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7.10-00110b_en
Maintenance
Approx.oilllquantities:
THZ 375 / 500 18 litres
THZ 750 20 litres
THZ 1125 21 litres
10�2�3 Checking the discharge opening pressure
● If necessary, screw a pressure gauge (G ¼") into the baseplate (5) of the
directional valve (4).
● With the mixer running, manually move the discharge slide by pressing in the control
piston valve (3) to the right or left up to the stop.
● Read the pressure: Setting pressure value: 100 bar (max. 125 bar)
10�2�4 Pressure regulation (if required)
● Remove the plastic cap from the pressure relief valve (6).
● Undo the hexagonal lock nut (under the cap).
● Turn the adjustment screw with a screwdriver
(to the right "+" = pressure increase, to the left "-" = pressure reduction)
until the setting pressure is reached.
● Tighten the lock nut.
● Replace the cap.
Fig. 59: Discharge hydraulic pressure adjustment
1 Solenoid coils for directional control valve
2 Directional control valve
3 Baseplate
4 Pressure relief valve with cover cap