Stihl 4180 Series - Fan Housing, AV System; Tools, Servicing Aids; Removing the Fan Housing; Installing the Fan Housing

Series 4180 Powerhead 15
7.1 Tools, Servicing Aids
– Jaws (profile No. 9) – 0000 893 3707
– Socket, T27x125 – 0812 542 2104
– Pliers A10 flat – 0816 610 1495
– Sleeve – 1120 893 2400
– Press sleeve – 4119 893 2400
– Extension – 4180 893 4400
– Torque wrench – 5910 890 0302
– Torque wrench – 5910 890 0312
– Screwdriver, T27x200 – 5910 890 2415
– Puller – 5910 890 4400
– Ring – 5910 893 7005
– OH 723 press fluid – 0781 957 9000
7.2 Removing the Fan Housing
N Remove the shroud, @ 4.2.
N Loosen screw (9) on the clamp (6).
N Pull the drive tube out of the fan housing (3).
N Take out the screws (4) and remove the fan
housing (3).
7.3 Installing the Fan Housing
N Fit the fan housing (3) on the clutch.
N Insert and tighten down the screws (4).
N Push the drive tube into the fan housing (3) and line it
up.
N Insert and tighten down the screw (9).
N Install the shroud, @ 4.5
7.4 Removing Rubber Element
N Remove the fan housing, @ 7.1
N Remove the retaining ring (7).
7 Fan Housing, AV System
1 3
4 D5x24 (6 Nm / 53 lbf. in.)
5
4 D5x24 (6 Nm / 53 lbf. in.)
6
2
9 D6x32 (7 Nm / 62 lbf. in.)
8
7
0000-GXX-1922-A0