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396
-
5477Y1 Sentinel Row Control Manual
©2022 SurePoint Ag Systems 51
4/29/2022
Hydraulics Problem
1.
Leave the manual override open on the SurePoint
valve.
2.
Check the hose routings. The
“
P
”
port on the
SurePoint valve should hook to pressure. The
“
T
”
port is the return that should flow back to the
tractor.
3.
Try hoses in a different hydraulic remote. Inspect
hydraulic connectors for damage or restrictions.
Electric / Electronic Problem
1.
Close manual override (lock down)
2.
Run the system in
Manual Operation mode
to investi-
gate this issue.
3.
Verify hydraulics are on.
4.
In Manual mode, increase the PWM Duty Cycle (to 40
-
45%).
5.
Take a metal object and hold it next to the coil. If the coil
is working, you will feel the magnetic pull.
6.
If no magnetic force is felt, disconnect the PWM valve
connector and check voltage. You will need 8
-
12 volts to
get hydraulic valve to open.
7.
If 8
-
12 volts is not present, check harnesses and review
control valve type setup.
8.
Go back to the 12
-
pin connector that plugs into the Pump
harness. Check voltage between pins 5 & 6 and pins 5 &
2.
9.
You can remove the electromagnetic solenoid with pro-
portional valve to see if the valve moves when a PWM
signal is sent to it. Look closely, it
’
s a small movement.
Hydraulic Pump Will Not Turn
Turn hydraulics off, go to the
SurePoint Hydraulic PWM valve
and use the manual override (red knob) on top of the
electric coil to
manually open the valve
(Manual Override UP = valve fully open). There may be dirt in here that needs
to be cleaned out before you can turn and raise the override. Start the
Manual Operation mode
to open the section
valves. Turn hydraulics on
at a low flow only
as the valve is 100% open. Gradually increase the hydraulic flow from the
cab. If pump does not turn, try hydraulic lever in opposite direction. Try switching to a different remote. Does the pump
turn? If it turns, your problem is electric / electronic. If the pump still does not turn, you have a hydraulic problem.
Hydraulic Manual Override
Down
-
Normal Operation
2. Twist button CW 180º
(May need to clean out
dirt)
Hydraulic Fluid and Equipment Safety
This system uses hydraulic equipment with hydraulic fluid
under extremely high pressure. Hydraulic fluid escaping un-
der pressure can have sufficient force to penetrate the skin
causing serious injury. Use a piece of paper or cardboard,
NOT BODY PARTS, to check for suspected leaks. Wear pro-
tective gloves and safety glasses or goggles.
Coil Check:
Should be 7
-
9
ohms be-
tween the two
pins on the
PWM con-
nector on the
coil.
Manual Operation Mode:
1.
Enter Speed
2.
Select Rate
3.
Duty Cycle
-
MAN
-
enter 30+%
4.
Turn Section Control
-
MAN
5.
Master ON
-
Height switch down
SurePoint
Ag
Systems