Elmo Rietschle L-BL2 - Manual (Page 28)

Servicing
610.44444.40.000 28 / 36 © Gardner Denver Deutschland GmbH
Contamination/Problem Remedy
Impeller of installed unit is
jammed. Free shaft by turning.
To do so, proceed as follows:
 Shut down system and secure against being switched on again.
 Remove cover plate (Item 064).
 Turn shaft of installed unit (Item D) by hand at fan impeller.
 If shaft cannot be freed by turning, installed unit must be decalcified.
Extremely hard water used
as operating liquid
Lime content > 15°dH). Soften operating liquid.
OR
Decalcify installed unit.
Decalcify installed unit (Item D) at regular intervals. (Intervals are depending
on calcification.)
To do so, proceed as follows:
 Wear personal protective equipment (protective gloves and safety
goggles),
 Shut down system and secure against being switched on again.
 Drain system as described in Chapter 8.1, "Draining", Pg. 23.
 Have the cover plate (Item 064) and protective grille (Item 058) removed
from the separator.
 Models 2BL2 041 - 2BL2 141:
Disconnect pipe/hose from screw-in connecting sleeve (Item H) of
installed unit.
Models 2BL2 251 - 2BL2 341:
Disconnect pipe/hose from condensation cooler (Item 031).
To remove the pipe/hose, open the clip with special pliers or a
screwdriver.
 Use
10 % ethanoic acid as antiliming liquid.
 WARNING: Danger from ethanoic acid! Ethanoic acid can cause heavy
acid burns! Observe applicable laws and regulations as well as accident
prevention regulations concerning hazardous substances and
manufacturer's safety data sheet!
 Fill interior of installed unit with antiliming liquid.
To do so, proceed as follows:
Pour antiliming liquid into the open screw-in connecting sleeve (Item H)
using a funnel or hose. (See Fig. 13, Pg. 24.)
Filling amount: see Chapter 3.1, "Mechanical data", Section "Filling
quantity for antiliming liquid", Pg. 8. The entire interior of the installed unit
must be filled with antiliming liquid.
CAUTION: Various system seals can be damaged by prolonged contact
to ethanoic acid. The ethanoic acid may only enter the interior of the
installed unit.