Summers ULTIMATE NT - Section 4 - TROUBLESHOOTING; SECTION 4 - TROUBLESHOOTING; 4.1. SPRAYER SYSTEM TROUBLESHOOTING

SECTION 4 - TROUBLESHOOTING
4.1
4.1. SPRAYER SYSTEM TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
1. Pump does not develop pressure
(Hydraulic motor should “hum” if
pump is operating normally).
*If hydraulic system overheats:
a. Check tractor hydraulic system oil
level.
b. Check for hydraulic system leaks.
c. Check for dented or restricted oil
lines.
d. Change oil and lters if dirty per
tractor manufacturer recommenda-
tions.
e. Check that hydraulic system reser-
voir, lines and cooler are clean and
functioning.
f. Check condition of tractor hydraulic
pump.
g. See Hydraulic Pump manual for
more information.
A. Incorrect direction of oil ow.
Reverse hydraulic hoses or move Hy-
draulic lever in opposite direction.
B. Insufcient water to prime pump. Fill tank to a point above pump level.
C. Insufcient tractor RPM.
Tractor engine must be running at nor-
mal Field RPM speed.
D. Bypass screw (located on side of hy-
draulic motor) improperly adjusted.
See Hypro Pump Selection guide for
more information. Refer to section 2.4-3.
E. Frozen impeller. Split water pump and free impeller.
F. Incorrect pump.
See Hypro Pump Selection guide for
more information.
G. Unknown.
See Hydraulic or PTO Pump manual for
more information.
2. Raven SCS-205 Control does not
work properly.
Improper connections or defective compo-
nents.
See Raven Sprayer Control Systems
manual for more information.
3. Raven SCS-450 Control does not
work properly.
Improper connections or defective compo-
nents.
See Raven SCS-450 manual for more
information.
4. Regulator valve does not regulate
pressure.
A. Master switch must be ON and one or
more Boom switches must be ON.
Turn master switch ON and turn one or
more boom switches ON.
B. Regulator valve is in a neutral position
(205 only)
Hold pressure adjust switch until valve
moves into adjusting range.
C. Improper voltage or poor electrical con-
nection.
Listen to motor while switch is activated.
If nothing is heard, check voltage and
connections. If motor runs but pressure
does not change, replace regulator valve.
D. Rate 1 or Rate 2 is selected on 450. Turn Rate Switch to manual.
5. Electric ball valves do not work
properly.
A. Improper voltage or poor electrical con-
nection.
Check voltage and connections. Refer to
section 5 Electrical diagrams.
B. Internal breaker tripped.
Disconnect power for 20 seconds to
reset.
C. Power and ground wires on console are
reversed.
Disconnect console feed wires and attach
red to positive and white to ground.