Operating instructions

ProMinent
®
Page 34
11.2 Hydraulic diaphragm liquid end (TZHa)
왘 Set stroke adjustment knob to 0 %
왘 Unfasten union nuts and/or flange on valves and detach lines
왘 Empty liquid end and rinse is necessary
왘 Place an oil trough underneath the liquid end and hydraulic end
왘 Drain out the hydraulic oil from the hydraulic end via the acrylic glass stopper (3) (see Fig.)
왘 Lightly screw in the acrylic glass stopper (3)
왘 Unscrew the orange cover from the diaphragm rupture warning system (see Fig.)
왘 Untighten the 6 nuts (1) on the liquid end (oil trough?)
왘 Carefully remove the liquid end from the stud bolts
NOTICE
Contaminants must never be allowed to enter the hydraulic end.
왘 Remove the diaphragm (3) (oil trough?)
왘 Clean the sealing surfaces on the liquid end and the hydraulic end (using a suitable cleaning
agent if necessary)
왘 Place the new diaphragm (3) with the light grey coating facing outwards onto the hydraulic
end
왘 Tighten the orange cover for the diaphragm rupture warning system until the diaphragm is
loosely held in position
왘 push the liquid end over the stud bolts onto the hydraulic end (is the cut-out on the side of
the liquid end located on the side of the diaphragm rupture warning system?)
왘 Check that the diaphragm contact is resting easily in the diaphragm rupture warning system
housing
왘 Tighten the 6 nuts (1) on the liquid end to 30 Nm (torque wrench! )
왘 Screw the orange cover onto the diaphragm rupture warning system
Repair
BA_MA_TZ_006_10_06_GB.p65 05.02.2007, 13:41 Uhr34