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One more thing that can cause lock up,Check the brake pedal return.Pedal should have about one inch or a bit less free play.Sometimrs the brake light switch that rides on the arm of the pedal will get kicked or bent and not let the pedal return all the way back up.Or anything under the arm that does not let it return all the way up,This keeps the return hole covered inside master and fluid can't get back inside cyl.The new p30s have a different system for parking prake,and I have not worked on them. Check the post on RV.net OPEN ROAD FORUM. Lots of post there on parking brake hanging up. If its hanging someone can tell to free it up. Good Luck Mike |
RV and bus conversion info since 1996.
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