ILG/S gearbox
manual
J+J
Deutschland GmbH, Auf der Hackelmasch 1, 31061Alfeld,
fon +4951816017, Fax.+4951816032
mail:
homepage: www.juj-deutschland.de
6
figure 3 : Gearbox perpendicular to the valve
12.
Fix the gearbox to the valve with nut and ring. In case of use of bolts, for the maximum screwdepth,
see table 1. 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 1 : maximum screwdepth per pitch center diameter
13.
The (fail-close = spring-return) actuator can be mounted on top (see chapter 3).
14.
The assembly is ready for adjustment (see chapter 3).
15.
For another kind of actuator(operation), above mentioned points may not apply to the situation. When
the valve has to opened with the gearbox in case of malfunction of the actuator-system, position the
gearbox in opened position and the driveshaftkey at '12 o'clock'. Be sure the driveshaft can be freely
turned by the actuator, from close to open v.v., without interfering with the wormwheel.
3.
Adjustment of the stopscrews
The gearbox is already mounted on top of the valve (see installation).
This manual only applies to fail-close (clockwise) actuators.
1.
Be sure gearbox and valve are in fully closed position. If not, turn the gearbox in opened position by
turning the handwheel clockwise.
2.
Turn the valve in the fully closed position.
3.
Mount the (spring-clockwise-return) actuator. Do not pressurize the actuator!! Be sure the actuator is
ready for use (stopscrews are adjusted)
4.
Check if the valve is in fully closed position. If not, then adjust the setscrews either of the gearbox or
the actuator.
5.
Turn the handwheel counterclockwise to put the gearbox (and valve) in fully opened position. When the
full open position can not be achieved, loosen the stopscrew-open of the gearbox (see figure 4) and
check the travel stop adjustment of the actuator. Continue turning the handwheel until the valve is fully
opened.
6.
Turn the screw back into the gearbox until blocked (handtight). Secure the stopscrew–open with the
counternut.
