Operating manual High-pressure double diaphragm pumps Cobra 40-10; Cobra 40-25
8 Cleaning and Maintenance
Order number 2340851 | Edition 05/2022
41
8 CLEANING AND MAINTENANCE
8.1 CLEANING
8.1.1 Cleaning Personnel
Cleaning work should be undertaken regularly and carefully by qualified and trained
personnel. They should be informed of specific hazards during their training.
The following hazards may arise during cleaning work:
– risk to health from inhaling solvent vapors,
– use of unsuitable cleaning tools and aids.
8.1.2 Decommissioning and Cleaning
The device must be cleaned to change products and for maintenance purposes. Ensure that
no remaining product dries on and sticks to the device.
WARNING
Brittle pressure regulator with filter!
The tank on the pressure regulator with filter becomes brittle through contact with
solvents and can burst. Flying parts can cause injury.
4
Do not clean the tank on the pressure regulator with filter using solvent.
1. Interrupt the work sequence in accordance with Chapter Pressure Relief / Work
38].
2. Carry out basic flushing in accordance with Chapter Basic Flushing [
3. Empty system in a controlled manner according to Chapter Emptying Pump [
4. Service spray gun in accordance to its operating manual.
5. Clean and check the suction system and the suction filter.
6. Remove product filter (option): check and clean or replace filter insert and filter housing
in accordance with chapter Cleaning and Replacing the Filter [
7. Clean the outside of the system.
8. Fully assemble the system.
9. Fill the system with flushing agent in accordance with Chapter Filling the Empty Pump
45].
8.1.3 Storing for Longer Periods of Time
If storing the system for a prolonged period of time, thorough cleaning and corrosion
protection are necessary. Replace the water or respective solvent in the product pump with
a suitable preserving agent.
1. Carry out decommissioning and cleaning (first until second to last step) in accordance
with Chapter Decommissioning and Cleaning [
2. Fill the system with preservation agent in accordance with Chapter Filling the Empty
3. Empty the system in a controlled manner in accordance with Chapter Emptying Pump
44] and seal the openings.