All 737 pages of this Case Corporation AFS Planting and Seeding Service Manual (OEM #7-91181) zero in on the electronics, hydraulics, and controller systems behind the 955 AFS Series Planter, Concord AFS Air Seeder, and AFS Universal Display. Inside: complete wiring schematics for both the 955 and Concord electrical systems, tractor harness diagrams, dedicated hydraulic schematics for each platform, and a full section of connector pinouts covering the Case Data Bus, Monitor Interface Unit, Bin Level Gateway, and Multiple Channel Controller. You also get an exhaustive fault code library spanning MIU, MCC, and Universal Display controllers, plus symptom-based troubleshooting procedures that walk you through every AFS failure mode. Set the Concord fan to 15.0 GPM at 5000 RPM and verify your ACCU-FLOW pressure holds above 10 PSI at rest before the tractor moves. Season's burning. Jump to any section by bookmark and get back to planting.
What's Inside This Case Corporation AFS Planting and Seeding Manual
| System | Pages | Key Topics |
|---|---|---|
| Electrical | 4-101 | Afs Planter Electrical System (General, Cab Display Unit, System Layout, Case Data Bus, Monitor Interface Unit, Bin Level Gateway, Meter Sensor, Bin Level Sensor, Bin Gateway Power, Multiple Channel Controller, Active Terminator) |
| Hydraulics | 102-123 | Multi Channel Variable Rate Control Valve, Relief Flow Bypass Valve, Auger Shut Off Valve, Auger Control Valve, Variable Rate Valve, Filtration |
| Controller Systems | 124-737 | Controller Connectors, Miu Controller Fault Codes, Mcc Controller Fault Codes, Universal Display Fault Codes, Active Terminator, Symptom Based Faults |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Concord AFS Air Seeder | ||
| Minimum ACCU-FLOW system pressure when not moving for operation | greater than 10 PSI | p. 436 |
| Concord fan normal range pressure | 1800 PSI to maximum tractor pressure minus 250 PSI | p. 115 |
| Concord fan normal range flow | 15.0 GPM | p. 115 |
| Concord fan normal range RPM | 5000 RPM | p. 115 |
| Concord meter normal range pressure | 500 to 1000 PSI | p. 115 |
| Concord meter normal range flow | 0.70 GPM | p. 115 |
| Concord meter normal range RPM | 30 RPM | p. 115 |
| Load sensing valve pressure differential | 250 PSI | p. 115 |
| Wheel Speed Calibration Value (Concord 23.1 x 26 (R2) Rice lug) | 70.03 | p. 490 |
| 955 AFS Planter | ||
| Fuse 1 (Wing Fold Solenoid) | 15 AMPS | p. 17 |
| 955 AFS Series Planter | ||
| Wheel Speed Calibration Value (11L x 15 Implement Tread) | 48.26 | p. 162 |
Case Corporation AFS Planting and Seeding Common Problems This Manual Covers
Concord AFS Air Seeder slow loss of air pressure at the seed drum and ACCU-FLOW system. p. 436
Inspect the seed drum seal for damage or flat spots. Check the ACCU-FLOW system pressure on page 436 to verify it is greater than 10 PSI when not moving. Replace the donut seal if pressure drops below this threshold.
Manual Section: Concord AFS Air Seeder Electronics - Symptom Based FaultsBlower fan motor fails to run efficiently or stalls out completely during heavy seeding operations. p. 115
Measure the fan circuit pressure at the remote valve. Adjust the flow to maintain 15.0 GPM as outlined on page 115. Verify the fan normal range pressure stays between 1800 PSI and maximum tractor pressure minus 250 PSI to ensure 5000 RPM operation.
Manual Section: HydraulicsSeed skipping or uneven spacing on corn rows with erratic ground speed feedback on the display. p. 162
Verify the wheel speed calibration value matches your tire size. Go to the controller settings and enter 48.26 for an 11L x 15 implement tread, as shown on page 162. Inspect row clutches for wear if the calibration value is correct but skipping continues.
Manual Section: 955 AFS Series Planter Electronics - MIU Controller Fault CodesWing fold solenoid clicks but implement frame fails to raise or lower into transport position. p. 17
Inspect Fuse 1 in the main electrical panel. Verify the circuit handles 15 AMPS as specified on page 17. Replace the fuse if blown and check the wing fold solenoid wiring harness for shorts to ground before restoring tractor power.
Manual Section: ElectricalFrequently Asked Questions
How to reset seed sensor error on Case IH 955 AFS planter?
To address a seed sensor error (e.g., Fault Code MIU 49bb1), first clean the seed sensor lenses and check for broken tie straps or misaligned optics. If the condition reoccurs, clear all fault codes from the MIU and cycle system power. If the fault persists, replace the seed sensor at the affected row.
How to clear error code Row 18 seed sensor not found on Case IH 955 AFS?
To clear a 'seed sensor not found' error, which is indicated by Fault Code MIU 15bb1 (Sensor communication error address bb isolation declared during address assign), first clear all fault codes from the MIU and cycle system power. Then, check for isolation fault codes (15XXX) and other active sensor fault codes, addressing them as necessary. If the problem persists, verify if the issue is internal to the MIU and replace the MIU controller if needed.
Why is the 955 cyclo planter losing air pressure and how to reset it?
A constant leak or hiss from the vapor tubes when the system is off may indicate an o-ring leak in the ACCU-FLOW heat exchanger. To address this, replace the o-ring in the heat exchanger by bleeding the system, removing external plumbing, and disassembling the super cooler. There is no explicit 'reset' procedure for air pressure loss, as resolution involves fixing the underlying leak.
How to reset air pressure alarm on Case IH 955 Cyclo
To address an air pressure alarm related to a meter blockage sensor (e.g., Fault Code MIU 44bb1), first clear all fault codes from the MIU and cycle system power. Then, check the bin level gateway connections, inspecting pins 10, 12, and 15. If the fault persists, check the meter blockage sensor signal wire and power wire for open circuits, and replace the air pressure sensor or bin level gateway as needed.
What do I get after purchasing this Case Corporation 955 AFS Planter?
You get a 737-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Is this Case Corporation 955 AFS Planter & variants Service Manual printable?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Can I find wiring schematics in this Case Corporation 955 AFS Planter?
Included. The Case Corporation 955 AFS Planter & variants Service Manual covers complete wiring harness diagrams, electrical circuits, and connector pinouts.
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