8-S17
ME8200, ME9000, WSM
HYDRAULIC SYSTEM
Bleeding Brake System
• While bleeding, make sure to keep enough brake oil in the
brake oil reservoir.
1. Disconnect the brake pipes (1) from the master cylinder.
2. Move the brake pedal up and down by hand. At this time, when
raising the pedal, close the master cylinder outlet by a finger, and
when lowering, release the finger.
Repeat this operation several times. (Prepare and oil can.)
3. After bleeding the master cylinder, install the front brake pipes.
4. After installing the vinyl pipe (4) to the bleeder (2), (3), loosen the
bleeder two turns.
5. Move the brake pedal up and down.
Repeat this motion until air bubble in brake oil disappears.
After bleeding, tighten the bleeders firmly.
(Reference : Importance of Bleeding)
• If the air mixes in the brake hydraulic circuit, poor or no braking
force is obtained due to compress the air even when the brake
pedal is pressed.
Accordingly whenever the hydraulic brake system is
disassembled, be sure to bleed after reassembling.
W1018036
(4) Trailer Brake Valve
Checking Brake Pressure
1. Remove the trailer brake coupler, and set the trailer brake
adaptor (3), joint (Code No. 07616-50401), cable (Code No.
07916-50331) and pressure gauge (1) (Code No. 07916-50321).
2. Interlock the left and right pedals.
3. Start the engine and fully depress the brake pedal to measure the
braking pressure.
4. If the measurement is not within the factory specifications, check
the pilot pipe (4) and braking system.
(Reference)
Condition
• Oil temperature ...... 45 to 55 °C
113 to 131 °F
W1018536
Tightening torque Brake pipe nut
16 to 24 N·m
1.63 to 2.45 kgf·m
11.8 to 17.7 lbf·ft
(1) Brake Pipe
(2) Bleeder (on Brake Case)
(3) Bleeder (on Trailer Brake Valve)
(4) Vinyl Pipe
Braking pressure Reference value
9.8 to 12.7 MPa
100 to 130 kgf/cm
2
1422 to 1849 psi
(1) Pressure Gauge
(2) Cable
(3) Trailer Brake Adaptor
(4) Pilot Pipe
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