________________________________________________________________________________
Massey Ferguson 6480 Tractor Specification Review
MF 6480 Tractor Engine Specs
Engine Model - Perkins 1106D-E66TA
Engine Power, Rated, hp (kW) - 145 (108)
Engine Speed, rpm - 2200
Power Boost, hp (kW) - No boost
Fuel Tank, gal (L) - 70 (270)
Cylinders - 6
Displacement, cu in (L) - 403 (6.6)
Engine Bore, in (mm) - 4.134 (105)
Engine Stroke, in (mm) - 5.0 (127)
Block Design, Replaceable Liners - Parent bore
Aspiration, Turbocharged or Naturally Aspirated - Turbo air to air
aftercooled
Fuel System Type - High Pressure Common Rail
Fuel System Control - Electronic
Fuel Injection to combustion chamber - Direct
Emission Level - Tier 3
Exhaust Pipe - Vertical
Fan Drive Type - Belt
System Rating, Volts - 12
Alternator Rating, Amps - 120 Std / 150 Opt
Massey Ferguson 6480 Tractor
Transmission
Description - Auto 6 Semi Powershift
Transmission Type - Synchronized Gear
Forward / Reverse Speeds - 24F / 24R
Maximum Speed Forward, mph (kph) - 24.9 (40)
Creeper Range - Yes
Shuttle (Forward-Reverse) - Yes
MF 6480 Tractor PTO
PTO Horsepower, hp (kW) - 120 (89.5)
PTO Speeds, rpm - 540 / 540E / 1000 / 1000E
PTO Type - Independent
Wheels
Drive Wheels - 2WD / 4WD
Steering - Front Steer
Massey Ferguson 6480 Tractor Rear Axle
Final Drive - Planetary / Inboard
Axle Output End - Bar standard
Suspended Front Axle - Opt / Std w/50Kph Trans
Brakes
Brake Type - Wet Disc
MF6480 Tractor Hydraulic
System
Hydraulic System Type - Closed Center PFC
Main Hydraulic Pump Type - Gear Pump
Standard Pump Flow, gpm (Lpm) - 29 (110)
Standard Remote Valves - 2
3-Point Hitch Features
3-Point Hitch - Category 2
Draft Sensing or Lift Control - Lower Link
Draft Link Ends Adjustable - Yes
MF 6480 Tractor 3-Point Hitch Lift
Capacity
Standard Lift Capacity 24 Inches behind pin, lb (kg) - 9,391 (4260)
Drawbar
Drawbar Description - Swinging
Wheelbase
2WD, in (mm) - 111.3 (2827)
4WD, in (mm) - 111.3 (2827)
Tire Size
Front Tire Size, 2WD - 10.00 x 16
Front Tire Size Width, 4WD - 14.9R28
Rear Tire Size Width - 18.4R38
Massey Ferguson 6480 Tractor GPA20
rear axle
The MF6480 Tractor rear axle comprises four
main housings:
- the centre housing which contains the crow nwheel and pinion, the
power take-off transmission in all variants as well as the 4-wheel drive
tractor transmission, the hand brake control mechanism and the main
brakes. It also supports the two trumpet housings, the linkage cover
plate, and the side cover plates.
- the right and left-hand trumpet housings fixed to each side of the
centre housing, acting as a housing for the rear wheel drive system.
- The linkage cover plate fitted to the top of the centre housing
supports the linkage arms, which are connected to the Massey Ferguson
6480 Tractor hitch.
Centre housing assembly
Differential
The pinion is driven by the gearbox output shaft, attached to the
connecting shaft by splined sleeves. The helical crown wheel and pinion
assembly transmits the drive to the trumpet final drive units.
A differential lock system with a dog clutch and activated by hydraulic
pressure is incorporated into the unit. The differential lock is
controlled either by the Autotronic 5 for models fitted with a Power
Shuttle, or by an electrical circuit for models fitted with a mechanical
reverse shuttle.
4-wheel drive clutch
A driving gear attached to the pinion drives the counter driven gear of
the 4WD clutch assembly. Drive is then transmitted via the Belleville
washers to the clutch output shaft.
The 4WD clutch is hydraulically activated. There is therefore no
possibility of accidental disengagement of the 4WD clutch in the event
of hydraulic failure.
MF 6480 Tractor Power take-off drive
line
The rotation of the shaft passing through the gearbox, proportional to
engine speed, is transmitted to the hydraulic clutch located at the
front of the centre housing.
In the clutch engaged position, drive is transmitted by an intermediate
shaft and a set of driving and driven gears to the 540 or 1000 rpm PTO
shaft.
Speeds are selected by a system of interchangeable shafts or by
shifting. A hydraulic brake mechanism stops the rotation of the PTO
shaft in the disengaged position.
Two additional options are offered:
- 4 speed economy PTO.
- GSPTO.
Hand brake assembly
A brake assembly comprising three discs and an expanding mechanism is
fitted to the pinion.
Main brakes
Two pistons fitted laterally into two cavities in the centre housing act
on two discs attached to the trumpet housing input sun gears. The brake
pistons are activated hydraulically.
MF6480 Tractor Front
Axle Spec
Axle model - 740/605
Axle type - Fixed Suspended
Length between flanges (mm) - 1784
External length (mm) - 2088
Length between steering pivots (mm) - 1520
Pivot angle - 5.5°
Castor angle - 5°
Camber - 1° 1° 1°
Weight filled with oil (kg) - 620
Differential oil capacity (litres) - 9
Oil capacity per final drive (litres) - 2
Pivot shaft diameter (mm) - 60
Stud useful length (mm) - 50
Stud distribution diameter (mm) - 335
Rim centring diameter (mm) - 280.6 +0/-0.3
Input shaft - 2 jaws of 1410
Rotational direction - anti-clockwise
Total ratio - 17
________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________