Suzuki sq-416-420-625 Service Manual page 317

5B-4 FRONT BRAKE
Brake Disc
Before this inspection, brake pads must be removed.
Check disc surface for scratches in wearing parts. Scratches on
disc surface noticed at the time of specified inspection or replace-
ment are normal and disc is not defective unless they are serious.
But when there are deep scratches or scratches all over disc sur-
face, replace it. When only one side is scratched, polish and correct
that side.
Disc thickness "a"
Standard: 22 mm (0.866 in.)
Service limit: 20 mm (0.787 in.)
Use wheel nuts and suitable plain washers to hold the disc securely
against the hub, then mount a dial indicator as shown and measure
the runout at 25 mm (0.98 in.) from the outer edge of the disc.
Limit on disc deflection: 0.15 mm (0.006 in.)
NOTE:
Check front wheel bearing for looseness before measure-
ment.
1. Wheel nut
2. Washer
(or spacer)
Cylinder Slide Guide Pin/Pin Bolt
Check guide pin for smooth movement as shown.
If it is found faulty, correct or replace. Apply rubber grease to guide
pin outer surface. Rubber grease should be the on whose viscosity
is less affected by such low temperature a –40_C (–40_F).
Dust Boot
Check boot for breakage, crack and damage. If defective, replace.
"A": Apply grease
. . . . .
17 mm (0.670 in.) . . . . .
15 mm (0.590 in.)
For SUMITOMO ELECTRIC
brake caliper
For TOKICO brake caliper
. . For SUMITOMO ELECTRIC
brake caliper
. . For TOKICO brake caliper