Suzuki WagonR+ RB310 Service Manual page 1275

5B-4 FRONT BRAKE
Brake Disc
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 cor-
rect that side.
Disc thickness "a"
Standard : 17.0 mm (0.67 in.)
Service limit : 15.0 mm (0.59 in.)
Use wheel nuts (1) and suitable plain washers (2) to hold the disc
securely against the hub, then mount a dial indicator as shown
and measure the runout at 20 mm (0.79 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.
Cylinder Slide Guiding and Locking Pins
Check guiding pin (1) and locking pin (2) for smooth movement as
shown.
If it is found faulty, correct or replace. Apply rubber grease to guid-
ing and locking pins outer surface. Rubber grease should be the
on whose viscosity is less affected by such low temperature a –
40°C (–40°F).
"A" : Rubber grease
Locking pin (2) has grooves and O-ring but guiding pin (1) has no
groove. Install guiding pin into pin hole of carrier upper side.
Dust Boot
Check boot (3) for breakage, crack and damage. If defective,
replace.