Husqvarna 155 manual Replacing the break-pin BioClip, Removal of BioClip plug Combi

MAINTENANCE

Replacing the break-pin (BioClip 90)

The blades are fitted with a break-pin to protect the BioClip unit and its drive when colliding with obstacles. A domed, spring friction washer is fitted to each blade bolt. The washer must always be replaced with a new washer if the blade bolt is loosened. Otherwise the break-pin can break causing the blades to collide.

Only use original spare parts. A set containing a blade, break-pin and friction washer can be purchased from your dealer.

1.Put the cutting unit in the service position, see ”Service position for the cutting unit\Placing in the service position”.

2.Remove the blade (2A) by removing the blade bolt with washer and friction washer (2B).

3.Remove the remains of the broken break-pin (3).

4.Make sure the contact surfaces (4) on the blade and the blade mounting are metalic clean. Clean if necessary.

5.Fit one new break-pin (5) in the blade mounting.

6.Fit the blade (6) and make sure it is fitted as illustrated.

7.Fit a new friction washer (7) with the concave face turned towards the blade.

8.Fit the blade bolt with washer (8). Tightening torque 45-50 Nm (4,5-5 kpm/32-36 lbft).

Removal of BioClip plug (Combi)

To change a Combi unit from BioClip function to cutting unit with rear ejection, remove the BioClip plug located under the unit with three screws.

1.Put the unit in the service position, see "Placing in the service position".

2.Remove the three screws holding the BioClip plug, and remove the plug.

3.Tip: Fit three full-thread screws M8x15 mm in the screw holes to protect the threads.

4.Replace the unit in normal position.

Fit the BioClip plug in the reverse order.

5

3

2A

4

6

4

7

2B

8

8009-137

6017-227

Service position

8009-289

Removal of BioClip plug

40 – English