Moistener System
The moistener system supplies a pressurized solution of water
and spindle cleaner to clean spindles in the picking units during
normal operation. The spindles are cleaned by contact with pads on
the moistener column and the flow of solution through the pads and
onto the spindles.
A solution pump draws solution from the tank and delivers the
solution to a distribution chamber on each picking unit. Solution
delivery pressure can be adjusted as necessary to minimize buildup
on spindles as follows:
-
Press solution pressure button on armrest control console. Current
pressure is displayed on the armrest display unit (ADU).
-
Rotate selection dial on console to change setpoint.
-
The new setpoint is sent to the cab control unit (CAB) which
in turn sends a message to the header interface control unit (HIC).
The HIC control unit monitors the actual solution pressure signal
from a pressure sensor in the output line and compares the actual
value to the setpoint value. The HIC control unit actuates the water
pressure adjustment valve as necessary to reach the new setpoint.
A flush feature is provided to send a larger amount of solution
to each moistener pad to assist in cleaning spindles when needed.
The flush function is initiated by the operator. When the flush button
on the armrest control console or multifunction control handle is
pressed, a signal is sent to the CAB control unit. The CAB control
unit sends a message to the HIC control unit which then energizes
the flush valve solenoid to provide additional solution to the moistener
pads.
| Symptom | Problem | Solution |
|
Open cotton bolls left on plants.
| Moistener system not adjusted, operated, or cleaned
properly. |
Clean system and check
solution pressure.
|
| |
Moistener system malfunction.
|
Check for correct amount of solution being dispensed
for operating conditions.
Check solution strainer
in power module and clean as necessary.
Clean nozzles in picking
units.
|
|
Picker drops cotton
| Suction doors too wet. |
Adjust solution pressure.
|
| |
Moistener system malfunction.
|
Check solution mix ratio and solution pressure.
|
|
Plugging in suction doors or ducts.
| Wet suction doors. |
Increase spindle cleaner
mix ratio and decrease pressure setting.
|
|
Spindles not doffing.
| Moistener system not adjusted, cleaned, or operated
properly. |
Clean and adjust moistener
system. Operate flush system.
|
| |
Moistener system malfunction.
|
Check for correct amount of solution being dispensed
for operating conditions. Check solution mix ratio.
|
|
Spindles coated with green stain.
| Moistener system not cleaned, adjusted, or operated
properly. |
Clean and adjust moistener
system. (See REACTING TO SPINDLE BUILDUP in Moistener System section.)
|
|
Excessive wear on moistener pads.
| Moistener system malfunction. |
Check moistener system
for proper operation.
|
|
Loss of pressure in moistener system.
| Belt broken or slipping. |
Replace belt or adjust
tension.
|
|
Solution pressure unstable. Cannot regulate pressure
correctly.
| Solution strainer restricted. |
Remove and clean strainer.
Bleed air from system.
|
| |
Air trapped in system.
|
Open drain valve in bottom of solution pump. Open bleed
valve by solution strainer. Engage fans and operate until clear stream
of water is present at both valves.
Close drain and bleed
valves.
|
| |
Solution pump belt tension too loose.
|
Adjust belt tension.
|
| |
Check valve on solution tank restricted or defective.
|
Remove and inspect check valve. Replace valve as necessary.
|
| |
Solution pressure regulator valve binding or defective.
|
Inspect regulator valve and replace as necessary.
|
|
Water running out through row units when machine is parked
overnight.
| Diaphragm check valve assembly dirty or defective.
|
Clean or replace check
valve as necessary.
|
|
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DP99999,00006C6-19-20110602
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