B95W
Maintenance
06_Wartung und Pflege_en.fm - V1.0 - 1.8.17
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6.7.10 Bleeding the plunger cylinders
Fig. 6-29 Bleeding the plunger cylinders
1 Bleeding screws
• Pressure supply is via the flushing oil circuit of the hydrostatic drive.
• Latching occurs by blocking the connection line between the plunger cylinders
by means of a locking valve, which is activated by the excavator brake or the
rocker switch “pendulum axle locking”.
• The axle may not oscillate with excavator brake engaged or toggle switch for
pendulum axle locking activated.
Bleeding
Secure the machine against rolling away
Release the parking brake.
Set the toggle switch for pendulum axle locking to “OFF”.
Allow the engine to run at medium speed.
Open the bleed screws (1) on plunger cylinder right and left one after another
until hydraulic oil emerges without bubbles.
Tighten the bleed screws.
Risk of injury as a result of hydraulic oil under pressure
Hydraulic oil can get into the skin and eyes and cause
serious injury. Hot hydraulic oil can cause burns.
Z Avoid skin contact with oil, grease, and hot machine parts.
Z Wear personal protective equipment.
Z Take the utmost precaution when working.
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