My PIG makes Robocop noises!!!

[Fred4stroke]

Guys, just a quick question.

My 1150GSA makes strange noises (robotic sounds) when I pull the brakes while standing still.  ???

I am not technical at all so don't have a clue where to start looking. 

When I brake hard enough the noise stops.

Is this normal or do I have to worry?

 

[Chrisl]

 

[silvrav]

 

[Gypsybaron]

 

[Fred4stroke]

 

[Welsh]

 

[silvrav]

 

[Fred4stroke]

 

[Lew]

 

[Beemer Mike]

 

[Pavlovski]

 

[Welsh]

 

[Fred4stroke]

 

[Mayhem]

 

[Welsh]