IMAT 4thGU-E
•
Fit end caps onto the body (50), verifying that the o-ring
remains in the groove.
•
Only for actuators with 50% or 100% stroke adjustment,
ensure that the adjustment screws 221G/222G are
completely screwed into the end-cap.
•
Insert the cap screws (13) and tighten each only partially.
Complete tightening by making 1-2 turns for each screw
in the sequence shown in figure 14 until tightening is
completed. See the table for screw tightening torque.
D) Assembly of stop cap screws (Part 02) and stroke
adjustment for models AT051U→AT801U, figures 15
and 16:
•
Insert on both stop screws (02) the nut (04), the washer
(03) and the o-ring (11).
•
Fit the stop cap screws (02) in the body.
•
Stroke adjustment for actuators with standard type "ST"
rotation / assembly (clockwise to close).
Stroke adjustment in close position: with the actuator in
close position 0°, screw or unscrew the right (from top
view) stop cap screw until the desired stop position is
achieved. Then tighten the stop adjustment nut (04) to
lock it in place.
Stroke adjustment in open position: with the actuator in
open position 90°, screw or unscrew the left (from top
view) stop cap screw until the desired stop position is
achieved. Then tighten the stop adjustment nut (04) to
lock it in place.
For spring return actuators, it could be necessary to
make rotation tests to verify the correct stroke adjust-
ment in open position.
•
Only for actuators with adjustment 50% or 100%, fit on
end-cap adjustment screws 221G/222G the o-rings
11R, the washers 03R and the nuts 04R. To adjust the
stroke in open position: with the actuator in partially or
totally open position, screw or unscrew the end-cap ad-
justment screw 221G/222G until the desired position is
achieved. It is important that the two end-cap adjust-
ment screws are both in contact with the pistons.
Then lock the nuts 04R.
Fig. 15
E) Assembly of graduated ring and position indicator
(Part N° 19,19.0,19.1), figures 17,18 and 19:
•
Fix the graduated ring (19.0) to the body.
•
If necessary, correctly position the "Top Adaptor" (19.5)
and lock it with the proper screws (19.6).
•
Insert the indicator (19 or 19.1) making sure that it indicates
the correct actuator position.
•
Screw the indicator screw (39) if assembled.
7) STORAGE INSTRUCTIONS
If the actuator is not for immediate use, the following
precaution must be taken for storage:
•
Store the actuator in a clean and dry environment and at
temperature between –20°C (-4°F) and +40°C (+104°F).
•
It is recommended that the actuator be stored in its
original box.
•
Do not remove the plastic plugs on air supply ports.
8) LIFTING and HANDLING
It is recommended to lift the actuators with proper, adequate
and permitted systems in relation to the actuator weight and
by following the ruling laws in terms of safety and health
protection. The weight of the actuators is indicated on the Air
Torque catalogue and on the related technical data-sheets.
During the lifting and the handling of the actuators, it is
Fig. 16
recommended to avoid clashes and/or accidental falls in
order to avoid irreparable damages to the actuators and to
compromise the functionality.
Contact Air Torque for any information and technical
data-sheets.
Fig. 17
Fig. 18
GB
Fig. 19
11
