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BRAKES
35
G. CALIPER GREASING
Loosen and remove the sliding pin and grease
them with the special grease which is provided for
brakes
.
NOTE
Check the sliding pin boot for any cut or damages.
If any defect is found replace the boot.
H. DISC RUN-OUT MEASUREMENT
PROCEDURE
1. With the gear in neutral position, hoist the
vehicle on two post lift and remove the front
wheel. Tighten the wheel nuts on Brake disc
only.
2. Mount the magnetic dial stand at an
appropriate position such that the needle can
be placed perpendicular to the disc face.
3. Ensure that brake disc surface is clean and
dial indicator tip touching the brake disc on
circle at a distance of ≈ 130 mm from wheel
center.
4. Rotate the brake disc while watching the dial
indicator needle movement; record the
maximum value shown on the dial indicator.
The maximum value is the brake disc run out.
5. The brake disc runout should not be more than
0.060 mm (60 Microns).
NOTE
For further inspection and repairs refer the
BRAKE DISC REMOVAL in the next section.
DISC INSPECTION:
The disc should be free from score marks. If
scored, it should be ground and refitted. Do not
grind the disc more than 0.25mm per side. If the
total thickness of the disc after grinding is found to
be less than disc discard thickness of 20 mm, the
disc should be changed.
The disc thickness variation is to be checked by
measuring the thickness of the rotor at four or
more points around the circumference of the rotor.
All measurements must be made at the same
distance from the edge of the rotor.
After fitment, the face runout of the disc should be
less than 0.03 mm.