Maintenance Table; Recommendations For The Replacement Of Wearing Parts; Repair Instructions - Ecolab DG 1-II Notice D'utilisation

8.2.1

Maintenance Table

Component/Maintenance Task
- Check Criterion-
Flow control device:
− Functional test
− Tightness of pressure control
valve
Checking the concentration setting:
Eccentric:
Functional test
Metering pump:
Leak test
Hydraulic motor:
Performance test
Backflow preventer:
Leak test of DB-type flow interrupter
Suction pipe:
Functional test
Suction pipe:
Leak test
Strainer: (Fig. 3.3, pos. 7)
One or more strainers soiled
Solenoid valve strainer
8.3

Recommendations for the replacement of wearing parts

Component
Solenoid valve:
Connectinghose/Water -separation & outlet
System separation (pipe interrupter DB)
8.4

Repair Instructions

Repair instructions including spare parts lists and exploded views you can get on request.
For any work on parts which come in contact with the product, the corresponding hazard
information and safety instructions must be observed at all times. Always wear suitable
protective equipment.
Before carrying out any repair work, make sure to disconnect the metering unit from the
CAUTION
mains. To do so, pull the mains plug out of the wall outlet.
Before performing any repair work on parts which come in contact with the product
and/or with water (e.g. solenoid valve), make sure that the angled valve is closed and that
the water pressure inside the unit is down. To do so, press the ON/OFF (I/0) switch twice.
Only original spare parts may be used!
ATTENTION
(see chapter
417101158_DG1.docx
Work Instructions/References
See chapter 6.2.4
If disinfectant is running from the flow control device, unscrew it from
the threaded union ⇒ replace flow control device
See chapter 6.2.1
To check the eccentric for correct operation, set the concentration to
three different values and gauge them by liters. In case of deviation,
replace eccentric, connecting rod, and – if necessary – complete
metering pump
With the unit running, watch for concentrate escaping at the piston rod.
If yes ⇒ replace piston and O-rings or replace the complete metering
pump, if necessary
With the unit switched on, grasp the eccentric. If it is possible to block
the hydraulic motor without applying force: Hydraulic motor defective
⇒ replace hydraulic motor
Replace rubber diaphragm or flow interrupter, if necessary
See chapter 6.2.3
Immerse suction pipe end and electrodes in a beaker filled with
disinfectant; if the metering pump sucks air, the suction pipe hose is
defective ⇒ replace hose or suction pipe, if necessary
Remove insets from the affected strainers and clean them. Remove
the coupling nut from the slanted-seat filter.
Exchange of the filter
Exchange of the diaphragm
1.3 „Scope of guarantee").
44
„Functional Check of the Flow Control Device"
„Checking the Concentration Setting"
„Functional Check of the Level Suction Pipe"
Work step Maintenance interval
annual
annual
every 3 years
Rev. 07-01.16