SHB WL34 * 2.0 8-25
Hydraulic system 8
Control valve
8.14 Control valve
Checking and adjusting working pressure
Preparing work
• Ensure the entire system is sealed
• Check all fluid levels
• Bring the machine to operating temperature (55°C, -5°C/+10°C)
Rated values
1. Insert the check gauge into the quick-change coupling.
2. Remove the cap of the control console on the outside –
see “Removing/installing filler cap for the control console” on
page 1-19.
3. Pull off the cap of the primary pressure relief valve 1 on the control
valve.
4. Applying full gas, drive the working hydraulics to the stop.
5. Set the working pressure using the adjusting screw.
➥ Loosen the screw = lower pressure
➥ Tighten the screw = higher pressure
Removing/installing the control valve
Preparing work
Tools:
• Suitable receptacle for collecting the hydraulic oil
• Plugs (different sizes) for closing the oil lines
Technical data
Use a suitable container to collect the hydraulic oil as it drains off and
dispose of it in an environmentally friendly manner!
Vehicle Operating pressure
Vehicles with control valve HDM 19/3 215 bar
Vehicles with control valve HDM 19/4 240 bar
Remark/designation Weight
V15 Control valve HDM19/4 20 kg
V22 Control valve HDM19/3 15 kg
Hydraulic system
Control valve
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