Hydraulic connections
Warning:
Do not apply the working pressure to the case drain line port (C, C1 or C2).
This can break the motor.
Before you make any hydraulic connections to the motor, examine the motor product
datasheet for the correct hydraulic connections.
Air bleeding procedure
1
2
Air bleeding procedure is carried out to fill the motor case completely with hydraulic
fluid. Air is removed from the motor case with the air bleed screws as follows:
• Locate the air bleed screws on the hub cover (1) or rear cover (2). Turn the motor
to a position in which the bleed screw is at its topmost position.
• Make sure the drain line of the motor is connected.
• Feed hydraulic fluid into the motor with low pressure throughout the procedure
(with system charge pressure or flow through the case drain line).
• Unscrew the air bleed screw by half a turn and wait for the air to bleed out.
• Close the screw when only hydraulic fluid is pouring through it.
Note:
If charge pressure is not available (open loop) or return flow through drain
line is prevented, fill the case manually by pouring oil in through the bleed
screw hole.
Commissioning procedure
Ensure that the following things are in order before starting a new or replaced motor:
• The hydraulic circuit of the motor is flushed.
• Motor is installed appropriately.
• Air bleeding procedure is carried out.
• The reservoir of the hydraulic system is full.
During the initial stages of use, also take the following things into consideration:
• At the initial startup, start the motor without a load.
• Do not run the motor immediately with full power. Increase the load and speed of
rotation gradually.
6.4
6.5
6.6
Installation Instructions
Product Manual
65
Содержание BB 4
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