Removing The Hydraulic Unit; Checking The Hydraulic Unit - Yamaha 2007 XP500 Service Manual

EAS22770

REMOVING THE HYDRAULIC UNIT

ECA15B1020
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.
ECA14520
CAUTION:
Handle the ABS components with care
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since they have been accurately adjusted.
Keep them away from dirt and do not sub-
ject them to shocks.
The ABS wheel sensor cannot be disas-
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sembled. Do not attempt to disassemble it.
If faulty, replace with a new one.
Do not turn the main switch to "ON" when
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removing the hydraulic unit.
Do not clean with compressed air.
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Do not use reuse the brake fluid.
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Brake fluid may damage painted surfaces
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and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
Do not allow any brake fluid to contact the
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couplers. Brake fluid may damage the cou-
plers and cause bad contacts.
If the union bolts for the hydraulic unit have
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been removed, be sure to tighten them to
the specified torque and bleed the brake
system.
1. Remove:
Brake hose "1" (from the front brake master
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cylinder)
Brake hose "2" (to the front brake caliper)
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Brake hose "3" (from the rear brake master
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cylinder)
ABS (Anti-Lock Brake System)
Brake hose "4" (to the rear brake caliper)
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3
NOTE:
Do not operate the brake lever 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.
2. Remove:
Hydraulic unit "1"
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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.
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EAS22770b

CHECKING THE HYDRAULIC UNIT

1. Check:
Hydraulic unit "1"
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Cracks/damage → Replace the hydraulic
unit.
4-48
4
2
1
a