Great Plains 1625AHL Operator Manual - Manual (Page 100)

96 1625AH Table of Contents Index Great Plains Manufacturing, Inc.
411-020M Table of Contents Index 2014-04-21
Dry Fertilizer Delivery Troubleshooting
Problem Cause Solution
Planter-Wide
Blockage Material pooling in hose sags or flat runs. Increase manifold pressure (page 53).
Moisture in hopper has coagulated
material above meter. Clean-out hopper (page 106).
Out of fertilizer Add fertilizer.
Single or
multiple hoses
plugging just
ahead of
airbox. Fan speed too low Check/adjust fan speed.
Possible air leak Check for air leak downstream between box and top of
meter.
One or more applicator tines plugged Clean out tines
1, 2, 3, or more
outlets fail.
Outlets can be
side-by-side or
random.
Plugging may
also move
from one outlet
to another.
Foreign matter in chamber in bottom of
airbox. Clean out chamber.
Sag in lines Shorten hoses as necessary to eliminate sags.
Liquid Fertilizer Troubleshooting
Problem Cause Solution
No Fertilizer
Flow Various possible pump issues Refer to Trouble Chart in CDS-John Blue
®
LM-1250/LM-1255
Parts and Instruction manual, part number 12-M-43.
Discharge and/or main
selector valve closed Check that discharge valves are open to selector valve, and
selector valve is open to pump. See “Liquid Fertilizer System
(Option)” on page 56
Chain missing at one or more
drive stages Check all five chains from ground drive to pump. See “Chain
Routing” on page 146.
Tank plugged Dilute or clean out any material clogging discharge port. See
“Liquid Fertilizer Clean-Out” on page 110.
Strainer plugged Close all valves. Inspect strainer (See Seed Rate Manual
(411-020B)). Clean screen as needed. Switch to a larger screen
size if materials clog strainer rapidly (and large size orifices are in
use).
Pump setting at or near zero Recommended pump adjuster settings are in the range 2 to 10.
See Seed Rate Manual (411-020B).
Material run-out Check tank level.
Material merely low - loss of
prime Add material. When tank level is below pump inlet level, any air
allowed in the line can cause the pump to lose prime.
Low Rate Fertilizer transmission in Low
Range when High Range was
intended. Swap sprockets at transmission. See Seed Rate Manual
(411-020B).
Various possible pump issues Refer to Trouble Chart in CDS-John Blue
®
LM-1250/LM-1255
Parts and Instruction manual, part number 12-M-43.