Removing the fan drive (see Fig. 1)
Remove the front harness bracket (2) (650.3724142) by unscrewing the fastening bolt and nut
Unscrew the nuts securing the fan pulley bracket (1) and remove the fan drive assembly (fan pulley - 650.1308025, fan pulley bracket - 650.1308063).
Disassembly of the fan drive
The numerical designations indicated in the text correspond to Fig. 2.
- 1. Loosen the screw (1).
- 2. Remove washer (2).
- 3. Remove the fan pulley with axle assembly.
- 4. Remove the circlip (7).
- 5. Press out the shaft of the fan pulley (5) using a press.
- 6. Press bearings (6) and (4).
Fan drive assembly (See Fig. 3)
- 1. Using a press and tool 3016 + 2363, press in the bearing (4) as far as it will go (see Fig. 3-1).
- 2. Install the fan pulley axle (5) using a hydraulic press (see Fig. 3-2).
- 3. Using a press and tool 2513, press in the bearing (6) as far as it will go (see Fig. 3-3).
- 4. Install the circlip (7).
- 5. Install the fan pulley and tighten the bolt to Mcr = 150 ± 30 Nm.
Installing the fan drive
- 1. Install the fan drive in the reverse order of removal.
- 2. Screw on 4 nuts M10 (1) (311422) fastening the fan drive (see Fig. 4) tighten to a torque of Mcr = 60 ± 12 Nm.
- 3. Install the front harness bracket (2) (650.3724142) by screwing the M10-6gx25 bolt (3) (31020) into the hole in the fan pulley bracket (4).
- 4. Screw the nut (5) securing the harness bracket onto the stud.
- 5. Tighten the bolt (3) with a torque of Mcr = 40 ± 8 Nm and the nut (5) with a torque of Mcr = 40 ± 8 Nm.
Fan Drive Repair Tools
3016 drift 5000263016
2363 pusher set 5000262363
