7.2.2 Checking the hydraulic uid level
DAMAGE
Material damage due to operation without hydraulic uid
If the hydraulic uid level falls below the minimum level, the operating temperature may rise, the
hydraulic pumps may suck in air and the hydraulic pump may fail due to cavitation.
►
During initial commissioning and after each opening of the hydraulic system
►
Fluid level too low: top up hydraulic uid.
1. Check the uid level in the tank.
If the installation position is horizontal, read off the maximum permissible level of the hydraulic
uid from the oil level gauge.
If the installation position is vertical, determine the maximum permissible level of the hydraulic
uid using a dipstick.
2. Fluid level too low: top up hydraulic uid.
CAUTION
Overpressure in the tank due to an excessive lling quantity
If too much hydraulic uid is lled into the tank, overpressure occurs. The tank container can burst and
the escaping hydraulic uid may cause serious injuries.
►
Do not exceed the maximum usable tank volume.
►
Wear protective clothing.
Fill volume
of hydraulic uid
Coding
Fill volume (l)
Usable volume (l)
1
0.370
0.300
2
0.560
0.450
3
0.750
0.600
7.2.3 Replacing the hydraulic uid
The hydraulic system is switched off and secured against unintentional restart.
The system is pressureless.
The work environment is clean.
1. Wait until the system has cooled down.
2. Place a suitable receptacle under the hydraulic power pack.
3. Open the tank lling screw.
4. Tilt the hydraulic power pack so that the hydraulic uid can completely ow out of the tank into the
receptacle.
5. Filter fresh hydraulic uid (Titan CHF 11S or Titan CHF 202). Recommended lter: 10 µm.
6. Turn the hydraulic power pack so that the tank points upwards.
7. Pour the ltered hydraulic uid into the tank.
Maximum permissible quantity (
see Chapter 10.1, "Technical data"
) can be read from the oil
level gauge if the installation position is horizontal. Use a dipstick if the installation position is
vertical.
8. Gently shake the hydraulic power pack so that the air bubbles pass into the tank.
✓
Wait a few hours until all the air bubbles are in the tank.
20/27
B 8543 - 10-2021 - 1.0
HAWE Hydraulik SE
