X-90 (2WD) L4-1591cc 1.6L SOHC MFI (1997)
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Load Compensator: Description and Operation
2-Door Vehicle Without ABS
GENERAL DESCRIPTION
As shown in figure below, LSPV is included within the brake circuit which connects the master cylinder and the rear wheel brake. It controls the
hydraulic pressure applied to the rear wheel brake according to the loaded state of the vehicle (or weight of the load), whereby preventing the rear
wheels from getting locked prematurely.
Also, it releases the above described control over the hydraulic pressure applied to the rear wheel brake, should any failure occur in the hydraulic
circuit of the front wheel brake so that the hydraulic pressure produced in the master cylinder is applied to the rear wheel brake directly to overate it.
CONSTRUCTION
The LSPV components are grouped into three sections as follows.
"A": Sensor section:
The main parts in this section are a lever and a spring affected by the loaded condition and converts it into the load.
"B": Hydraulic pressure control section:
Included in this section are a stepped plunger and valve mechanism to execute proportional control.
"C": Fail-safe section:
The main parts in this section are a chamber which draws in the hydraulic pressure from the front wheel brake system and a fail-safe piston which
releases the valve mechanism in the control section connected to the rear wheel brake, should any failure occur in the front wheel brake system.
