clean the welding zone for the rear mounting perfectly
with the correct tool (C2 pos. 1); be especially sure to
remove any traces of paint or zinc coating.
Place a strengthening plate of minimum thickness 5
mm (C3 pos. 2) on the column, covering it from edge
to edge, in the rear mounting welding zone. The size
of the strengthening plate must be in proportion to the
size of the column. For the fi nal fi tting of the mounting
(C3 pos. 3), see the section: "fi tting the rear operator
mounting", chapter 3.6 in this manual.
DISTANCES IN MILLIMETRES
ZT 40 4M
ZT 40 7M
C2
- 18 -
C
L A B Y Max.
1200
÷ 130 140 275
4000
7000 190 200 390
220
R
90
C3