GREAT PLAINS YP2425, Руководство оператора

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2016-11-16 Table of Contents Index 401-406M
YP2425 and YP2425F Table of Contents Index Troubleshooting 88
Press wheels
not
compacting
the soil as
desired.
Incorrect spring handle setting See “ Press Wheel Adjustment ” on page 84.
Wheel stagger needs adjustment for
conditions
See “ Press Wheel Adjustment ” on page 84.
Insufficient row unit down force See “ Row Unit Down Pressure ” on page 67.
Too wet or cloddy. Wait until drier weather or rework ground.
Use of incorrectly shaped tire for your
conditions.
Wedge shaped wheels work best on narrow spacings and in wet
conditions. Round edge wheels work best in wider row spacings
and drier conditions.
Incorrect press wheel depth. Reset press wheel depth, page 84.
Press wheel
or row-units
plugging
Planting conditions too wet. Wait until drier weather.
Too much pressure on row-units. Reduce down pressure on row-units.
Coulters set too deep, bring up excess dirt
and moisture.
Check coulter adjustment.
Backed up with planter in the ground. Clean out and check for damage.
Failed disk bearings. Replace disk bearings.
Disk blades worn. Replace disk blades.
Scraper worn or damaged. Replace scraper.
Air lines
plugging
between air
box and Y
splitters
Improper air hose routing.
With planter unfolded, hoses should form a gentle horizontal “S”
shape through the holders with no big sags.
Air leaks between manifold and splitters Check for leaks and correct as needed.
Fan air flow too low.
Speed up fan. If already at 3800 rpm, increase airflow by
reducing butterfly valve angle, before increasing rpm.
Seed blowing
out of
Pro-Box door
area
Fan air flow too high.
Slow down fan. If already at or below 3000 rpm, set fan at
3800 rpm and use fan butterfly valve to reduce airflow.
Seal on top of airbox damaged or out of
adjustment.
Seal should be compressed approximately
1
/
2
inch when
hopper or box is installed.
Hydraulic
marker
functioning
improperly
Marker circuit set to Aux Set Marker/Aux valve on wing to Marker. See page 48.
Air in lines or valves
Rephase Marker cylinders, then see “ Marker Cylinder
Bleeding ” on page 92.
Leaks in hose fittings or connections. Check all hose fittings and connections for air or oil leaks.
Low tractor hydraulic oil level. Check tractor hydraulic oil level.
Loose or missing bolts or fasteners. Check all bolts and fasteners.
Needle valve plugged.
Open needle valve, cycle markers slowly and reset needle
valve. See page 56.
Needle valve(s) in sequence valve plugged.
Open needle valves, cycle markers slowly and reset needle
valves. See page 56.
Wing Fold Switch ON Turn Wing Fold switch OFF
Marker disk
does not
mark
Marker folding linkage does not have enough
slack to allow marker disk to drop into field
depressions.
See “ Marker Chain Length Adjustment ” on page 55.
Marker disc needs adjustment
Increase disc angle. If still no mark, reverse marker disk to pull
or throw dirt.
Hydraulic
Hitch Won’t
Stay Raised
Bypass valve is open at hitch Close valve.
Problem Cause Solution