WARNING
Risk of injury from pressurised bleeder screw
Risk of serious injury or death
►
Depressurise the hydraulic power pack before bleeding.
DAMAGE
The hydraulic system is bled using bleeder screws.
Bleed the system through a consumer that has a high point within the hydraulic system.
Starting and bleeding
On the hydraulic power pack
The directional valve is in the switching position in which the pump can idle (see manufacturer’s
hydraulics schematic).
1. Slightly unscrew the bleeder screw.
2. Switch the pump on and off several times so that the pump cylinders bleed automatically.
Optional procedure if the controller lacks the requisite capability
3. Connect a pipe screw connection with a short pipe bracket and a transparent plastic hose to port P.
4. Insert the other end into the hydraulic uid ller opening.
✓
The bleeding process is complete when hydraulic uid ows out without bubbles.
5. Then move the consumer(s) back and forth several times until the air is largely removed and the
movement is smooth.
6. Tighten the bleeder screw again.
On a consumer in a high position
1. Slightly unscrew the bleeder screw.
✓
The bleeding process is complete when hydraulic uid ows out without bubbles.
2. Tighten the bleeder screw again.
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B 8010 - 04-2021 - 1.0
HAWE Hydraulik SE
