ADJUSTMENT
Vertical Express Product Manual
2-33
88500 v.1.0
Adjustment Section
I-2/I-3 Valve - Final Adjustments
Performance Check with Full Load
1. Place a capacity load on the car.
2. Run the car on Automatic Operation, and the check performance at all floors. All
valve functions will become firmer at upper landings. If adjustments are
necessary, it will affect the empty car performance.
•
The Down Leveling Speed will increase and the Down Leveling Zone will be
shorter. It may be necessary to change the Down Slowdown adjustment to be
certain there are at least 2 inches of leveling.
•
If necessary, turn IN on the Down Slowdown to increase the leveling zone.
•
The Up Leveling Speed will increase. The Up Leveling Zone will change between
no load and full load. Do not change any adjustments made with no load if there
is at least 1 inch of Up Leveling Zone with a full load.
•
If necessary, turn OUT on the Up Slowdown adjustment to increase the Up Level-
ing Zone.
3. Verify that the car is obtaining full speed in both directions on a one-floor run.
4. Record the working pressure in the up direction. The working pressure value will
be used in the next procedure.
5. Remove the capacity load from the car.
Final Relief Pressure with Full Load
1. Place the controller on Inspection Operation, close the line shut-off valve,
and set Z44 = 10 seconds.
2. Start the pump, and read the relief pressure.
Do Not adjust the relief pressure to 150%, as allowed by code, unless the
entire hydraulic system has been replaced.
3. Add 25% to the working pressure recorded in step 4 of the previous procedure,
and set the relief valve to relieve at this new pressure value.
4. Stop the power unit, and tighten the locknut on the relief pressure adjustment.
5. Re-check the relief pressure.
Immediately stop the power unit if the pressure exceeds 625 PSI.
6. Open line shut-off valve, place car on Automatic Operation, and reset Z44 = 2.
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