Toyota T100 1996 Service Manual page 1688

1996 TOYOTA T100 (RM449U)
BRAKE − LOAD SENSING PROPORTIONING AND BY−PASS
VALVE (LSP & BV)
4. IF NECESSARY, ADJUST FLUID PRESSURE
(a) Loosen the lock nut.
(b) Adjust the length of the No.2 shackle.
Low pressure: Lengthen A
High pressure: Shorten A
Initial set: 120 mm (4.72 in.)
Adjustment range: 114 − 126 mm (4.49 − 4.96 in.)
HINT:
One turn of the nut changes the fluid pressure as shown in the
BR3278
following specification.
7.5 kPa (0.77 kgf/cm, 11 psi)
(c) Torque the lock nut.
Torque: 25 N·m (250 kgf·cm, 18 ft·lbf)
(d) If the pressure cannot be adjusted by the No.2 shackle,
raise or lower the valve body. (2WD shown, for 4WD refer
to component illustration on next page.)
Low pressure−Lower body
High pressure−Raise body
(e) Torque the nuts.
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(f) Adjust the length of the No.2 shackle again.
If it cannot be adjusted, inspect the valve housing.
R09580
5. IF NECESSARY, CHECK VALVE BODY
(a) Assemble the valve body in the uppermost position.
HINT:
When the brakes are applied, the piston will move down about
0.8 mm (0.03 in.). Even at this time, the piston should not make
contact with or move the load sensing spring.
Z11334
(b) In this position, check the rear brake pressure.
Front brake pressure
kPa (kgf/cm
1,960 (20, 285)
3,920 (40, 570)
6,860 (70, 997.5)
If the measured value is not within the standard, replace the
valve body.
Z03643
2
, psi)
2,352 ± 196 (24 ± 2, 342 ± 28.5)
2,940 ± 343 (30 ± 3.5, 427.5 ± 50)
Author : Date :
BR−51
Rear brake pressure
2
kPa (kgf/cm , psi)
1,960 (20, 285)
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