adjusting movement
valve body
diaphragm
hexagon nut
pencil-marks:
for the stops
for the central position
Adjusting the diaphragm system (119, 260)
Fig. 2:
Diaphragm System
Torque
item no. torque
M in Nm
6
12
20
A
Union piece (158)
Grease the threaded plug of the completely assembled union piece with LOCTITE and srew it into the metal harmonica
connection piston (173) so that the cross hole of the union piece is positioned 0,5 mm to 1mm below the valve body
(171) cross hole.
Attention:
Both cross holes must be in alignment.
Valve insert (105, 156, 278)
Use the adjusting screw (124, 185, 284) to get the diaphragm system in a position that will allow the valve insert to be
fitted.
Base plate (1)
The locating faces of the load limiting and control unit base plates must be adjusted even to each other.
Spindle (33) of the amplifying valve
For basic adjustment of the amplifying valve turn the spindle (33) so far, that the spindle groove (with a black mark)
comes in line with the front edge of the sleeve (31) fixed in the guiding screw (32).
176
4, 114, 115, 132, 165, 183, 251, 267, 271, 272
103, 123, 167, 258, 280
630.20 p.4
For correct fitting of the diaphragm system into a safe position in which the cross holes of the union piece (122, 263)
and of the valve body (121, 261) are in true alignment: turn diaphragm clockwise and anti-clockwise to the stops to
find the central position.
