KM 255 en
36
15.720045-V1.0
Clean the valves.
•
At least every 12 months or after 4000 operating hours, or
•
if the pump isn’t performing, or
•
in the event of an error.
Clean the valves and replace if necessary (for stainless steel valves: inner parts of valve)
Change diaphragms and gear oil.
•
At least every 12 months or after 8000 operating hours, change the dosing medium
and gear oil,
•
in dusty installation site, change gear oil every 3000 operating hours.
Clean ball check of the double diaphragm
•
after a diaphragm breakage, remove the ball check immediately and clean it.
Note
Only clean the ball check after a diaphragm breakage!
9.4
Checking the oil level
Caution
Check the oil level at least every 2 weeks and add oil if necessary.
Note
The rod length of the oil level gauge is
9.5
Cleaning the suction and pressure valves
!
Warning
When working on the dosing head, connections or lines: Wear the necessary pro-
tective clothing (goggles, gloves)!
Before removing the dosing head, valves and media lines, empty any remaining
medium in the dosing head into a driptray by carefully unscrewing the suction
valve.
Nominal width DN 20
•
Screwed connection 1 1/4“
•
Stainless steel/plastic
•
optional spring-loaded
Nominal width DN 32 (for 60 Hz operation, suction side only), with adapter
•
Flange connection
•
Stainless steel/plastic
Clean suction and pressure valves as follows:
1. Unscrew valves.
2. Unscrew screw parts and valve set using round pliers.
3. Dismantle inner part (seat, O-ring, balls, ball cages, if necessary spring).
4. Clean all parts, replace any faulty parts.
5. Reassemble valve.
6. Replace O-rings with new ones and screw valve back in.
for KM 255
35 mm; immersion depth to marking approx. 5 mm.
Содержание KM 255
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