Suzuki WagonR+ RB310 Service Manual page 2275

5A-2 BRAKES PIPE / HOSE / MASTER CYLINDER
LSPV (Load Sensing Proportioning Valve) ASSEMBLY (if equipped)
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.
GENERAL DESCRIPTION
1. LSPV
2. LSPV lever
3. Spring
4. LSPV bracket
5. Brake flare nut