Working on a Flexi-Coil air cart? This 758-page service manual (OEM #GI-043V2) walks you through the 1330 Plus, 2640, 40 Series, 50 Series, and Seed Treatment Unit carts in a single PDF. You get wiring diagrams for every console, remote, blockage monitor, and NH3 controller, along with hydraulic schematics tracing fan motors, auger motors, and variable rate drives. Troubleshooting tables cover metering, air system, and seed treatment faults, and a full mechanical section handles tanks, hubs, spindles, and wheel bearings. Run normal hydraulic pressure between 10340 and 13790 kPa (1500-2000 psi), and torque the 8-bolt wheel hardware to 160 N-m (120 lbf-ft). A plugged run at seeding time costs you acres. Bookmarked and keyword-searchable; pull it up on your tablet next to the cart and get moving.
What's Inside This Flexi-Coil 1330 Plus / 40 & 50 Series Manual
| System | Pages | Key Topics |
|---|---|---|
| Repair Parts Identification | 3-12 | 1330 Plus, Tow Behind, Tow Between, 40 Series, Tow Behind Air Carts, Tow Between Air Carts, 3rd Tank, 2640 |
| Service Bulletins | 13-16 | 1330 Plus, 40 Series, 50 Series, Seed Treatment Unit |
| General Information | 19-62 | Contents of This Section, Important Information, Service Tools, Safety-Alert Symbol, General Safety Practices, Units of Measure, Abbreviations, Conversion Chart |
| Metering System | 63-148 | Contents of This Section, Troubleshooting, Meter Box, Nurse Option, Meter Rollers, 40 and 50 Series Variable Drive, Mechanical Drive, Manifold |
| Air System | 149-224 | Troubleshooting Table, Plus Air Dampers, Series and 50 Series Air Dampers, Outlet Valves, Plus Fan and Air Damper Setting, Series a Fan and Air Damper Setting |
| Electronic Control System | 225-518 | Contents of This Section, General Information, Indentifying Remotes, Definitions, Replacing Electrical Connectors, Temporary Harness Wiring Repair, Version Upates |
| Hydraulic System | 519-616 | Contents of This Section, Troubleshooting, General Information, 1330 Plus Hydraulics, 40 Series Air Cart Hydraulics, 50 Series Air Cart Hydrualics, Fan Motors |
| Mechanical Systems | 617-654 | Contents of This Section, Tank Service, Tires, Rims, Hubs, Re-Packing Wheel Bearings, Spindles, Front Caster Pivot Housing Assembly |
| Fan Service | 655-680 | Contents of This Section, Single / Dual Fan Selection Guide, The SIngle Fan Assembly, The Dual Fan Assembly |
| Seed Treatment Unit | 681-718 | Contents of This Section, Troubleshooting, Theory of Operation, General Operation Notices, Seed Treatment Unit Components, How the Seed Treatment Unit Works |
| Fan Drive Options | 719-752 | Contents of This Seciton, 50 Series Engine Drive Option, 1330 Plus PTO Option, 40 Series PTO Option |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Hydraulic oil pressure range (normal applications) | 10340-13790 kPa (1500-2000 psi) | p. 525 |
| Hydraulic oil pressure (heavy product flow rates) | 15510 kPa (2500 psi) | p. 525 |
| Rear Tire Pressure (14.9 x 46 R1) | 210 kPa | p. 633 |
| 16.5L x 16.1 ANS, SGTR II,ST II | ||
| Wheel Bolt Torque | 160 N-m (120 lbf-ft) | p. 633 |
| 1330 Plus Tow Behind | ||
| Length (With Auger) | 5.66 m | p. 60 |
| 1330 Plus | ||
| Height | 2.87 m | p. 60 |
| Front Volume (95% Full) | 1,832 L | p. 60 |
| 40 Series 2640 Tow Behind | ||
| Length (with auger) | 7.84 m | p. 61 |
| 50 Series Tow Behind | ||
| Length (With Auger) | 8.59 m | p. 62 |
| Front Volume (95% Full) | 3418 L | p. 62 |
| 50 Series | ||
| Height | 4.32 m | p. 62 |
| 40 Series 2640 | ||
| Front Volume (95% Full) | 2830 L | p. 61 |
Flexi-Coil 1330 Plus / 40 & 50 Series Common Problems This Manual Covers
Flexi-Coil air cart fan won't hold speed, hydraulic oil running hot, fan vibrating at high RPM
Check hydraulic oil pressure at the fan circuit. Normal applications need 10340-13790 kPa (1500-2000 psi); heavy product rates need 15510 kPa (2500 psi), both listed on page 525. If pressure checks out, inspect the fan motor shaft seal for oil leakage and follow the hydraulic troubleshooting steps starting on page 519 before the motor seizes.
Manual Section: Hydraulic System Troubleshooting p. 519Uneven product distribution across seed runs, primary lines plugging repeatedly, weak airflow at the openers
Work through the air system troubleshooting table starting on page 149. Disconnect plugged primary lines at the outlet end and blow them clear, then reset the air dampers to the chart settings for your tank and product. Running heavy product rates, verify the fan hydraulic circuit holds 15510 kPa (2500 psi), the spec on page 525.
Manual Section: Air System Troubleshooting p. 149Meter roller not turning in the field, displayed rate fluctuating or dropping to zero
Check the metering troubleshooting procedures: confirm the meter roller is not bridged with product and the drive is engaged. On 40 and 50 Series variable rate drives, measure hydraulic flow to each drive; each needs 5.68 l/min (1.25 gpm) per page 525. Test the speed sensor wiring against the error code reference.
Manual Section: Metering SystemWheel hub running hot after transport, bearing growl at road speed, uneven tire wear
Re-pack the wheel bearings every 100 hours, the interval on page 635; a dry bearing runs hot long before it fails. While the wheel is off, inspect the spindle and seal for scoring. Set rear 14.9 x 46 R1 tires to 210 kPa per page 633, and on 16.5L x 16.1 tires torque wheel bolts to 160 N-m (120 lbf-ft).
Manual Section: Mechanical Systems p. 635Frequently Asked Questions
What are the recommended service intervals?
Service intervals vary by component. The hydraulic oil filter should be cleaned every 100 hours and replaced every 300 hours, with the first change after 10 hours of use. Wheel bearings should be re-packed every 100 hours, and pivot housing bearings annually. For the Seed Treatment Unit, daily maintenance includes metering seed for 1-2 minutes and flushing tanks/lines, while pump hoses should be replaced annually and NH3 strainer magnets cleaned at least once for every 4 tanks of NH3 applied. p. 105
What fluids and capacities does this machine require?
The machine requires transmission differential hydraulic fluid for the PTO pump. Tank capacities vary by model: 1330 Plus Front tanks hold 1,832 L (52 bu) and Rear tanks hold 2,749 L (78 bu). For 40 Series, a 2640 Tow Behind model has Front 2830 L (80 bu), Center 2320 L (66 bu), and Rear 4020 L (114 bushel). 50 Series Front tanks hold 3418 L (97 bu), Center 3136 L (89 bu), and Rear 5427 L (154 bu). The Seed Treatment Unit mixing tank has a capacity of 40 litres (10.5 US gal, 8.8 Imp gal). p. 60
What torque specifications are listed?
Various torque specifications are provided for different components. General bolt torque information is available in a table, with values like 1/4 UNF Grade 5 bolts requiring 10.8 N-m (8 lbf-ft) dry. Auger motor screws should be torqued to 30 to 35 N-m (265 - 310 lbf-in). Hydraulic cylinder tie rod nuts have specific torque values, for example, a 3/8" Nut requires 31 N-m (23 lbf-ft) dry minimum. Wheel bolt torque for a 14.9 x 46 R1 tire is 440 N-m (160 lbf-ft), and the front caster brake operating torque is 203 to 216 N-m (150 to 160 lbf-ft). p. 58
How can error codes or warning lights be reset?
To acknowledge an active alarm and clear its display, press the ALARM key on the console. This key also allows you to review all uncorrected alarms. While pressing the ALARM key will acknowledge the alarm, the underlying problem must be resolved for the alarm to cease repeating or flashing. p. 273
What are the common electrical problems?
Common electrical problems include various sensor issues such as the Air Cart CAL Switch, Fan Speed Sensor, Work Switch, and other sensors being shorted to ground. Communication errors can occur with remotes or the CAN Bus, and excessive current draw can be detected at the console or remote units. Low battery voltage at the console or air cart remotes is also a frequent issue, along with meter motors not turning or having incorrect rates. p. 310
What format is this Flexi-Coil 1330 Plus & variants manual in?
A 758-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Are there any print restrictions on this Flexi-Coil 1330 Plus & variants manual?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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