Part of the Case IH Repair Manuals.
Hydrostatic drive work on an Axial-Flow 7120, 8120 or 9120 runs through a Bosch - Rexroth closed circuit pump with Electric Displacement Control. Page 546 gives main reliefs at 419 bar (6076 psi) and charge relief at 30 bar (435 psi). Case IH manual 84526978, dated March 2013 and replacing 84163559, prints those figures beside the pump and motor components and the powered rear axle problem solving.
Chasing a hydro or wiring fault with the crop standing and rain on the way is bad enough without guessing at pressures. The book also covers the main gearbox, the 4 speed transmission and differential, both axles and the load sensing hydraulics. It goes on to the header, rotor, cleaning shoe, grain tank unload, wiring schematics and the fault code sections.
Keep it on a tablet in the cab or on the shop bench, wherever the combine is parked, and get back in the field.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction, Torque Charts and General Specifications | 1-53 | Safety Rules, Minimum Tightening Torques, Standard Torque Data for Hydraulics, General Specification per Model, Overall Dimensions, Capacity Chart, Biodiesel Fuels, Product Identification |
| Engine | 54-205 | Engine and Crankcase with FPT Cursor Fault Code Cross Reference, Engine Troubleshooting and Engine Remove and Install, Air Cleaners, Lift Pump, Aftercooler, Engine Cooling System, Fan and Drive, Rotary Screen, Engine Air Compressor |
| Main Gearbox and Drive | 206-279 | Main Gearbox and Drive Removal, Disassembly and Assembly |
| Transmission | 280-383 | Mechanical Transmission Lubrication System, Mechanical Transmission Torques and Special Tools, External Controls, Gearbox Internal Components, Differential |
| Front and Rear Axles | 384-495 | Powered Front Axle, Final Drive Hub, Steering Knuckles and Shafts, Planetary and Bull Gear Final Drives, Powered Rear Axle, Non-Powered Rear Axle |
| Hydrostatic Drive | 496-651 | Transmission and Steering Hydrostatic Control, Hydrostatic Transmission Specification and Capacity, Pump and Motor Components, Rear Hydrostatic Transmission (Powered Rear Axle) Problem Solving |
| Front PTO and Brakes | 652-717 | Front Power Take-Off, Parking Brake, Hydraulic Service Brakes |
| Hydraulic Systems | 718-935 | Hydraulic Schematics, General Specification, Control Pressure Flow Test, Pump Control Valves, Variable Displacement Pump, Auxiliary Pump, Reservoir, Cooler and Filters, Safety and Main Relief Valves, Main Control Valve, Header Height and Tilt, Grain Tank Unload, Reel and Crop Processor Hydraulics |
| Steering, Wheels and Tracks | 936-1163 | Steering Control and Hydraulic Components, Front Wheels, Tracks, Track Frame and Driving Wheels, Track Tension Units, Track Rollers |
| Cab Climate Control | 1164-1285 | Heating, Ventilation, Air Conditioning Troubleshooting, Fault Codes and Pressure Test Chart |
| Electrical System and Electronic Controls | 1286-1474 | Electrical System, Fuel Injection, Engine Cooling, Oil and Intake Electrical, Engine Control, Hydrostatic Drive and Transmission Control, Hydraulic System Control, HVAC Control |
| Wire Harnesses, Connectors and Schematic Frames | 1475-2106 | Harness and Connector Views, Connector Pin Tables, Electrical Schematic Frames |
| Starting, Charging, Lighting, Instruments and Modules | 2107-2572 | Engine Starting System Problem Solving, Cold Start Aid, Alternator, External Lighting, Warning Indicators, Alarms and Instruments, Harvest and Cab Controls, Wipers, Electronic Modules, Cab Header Controls, Precision Farming, Sieve Control, Gps |
| Fault Codes: Module Communication and Machine Controllers | 2573-3225 | Fault Code Index, Module Not Detected or Communication Lost (D0100-2011), Machine Controller Codes From E0001-03 Onward |
| Fault Codes: Engine Controller | 3226-3462 | Engine ECU Fault Codes From E1541-02 to E1745-03 with Context, Cause, Failure Modes and Test Steps |
| Fault Codes: Residue Handling Module and Header | 3463-3617 | Residue Handling Module and Header Control Fault Codes, Fault Code Section Index |
| Headers and Product Feeding | 3618-3809 | Attachment and Header Frame, Floating Roll and Feed Chain, Feeder Housing, Stone Trapping System, Feeder Drive System with CVT Torques, Header Drive System |
| Threshing and Separation | 3810-3985 | Concave Control, Threshing Mechanism Drive, Rotor, Rotor Housing, Discharge Beater, Rotary Separator |
| Residue Handling and Cleaning | 3986-4189 | Straw Chopper and Drive, Chaff Spreader, Self-Leveling Frame, Cleaning Drives, Grain Pan, Upper and Lower Shaker Shoe, Fan Housing, Tailings Return System |
| Crop Storage and Unloading | 4190-4413 | Clean Grain Elevator, Grain Tank, Grain Tank Unload Drive System, Grain Tank Unload |
| Platform, Cab and Bodywork | 4414-4574 | Machine Shields and Guards, Protections and Footboards, Pneumatically Adjusted Operator Seat, Cab, Cab Interior |
| Fold-Out Schematics | 4575-4590 | Electrical Schematic Sheets and Hydraulic / Hydrostatic Schematic Sheets |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Engine gross power (ISO TR14396) | 260 kW (353.5 Hp) Cursor 9 l (Axial-Flow 7120) / 298 kW (405.2 Hp) Cursor 10.3 l (Axial-Flow 8120) / 343 kW (466.4 Hp) Cursor 13 l (Axial-Flow 9120) | p. 38 |
| Engine rated speed | 2100 RPM | p. 38 |
| Main hydraulic system | 57 l (15.1 US gal), CASE IH AKCELA HY-TRAN ULTRA HYDRAULIC TRANSMISSION OIL | p. 48 |
| Traction gearbox | 19 l (5.0 US gal), CASE IH AKCELA GEAR 135 H EP 80W-90 | p. 48 |
| Fuel tank | 1000 l (264.2 US gal) | p. 39 |
| Grain tank capacity | 10570 l (300.0 Bu) (Axial-Flow 7120) / 11630 l (330.0 Bu) (Axial-Flow 8120, Axial-Flow 9120) | p. 38 |
| Rotor speed range | 220 - 1180 RPM | p. 36 |
| Cleaning fan speed range | 300 - 1150 RPM | p. 38 |
| PFC pump flow | 152 l/min (40.2 US gpm) | p. 723 |
| PFC pump high pressure standby | 207 - 214 bar (3001.5 - 3103.0 psi) | p. 723 |
| PFC pump low-pressure standby | 26 - 28 bar (377.0 - 406.0 psi) | p. 723 |
| Hydrostatic pump | Bosch - Rexroth, 125 cm³/rev (7.6 in³/rev) | p. 546 |
| Hydrostatic main reliefs | 419 bar (6076 psi) | p. 546 |
| Hydrostatic charge relief | 30 bar (435 psi) | p. 546 |
| Hydraulic and hydrostatic total system capacity (approximate) | 136.5 l (144.2 US qt) without Powered Rear Axle / 147 l (155.3 US qt) with Powered Rear Axle | p. 521 |
| Feeder gearbox mounting bolts M16 x 60 | 174 - 220 Nm (129 - 162 lb ft) | p. 3688 |
| Axial-Flow 7120 | ||
| Engine oil (Cursor 9L) | 25 l (6.6 US gal), CASE IH AKCELA NO. 1 ENGINE OIL SAE 15W-40 | p. 48 |
| Axial-Flow 8120 | ||
| Engine oil (Cursor 10.3L) | 32 l (8.5 US gal), CASE IH AKCELA NO. 1 ENGINE OIL SAE 15W-40 | p. 48 |
| Axial-Flow 9120 | ||
| Engine oil (Cursor 13L) | 35 l (9.25 US gal), CASE IH AKCELA NO. 1 ENGINE OIL SAE 15W-40 | p. 48 |
