ES-A-ACV-LF984GD 2115
STEP 9
Opening Speed Flow Control Adjustment:
The Opening speed
flow control allows free flow into the cover and restricted flow out
of the cover of the main valve.
If valve opening is too slow, turn the adjustment screw OUT,
counterclockwise, increasing the rate of opening (See Figure 3B).
If valve opening is too quick, turn the adjustment screw IN, clock-
wise, decreasing the rate of opening (See Figure 3A).
STEP 10
De-energize the solenoid to check that the main valve closes.
STEP 11
Closing Speed Needle Valve Adjustment: The closing speed
needle valve regulates fluid pressure into the main valve cover
chamber, controlling the valve closing speed.
If valve closing is too slow, turn the adjustment screw OUT, coun-
terclockwise, increasing the rate of closing.
STEP 12
At valve closure booster pump will stop. Adjust limit switch collar
to final position to ensure positive actuation of limit switch elec-
trical contact, if necessary, by sliding up/down to location (See
Figure 4).
Figure 4
Limit Switch in Closed Position
20
Counterclockwise to INCREASE
the rate of opening
Clockwise to DECREASE
rate of opening
3A
3B
Figure 3
Flow Control
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