Fluid Pressure Test

FLUID PRESSURE TEST (IF EQUIPPED WITH LSPV)
Test procedure for LSPV assembly is as follows. Before testing, confirm the followings.
^ Fuel tank is filled with fuel fully.
^ Vehicle is equipped with spare tire, tools, jack and jack handle.








1. Stop vehicle on level floor and place approximately about 200 kg (441 lbs.) weight on rear housing so that rear axle weighs 800 kg (1764 lb.).
Rear axle weight "L" 800 kg (1764 lbs.)
2. Install special tool to front and rear brake.

NOTE: Special tool(s) should be connected to breather of front (driver's side brake) and rear brakes.

Special tool
(A): 09956-02310
(B): 09952-46510 (Attachment of thread diameter 8 mm of bleeder plug)
(C): 09952-36310 (Attachment for thread diameter 7 mm of bleeder plug)
(D): 55473-82030 (Air bleeder plug as a spare part)

NOTE:
^ For brake with bleeder plug (thread diameter: 10 mm), install special tool (A) (fluid pressure gauge).
^ For brake with bleeder plug (thread diameter: 8 mm), install special tool (A) (except attachment) and special tool (B) (attachment).
^ For brake with bleeder plug (thread diameter: 7 mm), install special tool (A) (except attachment) and special tool (C) (attachment).





3. Depress brake pedal gradually till fluid pressure of front brake becomes as specified and check corresponding pressure of rear brake then. It should be within specification given.





LSPV specification:

4. As done step 3), apply 100 kg/cm2 pressure to front brake and check that rear brake pressure then is within specification as given.





LSPV specification (applied 100 kg/cm2 pressure to front brake):








5. If rear brake pressure is not within specification, adjust it by changing stay (3) position as follows.
Tightening torque
LSPV stay bolt (a): 23 Nm (2.3 kg-m, 17.0 ft. lbs.)
^ If rear brake pressure is higher than specification, move stay to direction "a" and if it is lower, to direction "b".
^ Repeat steps 4) and 5) until rear brake pressure is within specification.
^ After adjustment, be sure to torque bolt to specification.





6. Disconnect brake pipe (connecting between master cylinder secondary side and 4-way joint) from master cylinder.
Tighten plug (special tool) to master cylinder.
Depress brake pedal. If rear brake pressure is 95 - 100 kg/ cm2 when front brake pressure is 100 kg/cm2, it means that the front fail-safe system functions properly.





LSPV specification (for fail-safe system function check):





Special tool
(A): 09956-02210
7. Upon completion of fluid pressure test, bleed brake system and perform brake test.