Checking The Hydraulic Unit Assembly - Yamaha 2012 TMAX XP500A Service Manual

EAS59C2401
REMOVING THE HYDRAULIC UNIT ASSEM-
BLY
ECA4B56013
Unless necessary, avoid removing and
installing the brake pipes of the hydraulic
unit assembly.
EWA13930
WARNING
Refill with the same type of brake fluid that
is already in the system. Mixing fluids may
result in a harmful chemical reaction, lead-
ing to poor braking performance.
ECA4B56014
• 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.
• Do not set the main switch to "ON" when
removing the hydraulic unit assembly.
• 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
couplers and cause bad contacts.
• If the brake hose flare nuts and union
bolts for the hydraulic unit assembly have
been removed, be sure to tighten them to
the specified torque and bleed the brake
system.
1. Remove:
• Brake hoses
• Rear brake pipe/joint assembly
TIP
Do not operate the brake levers while remov-
ing the brake hoses and rear brake pipe/joint
assembly.
ECA59C2412
When removing the brake hoses and rear
brake pipe/joint assembly, cover the area
around the hydraulic unit assembly to
catch any spilt brake fluid. Do not allow the
brake fluid to contact other parts.
ABS (ANTI-LOCK BRAKE SYSTEM)
2. Disconnect:
• ABS ECU coupler "1"
TIP
Pull up the coupler ejection slider to discon-
nect the ABS ECU coupler.
3. Remove:
• Hydraulic unit assembly "1"
TIP
To avoid brake fluid leakage and to prevent for-
eign materials from entering the hydraulic unit
assembly, insert a rubber plug "a" or a bolt
(M10 × 1.0) into each flare nut hole.
ECA17300
When using a bolt, do not tighten the bolt
until the bolt head touches the hydraulic
unit. Otherwise, the brake pipe seating sur-
face could be deformed.
EAS59C2402
CHECKING THE HYDRAULIC UNIT ASSEM-
BLY
1. Check:
• Hydraulic unit assembly
Cracks/damage → Replace the hydraulic
unit assembly and the brake pipes that
are connected to the assembly as a set.
4-70