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MF 3060, 3065 tractor Gearbox assembly

Removal and preparation

Fig.1

Split Massey Ferguson 3065, 3060, 3070, 3080 tractors between the gearbox and the rear axle.

Place a sling under the gearbox (Fig.1). Split the tractor between the gearbox and the engine or separate the gearbox from the engine. Remove the PTO shaft.

Fig.2

Remove:

- the PTO clutch hydraulic feed pipe,
- the engine clutch slave cylinder supply pipe,
- the T-piece and 1.5 bar valve,
- the 90; oil return pipe connection,
- the Datatronic sensor and its bracket (ii fitted).
- the LH cab support

Lay the gearbox on its LH side and lift it on to a suitable stand or work bench. Remove the A/B range (4x4 gearbox) feed pipe (1) (17 bar) (Fig.4).

Remove the bolts (2). (Fig. 4). On gearboxes fitted with a creeper range, remove the control cable bracket and mark the position of the centring bolt 3.

Remove the cover (4) and bolt (5). (Fig. 4)

Fig. 4

Shifter rail and forks - Removal:

Fig.5

Fig.6

- Gearbox fitted with creeper range. Remove the pin (1), the locknut (2), the adjustable setscrew (3). the fork (4) with the sleeve (5). (Fig.5)

- Remove me plugs (1). the sonngs (2) and locking plungers (3) from forks (5) and (6) (Fig.6)

- Slacken the castellated nut using spanner 3615334 M01.

- Engage 4th gear (4x2 gearbox) or 3rd gear (MF 3060, 3065 tractor 4 x 4 gearbox).

- Release the cone (24) on the shifter rail (7) using a bronze drift (Fig.8).

- Remove the setscrew (8).

- Eject the plug forwards by tapping the end of the rail (7) (Fig. 9)

Remove:

- the bearing (15)
- the shifter rail (7) rearwards
- 1st and 2nd gear fork (5) and 3rd and 4th gear fork (6) the lock assembly (25)

Disassemble:

- the castellated nut (21)
- the latch (22)
- the tapered bearing (23)
- the cone (24)

Remove:

- the screws (19)
- the piston (13)
- the High/Low range fork (20)
- the bolt and washer assembly (17) and the guide (18)
- the cylinder (10)

- Discard the seals (12) and (14) from piston (13) and the seal (11) from the cylinder (10).

- The A/B fork (4) stays in the housing (MF 3060, 3065 tractor 4x4 gearbox).

Fig.8

Fig.9

Input shaft housing - Removal:

Fig. 11

Fig. 12

- Immobilize the layshaft assembly using the locally made-up tool.

- Remove the drain pipe {1) from the clutch slave cylinder and the union (2) on the housing (Fig. 11).

- Place a sling under the housing assembly, taking care to avoid damaging the needle roller bearing (4) (Fig. 12).

- Remove the eight 10 mm diameter bolts (3) (Fig. 11). Note: It is not necessary to remove the selector (5) (Fig. 13) in order to remove the housing.

- Release and withdraw the housing assembly by tilting it to the left (Fig 12). (Fig.13 and 14)

- Retrieve the locating dowel (8). Discard the oil seals (6) and (7).

Fig. 13

Fig. 14

Layshaft - Disassembly:

Fig.16

- Withdraw the layshaft complete,

- Remove the washer (50).

- Remove the shims [51].

- Remove the cup (52). Disassembly of shaft (54) (Fig.16).

- A new shaft fitting was introduced from serial number P345012 (version b). MF 3065, 3060 Tractors prior to this number are fitted with version a.

- Withdraw the taper roller bearings (53) and (63). Note: Keep the bearings and cups in matched pairs for possible re-use.

- Remove the circlip (61).

- Remove 1st gear (60) and 2nd gear (59).

- Remove 1st gear (60). the shims [58] and 2nd gear (59).

- Remove circlips (58) and (57) (Fig. 16). b) Remove spacer (57)

- Remove 4th gear (56) (4x2 gearbox) and 3rd gear (55) (4x2 gearbox)

- Remove 3rd gear (56) (4x4 gearbox) and 4th gear (55) (4x4 gearbox).

- Drift out the needle roller bearing (62) (Fig. 17) and discard it.

Fig.17

MF 3060, 3065 tractor Creeper gearbox

Removal:

Fig.18

Fig.19

Remove the bolts (1).

Remove the creeper gearbox assembly (2). The locating dowels (3) are held in the gearbox.

Output shaft - Disassembly:

- If the tractor is fitted with a creeper gearbox, see above.

- Remove the 3 bolts (41),

- Remove the lock plate (46).

- Remove the bearing cue (48).

- Keep the bearings and cups in pairs for possible re-use.

- Remove the circlip (45).

- Remove the spacer 43 and shims [42].

- Remove the taper roller bearing (40).

- Where shims have had to be inserted between bearings, remove the shim adjuster(s) [47]

- Remove the roller bearing (39).

- Remove the shims [38],

- Engage the High/Low range coupler (31) (Fig. 19) on me Low range pinion (36)

- Withdraw the shaft (44) rearwards.

- Remove the circlip (34) using tool MF 460 and discard it (Fig. 19).

- Remove the shaft,

- Through the inspection panel in the selector rail mechanism cover, withdraw: the hub (33) and its coupler, the gear (29) (3rd gear 4x2 gearbox and 4th gear 4x4 gearbox), the synchromesh cup (25). the two thrust washers (32)-{27) and the Low range gear (36).

- Remove the cup (37).

- Remove the circlip (49).

- Remove the circlip (19). the washer (22) and the needle roller bearing (24).