Specifications, Service and Repair of Farm and Lawn Tractors

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Massey Ferguson 3060, 3065 tractor Gearbox


Massey Ferguson 3065, 3060, 3070, 3080 tractors have a transmission which consists of five main housings:

- the gearbox assembly, which also serves as a clutch housing.

- the centre housing which includes the differential assembly, the power take off line and 4 wheel-drive clutch. It also holds the side hydraulic covers.

- the axle housings right and left.

- the lift cover.

These five parts are common to the whole range. The models fitted with 6 cylinder engines have an adapter plate located between the engine and gearbox.

MF 3060, 3065 tractor Clutch

The clutch is a single-plate unit. The mechanism has a diaphragm which is hydraulically operated by a piston. Clutch types: push clutch and pull clutch. A shaft driven by a splined hub connected to the engine flywheel passes through the gearbox assembly and transmits rotation to the power take-off clutch.

The power take-off clutch housing drives the hydraulic pump via drive gear.

In reverse, speed is:

- 7% faster than in forward in range A
- 7% slower than in forward in range B

Massey Ferguson 3060, 3065 tractor Gearbox Speedshift

In addition to the main box and the reversing assembly, by means of a hydraulic device with an epicyclic train placed before the reversing gear, operated by a solenoid, two input speeds can be added, taking the number of possible speeds to 32.

Creeper gear housing

By means of a housing fitted on the output shaft, after the main box, a range of greatly reduced travel speeds can be obtained .This housing consists of an epicyclic type reduction gear, with a ratio of 4.1, driven mechanically, which should be engaged only if the main box is in the slow (Tortoise) position.

MF 3065, 3060 tractor Gearbox assembly

Main box

The main gearbox has eight basic speeds (2x4). It consists of a train of four gears to which a set of two gears is added so that a slow (Tortoise) range and a fast (Hare) range can be obtained.

All the gears are in constant mesh and the speeds are selected by synchromesh units, except the Hare/ Tortoise range. These eight speeds can be selected with a single lever.

Reverse gear assembly and A/B range

This consists of an assembly of two sets of gears placed in front of the main box; one driving, fitted on a hollow shaft, the other driven, fitted on the main box countershaft. The two ranges are selected by two synchro-mesh units operated by the reversing gear lever when it is moved to the neutral position.

With this layout, the number of speeds can be doubted and 16 forward and reverse speeds can be obtained. With a compound gear cluster located between the hollow shaft and the countershaft, the direction of rotation of the countershaft can be reversed.

Main gearbox

In order, the gearbox housing has the following major components:

- the engine clutch operating device.

- the input housing enclosing the speedshift (if fitted) and the reverse gears.

- the main gearbox.

- the creeper gear housing (if fitted).

We will restrict ourselves to describing only the main box, as each major component is covered by an individual description in the section dealing with it.

Massey Ferguson 3060, 3065 tractor gearbox Construction



Fig.1. Part list

(1) Bearing cone, (2) Bearing cup, [3] Shims, (4) Spacer, (5) Circlip, (6) Washer, (7) 1st drive gear, (8) Bush, (9) 1st gear synchro cone, (10) 1st gear synchro cup, (11) 1st and 2nd gear synchro, (12) 2nd gear synchro cup, (13) 2nd gear synchro cone, (14) 2nd drive gear, (15) Circlip, (16) Bearing cup, (17) Searing cone, (18) 3rd drive gear, (19) Circlip, (20) 3rd gear synchro cone, (21) 3rd gear synchro cup, (22) Washer, (23) 3rd and 4th gear synchro, (24) Needle roller bearing, (25) 4th gear synchro cup, (26) Circlip, (27) Thrust washer, (28) Combined bearing, (29) 4th gear drive pinion (High range), (30) Combined bearing, (31) Coupler, (32) Thrust washer, (33) Coupler hub, (34) Circlip, (35) Bush, (36) Gear (Low range), (37) Bearing cup, [38] Shims, (39) Bearing cone, (40) Bearing cone, (41) Bolt, [42] Shims, (43) Spacer, (44) Output shaft, (45) Circlip, (46) Lock plate, [47] Shims, (48) Bearing cup, (49) Circlip, (50) Washer, [51] Shims, (52) Bearing cup, (53) Bearing cone, (54) Layshaft, (55) 4th driven gear, (56) 3rd driven gear, (57) Circlip/Spacer, (58) Circlip, [58] Shim, (59) 2nd driven gear, (60) 1st driven gear, (61) Circlip,
(62) Needle roller bearing, (63) Bearing cone, (64) Bearing cup, (65) Gearbox housing, (66) Input shaft housing assembly, (67) A range gear, (68) Nut, (69) Mainshaft, (70) Circlip, (71) Oil feed pipe, (72) Spring, (73) Spur washer, (74) Bush, (75) Needle roller bearing, (76) B range gear, (77) B range synchro cup, (78) A/B synchro, (79) Needle roller bearing, (80) A range synchro cup, (81) Bush, (82) Sleeve



Fig.2. Part list

(1) Bearing cone, (2) Bearing cup, [3] Shims, (4) Spacer, (5) Circlip, (6) Washer, (7) 1st drive gear, (8) Bush, (9) 1st gear synchro cone, (10) 1st gear synchro cup (11) 1st and 2nd gear synchro, (12) 2nd gear synchro cup, (13) 2nd gear synchro cone, (14) 2nd drive gear, (15) Circlip, (16) Bearing cup, (17) Bearing cone, (18) 4th drive gear, (19) Circlip, (20) 4th gear synchro cone, (21) 4th gear synchro cup, (22) Washer, (23) 3rd and 4th gear synchro, (24) Needle roller bearing, (25) 3rd gear synchro cup, (26) Circlip, (27) Thrusi washer, (28) Combined bearing, (29) 3rd gear drive pinion (High range), (30) Combined bearing, (31) Coupler, (32) Thrust washer, (33) Coupler hub, (34) Circlip, (35) Bush, (36) Gear (Low range), (37) Bearing cup, [38] Shims, (39) Bearing cone, (40) Bearing cone, (41) Bolt, [42] Shims, (43) Spacer, (44) Output shaft, (45) Circlip, (46) Lock plate, [47] Shims, (48) Bearing cup, (49) Circlip, (50) Washer, [51] Shims, (52) Bearing cup, (53) Bearing cone, (54) Layshaft, (55) 3rd driven gear, (56) 4th driven gear, (57) Circlip/Spacer, (58) Circlip, [58] Shim, (59) 2nd driven gear, (60) 1st driven gear, (61) Circlip, (62) Needle roller bearing, (63) Bearing cone, (64) Bearing cup, (65) Gearbox housing, (66) Input shaft housing assembly, (67) Input gear, (68) Nut, (69) Mainshaft, (70) Circlip, (71) Oil feed pipe, (72) Spring

The main gearbox has four synchromesh speeds. With a gear fitted free running on the output shaft, to which it can be locked by a coupler, the initial four speeds can be doubled to obtain the basic eight speeds.

The mainshaft and layshaft are supported by taper roller bearings. The output shaft is fitted in two taper roller bearings and one needle roller bearing.

All the gears are helical and in constant mesh. The lubricating oil comes from the front housing and passes through an oilway drilled along the centre line of the mainshaft and output shaft.

Radial oilways direct oil to the various different lubrication points of the gears, bearings and bushes.

The top shafts are lubricated by the film of oil circulating between the PTO shaft and the layshaft. This film lubricates the end taper roller bearings and the needle roller bearing (62).

Radial oilways in the shaft (54) and radial recesses on the driven gear make oil pass between all the gears. The contact area between teeth of the shaft (54) and the gear (36) is also lubricated by a radial hole drilled in the shaft.

To ensure correct operation according to the forces to which the transmission is subjected, the bearings are fitted with preload (in the case of the mainshaft) or with end float (in the case of the layshaft).

The output shaft can be shimmed with either a small amount of play or light preload.

Speed driving gear (7) is fitted free-running on a bush (8), the 2nd speed driving gear (14) and 3rd speed driving gear or 4th speed driving gear (4x2) (18) are fitted free running on the shaft direct.

The 4th speed driving gear or 3rd speed driving gear (4x2) (29) is fitted on needle roller bearings (28) and (30). These act as axial thrust bearings.

The hub (33) of coupler (31) is solid with the output shaft (44). Driven gears (55), (56), (59) and (60) drive the layshaft (54) by splines. The teeth of shaft (54) is in constant mesh with the Tortoise gear (36), fitted free-running on the output shaft.

MF 3060, 3065 tractor gearbox Operation

Low (Tortoise) range

This speed is engaged by moving one of the couplers of the synchromesh devices (11) and (23) to link in rotation the countershaft (69) with one of the 4 gears fitted free-running.

Which ever gear is selected, the movement is transmitted to the layshaft (54). The output shaft (44) is driven by the layshaft machined teeth in constant mesh with the free-running gear (36) solid with the output shaft by moving the coupler (31) of hub (33) back.

High (Hare) range

This range is selected by moving forward the coupler (31) which puts the driving gear (29) and the output shaft in direct mesh,

Therefore, in 4th speed (4x4) and in 3rd speed (4x2), the layshaft (54) is non-functional.

The other speeds are obtained by movement of the couplers of the synchromesh devices (11) and (23) as in the Tortoise range. Movement is transmitted to the output shaft (44) by driven gears (55) and (29).

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