VEGA ARV60.CB4 up to 64 bar - Manual (Page 4)

4 Lock fitting ARV60.CB4 up to 64 bar
2 Mounting
2.1 Mounting procedure
The numbers in brackets relate to the dia-
grams on the following pages.
• Loosen the holding screw (5) and remove
the lock fitting bracket (3).
• Unscrew the pressure screw (10) from the
mounting boss.
• Screw the mounting boss (6) with a resist-
ant seal ring into the thread of your vessel
and tighten the mounting boss (6) with the
hexagon (SW 46).
• Now unpack the new laminated and graph-
ite packing rings. The graphite packing
rings (8) have a plain cylindrical surface;
laminated packing rings (7) can be easily
recognised by their rougher cylindrical
surface and the laminated structure.
Make sure that the graphite packing rings
are not damaged. Damaged rings do not
ensure tightness. If you are not sure, use
new rings (article no. 2.26486).
• First of all, place one of the two laminated
packing rings (7) into the mounting boss
(6). Then place the two graphite packing
rings (8) on top, followed by the second
laminated packing ring (7).
• Place the metal compression ring (9) onto
the stack of packing rings.
• Screw the compression screw (10) with a
few turns from the top into the mounting
boss (6).
• Carefully remove grease, oil and dirt from
the extension tube of the sensor and the
surfaces of the clamp (11) and the com-
pression screw (10) and insert the sensor
into the lock fitting. Move the tube to the
desired position and hold it firmly.
• Make sure that the sensor is in the correct
position (height). Please note that with the
height adjustment of the sensor, you also
determine the switching point.
• Tighten the compression screw (10) with a
torque of 80 ±10 Nm .
• Turn the compression screw (10) clockwise
until the hexagon surfaces of the compres-
sion screw (10) and the mounting boss (6)
are aligned (max.
1 /
6
turn).
• Tighten the screws (2) alternately with
uniform torque. Make sure that the gap
between clamp and compression screw is
in parallel. Fasten the screws up to a
torque of
7 ±2 Nm . The clamp (11) is
thereby pressed against the tube, fixing
the tube of the sensor in this position.
• Fasten the lock fitting bracket (3) with the
holding screw (5) and the spring ring (4)
laterally against the mounting boss (6).
This secures the compression screw and
the clamp screws against unintentional
loosening.
Mounting