Vertical Express I-2 - Quick Reference

I-2 / I-3 Valve Reference Material
August 2019 - 89130 v.3.0 63
Quick Reference
Slowdown and Floor Approach
This illustration explains the effects of slowdown point and rate adjustments on car stabilized leveling distances. These
adjustments should be referenced as needed, specifically during final valve adjustments or subsequent service calls.
Top
Speed
Car Position
3"-4" of
stabilized leveling
P17/P18
Selector Slowdown Point
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Car
Speed
Floor
Level
Floor
Level
Top
Speed
Car Position
Car
Speed
Floor
Level
Floor
Level
3"-4" of
stabilized leveling
P17/P18
Selector Slowdown Points
P17/P18
too large
(excessive leveling distance)
33WRRVPDOO
(no leveling distance,
car re-levels)
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WKHYDOYHEXWUHVXOWVLQLQFRUUHFWOHYHOLQJGLVWDQFH"-4"PRYHWKH33
6HOHFWRU6KRZGRZQ3RLQWSURSHUO\
Top
Speed
Car Position
Car
Speed
Floor
Level
Floor
Level
3"-4" of
stabilized leveling
P17/P18
Selector Slowdown Point
Valve Slowdown too soft
(no leveling distance,
car re-levels)
Valve Slowdown
too aggressive
(excessive leveling distance)
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WKHOHYHOLQJGLVWDQFH,IWKHFDUVKRZGRZQSRLQW33LVVHWEXWOHYHOLQJLVLQFRUUHFWQRW"-4"),
PRYHWKH9DOYH6ORZGRZQ6FUHZ
• UP SLDN Screw: IN = Shorter leveling distance, increased leveling speed, softer feel to slowdown.
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6HWIRUDWOHDVW"RIOHYHOLQJZLWKDIXOOORDGDQGLQFUHDVH3
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Use either of these:
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