Gearbox ILG/D
manual
Rotork Gears bv
5
9.
Fasten the gearbox to the valve with nut and ring. In case of use of bolts, for the maximum
tappingdepth, see table 2. For tightening, refer to standard VDI 2230.
PCD
F05
F07
F10
F12
F14
F16
F25
F30
F35
F40
max. screw depth
8
11
13
16
18
18
18
18
30
36
table 2 : maximum tappingdepth per pitch center diameter
10.
The 3/2-valve is optional and meant for gearbox mode detection. The 3/2 ventvalve is open (and vents
to atmosphere) with the gearbox in manual mode.
P
A
R
Figure 2 : port designation
11.
The assembly is now ready for adjustment. (see chapter 3).
3.
Adjustment of the stopscrews
The gearbox is mounted on top of the valve (see installation).
1.
In case of a pneumatic actuator, be sure the actuator depressurised.
2.
Put the gearbox in the manual-mode by turning the handle 90 degrees counter clockwise (see 'operating'
and/or figure 5: 1->2->3)
3.
Turn the valve into fully closed position by turning the handwheel clockwise.
When the fully closed position can not be achieved, loosen the stopscrew-close (see figure 2). Continue
turning the handwheel until the valve is fully closed.
4.
Turn the screw back into the gearbox until blocked (handtight). Secure the stopscrew–close with the
counternut.
Figure 3 : ILG/D gearbox stopscrew adjustment
5.
Open the valve by turning the handwheel counter-clockwise. When the fully open position can not be