Great Plains ADC1150 Operator Manual - Manual (Page 68)

66
Section 5 Troubleshooting
Model 1150 1995 - 1997 167-058M 7/28/10
Great Plains Mfg., Inc.
Front and rear openers are not at the
same depth. Press wheels are out of adjustment, refer to Setting the Seeding Depth and Level-
ing Front-to-Rear in the “Adjustment” section, on page 60.
Gauge wheel tire pressure is not correct.
Sections are not operating at the same
depth. Gauge wheel cylinders are out of phase; lift the drill fully and hold the lever until all
the cylinders extend fully.
Lifting circuit has air in it, refer to Bleeding the Hydraulic Lifting System in the
“Implement Assembly and Setup” section on page 24.
Implement frame is not set level, refer to Side-to-Side Frame Leveling in the
“Implement Assembly and Setup” section on page 28.
Gauge wheel tire pressure is not correct.
Wing fold cylinders are not fully extended.
Sections are creeping up or down in the
field. Gauge wheel cylinders have air in them, refer to Bleeding the Hydraulic Lifting
System in the “Implement Assembly and Setup” section on page 24 for bleed-
ing procedure.
Leaky gauge wheel cylinder. If a cylinder leaks internally that cylinder will retract
and all cylinders outside of it will extend. Install a new seal kit.
Drill settles lower in the field - all sec-
tions. Depth stop valve plunger o-ring is leaking; replace o-ring.
Fan won’t run fast enough. Tractor hydraulics are not supplying enough oil. Must be able to supply 15gpm at
2000psi.
Tractor oil level is too low.
Trying to run the fan backwards; bottom of the blade should move towards the rear
of the drill.
Check valve installed backwards.
Excessive seed cracking Fan speed too high; lower speed.
Divider is missing from the tower assembly.
Acremeter is not accurate Check tire pressure.
Check for excessive overlap or skips in planting.
Loose soil conditions may cause a variation in acres registered.
Be sure the correct clutch sprocket is installed. 45’ uses 29t and the 34’ uses the
38t.
Seed emerging to the side of the press
wheel track. Press wheels and openers are not aligned. If whole gang is off move press
wheels.
Turning sharply with the openers in the ground may bend openers.
No seed being metered. Check power to the electric clutch circuit.
Check the clutch on/off switch adjustment.
Gearbox clutch handle is not engaged.
Sprocket is not secured to shaft.
Fan pressure switch not closing. Switch should be 800 psi normally open
Problem Solution