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BRAKES 5-15 SERVICING LOAD SENSING PROPORTIONING VALVE (LSPV) Location of LSPV Structure and Operation The following is an explanation of the structure and operation • Structure This device consists of a load sensing spring (bending bar) and a valve. The valve is mounted through a bracket to the frame. One end of the load sensing spring is fixed to the valve at the frame and the other end to the rear axle housing through a shackle. |