Vertical Express I-2 - Page 58

Reference Material I-2 / I-3 Valve
56 ©Vertical Express
Sequence of Events
(continued)
Figure 7 - Full Speed Diagram
TANK
MAIN FLOW
CONTROL FLOW
Relief Pressure Adjustment Screw
High-Pressure
Relief Pilot
Up Slow Solenoid
(Closed)
Up Slowdown
Adjustment
Pressure Control
Piston
Up Stop
Adjustment
Up Pilot Piston
Up Fast Solenoid (Open)
Up Start Adjustment
Up Leveling Speed Adjustment
Check Valve Piston
PUMP JACK
Regulator Piston
Low
Pressure
Adjustment