How does a brake load sensing valve work?
A load sensing valve is found on a braking system of a car or a truck. It detects ,by way of a connecting rod; the weight or downward movement of a vehicle caused by a heavy load and allows more brake fluid/air/pressure to be applied to the rear brakes. As a vehicle moves forward, the front brakes do most of the work.
Can you adjust a proportioning valve?
Most adjustable brake proportioning valves are very simple devices designed to fit between the master cylinder and the rear brake line. The valve offers a range of adjustment that decreases master-cylinder pressure down to a preset minimum.
Why are my brakes bleeding on my Toyota LSPV?
Once you have the brakes bled/sorted out you want to start with the valve as high as it will go and see how your rear brakes feel. You may need to adjust it down some, every truck is different. But starting at the very bottom will probably cause early rear brake engagement.
Where is the brake proportioning valve located on a Toyota?
The brake proportioning valve is located in the brake system for the rear wheels. It functions to control the brake fluid pressure from the master cylinder in response to the vehicle load. It limits the pressure sent to the rear brakes and prevents early locking of the rear wheels.
Can a LSPV control the front brake pressure?
The LSPV doesn’t control front brake pressure, just rear brake engagement time and pressure. Once you have the brakes bled/sorted out you want to start with the valve as high as it will go and see how your rear brakes feel. You may need to adjust it down some, every truck is different.
How to set the LSPV on a Toyota?
Install the LSPV to the frame. Tightening torque: Connect the brake tube to the LSPV with SST. Assemble the No. 2 shackle to the No. 1 shackle and set the length of the No. 2 shackle. Connect the No. 2 shackle to the bracket. Bleed the brake line. (Refer to AIR BLEEDING See Fig. 9-11 to 9-14). Set the LSPV body in the following procedure.