Hydraulic Brake Service Information; Hydraulic Brake Torque Values; Hydraulic Brake Specification - Honda TRX450R Service Manual

HYDRAULIC BRAKE
SERVICE INFORMATION
GENERAL
ACAUTION
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
• Avoid breathing dust particles.
• Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
NOTICE
- Spilled brake fluid will severely damage the plastic parts and painted surfaces. It is also harmful to some rubber parts.
Be careful whenever you remove the reservoir cap; make sure the reservoir is horizontal first.
• A contaminated brake disc or pad reduces stopping power. Discard contaminated pads and clean a contaminated disc
with a high quality brake degreasing agent.
• Never allow contaminants (e.g., dirt, water) to enter an open reservoir.
• Once the hydraulic system has been opened, or if the brake feels spongy, the system must be bled.
• Always use fresh DOT 4 brake fluid from a sealed container when servicing the system. Do not mix different types of
fluid as they may not be compatible.
• Always check brake operation before riding the vehicle.
SPECIFICATION
Unit: mm (in)
ITEM
Recommended brake fluid
Front brake
Rear brake
Disc thickness
Disc runout
Master cylinder I.D.
Caliper cylinder I.D.
Brake disc thickness
Brake disc runout
Master cylinder I.D.
Caliper cylinder I.D.
STANDARD
DOT 4 brake fluid
2.8-3.2(0.11-0.13)
-
12.7 (0.55)
25.4(1.00)
3.8-4.2(0.15-0.17)
-
12.7 (0.55)
32.0 (1.26)
SERVICE LIMIT
-
2.5(0.10)
0.30 (0.012)
-
-
3.5 (0.14)
0.30(0.012)
-
-
TORQUE VALUES
Brake caliper bleed valve
Front master cylinder reservoir cap screw
Rear brake reservoir mounting bolt
Front brake disc cover bolt
Front brake pad pin
Rear brake caliper pin bolt
Brake hose oil bolt
Front brake lever pivot bolt
Front brake lever pivot nut
Front brake light switch screw
Front brake caliper bracket mounting bolt
Rear brake reservoir hose joint screw
Rear master cylinder mounting bolt
Rear brake caliper mounting bolt
Parking brake base bolt
Brake pedal pivot bolt
6 N-m (0.6 kgf-m, 4.3 Ibf-ft)
2 N-m (0.2 kgfm, 1.4 Ibf-ft)
12 N-m (1.2 kgf-m, 9 Ibf ft)
12 N-m (1.2 kgf-m, 9 Ibf-ft)
18 N-m (1.8 kgf-m, 13 Ibf-ft)
23 N-m (2.3 kgf-m, 17 Ibf-ft)
34 N-m (3.5 kgf-m, 25 Ibf-ft)
1 N-m (0.1 kgf-m, 0.7 Ibf-ft)
6 N-m (0.6 kgf-m, 4.3 Ibf-ft)
1 N-m (0.1 kgf-m, 0.7 Ibf-ft)
30 N-m (3.1 kgf-m, 22 Ibf-ft)
2 N-m (0.2 kgf-m, 1.4 Ibf-ft)
12 N-m (1.2 kgf-m, 9 Ibf-ft)
30 N-m (3.1 kgf-m, 22 Ibf-ft)
23 N-m (2.3 kgf-m, 17 Ibf-ft)
26 N-m (2.7 kgf-m, 20 Ibf-ft)
ALOC bolt; replace with a new one.
ALOC bolt; replace with a new one.
Apply locking agent to the threads.
ALOC bolt; replace with a new one.
19-3