HP Series Pneumatic Actuator
Installation Operation & Maintenance Manual
Document No. HUMG-HP-16 Rev0
Page 13 / 18
4.2.2.
Adjustment for OPEN
Loosen NUT a little to adjust OPEN STOP BOLT like picture on the
right-hand.
Make actuator OPEN position by air like picture on
the left-hand.
Adjust and fix STOP BOLT using hex-wrench.
- Clockwise : OPEN-
- Counterclockwise : OPEN+
Tighten and fasten NUT while STOP BOLT is
being fixed by hex-wrench.
4.3.
HP Series Spring Sets
ASSEMBLY
SET #5
SET #6
SET #7
SET #8
SET #9
SET
#10
SET
#11
SET
#12
Caution! If the actuator is a
"spring return" model, uniformly loosen
all end caps screws, two to three turns
at a time, in sequence, to relieve pre-
load of the springs.
On all actuators with springs use
caution when removing end caps.