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Old 9th March 2014, 15:22
G-CPTN G-CPTN is offline  
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Join Date: Sep 2008
Location: Tynedale
Age: 79
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Although your vehicle is a Leyland, the parts would be from Clayton Dewandre or Bendix Westinghouse and common with parts fitted by other vehicle manufacturers.

Is the fault with the unloader valve or the compressor?
The unloader valve signals the compressor delivery valve to 'unload'.
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