TRANSMISSION | 711.660 in MODEL 906.1/2/6/7 |
TRANSMISSION | 711.670 in MODEL 204 |
TRANSMISSION | 711.670 in MODEL 207 with ENGINE 651 |
TRANSMISSION | 711.670 in MODEL 212 |
711 589 01 37 00
Set of assembly clamps
711 589 17 15 00
Drift
Before attaching the 3rd/4th gear synchronizer unit, the 6th gear fixed gear and the constant speed gear, ensure that the respective seat on the countershaft and the contact surfaces of the components are free of grease.
A workshop press is required for pressing on. The press force required for the gear wheels is approx. 15 t and that for the synchronizer unit is approx. 3 t. Before installing, apply a thin coating of transmission oil to the clutch body, friction rings, cone rings, synchronizer rings and needle roller bearings.
1 | Attach clutch body (15) to 4th gear idler gear (16). |
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Do not mix up the clutch bodies (7, 15) of the synchronizer unit of 3rd/4th gear. The clutch bodies (7, 15) differ in the alignment of the tips of the teeth (arrows). The clutch body (7) is installed on the idler gear of 3rd gear.
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2 | Install friction ring (14) and cone ring (13). |
The cams of the friction ring (14) must point towards the drive side. The cams of the cone ring (13) must engage in the notches of the clutch body (15). |
3 | Install synchronizer ring (12). |
The toothing of the synchronizer ring (12) must point towards the idler gear of 4th gear (16). The cams of the friction ring (14) must engage in the notches of the synchronizer ring (12). |
4 | Attach synchronizer unit of 3rd/4th gear (11). |
The marking groove on the sliding sleeve collar of the 3rd/4th gear synchronizer unit (11) must point towards the drive side. The cams of the synchronizer ring (14) must engage in the cutouts of the synchronizer unit of 3rd/4th gear (11). |
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5 | Attach countershaft with output side on the workshop press mount. |
6 | Slide 4th gear needle roller bearing (17) onto countershaft. |
7 | Secure 3rd/4th gear synchronizer unit (11) and 4th gear idler gear (16) using assembly clamp (21) and press on all the way using drift. |
8 | Remove assembly clamp (21). |
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9 | Install synchronizer ring (10) and cone ring (9). |
The cams of the synchronizer ring (10) must engage in the cutouts of the synchronizer unit of 3rd/4th gear (11). The cams of the cone ring (9) must point towards the drive side. |
10 | Attach friction ring (8) and clutch body (7). |
The lobes on the friction ring (8) must engage with the cutouts of the synchronizer ring (10). The cams of the cone ring (9) must engage in the notches of the clutch body (7). |
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11 | Press on thrust plate (6) and 3rd gear bushing (5) all the way using drift. |
The thrust plate (6) must abut with the wide contact surface on the synchronizer unit of 3rd/4th gear (11). |
12 | Attach 3rd gear needle roller bearing (4) and 3rd gear idler gear (3). |
The straight toothing of the idler gear of 3rd gear (3) must engage in the clutch body (7). |
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13 | Press on 6th gear fixed gear (2) all the way using drift. |
The collar of the fixed gear of 6th gear (2) must point towards the drive side. After pressing on, the 3rd and 4th gear idler gears must turn freely. |
14 | Press on constant speed gear (1) all the way using drift. |
The collar of the constant speed gear (1) must point towards the fixed gear of 6th gear (2). |
15 | Remove countershaft (18) from the workshop press mount. |
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16 | Clip on intermediate plate roller bearing (19). |
17 | Screw oil guide ring (20) onto toothing. |
The installation position of the oil guide ring (20) must be adjusted when moving together the countershaft (18) and main shaft. |
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