Ref. 5.670B_UK - 2014-02-19. www.axel-larsson.
se
MANUAL
Electrial actuator AL 78-015 - AL 78-250
4. Adjust the indicator disc for visual indication so that it relates to the valve
WARNING! Remove power before the position.
cover is dismantled! The actuator must 5. Test run the actuator and check that the limit indicators are working
be handled with the utmost care when the correctly.
cover is removed and the power connected! 6. Mount the cover.
(a) Adjustment of cams for limit switches:
Installation 1. Operate the actuator manually to closed position.
2. Adjust the cam for closed position (lower cam marked CLS).
1. Mounting on valve, see instruction A.
2. Electric wiring, see instruction B. 3. Operate the actuator manually to open position.
3. Adjustment, see instruction C. 4. Adjust the cam for open position (upper cam marked OLS).
4. Manual operation, see instruction D.
5. Test run the actuator.
NOTE:
Only electric wiring, acc. to instruction B, (b) Adjustment of mechanical limit stops for soft-seated valves:
is required when the actuator is delivered 1. Operate the actuator electrically to closed position.
from Remote Control mounted on a valve.
It is adjusted and ready for operation. 2. Adjust the right set screw for closed position so that it makes con-
tact, back one turn and tighten the lock nut.
3. Operate the actuator electrically to open position.
A - Mounting on valve 4. Adjust the left set screw for open position so that it makes contact,
back one turn and tighten the lock nut.
1. Operate the valve manually to fully open or fully closed position before the
actuator is mounted. (For adjustment of metal-seated butterfly valves, contact Axel Larsson)
2. Operate the actuator manually (see instruction D) to fully open or fully
(c) Adjustment of torque switches:
closed position.
The torque switches are adjusted from factory to protect actuator
3. Check that the actuator and valve stem are in correct position. Please note,
valve and actuator must be in the same mode (fully open / fully closed) prior to and valve against overloading and should normally not be adjusted.
the assembly. Should adjustment however be necessary, please contact our us before
adjusting.
4. Mount the actuator on the valve and check that the actuator and valve stems
are centered and aligned. If a mounting bracket is
used, the fit must be checked so that no distortion or play exists. D - Manual operation
5. Operate the valve manually with the aid of the actuator handwheel and check 1. Pull the engagement lever towards the handwheel until it remains in
that the valve moves with normal resistance. position.
6. Check that all screws are correctly tightened 2. Turn the handwheel until the valve reaches the required position.
3. Turn clockwise to close and anti-clockwise to open.
B - Electric wiring
NOTE: The engagement lever returns automatically
NOTE: Electric wiring must be carried out to auto-position when the actuator is operated electrically.
by qualified personnel only!
1. Loosen the screws on the cover and lift it off.
2. Check the voltage marked on the actuator label.
3. Connect according to the enclosed wiring diagram or, if the actuator is of
standard design, according to the wiring diagram below. The wiring diagram is
drawn in unaffected position (the valve in intermediate position).
4. Test run the actuator from the intermediate position checking that the actua-
tor turns in the correct direction.
5. Test run the actuator and check that the limit switches work correctly.
6. Check that the cable entries and possible blind plug are sealed.
7. Mount the cover.
C - Adjustment
1. Make the final cam adjustments for the limit switches (if necessary) acc. to
instruction (a) below.
2. Make the final adjustments of the mechanical limit stops (if necessary) acc. to
instruction (b) below.
3. Run the actuator from one end position to the other a number of times.
5.670B_UK - 1
Ref. 5.670B_UK - 2014-02-19. www.axel-larsson.se
MANUAL
Electrial actuator AL 78-015 - AL 78-250
Wiring diagram
Design and specifications subject to change without prior notice.
Telephone +46 10 455 97 00 • sales@axel-larsson.se • www.axel-larsson.se
STOCKHOLM GÖTEBORG MOTALA KARLSTAD FALUN SKELLEFTEÅ
5.670B_UK - 2
Head Office: Truckvägen 12, P.O. Box 805, SE-194 28 Upplands Väsby (Stockholm), Sweden.
