Gearbox ILG/D
manual
Rotork Gears bv
6
achieved, loosen the stopscrew-open (see figure 3). Continue turning the handwheel until the valve is fully
open
.
6.
Turn the stop-screw back into the gearbox until blocked (handtight). Secure the stopscrew–open with the
counternut.
7.
Close the valve completely with the handwheel.
8.
Pull the knob outwards (1) and turn the handle (clockwise) until knob falls back into its locked-position
(3).
9.
Adjustment completed. The gearbox is now ready for manual or automatic operation
.
10.
Prior to mounting an actuator,
a.
adjust the stopscrews.
b.
position the driveshaft (see figure 4) in top of the gearbox.
c.
make sure the actuator is in closed position.
Figure 4 : Driveshaft example from an ILG/D gearbox
4.
Operating
The ILG/D is a manual declutchable override quarter turn gearbox for double acting pneumatic or electric
actuators.
For maximum allowable input- and outputtorque, refer to table 1.
The gearbox is delivered in automatic mode: valve-operating by actuator.
1.
The gearbox is manually operated by handwheel.
2.
Prior to manual operation, the gearbox has to be put into manual mode. To achieve this, refer to figure 5
and follow the next points :
i.
Pull the knob outwards (1). Secure the knob in this position.
ii.
Turn the handle counter clockwise (2) and release the knob. Continue turning the handle until the knob
falls back into locking position (3).
NB
When the handle can not be fully turned over ±90°, turn the handwheel slightly. Continue turning the
handle until full engagement is achieved (knob returns to start position).
iii.
The gearbox is ready for manual operation.
