Claas Axion 810-850 Tractor Technical Support & Diagnostic Manual – 2008 PDF

Description

File Details

• Manual type: Technical support and diagnostic manual
• Brand: Claas
• Models covered: Axion 810, 810 CMATIC, 820, 820 CMATIC, 830, 840, 840 CMATIC, 850
• Language: English
• Page count: 1184 pages
• File format: PDF
• Document numbers: 00 11 362 650, 00 11 370 290
• Editions: 02.2008, 03.2008, 01.2008, 11.2007, 10.2007
• Engine series: DPS Powertech Plus Tier III, 6068HRT81, 6068HRT82

Chapters Covered

• A — Engine: Description, identification, torque settings and sealants, injector instruction sheets, electronic injection circuit, injector command, high pressure pump piloting, injection system, fuel filter, injectors, high pressure pump, common rail, return connector, tank connections, fuel supply pressure checks, inlet and exhaust, EGR system, variable geometry turbocharger, start-up circuit, pre-postheating system, lubrication, cooling, thermostat units, engine speed management, protections and automation, additional power management
• B — Hexashift gearbox: Description, technical specifications, functional logic, piloting laws, adjustment, main shimming, specific torques and sealing compounds, Revershift, manual calibration, electronic components, hydraulic part of the lubrication, measurements and checks, mechanical part, hydraulic piloting part, robot-driven ranges, slow range, work/transport mode, Hexactiv, shift to neutral, manoeuvring gear, Speed Matching, Skip Shift, Start Ratio, front rear decoupling
• B — CMatic gearbox: Measurements and checks, supply pressure checks for sliding sleeve ranges K1–K4, forward KV, reverse KR, engine pressure before and after the pressure filter, cooler inlet and outlet pressure, pressure regulator of the variable displacement pump, accumulator rating pressure
• C — Rear axle: GPA 40, GPA 41, GPA 42, GPA 44, GPA 45, differential, axle tubes, handbrake, automatic parking brake, brakes, high pressure braking, trailer hydraulic braking, trailer pneumatic braking
• D — Suspended front axle: General description, front suspension check, movement transmission, Proactiv suspension, management of differentials, front differential lock, 4 wheel drive
• E — Common elements: Hydraulics 110 l/min and 150 l/min, hydraulic circuits and diagrams, spool valve unit, Claas component numbers, measurement and checking points, rear lift, linkage spool valve, auxiliary spool valves, electrohydraulic spool valves, steering
• F — Electrical system: General, function diagrams, connector diagrams, implantation diagrams, fuse plates and electronic plates, road signalling, ventilation and A/C, linkage, PTO, transmission, accessories, wiper/washer, defrosting, rear view mirrors, networks, supply
• G — Error codes and WLP: List of error codes for MFA, TR1, TR2, TR3, REH, SFA, BDG, ENG, HYD, MFT, EXT, VDC, TCU; control panel WLP
• J — Front linkage and front PTO: General description, characteristics, operating laws, mechanical part, hydraulic part, electronic components, front power take-off, hydraulic piloting part

This Claas Axion 810-850 technical support and diagnostic manual is a complete workshop-level reference covering the full machine from engine management down to the trailer braking system. The document is organised into chapters A through J, each dealing with a distinct machine area. It opens with the DPS Tier III engine and its common rail injection system, covering the fuel circuit from tank through the 30µ and 2µ filters to the high pressure pump, common rail, delivery valves and electronic injectors. The engine section includes injector command waveforms, high pressure pump piloting characteristics, turbocharger with variable geometry, EGR system operation and the pre-postheating strategy with its temperature-dependent timing table. You also get the cooling circuit with its three thermostats, the lubrication circuit with the by-pass valves and oil pressure switch, and the additional power management (Boost) logic that selects different engine torque curves according to transmission range and PTO use.

The transmission portion of this Claas Axion 810-850 repair and diagnostic manual is unusually detailed. For the Hexashift gearbox it documents the Gima semi-Powershift architecture with its Hexashift set, Revershift set, robotised ranges and slow range. It provides the solenoid valve piloting laws in tabular form — ratios, SV1/SV2/SV3 currents and piston pressures — along with the Revershift, range and slow range module piloting laws. The CMatic gearbox chapter gives the sliding sleeve supply pressure checks for ranges K1 through K4, forward and reverse, plus engine pressure checks before and after the pressure filter, cooler inlet and outlet pressures, and the variable displacement pump pressure regulator values.

Chassis and hydraulic content spans the GPA 40 rear axle family, the suspended front axle with Proactiv suspension, the differential management system and the 4 wheel drive clutch. Hydraulic coverage includes the 110 l/min and 150 l/min load sensing circuits, the spool valve unit, rear lift electrohydraulic distributor, auxiliary spool valves and the steering unit with its OSPD 80/280 LS and LSR variants. The steering chapter documents toe-in adjustment, steering stop adjustment, maximum steering actuator pressure and shockproof valve opening pressure.

What This Claas Axion 810-850 Technical Support Manual Enables You to Do

This is the reference a technician reaches for when a fault code appears on the Cebis terminal, when a transmission range will not engage, when the front axle suspension locks in position, or when the rear lift fails to hold a load. The error code chapter alone is worth the manual: it maps every native code from the MFA, TR1, TR2, TR3, REH, SFA, BDG, ENG, HYD, MFT, EXT, VDC and TCU modules to its sender module, designation, cause, system response and the specific components to check. For each code you get the checking values and the test and measurement files needed to resolve the anomaly.

Because this Claas Axion 810-850 diagnostic manual includes the complete electrical function diagrams and connector pinouts for every harness, you can trace a fault from the sensor through the harness to the module and back. The connector diagrams list pin numbers, wire numbers, cross-sections, designations and the module or component each wire terminates at. The fuse plates and electronic plates are documented with relay allocations, fuse ratings and spare fuse listings. The hydraulic diagrams for both the 110 l/min and 150 l/min circuits show every valve, restrictor, accumulator, filter and measuring point, with the Claas component numbers keyed to a master list so you can identify a part by its number in the circuit.

For anyone maintaining or repairing an Axion 810, 820, 830, 840 or 850, having the correct torque values, pressure settings, calibration procedures and piloting laws in one place removes the guesswork. The manual covers both the Hexashift and CMatic gearbox variants, so it suits tractors regardless of which transmission is fitted. It also documents the Revershift clutch calibration procedure, the Speed Matching and Skip Shift logic, the front rear decoupling function and the Claas Sequence Management system.

Delivery is instant: the PDF is available for download immediately after payment. There is no shipping, no waiting for a physical book, and no restriction on which device you use. You can keep it on a laptop in the workshop, on a tablet in the cab, or print the pages you need for a particular job. The manual is written in English and runs to 1184 pages, making it one of the most complete single references for these tractors.