2004–2013 Massey Ferguson 6475, 6480, 6485, 6490, 6495, 6499, 6497, 6470, 6465, 6460, 6455, 6445 workshop service manual (P/N 3378405M4)

This 12-part, 4,029-page PDF set contains the Massey Ferguson Workshop Service Manual no. 3378405M4 for models 6445, 6455, 6460, 6465, 6470, 6475, 6480, 6485, 6490, 6495, 6497, and 6499. It is organized as factory workshop material, not owner-level maintenance literature. AGCO states that the manual was prepared to assist dealers and agents; its repair depth, service-tool references, and calibration work make it best suited to professional technicians or equivalently experienced mechanics with the proper shop equipment.

• Configuration coverage distinguishes Perkins and Sisu engine installations; GBA20 and GBA10 Dynashift, GBA25 and GBA15 Dyna-6 transmissions; GPA20, GPA30, and GPA40 rear axles; and Carraro, Carraro 20.48, and Dana front axle arrangements.
• Tractor splitting procedures cover front frame-to-engine separation for Perkins and Sisu installations, the dedicated MF 6497-6499 front-frame split, engine-to-gearbox separation, gearbox-to-center-housing separation, PTO housing removal, GPA30 intermediate-housing work, and GTA1030/GTA1040 reinforcements.
• Transmission and PTO repair includes PowerShuttle removal, Dynashift and Powershift module teardown, GBA25 robotic gearbox shaft service, selector-rail and fork adjustment, creeper and Super Creeper units, clutch-pack work, shaft shimming, PTO brake service, and final operating checks.
• Rear- and front-axle work covers normal-duty, heavy-duty, sealed heavy-duty, and composite trumpet housings; brake pistons; drive pinions; five- and seven-inch differential locks; final drives; wheel hubs; 4WD clutches; suspension arms; steering geometry; backlash checks; and differential shimming.
• Hydraulic diagnosis and repair is separated into Open Center, Load Sensing, and Twin Flow Load Sensing systems. Factory procedures address pressure and flow testing, pump and hydraulic-cover service, auxiliary valves, hitch control, assisted and trailer brakes, ParkLock, Orbitrol steering, steering rams, and suspended-front-axle control units.
• Electronic troubleshooting covers Perkins EEM and Sisu EEM2 injection, DCC2, Autotronic 3 and 5, EHRC linkage, Datatronic 2 and 3, SMS/FingerTIP, ParkLock, and Carraro/Dana suspension controllers, with programming, test routines, error codes, calibration, parameter setting, and electrical diagrams. SisuDiesel software selection tables identify serial breaks for the 6485 at N258068/N258069, 6490 at N342061/N342062, 6495 at N344031/N344032, 6497 at N345039/N345040, and 6499 at N307025/N307026.

PDF Set Breakdown

4,029 PDF pages total — Introduction and Specifications: 73 pages; Splitting the Tractor: 206; Engine: 68; Gearbox: 482; Rear Axle: 484; Power Take Off: 262; Front Axle: 370; Hydraulics: 622; Electrical Equipment: 186; Electronics: 1,150; Cab and Equipment: 88; Accessories: 38.

Reference Data, Tools, and Diagrams

The specifications material supplies model-by-model configuration tables, ground-speed data, dimensions, fluid capacities, metric and inch fastener torque tables, component-specific tightening data, sealing-product references, pressure-test specifications, inspection limits, clearances, shimming data, and electrical test values.

Named diagram coverage includes the GBA20 reverse-shuttle hydraulic circuit and GTA1040, GTA2020, and GTA2520 load-sensing diagrams. The electrical chapters add complete Perkins EEM CAN networks, Sisu EEM2 wiring and connector diagrams, DCC2 Dyna-6 and Autotronic 5 schematics with harness parts lists, Carraro and Dana suspended-axle component layouts, and automatic air-conditioning diagrams. Service-tool references include the 3378225M11 PowerShuttle housing sling, 3376920M2 planet-carrier compression tool, and Carraro CA119030 square-head wrench, plus drawings for locally made fixtures where specified.

Engine Scope and Repair Cautions

The engine volume provides Perkins and Sisu specifications, fuel/oil/coolant standards, EEM/EEM2 controller and injection-pump procedures, pump timing, ECU-to-pump serial-number matching, spacers, and engine/transmission links. It is not a full internal engine overhaul manual for crankshaft, piston, connecting-rod, or cylinder-head rebuilding.

Several assembly cautions matter during major repair work. In the GBA10 mainshaft procedure, the laminated shim must face the gearbox housing; reversing it can damage the shim stack when the shaft is loaded. Carraro differential procedures require replacement of the ring nut and flexible spacer and warn that the two adjustment nuts are not interchangeable; reuse or reversal can disturb bearing preload and ring-and-pinion backlash.

Tractor splits, axle and cab support work, and hydraulic testing involve suspended loads and stored pressure. Use the stands, slings, isolation steps, and component-specific torque instructions identified in the manual before disassembly.