Kärcher SB MU, Original Instructions Manual

Page: 49 / 276

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12
 Before the onset of the frost period,
maintenance tasks must be carried out
"every year before the onset of the forst
period" according to section "Mainte-
nance and Care".  Carry out the following tasks for keep-
ing the frost protection intact.
NOTICE
Maintenance not being done on time or
from experts will mean, that there is no
guarantee concerning frost damage.
1 Filter for frost-protection pump
 Turn the main switch to position "0"
 Turn the main switch to position "1".
 Lock the operating time at the control.
If the equipment is to be shut down, and
there is not danger of frost,
 disconnect the water input,
 disconnect the power supply.
The following measures must be performed
if the machine room is not kept frost-free.
 Screw off water supply hose and high
pressure hose.
 Remove the RO membrane and store it
under anti-freezing conditions.
 Empty all swimmer containers; unscrew
the hoses and let the water drain off.
 Empty the permeate buffer tank.
 Disconnect the water pipe between
base exchanger and swimmer tank for
warm water.
 Rinse the plant (without base exchang-
er) with an anti-frost solution.
 Rinse the base exchanger with concen-
trated salt solution.
 Blow out all water-carrying parts with
oil-free compressed air.
NOTICE
Decommission the heater provided by the
customer in accordance with the separate
operating instructions of the heater.
NOTICE
All parts of the plant except the base ex-
changer must be rinsed with anti-frost solu-
tion during longer operational breaks to
prevent the system against corrosion.
In case of doubt, call Customer Service to
carry out the shutdown operations.
Maintenance jobs before and during the frost period
Time Activity Assembly affected Performance By whom
many times
daily opinion Washing brush Check for dirt and ice formation; lock foam wash if needed. Operator
daily opinion Heated foam hoses Are the hoses warm? Operator
weekly opinion Filter for frost-protection
pump Check filter for soiling and reinsert Operator
monthly Clean the
filter Filter for frost-protection
pump Clean the filter and replace Operator
monthly or af-
ter 200 operat-
ing hours;
more frequent-
ly if needed opinion Quantity of frost water pro-
tection in the frost protec-
tion circuit Target value: approx. 0.5 l/min per washing tool
Water quantity is higher: Change the node piece in the hand-spray
gun.
몇 WARNING
Risk of injury and damage. If the frost protection water volume is big-
ger than the admissible value, the cleaning tool may move uncontrol-
lably due to the exiting water stream. If the frost protection water vol-
ume is too big, replace the union piece in the trigger gun by all
means.
Water quantity smaller: Clean the filter of the anti-freeze pump, clean
sieve in the orifice plate (see "Maintenance work"), flush line, check
direction of rotation of the pump.
Operator
Shutting down
Shutdown during Frost Conditions
Shutdown
Shutdown during frost period
49 EN