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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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SPECS
LOADERS
MAINTENANCE
PROBLEMS________________________________________________________________________________________
MF 1523
MF 1531
MF 135
MF 1547
MF 1635________________________________________________________________________________________
231
231S
235
240
241________________________________________________________________________________________
255
265
274
285
375________________________________________________________________________________________
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916X Loader
921X Loader
926X Loader
931X Loader
936X Loader________________________________________________________________________________________
941X Loader
946X Loader
951X Loader
956X Loader
988 Loader________________________________________________________________________________________
1655
GS1705
1742
2635
4608________________________________________________________________________________________
1080
1100
2615
3050
3060________________________________________________________________________________________
4708
5455
5450
5610
5613________________________________________________________________________________________
DL95 Loader
DL100 Loader
DL120 Loader
DL125 Loader
DL130 Loader________________________________________________________________________________________
DL135 Loader
DL250 Loader
DL260 Loader
L90 Loader
L100 Loader________________________________________________________________________________________
6499
7480
7618
7726
1533________________________________________________________________________________________
2604H
2607H
4455
4610M
4710________________________________________________________________________________________
L105E Loader
L210 Loader
1014 Loader
1016 Loader
1462 Loader________________________________________________________________________________________
1525 Loader
1530 Loader
232 Loader
838 Loader
848 Loader________________________________________________________________________________________
5712SL
6713
6715S
7475
7615________________________________________________________________________________________
7716
7724
8240
8650
8732________________________________________________________________________________________
246 Loader
1036 Loader
1038 Loader
1080 Loader
856 Loader