ILG/S gearbox
manual
J+J
Deutschland GmbH, Auf der Hackelmasch 1, 31061Alfeld,
fon +4951816017, Fax.+4951816032
mail:
homepage: www.juj-deutschland.de
4
Correct use
Prior to installation, be sure the gearbox will NOT be overloaded during normal use. For this, convince yourself
the valvesize and needed opening and closing torque do not exceed the values given for the gearbox. For the
maximum allowable torque of the gearbox, see table 1.
Rotork Gears bv is not responsible for any damage caused by incorrect use of the gearbox.
Installation en operating
Not observing and following the rules as stated in this manual can lead to damage and / or personal injuries. The
qualified personel must be fully aware of the instructions as descibed in this manual.
Only when the instructions are observed, correct operation of the gearboxes can be garanteed.
Disposal
Never refuse a gearbox at a general disposal unit. The gearbox has to be offered to a disposal depot for recycling.
The iron parts can be used for recycling . The seals are of nitrile and can be used for plastic recycling.
The grease may not be discharged to sewer- or surface water. It has to be disposed according to local regulations
for incineration.
2.
Installation : mounting to the valve
The ILG/S is a sandwich manual override quarter turn gearbox for single acting, quarter turn, pneumatic or
electric actuators.
For maximum allowable input- and outputtorque, refer to table 1 or the (not included) datasheet.
This manual describes the installation of the gearbox and its parts. The intention is to open a valve with the
gearbox in case of a failing actuator system. If the power supply fails the spring returns the actuator (and valve)
to the “secure” (closed) pos ition.
1.
The gearbox is standard delivered in closed position.
2.
It is recommended to mount a handwheel on the inputshaft prior to assemble the gearbox to the valve.
3.
Check if the boltcircle of the flanges (of gearbox and valve) coincide. Also check if the valvestem and
the bore of the driveshaft match.
4.
Make sure the valve is in the fully closed position. If not, close the valve before continuing.
5.
For fail-close actuators (90° clockwise close), the gearbox has to be positioned fully closed. This is
achieved by turning the handwheel clockwise.
6.
In case of use of studbolts for fixing the gearbox to the valve, it is recommended to screw them into
the bottomflange of the gearbox prior to mounting the gearbox on top of the valve.
7.
The use of a gasket between the flange of the valve and gearbox is recommended.
