Stihl BT 131, Service Manual

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BT 131 16
11.1 Tools, Servicing Aids
–
Socket, T27 – 0812 542 2104
–
Assembly tool – 1117 890 0900
–
Torque wrench – 5910 890 0302
–
Screwdriver, T27x200 – 5910 890 2415
–
Pin punch, 3 mm (1/8 in)
–
STIHL multipurpose grease – 0781 120 1110
–
STIHL gear grease – 0781 120 1118
–
Loctite 242 (medium-strength threadlocking
adhesive) – 0786 111 2101
11.2 Testing Auger Brake
N
Engage the auger brake.
N
Start the engine.
N
Open the throttle wide for no more than 3 seconds –
the auger must not rotate.
N
With the engine at idle speed, disengage the auger
brake.
N
Open the throttle wide.
N
Activate the auger brake manually – the auger must
come to a standstill without any perceptible delay.
11.3 Removing the Brake Band
N
Preparations,
@
3.1.
N
Disengage the auger brake.
N
Remove handlebar together with control handle,
@
5.2.
N
Remove the powerhead,
@
7.2.
N
Remove clutch housing together with gearbox,
@
9.2.
N
Remove clutch housing from the gearbox,
@
9.4.
N
Remove the clutch drum,
@
10.3.
N
Take out the screw (12).
N
Remove the cover (11).
N
Remove the cover (18).
N
Engage the auger brake.
11 Auger Brake
14
15
16
18
17
1
M8x10 (18 Nm / 159 lbf. in.)
M5x12 (8 Nm / 71 lbf. in.)
3
13
M5x12 (8 Nm / 71 lbf. in.)
12
M4x12 (4 Nm / 35 lbf. in.)
2
4
5
5
6
7
8
9
10
11
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