Komatsu 830E-AC Shop Manual page 636

BRAKE BLEEDING PROCEDURE
Attach brake lines and bleed brake calipers accord-
ing to the following instructions:
NOTE: Bleeder valves must be installed in the
locations shown in Figure 6-39.
1. Fill hydraulic tank following procedure in Sec-
tion P, Hydraulic Tank Service.
2. Close brake accumulator drain valves (7, Figure
6-38), if open.
3. Securely attach bleeder hose to highest bleeder
valve of each caliper, direct hose away from
brake assembly and into a container to catch
excess oil.
4. With engine at idle, make partial brake applica-
tion of service brake pedal:
J6-32
FIGURE 6-39. BLEEDER PLUG
1. Bleeder Plug 3. Bleeder Plug
2. Bleeder Plug 4. Bleeder Plug
Armature Speed Rear Disc Brakes
a. Maintaining partial application, open bleeder
valve until a clean stream of oil is discharged
from caliper. Use bleeder valves shown in
Figure 6-39.
b. Close bleeder valve.
5. Repeat above Steps until all air is bled from all
calipers.
6. Check hydraulic reservoir level as bleeding
takes place, maintain correct level.
7. Before returning truck to production, brake lin-
ing must be burnished.
All new brake linings must be burnished prior to
being put in service. Refer to Service Brake Con-
ditioning.
5. Bleeder Plug 7. Bleeder Plug
6. Bleeder Plug
10/06 J06025