Low Pressure Adjustment - Vertical Express I-2 Manual

I-2 / I-3 Valve

Low Pressure Adjustment

August 2019 - 89130 v.3.0
When operating the elevator from the controller, follow all safety precautions.
If the CPU Card is online when the low pressure adjustment is made, temporarily set the
Z44 timer to 10 seconds, and run the motor less than 10 seconds at a time from Inspec-
tion Operation.
1. Ensure that the car is empty and the manual lowering valve is closed.
2. Turn OFF, Lockout, and Tagout the mainline disconnect.
3. Disconnect CON15 on the IO_ Card to disable the valve's up slow solenoid.
4. Turn the low pressure adjustment screw OUT 1
5. Turn the low pressure adjustment screw IN by hand until it touches the
regulator piston.
6. Turn the power ON, and use a runbug to start the motor.
7. Turn the low pressure adjustment screw IN just until the car starts to move.
8. Turn the low pressure adjustment screw OUT until the car movement stops.
9. After the car stops, turn the low pressure adjustment screw OUT an additional one-
half turn.
10. Tighten the locknut.
11. Stop the motor, and turn the power OFF.
12. Reconnect CON15 to enable the valve's up slow solenoid.
3
/ " beyond the cover plate.
4
Valve Tests
19