Low Pressure Setting - Vertical Express I-2 Manual

Preliminary Settings
Preliminary Settings
(continued)

Low Pressure Setting

Up Start
Adjustment
Low Pressure
Adjustment
Up Leveling
Adjustment
8
OUT = Counterclockwise (CCW), IN = Clockwise (CW)
1. Turn the low pressure adjustment screw OUT 1
2. Turn the low pressure adjustment screw IN by hand until it touches the regulator piston.
3. Turn the up leveling adjustment screw OUT until it stops.
4. Turn the up leveling adjustment screw IN 4 turns.
Adjustment Needles
To make adjustments, do not loosen the nuts on the adjustment needle stems. The nuts
must be snug against the valve body at all times.
1. Turn the up start, up stop, and up slowdown adjustments IN to the fully closed position.
See Figure 2.
2. Turn the up start adjustment OUT 9 turns.
3. Turn the up stop adjustment OUT 3 turns.
4. Verify that the up slowdown adjustment remains closed.
Up Stop Adjustment
Figure 2 - Valve Adjustments
3
/ " beyond the cover plate. See Figure 2.
4
Up Slowdown Adjustment
I-2 / I-3 Valve
Lowering and Leveling
Speed Adjustment
Down Slowdown
Adjustment
Down Stop
Adjustment
Down Start
Adjustment
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