Boiler Cleaning - Kruger KGVG3200 PLUS Instruction Manual

BRUSHES
small spaces. Choose the nylon or brass type
according to the surface to be treated.
MANTAINANCE
* Always remove the plug before
cleaning or carrying out operations
on the machine.
For the safety of the operator and to ensure an always
perfect performance, we recommend the following
checks and maintenance:
AFTER EVERY USE:
For a correct cleaning, it is advice to clean the machine
and its accessories with a clean cloth moistened only
with a few drops of water. Do not use alcohol or other
solvents, they may damage the plastics and
components.
To maintain efficient and easy to couple the
accessories, check the O-ring seal (steam sealing
gaskets) and possibly wet them with a little silicone
grease.
PERIODICALLY:
Periodically check that the power cord does not show
signs of wear or aging. If it is damaged, it is absolutely
necessary to get it replaced by specialized personnel
before being able to re-use the appliance again.

BOILER CLEANING

Clean the boiler in our authorized centers once a year.
RINSE: It's recommended at least every 50 hours of
operation or 4 months.
a) DISCHARGE: The machine must be cold or definitely
discharged from the steam pressure and the plug
disconnected. Open it by pulling the rubber cap placed
under the machine in correspondence of the boiler (see
image below) and with an allen wrench 6mm open the
drain plug, shake slightly the machine to let the water
and the completely dissolved limestone out.
When the boiler is empty, clean and close carefully the
cap tightening it with the wrench.
b) FILLING: Fill the water tank (3), turn the machine on
and make it start again, waiting for the boiler to be re-
charged again.(att: Att: it may be that during the first
charge cycle, the "end of water" light turns on and you
need to shut down/restart the machine to complete the
load)
These brushes are
to use with the
accessory STEAM
LANCE. They are
used to remove
resistant dirt and for
deep cleaning, even
in the corners or
14
BOILER CLEANING:
The boiler cleaning is recommended at least every
100 hours of operation or 8 months.
After having necessarily made the boiler exhaust (see
paragraph RINSE in step a), ensure that the water
level in the plastic refill tank (3) is at least up to the
middle. Shake the machine well and then turn it
upside down to discharge any residual deposits in the
tank.
Dissolve in 1 liter of water about 15% of citric acid (if
in powder or granules, 150g of citric acid dissolved for
each liter of water).
(Alternatively, it is possible to use 0,3 liter of water
with 0,7liter vinegar).
Insert the prepared liquid in the refill tank of the
machine. (3).
Connect the power plug, turn on the main switch.
Wait for the pump to finish filling the boiler. (Att: it may
be that during the first charge cycle, the "end of water"
light turns on and you need to shut down/restart the
machine to complete the load).
When fully charged, turn off the main switch, unplug
the power plug and let the machine to rest for 6-7
hours.
(Att: do not let inside the solution over the indicated
time period to avoid damaging the steel of the boiler)
With the machine cold, shake it well and then open
the drain plug, now empty well all the limestone
dissolved in the solution, rinse it again entering from
the drain hole a couple of glasses of clean water.
Now clean and close the drain plug carefully.
* Fill the charging tank (see Preface) with clean water
and turn on the machine. Wait for it to charge and
heat.
Now, for about 10 minutes the steam supply will smell
of lemon given by the washing performed.
When the boiler cleaning is finished, restart the
machine, following the instructions in "Start to use".
► * after the cleaning operations of the boiler, it is
advisable to check if the caps under the machine leak,
in this case check their closure with a wrench or
replace the seal after the machine cools down.
"SEr" WARNING:
When the machine reaches 300 liters of water
consumed, it will show on the display for 10 seconds
the word "SEr" accompanied acoustically by 3 initial
beeps and 3 final beeps. At this point the writing
disappears and it will be possible to continue working.
This message with the "3 beeps – SEr - 3 beeps" warns
of the need to discharge the boiler, to let the
accumulated lime deposits escape.
The warning will be repeated at each power-up as long
as maintenance is not performed and afterwards the
reset service procedure.
Reset "SEr":
Keep the lever pressed (steam button of the hose) at
the same time as the machine is switched on, it must be
kept for 4 seconds after switching on and then a lever
must be released for a few seconds (the button must