Metering Head And Diaphragm Replacement; Gear Oil Change - ECOLAB Elados EMP IV E60 serie Betriebsanleitung

11.2

Metering head and diaphragm replacement

If you plan to reuse valves, they should be initially dismantled as described in chapter
NOTE
"Replacing the suction / pressure valve".
Before replacing the diaphragm, set stroke length adjustment to less than 50 %!
 Loosen metering head screws (pos. 1) crosswise in three steps.
 Loosen each screw by ½ a turn, then loosen them in two steps according to the same
order by 1 turn each.
 Unscrew them completely; hold pressing plate (pos. 2) and metering head (pos. 3).
 Remove pressing plate (pos. 2) and metering head (pos. 3).
 Take the intermediate ring (pos. 5) in such a way that the thumb presses the delivery
diaphragm (pos. 4) against the intermediate ring, and unscrew the diaphragm with the
intermediate ring clockwise.
 In case of stiffness, insert two metering head screws, approx. 15 – 20 mm into the
intermediate ring in order to facilitate handling (see Fig 11.4 "!").
 Remove diaphragm, intermediate ring and protective diaphragm (pos. 6).
 Put on a new protective diaphragm and hold the intermediate ring against it.
 Screw-on the new delivery diaphragm clockwise and tighten it up manually. When doing
this, hold the intermediate ring in such a way that the thumb presses the delivery
diaphragm against the intermediate ring.
 Turn the intermediate ring clockwise until the outlet hole points downwards.
 Place new metering head and pressing plate, and fix them with metering head screws.
 Tighten metering head screws crosswise. Drive in each screw by proceeding in steps of
1 turn; final tightening torque: 12 Nm.
 Install valves in accordance with the description provided under chapter
the suction / pressure valve".
NOTE
WARNING
Check the torque of the metering head screws after 24 hours!
11.3

Gear oil change

The safety regulations of the German Water Resources Law (WHG), as well as all
CAUTION
instructions given in the product specification sheet of the gear oil have to be observed.
Wear appropriate protective clothing.
NOTE
417101799_EMP_IV_E60.docx
Torque of the metering head screws = 12 Nm.
Before changing the oil, the pump has to be put into operation in order to achieve a
minimum temperature of approx. 30°C.
Fig. 11.4 Metering head and diaphragm replacement
Pos. Description
1 Metering head screws
2 Pressing plate
3 Metering head
4 Delivery diaphragm
5
Intermediate ring
6
Protective diaphragm
Fig. 11.5 Gear Oil Change
Pos. Description
1 Gear vent screw
2 Oil-level gauge glass
3 Locking nut
- 114 -
11.1
11.1 "Replacing
Rev. 11-10.19