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Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1186
POWER-ASSISTED BRAKE SYSTEM
5C–11
NOTE: Do not allow the fluid level in the reservoir to go
below the half–way mark.
12. Reconnect the brake pipe (1) to the master cylinder
and tighten the pipe.
13. Depress the brake pedal slowly once and hold it
depressed.
14. Loosen the rear wheel brake pipe (1) at the master
cylinder.
15. Retighten the brake pipe, then release the brake
pedal slowly.
16. Repeat steps 13 through 15 until no air comes out of
the port when the brake pipe is loosened
NOTE: Be very careful not to allow the brake fluid to
come in contact with painted surfaces.
330R200004
17. Bleed the air from the front wheel brake pipe
connection (2) by repeating steps 7 through 16.
Bleeding the Caliper
18. Bleed the air from each wheel in the order listed
below:
• Right rear caliper or wheel cylinder
• Left rear caliper or wheel cylinder
• Right front caliper
• Left front caliper
Conduct air bleeding from the wheels in the above
order. If no brake fluid comes out, it suggests that air
is mixed in the master cylinder. In this case, bleed
air from the master cylinder. In this case, bleed air
from the master cylinder in accordance with steps 7
through 17, and then bleed air from the caliper or
wheel cylinder.
19. Place the proper size box end wrench over the
bleeder screw.
20. Cover the bleeder screw with a transparent tube,
and submerge the free end of the transparent tube
in a transparent container containing brake fluid.
21. Pump the brake pedal slowly three (3) times (once/
sec), then hold it depressed.
22. Loosen the bleeder screw until fluid flows through
the tube.
23. Retighten the bleeder screw.
24. Release the brake pedal slowly.
25. Repeat steps 21 through 24 until the air is
completely removed.
It may be necessary to repeat the bleeding
procedure 10 or more times for front wheels and 15
or more times for rear wheels.
26. Go to the next wheel in the sequence after each
wheel is bled.
Be sure to monitor reservoir fluid level.
27. Depress the brake pedal to check if you feel
“sponginess” after the air has been removed from all
wheel cylinders and calipers.
If the pedal feels“spongy”, the entire bleeding
procedure must be repeated.
28. After the bleeding operation is completed on the
each individual wheel, check the level of the brake
fluid in the reservoir and replenish up to the “MAX”
level as necessary.
29. Attach the reservoir cap.
If the diaphragm inside the cap is deformed, reform
it and install.
30. Stop the engine.
Flushing Brake Hydraulic System
It is recommended that the entire hydraulic system be
thoroughly flushed with clean brake fluid whenever new
parts are installed in the hydraulic system.
Approximately one quart of fluid is required to flush the
hydraulic system.
The system must be flushed if there is any doubt as to
the grade of fluid in the system or if fluid has been used
which contains the slightest trace of mineral oil. All
rubber parts that have been subjected to a
contaminated fluid must be replaced.
Brake Pipes and Hoses
The hydraulic brake system components are
interconnected by special steel piping and flexible
hoses. Flexible hoses are used between the frame and
the front calipers, the frame and rear axle case and the
rear axle and the rear calipers.
When the hydraulic pipes have been disconnected for
any reason, the brake system must be bled after
reconnecting the pipe. Refer to Bleeding the Brake
Hydraulic System in this section.