TOYOTA PREVIA 91-97 REPAIR MANUAL

9-22 BRAKES

INSPECTION

Front

» See Figure 84

Examine the disc. If it is worn, warped or scored, it must be rep

Check the thickness of the disc against the specifications given in

aced.
he Disc
and Pad Specifications chart. If it is below specifications, replace ilUse a
micrometer to measure the thickness.
The disc run-out should be measured before the disc is removgil and
again, after the disc is installed. Use a dial indicator mounted on a magnet
type stand (attached to the shock absorber shaft) to determine runtut. Posi-
tion the dial so the stylus is 0.39 inch (10mm) from the outer edge
rotor disc. The maximum allowable runout is 0.0028 inch (O.O/mni). If
runout exceeds the specification, replace the disc.

•"•Be sure that the wheel bearing nut is properly tightened,.If
not, an inaccurate run-out reading may be obtained. If different
out readings are obtained with the same disc, between remuval
installation, this is probably the cause.

Rear

Examine the disc. If it is worn, warped or scored, it must be rep aced
Check the thickness of the disc against the specifications given in he Disc
and Pad Specifications chart. If it is below specifications, replace i. Use a
micrometer to measure the thickness.
The disc run-out should be measured before the disc is removqtl and

DRUM BRAKES

of the

it is

run-

and

Fig. 84 Check the rotor for scoring

again, after the disc is installed. Use a dial indicator mounted on a magnet

type stand (attached to the shock absorber shaft) to determine runout. Posi-

tion the dial so the stylus is 0.39 inch (10mm) from the outer edge of the

rotor disc. The maximum allowable runout 0.0039 inch (0.10mm). If the

runout exceeds the specification, replace the disc.

** CAUTION

Older brake pads or shoes may contain asbestos, whicl

been determined to be cancer causing agent. Never

the brake surfaces with compressed air! Avoid inhaling

any dust from any brake surface! When cleaning brake

surfaces, use a commercially available brake cleaning

luid.

clean

has

Brake Drums

REMOVAL & INSTALLATION

> See Figures 85 and 86

1. Loosen the rear wheel lug nuts slightly. Release the parking
   brake.

Backing Plate

BlefderPlug

©». Adjuster

* C-Washer

Adjusting Shim

Parking Brake Shoe Lever

Automatic Adjusting Lever

Pin

4 Non-reusable part

•* Lithium Soap Base Glycol Grease

t£>High Temperature Grease

Fig. 85 View of the common rear brake drum and shoe coi

Adjusting Lever Spring

Adjuster

ponents