This is the factory service manual for the Flexi-Coil 1740, 2340, 2850, 3350, 3850 and 4350 air carts, and it covers the whole machine, not just the iron. You get the seeding and fan hydraulic circuits with real test values (the fan runs a 19cc orbital motor with an internal check valve, and the PCFC feeds the torque generators at 4.7 l/min between 3100 and 5170 kPa), full wire harness schematics by circuit, ECU and rate controller diagnostics, a fault code listing with causes and troubleshooting steps, plus the metering drive, air distribution, rear axle, wheels, lighting and auger wiring. If your cart throws a code or stops metering, the answer is in here.
Other edition of this manual
What's Inside This Flexi-Coil 1740–4350 Manual
| System | Pages | Key Topics |
|---|
| Introduction | 1-87 | Contents, Safety Rules, Safety Signs, Hand Signals, Torque Reference, Electrical Testing Basic Instructions, Product Identification |
| Rear Axle System | 88-105 | Non-Powered Rear Axle |
| Hydraulic Systems | 106-203 | Reservoir Cooler and Filters, Seeding Hydraulic Circuit, Metering System Hydraulic Circuit, Hydraulic Seeding Fan System, Main Frame Hydraulics |
| Wheels | 204-225 | Rear Wheels, Caster Wheels |
| Electrical System (General) | 226-238 | Electrical Schematic Frames, Tractor Harness Power Extension and CAN Bus |
| Harnesses and Connectors | 239-432 | Wire Harness Schematics by Circuit (Lighting, Tank Level and Low Sensors, Meter RPM, Meter Air Speed, ECU Connections) |
| Alternator | 433-446 | Alternator Testing and Wiring |
| External Lighting | 447-468 | Warning Lights, Tail Lights, Transport Lighting |
| Seeding Control System | 469-576 | Rate Controller, ECU, Optical and Ultrasonic Tank Sensors, Flow Monitoring |
| Cab Seeding Controls | 577-624 | In-Cab Display and Control Wiring |
| Auger | 625-638 | Auger Control Wiring |
| Electronic Modules | 639-644 | ECU and Module Identification |
| Split Meter Control System | 645-658 | Split Meter Drive Control Wiring |
| Fault Codes | 659-1097 | Diagnostic Trouble Code Listing by SPN-style Code (Example 520203-03 and 520199-04), Cause and Troubleshooting Steps for Rate-Control ECUs |
| Metering System | 1098-1183 | Split Meter Control System, Metering Mechanical Drive, Product Metering |
| Seeding | 1184-1288 | Product Handling and Delivery Drive System, Seeding Fan System, Air Distribution System |
| Special Tool Index | 1289-1290 | |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Fan circuit flow to torque generators (pressure compensated flow control) | 4.7 l/min (1.25 US gpm) at 3100-5170 kPa (450-750 psi) | p. 112 |
| Auger circuit minimum pressure to run VR meter drive | 3100 kPa (450 psi) | p. 112 |
| In-line fuse between tank switch and ECU | 15 A | p. 112 |
| Fan motor | 19cc orbital motor with internal check valve | p. 112 |
