GREAT PLAINS HT1100-40, Operator'S Manual, Page: 33 / 38

Page
33
OPERATION MANUAL
Maintenance
TROUBLESHOOTING
Application Rates
Condition Solution
Individual shutoff slides in incorrect position Position properly (open, closed, and two
intermediate positions
Mathematical error made during field
calibration
Recheck calculations
Catch sample not weighed accurately Weigh sample again
Actual acreage less or more than calculated Check area covered
Incorrect setting Check control setting or meter calibration
Sprockets or chains slipping Check tightness
Sprockets are incorrect size or ratio Check sprocket assembly
Density of material differs from rate chart Field calibrate
Binding of metering shaft Check and clean bearings
Zero-Max turning in non-preferred direction Since Zero-Max turns faster in non-pre-
ferred direction (marked by an arrow), com-
pensate and lower the setting by checking
application rate through calibration
Stripping of Sprocket Teeth
Condition Solution
Binding of metering shaft Check and clean bearings
Do Not
oil or grease the black bearing
Product not Metering
Condition Solution
Individual shutoff slides closed Open to correct position
Tube is kinked Check tube routing
Blockage at metering wheel Check and clean
Material has bridged in hopper or mixing
chamber
Loosen and agitate
Tube end is blocked and material is blowing
back out of mixing chamber
Clear blockage. Check for tube kinking
Manifold opening is blocked Check and clean manifold by removing
expansion plugs
Air pressure too low Check blower,
increase rpm if gauge indicates