Checking The Rear Brake Hose Protectors; Bleeding The Hydraulic Brake System - Yamaha Grizzly550 User Manual

1
2. Check:
• Brake hose holders
Loose → Tighten the clamp bolt.
3. Apply the brake several times.
4. Check:
• Brake hoses
Brake fluid leakage → Replace any damaged
hose.
Refer to "REAR BRAKE" on page 4-32.
EAS28P1007
CHECKING THE REAR BRAKE HOSE
PROTECTORS
The following procedure applies to both of the
rear brake hose protectors.
1. Remove:
• Rear wheels
Refer to "REAR WHEELS" on page 4-18.
2. Check:
• Rear brake hose protector "1"
Wear indicator "a" becomes visible → Re-
place the rear brake hose protector.
Refer to "REAR KNUCKLES AND STABILIZ-
ER" on page 4-64.
TIP
Stones and mud thrown up by the wheels will
wear down the tops of the rear brake hose pro-
tectors.
A. Protector is normal.
B. Protector is worn.
3. Install:
1
• Rear wheels
Refer to "REAR WHEELS" on page 4-18.
EAS21350
BLEEDING THE HYDRAULIC BRAKE
SYSTEM
EWA13100
WARNING
Bleed the hydraulic brake system whenever:
• the system is disassembled.
• a brake hose is loosened, disconnected or
replaced.
• the brake fluid level is very low.
• brake operation is faulty.
TIP
• Be careful not to spill any brake fluid or allow
the brake master cylinder reservoir or brake
fluid reservoir to overflow.
• When bleeding the hydraulic brake system,
make sure there is always enough brake fluid
before applying the brake. Ignoring this pre-
caution could allow air to enter the hydraulic
brake system, considerably lengthening the
bleeding procedure.
• If bleeding is difficult, it may be necessary to let
the brake fluid settle for a few hours. Repeat
the bleeding procedure when the tiny bubbles
in the hose have disappeared.
1. Remove:
• Rear wheels
Refer to "REAR WHEELS" on page 4-18.
2. Bleed:
• Hydraulic brake system
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a. Fill the brake fluid reservoir to the proper level
with the recommended brake fluid.
b. Install the diaphragm (brake master cylinder
reservoir).
c. Connect a clear plastic hose "1" tightly to the
bleed screw "2".
3-23
M M MMM M M MMM M M MMM M
CHASSIS
M MMM M MMM