|
Zero pressure with spray system operating
| Solution tank empty. |
Fill tank with solution.
Check tank for leaks or damage.
|
| |
Solution pump fuse faulty.
|
Replace fuse.
|
| |
Solution pump bleed line kinked or forms traps.
|
Unkink bleed line.
|
| |
Solution pump bleed line plugged.
|
Unplug pump bleed line.
|
| |
Suction line plugged or collapsed.
|
Clean or replace suction
line.
|
| |
Spraying in transport speed mode.
|
Shift to field speed
mode.
|
| |
Plugged solution lines.
|
Unplug and flush.
|
| |
Boom strainer plugged.
|
Remove, clean and install
strainer.
|
| |
Solution pump is not primed.
|
Prime solution pump.
(See Priming Solution Pump with Rinse System (Nurse Tank Fluid Level
Even or Below Sprayer Pump) in Wet System section.)
|
| |
Solution pump impeller clogged.
|
Separate pump housing
and clean impeller.
|
| |
Low or no hydraulic oil.
|
Fill hydraulic reservoir
with specified hydraulic oil up 12.7 - 25.4 mm (.5 to 1 in.) from
bottom of sight tube.
|
| |
Dirty or plugged flowmeter.
|
Remove, clean and install
flowmeter.
|
| |
Solution tank valve not opening.
|
See your John Deere
dealer.
|
| |
Proportional valve electrical connection faulty.
|
Clean, replace or repair
connection.
|
| |
Nut on solution pump impeller came off.
|
Install solution pump
impeller nut.
|
| |
Pressure sensor inoperative.
|
See your John Deere
dealer.
|
| |
Shaft between solenoid pump and hydraulic motor faulty.
|
See your John Deere
dealer.
|
| |
Hydraulic motor faulty.
|
See your John Deere
dealer.
|
| |
Solution pump failure.
|
See your John Deere
dealer.
|
| |
Proportional valve assembly faulty.
|
See your John Deere
dealer.
|
| |
Hydraulic pump faulty.
|
See your John Deere
dealer.
|
| |
Hoses between reservoir, hydraulic pump priority valve,
proportional valve assembly, and motor faulty.
|
See your John Deere
dealer.
|
| |
Bypass/Agitation valve not closing.
|
See your John Deere
dealer.
|
| |
Eductor/Rinse valve not closing.
|
See your John Deere
dealer.
|
| |
Pressure Sensor calibration incorrect
|
Perform pressure sensor
calibration. (See Calibrating Pressure Sensor in SprayStar System
Section.)
|
| |
Load station control panel switches in wrong positions.
|
Check switch position
in cab and on panel.
|
| |
Vehicle target speed set in transport range.
|
Check vehicle speed
on GreenStar display.
|
|
Low solution pressure reading.
| Low engine rpm. |
Operate engine at full
throttle.
|
| |
Nozzle tips worn.
|
Replace nozzle tips
with new tips properly calibrated for current application.
|
| |
Solution pump impeller clogged.
|
Separate pump housing.
Remove and clean impeller.
|
| |
Suction line partially blocked or collapsed.
|
Clean, repair or replace
suction line as necessary.
|
| |
Air leak in suction line.
|
Repair or replace suction
line.
|
| |
Flow rate valve in wrong position.
|
Turn flow rate valve
to correct position. (See Adjust Flow Rate Valve For Low Application
Rates in Wet System section.)
|
| |
SprayStar not programmed properly.
|
Setup SprayStar. (See
Setup SprayStar in SprayStar System section.)
|
| |
Pressure line leaking.
|
Repair or replace pressure
line as necessary.
|
| |
Low or no hydraulic oil.
|
Fill hydraulic reservoir
with specified hydraulic oil up 12.7 - 25.4 mm (.5 to 1 in.) from
bottom of sight tube.
|
| |
Pressure sensor faulty.
|
See your John Deere
dealer.
|
| |
Pressure valve faulty.
|
See your John Deere
dealer.
|
| |
Vehicle speed too slow or nozzles to large for target
application rate.
|
Select faster target
speed or select correct nozzles for speed.
|
| |
Nurse fill system causing air in sprayer system.
|
Check for air leaks,
loose clamps, and damaged hoses. Verify valve on nurse tank hose at
end of hose.
|
| |
Solution tank valve not opening.
|
Check solution tank
valve position.
|
| |
Bypass/Agitation valve not closing.
|
See your John Deere
dealer.
|
| |
Eductor/Rinse valve not closing.
|
See your John Deere
dealer.
|
| |
Pressure Sensor calibration incorrect.
|
Perform pressure sensor
calibration. (See Calibrating Pressure Sensor in SprayStar System
Section.)
|
| |
Pressure strainer plugging.
|
Remove or replace with
coarser mesh screen.
|
|
High solution pressure reading during spraying operation
| Boom in-line strainers (if equipped) partially or completely
plugged. |
Clean strainers.
|
| |
Spray nozzles plugged.
|
Clean and inspect nozzles.
Check orifices and calibration of nozzles. Replace nozzles as necessary.
|
| |
Boom supply hoses partially or completely plugged.
|
Clean out hoses.
|
| |
SprayStar not programmed properly.
|
Setup SprayStar. (See
Setup SprayStar in SprayStar System section.)
|
| |
Incorrect Sprayer Response min/max setting.
|
Enter correct min/max
setting in SprayStar display. (See Setting Sprayer Response in SprayStar
System section.)
|
| |
Minimum pressure set too high.
|
Lower minimum pressure
setting.
|
| |
Dirty or faulty flowmeter(s).
|
Clean, repair or replace
flowmeter(s) as needed.
|
| |
Boom shut-off valves faulty.
|
See your John Deere
dealer.
|
| |
Pressure sensor faulty.
|
See your John Deere
dealer.
|
| |
Faulty proportional valve assembly.
|
See your John Deere
dealer.
|
| |
SprayStar Display faulty.
|
See your John Deere
dealer.
|
| |
Vehicle speed too fast or nozzles to small for target
application rate.
|
Select slower target
speed or select correct nozzles for speed.
|
| |
Pressure sensor not calibrated.
|
(See Calibrating Pressure
Sensor in SprayStar System Section.)
|
|
Solution pressure rate reading varies or is erratic.
| Flowmeter(s) dirty or stuck. |
Clean flowmeter(s) with
John Deere Brake and Parts Cleaner (Part No. TY26101).
|
| |
Minimum spray pressure setting entered in SprayStar
too high. Pressure set too close to operating pressure so system becomes
unstable.
|
Determine minimum pressure
required and enter into SprayStar. (See Setting Minimum Pressure in
SprayStar System section.)
|
| |
Solution contains heavy solids (poor mixture).
|
Check agitation line
and valves. Be sure agitation jets are not clogged.
|
| |
Air in system.
|
See Recommendations
For Eliminating Air From Solution System in wet section.
|
| |
Sprayer Response min/max value in controller adjusted
too high.
|
Lower response setting
in SprayStar display. (See Setting Sprayer Response in SprayStar System
section.)
|
| |
Boom charge not set correctly.
|
Set boom charge correctly.
(See Setting Boom Charge in SprayStar System section.)
|
| |
Boom supply hoses to booms partially plugged or collapsed.
|
Remove and inspect solution
hoses to booms. Clean or replace hoses as necessary.
|
| |
Faulty proportional valve assembly.
|
See your John Deere
dealer.
|
| |
Pump calibration A and B values out of range.
|
Calibrate sprayer pump.
(See Calibrating Solution Pump in SprayStar section.)
|
|
Will not maintain 965 kPa (9.65 bar) (140 psi) “dead
head” pressure with standard pump or 827 kPa (8.27 bar) (120
psi) “dead head” pressure with high flow pump.
| Worn impeller in solution pump. |
Replace impeller or
(See your John Deere dealer.)
|
| |
Pump “B” value incorrect.
|
Calibrate sprayer pump.
(See Auto Calibrating Sprayer in SprayStar section.)
|
| |
Bypass/Agitation and Eductor/Rinse valves are not closed.
|
See your John Deere
dealer.
|
| |
Faulty solution pump.
|
Repair or replace solution
pump.
|
| |
Hydraulic standby pressure set too low.
|
See your John Deere
dealer.
|
| |
Faulty proportional valve.
|
Replace proportional
valve.
|
| |
Faulty hydraulic pump.
|
See your John Deere
dealer.
|
|
Tank volume does not count down.
| Flowmeter(s) calibration value incorrectly entered in
SprayStar display. |
Enter correct calibration
information in SprayStar display. (See Setting Flowmeter(s) Calibration
Number in SprayStar System section.)
|
| |
Flowmeter(s) wiring harness disconnected.
|
Connect flowmeter(s)
wiring harness connector.
|
| |
Flowmeter(s) plugged or dirty.
|
Clean flowmeter(s) with
John Deere Brake and Parts Cleaner (Part No. TY26101).
|
| |
Flowmeter(s) connector pins corroded.
|
Clean connector.
|
| |
Flowmeter(s) wiring harness damaged.
|
Repair or replace wiring
harness.
|
| |
Flowmeter(s) installed backwards.
|
Remove and install flowmeter(s)
correctly. (Arrow located on flowmeter body indicates direction of
flow.)
|
| |
Speed sensor faulty.
|
See “speed”
Indicates “0” in this section.
|
| |
Spray not discharging from nozzles.
|
Refer to No Discharge
From Nozzles symptom in this group.
|
| |
Flowmeter(s) faulty. There are no gallons per minute
when running in “AUTO” or “Manual”. There
is no herzt signal from flowmeter in sensor status when flowing fluid
through flowmeter.
|
See your John Deere
dealer.
|
|
Tank volume count down is incorrect.
| Flowmeter(s) calibration value incorrectly entered in
SprayStar display. |
Enter correct calibration
information in SprayStar display. (See Setting Flowmeter(s) Calibration
Number in SprayStar System section.)
|
| |
Flowmeter(s) partially plugged or dirty.
|
Clean flowmeter(s) with
John Deere Brake and Parts Cleaner (Part No. TY26101)
|
| |
Flowmeter(s) connector pins corroded.
|
Clean connector.
|
| |
Flowmeter(s) wiring harness damaged.
|
Repair or replace wiring
harness. See your John Deere dealer.
|
| |
Solution contains heavy solids (chemicals not properly
mixed with the water).
|
(See Solution Contains
Heavy Solids symptom in this group.)
|
| |
Air leak in suction side of pump.
|
Repair air leak.
|
| |
Speed sensor faulty.
|
(See “speed”
Indicates “0” in this section.)
|
| |
Display set to high flow but valve to second flowmeter
closed.
|
Open valve to second
flowmeter.
|
| |
Display set to low flow but valve to second flowmeter
open.
|
Close valve to second
flowmeter.
|
| |
Ground not level for measuring tank volume.
|
Park in level location
when filling.
|
|
Application rates and acre counter are incorrect in job
summaries.
| Excessive spray overlap. |
Adjust spraying to keep
spray overlap to a minimum.
|
| |
Large gap between sprayer passes.
|
Adjust spraying to minimize
gaps.
|
| |
Wheel speed and radar calibration information incorrectly
entered in SprayStar display.
|
Enter correct calibration
information in SprayStar display. (See Setting Flowmeter Calibration
Number in SprayStar System section.)
|
| |
Improper data entered in SprayStar boom setup.
|
Enter proper data for
boom setup. (See Setup SprayStar System section.)
|
| |
Minimum pressure too high causing over application.
|
Decrease minimum pressure
setting in SprayStar display. (See Setting Minimum Pressure in SprayStar
System section). Choose different nozzles for higher pressure setting
at same speed.
|
| |
Radar picking up signal for tall crops.
|
Switch to wheel speed
sensor in tall crops.
|
| |
Rear wheels spinning causing wheel speed sensors to
give improper speed.
|
Recalibrate wheel speed
sensor or switch to radar in muddy or hilly conditions.
|
| |
Check if spray discharges from nozzles.
|
Refer to No Discharge
From Nozzles symptom in this group.
|
| |
Flowmeter calibration number is incorrect.
|
Enter correct flowmeter
calibration number.
|
| |
Exceeding system capacity.
|
Select slower target
speed.
|
| |
Display set to high flow but valve to second flowmeter
closed.
|
Open valve to second
flowmeter.
|
| |
Display set to low flow but valve to second flowmeter
open.
|
Close valve to second
flowmeter.
|
|
Solution contains heavy solids (inadequate mixing of
chemicals)
| Improper mixing method when solution tank is filled.
|
Mix chemicals properly.
(See chemical label.)
|
| |
Agitation switch at load station OFF.
|
Turn agitation switch
ON.
|
| |
Agitation valves closed or do not open adequately.
|
Open agitation valve
as necessary.
|
| |
Spray off pressure not set high enough for proper agitation.
|
Increase spray off pressure
setting.
|
| |
Incorrect engine rpm.
|
Run engine at maximum
rpm.
|
| |
Pump not running at specified rpm.
|
Check hydraulic flow
to hydraulic motor on pump.
|
| |
Agitation nozzles plugged.
|
Unplug agitation nozzles.
|
| |
Agitation nozzles angle of orientation incorrect.
|
Adjust agitation nozzles
correctly.
|
| |
Faulty agitation nozzles.
|
Replace agitation nozzles.
|
|
Pump not primed.
| Air in pump. |
Allow solution to fill
pump and push air out before running pump.
|
| |
Fill strainer plugged.
|
Clean fill strainer.
|
| |
Pump priming procedure incorrect.
|
Prime solution pump
correctly. (See Priming Solution Pump with Rinse System (Nurse Tank
Fluid Level Even or Below Sprayer Pump) in the Wet System section.)
|
| |
Pump bleed line kinked or forms a trap.
|
Route bleed line so
it goes directly upward from pump to solution tank.
|
| |
Pump bleed line partially or entirely plugged.
|
Clean or blow out pump
bleed line.
|
| |
Nurse tank hose does not have shut-off valve or has
valve on nurse tank end of hose.
|
Install shut-off valve
on end of nurse tank hose.
|