BRAKES 62 6.1.4 LOAD SENSING PROPORTIONATING VALVE (LSPV) (FOR NON ABS VEHICLE ONLY) GENERAL DESCRIPTION LSPV is required in the braking system during severe braking. At the time of severe braking most of the vehicle weight is transferred to the front and front brake does most of the braking. Rear wheels are left with little traction and in this high pressure condition rear wheels have tendency to skid. The LSPV valve is installed on the chassis and load sensing spring is connected to the rear axle at the other end. During heavy braking the valve limits the pressure to the rear wheels and this allows rear wheels to continue to rotate instead of locking and skidding. CONNECTION DETAILS 1 Front inlet port pipe 2 Rear outlet port pipe 3 Rear inlet port pipe 4 Bleed screw 5 Mounting holes 6 Control spring LOCATION The LSPV is mounted on the chassis at the rear half above the rear axle. It is fitted on the chassis with the help of two mounting bolts and at the other end of the adjusting spring is mounted on the rear axle. REMOVAL 1. Loosen and remove the mounting bolt and free the load sensing spring from the rear axle.
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