Removing The Hydraulic Unit; Checking The Hydraulic Unit - Yamaha FJR13AEV(C) Service Manual

ET3P61055

REMOVING THE HYDRAULIC UNIT

ECA14510
CAUTION:
Do not remove the hydraulic unit to check
the resistance of the solenoid valves and the
ABS motor for continuity.
EWA13930
WARNING
Refill with the same type of brake fluid that is
already in the system. Mixing fluids may re-
sult in a harmful chemical reaction, leading
to poor braking performance.
EC3P61010
CAUTION:
• Handle the ABS components with care,
since they have been accurately adjusted.
Keep them away from dirt and do not sub-
ject them to shocks.
• The wheel sensors cannot be disassem-
bled. Do not attempt to disassemble the
sensors. If faulty, replace with new sen-
sors.
• Do not turn the main switch to "ON" when
removing the hydraulic unit.
• Do not clean with compressed air.
• Do not reuse the brake fluid.
• Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
• Do not allow any brake fluid to contact the
couplers. Brake fluid may damage the cou-
plers and cause bad contacts.
• If the union bolts for the hydraulic unit have
been removed, be sure to tighten them to
the specified torque and bleed the brake
system.
1. Remove:
• Brake hose "1" (front brake master cylinder to
hydraulic unit)
• Brake hose "2" (rear brake master cylinder to
hydraulic unit)
ABS (ANTI-LOCK BRAKE SYSTEM)
• Brake hose "3" (hydraulic unit to front brake
calipers)
• Brake hose "4" (hydraulic unit to proportion-
ing valve)
• Brake hose "5" (hydraulic unit to metering
valve)
NOTE:
Do not operate the brake lever and brake pedal
while removing the brake hoses.
ECA14530
CAUTION:
When removing the brake hoses, cover the
area around the hydraulic unit to catch any
spilt brake fluid. Do not allow the brake fluid
to contact other parts.
1
2. Remove:
• Hydraulic unit "1"
NOTE:
To avoid brake fluid leakage and to prevent for-
eign materials from entering the hydraulic unit,
insert a rubber plug "a" or a bolt (M10 × 1.25) into
each union bolt hole.
1
ET3P61056

CHECKING THE HYDRAULIC UNIT

1. Check:
• Hydraulic unit "1"
Cracks/damage → Replace the hydraulic
unit.
4-58
2
3
4
5
a