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15th August 2011 | 07:44

#6 (permalink)

rudderrudderrat

Joined: Oct 2009

Posts: 1,270

Likes: 0

From: UK

Hi MB2002,

Quote:

The reason for the AUTO logic of the PTU, when on ground, is to allow power push.

Please explain. I don't understand why AB doesn't permit the hyds being pressurised via the PTU when the Park Brake is set.

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