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12
MAINTENANCE
4. Vacuumize and refi ll front right brake hose
Refer to the procedures of vacuumizing front left brake
hose to vacuumize and refi ll front right brake hose.
5. Vacuumize and refi ll front brake hose
◆
Open distribution valve dust cap and counter
clockwise open air inlet bolts of distribution valve.
.
◆
Connect one end of vacuum tank to air source and
the other end hose to air outlet.
◆
Counter clockwise rotate air valve hand shank to
open vacuum tank. Vacuumize pipelines of front
left and front right brakes respectively. Meanwhile,
check liquid level of rear brake cup and hand brake
main pump oil cup and refi ll in time. Refi ll only when
level is lower than MIN.
◆
In the vacuum process of all pipelines, refi ll oil cup
twice at least each time and screw up air nozzle
clockwise and then rotate vacuum tank air valve to
close it.
Torque of Air Outlet
7.9N·m
（
0.8kgf·m
，
94.8in·lb
）
TIPS
Check liquid level in the brake oil cup regularly
Check liquid level in the brake oil cup regularly
and refi ll.
Discharge air in the brake system
Discharge air in the pipeline when you replace or
reassemble brake parts
◆
Remove hand brake upper pump assembly oil cup
!
WARNING
Step on brake pedal
【
A
】
and hand grasp front brake
and hand grasp front brake
shank
【
B
】
respectively. If you have soft or “sponge”
respectively. If you have soft or “sponge”
feeling, in this process, it means there is air in the brake
feeling, in this process, it means there is air in the brake
system. Please repeat above procedures to vacuumize
system. Please repeat above procedures to vacuumize
(discharge air) the pipeline until you have no such
(discharge air) the pipeline until you have no such
feeling.
B
A
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