Page 1065 of 4500
Fig. 97: Removing Pistons Alternately From Disc Brake Cylinder Assy Rear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
11.REMOVE PISTON SEAL
a. Using a screwdriver, remove the 2 piston seals from the disc brake cylinder assy rear.
Page 1066 of 4500
Fig. 98: Removing Piston Seals From Disc Brake Cylinder Assy Rear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
12.REMOVE REAR DISC BRAKE BLEEDER PLUG
a. Remove the rear disc brake bleeder plug from the disc brake cylinder assy rear.
13.INSPECT DISC THICKNESS
a. Using a micrometer, measure the disc thickness.
Standard thickness: 16.0 mm (0.630 in.)
Minimum thickness: 14.5 mm (0.571 in.)
If the disc thickness is less than the minimum, replace the disc.
Page 1067 of 4500
Fig. 99: Measuring Disc Thickness
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14.REMOVE PARKING BRAKE SHOE ADJUSTING HOLE PLUG
a. Remove the parking brake shoe adjusting hole plug from the rear disc.
15.REMOVE REAR DISC
a. Put matchmarks on the rear disc and the axle hub.
Page 1068 of 4500
Fig. 100: Identifying Matchmarks On Rear Disc And Axle Hub
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Release the parking brake, and remove the rear disc.
HINT:
If the disc cannot be removed easil
y, turn the shoe adjuster until the wheel turns freely.
Page 1069 of 4500
Fig. 101: Turning Shoe Adjuster
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16.INSTALL REAR DISC
a. Aligning the matchmarks, install the rear disc.
HINT:
When replacing the rear disc with a new one, select the installation position where the rear disc has the
minimum runout.
17.INSTALL PARKING BRAKE SHOE ADJUSTING HOLE PLUG
a. Install the parking brake shoe adjusting hole plug to the rear disc.
18.INSPECT DISC RUNOUT
a. Tighten the disc with the 3 hub nuts.
HINT:
Use SST 09330-00021 to hold the disc during measurement.
Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf)
Page 1070 of 4500
Fig. 102: Tightening Disc With Hub Nuts
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b. Using a dial indicator, measure the disc runout 10 mm inside (0.39 in.) the outer edge of the disc.
Maximum disc runout: 0.05 mm (0.0020 in.)
c. If the runout exceeds the maximum value, change the installation positions of the disc and axle so
that the runout will become minimal. If the runout exceeds the maximum even when the installation
positions are changed, check the bearing play in the axial direction and the axle hub runout (see
ON
-VEHICLE INSPECTION ). If the bearing play and the axle hub runout are normal and if the
disc thickness is not within the specified range, shave the disc. If the disc thickness is less than the
minimum, replace the disc.
Page 1071 of 4500
Fig. 103: Measuring Disc Runout 10 mm Inside (0.39 In.) Outer Edge Of Disc
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
19.ADJUST PARKING BRAKE SHOE CLEARANCE (SEE OVERHAUL
)
20.TEMPORARILY TIGHTEN REAR DISC BRAKE BLEEDER PLUG
a. Temporarily install the rear disc brake bleeder plug to the disc brake cylinder assy rear.
21.INSTALL PISTON SEAL
a. Apply lithium soap base glycol grease to a new piston seal.
b. Install the piston seal to the disc brake cylinder assy rear.
22.INSTALL REAR DISC BRAKE PISTON
a. Apply lithium soap base glycol grease to the rear disc brake piston and a new cylinder boot.
b. Install the cylinder boot to the rear disc brake piston.
c. Install the rear disc brake piston to the disc brake cylinder assy rear.
23.INSTALL CYLINDER BOOT
a. Install the cylinder boot to the disc brake cylinder assy rear.
Page 1072 of 4500
24.INSTALL DISC BRAKE CYLINDER ASSY REAR LH
a. Install the disc brake cylinder assy rear with 2 new bolts.
Torque: 78 N.m (800 kgf.cm, 58 ft.lbf)
Fig. 104: Installing Disc Brake Cylinder Assy Rear With Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
25.CONNECT REAR LH FLEXIBLE HOSE