Vertical Express I-2 Manual page 33

I-2 / I-3 Valve
Troubleshooting Flowcharts
(continued)
Yes
Is down speed
adjustment handle
1/2" out of cap?
No
Set at 3/4"
A
Flowchart 10
August 2019 - 89130 v.3.0
Does car
lower at leveling
speed?
Does car
lower at less than
Yes
leveling speed?
Record the number of turns
that the start and stop
adjustments are open.
Was start open
wider than stop?
No
Open start wider than stop.
Yes
Replace valve.
Adjust job.
Flowchart 10
A
Yes
No
Is the down fast
solenoid energized?
Flowchart 10
No
Is there voltage
on coil?
No
No
Not a valve problem.
B
Flowchart 9
Reference Material
Open down start one turn.
Yes
Does car
run faster than
Yes
leveling speed?
No
B
Replace solenoid.
Verify proper performance.
Yes
Replace coil.
Verify proper performance.
31