Preliminary Settings; Oil Viscosity And Viscosity Control; Relief Pressure Setting - Vertical Express I-2 Manual

I-2 / I-3 Valve

Preliminary Settings

Oil Viscosity and Viscosity Control

Relief Pressure Setting

August 2019 - 89130 v.3.0
Use extreme caution when making adjustments near moving belts. When operat-
ing the elevator from the controller, follow all safety precautions.
• Verify that the power unit is in a ventilated room that remains between 50°F and 90°F.
• Adjust the valve when the oil is at its operating temperature of 100°F to 170°F.
• Check the unit performance when the oil temperature is no less than 100°F.
• Changes in oil temperature cause changes in valve behavior.
The I-2/I-3 Valve requires a minimum static system pressure of 90 PSI.
1. Ensure that the car is empty.
2. Turn OFF, Lockout, and Tagout the mainline disconnect.
3. Open the manual lowering valve to lower the car onto the buffers. See Figure 1.
4. Close the manual lowering valve.
5. Install a pressure gauge on the quick connector located on the far side of the valve.
6. Turn the relief pressure adjustment screw OUT until
assembly housing, and then tighten the locknut.
Up Leveling
Adjustment
Figure 1 - Relief Pressure Setting
Preliminary Settings
5
/ " extends beyond the relief
8
Manual Lowering Valve
Relief Pressure
Adjustment
5
/ "
8
7