
44
Pellerin Milnor Corporation
CAUTION:
Risk of malfunction —
Air in hydraulic fluid will compress. Compressed
air in the brake line will cause brake malfunctions.
�
Remove (bleed) air from the brake circuit before you operate the
machine.
Requirements—These personnel and items are necessary for this procedure:
•
Two technicians
•
An 8-ounce container of new brake fluid
•
Alternative procedures to remove air and used brake fluid:
–
a suction pump (faster procedure) (see
Figure 20: Pumps Used to Remove Hydraulic Fluid
)
–
with pressure in the hydraulic cylinder and gravity (see
Figure 21: Typical Tools to Re-
move Air (Bleed) Brakes and Used Hydraulic Fluid, page 45
TIP:
The Vacula suction pump can do the work more quickly than by gravity and pres-
sure in the hydraulic cylinder. It is also cleaner because all of the hydraulic fluid goes into
the container supplied. It helps you not spill the hydraulic fluid.
•
If you use a suction pump as shown in
, follow the manufacturer's instructions.
•
If you use the tools as shown in
, follow the instructions in
Hydraulic Fluid and Remove (Bleed) Air from the Brake Circuit , page 43
.
Figure 20.
Pumps Used to Remove Hydraulic Fluid Quickly
Alternative Pumps for Suction of Hydraulic Fluid
Legend
1. A manual suction pump
2. The Vacula suction pump uses compressed air and holds used hydraulic fluid.
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Страница 88: ...86 Pellerin Milnor Corporation Lower Disc Brake Installation 5 Sheets 6044SR2 6044SR3 7244SR2 Drive Assemblies ...
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