HT1110-6.0M & 7.5M
Maintenance and Lubrication
Great Plains
| 588-206M | 3/21/22
31
Troubleshooting
Problem
Solutions
Machine will not unfold: (Green Hand-
grips)
Make sure hoses are connected properly to the tractor’s remote.
Make sure the wing lock levers are unlocked.
Make sure the hydraulic lock valve is open for field operation, close down pressure valve
completely for full pressure.
*If closing the down pressure valve allows to unfold be sure to open for field use.
Switch fold hoses to another remote on tractor.
Trace hydraulic plumbing to confirm proper routing
Replace hydraulic tips on fold hoses.
Machine will not fold
Make sure hoses are connected properly to the tractor’s remote.
Make sure the hydraulic lock valve is open for field operation.
Switch fold hoses to another remote on tractor.
Trace hydraulic plumbing to confirm proper routing.
Replace hydraulic tips on fold hoses.
Machine will not lower: (Black Hand-
grips)
Make sure both transport locks are removed.
Make sure hoses are connected properly to the tractor’s remote.
Make sure the hydraulic depth stop valve is in operating condition, and not damaged.
Switch lift hoses to another remote on tractor.
Trace hydraulic plumbing to confirm proper routing.
Replace hydraulic tips on lift hoses.
Machine will not lift
Make sure hoses are connected properly to the tractor’s remote.
Make sure the hydraulic depth stop valve is in operating condition, and not damaged.
Switch lift hoses to another remote on tractor.
Trace hydraulic plumbing to confirm proper routing.
Replace hydraulic tips on lift hoses.
Machine will not lift evenly: (Black
Hand grips)
Call your GP representative for cylinder diagnostics.
Call your GP representative.