Cooling fan belt tension

[maximus]

I need to adjust the cooling belt and have located the wing nut which adjusts the tensioning pulley. I have loosened the bolt with WD40 but still cannot turn it much. Is there a locking screw on this bolt? I don't want to apply too much force with pliers etc, as could shear of the bolt.

Thanks in advance.

Chris

 

[Dennis]

On my B7100 there is a locking nut on the outside face ( radiator side) of the fan belt pully.
Dennis

 

[maximus]

On my B7100 there is a locking nut on the outside face ( radiator side) of the fan belt pully.
Dennis

Thanks Dennis. I guessed thee was some sort of locking nut. I'll take a closer look.

 

[maximus]

On my B7100 there is a locking nut on the outside face ( radiator side) of the fan belt pully.
Dennis

Sorted - thanks Dennis.

Belt adjusted to correct tension and she 'sings like a bird!'