Miele G 7881 User Manual

							Refill Salt Indicator
The water softener is automatically
regenerated during the next program
cycle.
The program display will showa
Recharging during this process.
^Add regeneration salt whenever the
Refill salt indicatorbRecharge is on.
Water softener
21 
						

							Depending on the type of items you
wish to clean and disinfect, the
washer-disinfector can be used with an
upper basket and/or lower basket, as
well as, an assortment of inserts and
special baskets to suit your needs.
Baskets and inserts should be
properly selected to match the
application involved.
On the following pages you will find
loading examples and additional
information.
Before EVERY program start,
conduct the following visual
inspection:
– Are the items properly loaded and
secured in the machine?
– Are the hollow items properly loaded
so that all cavities and channels will
be flushed clean?
–
Are the spray arms clean and can
they rotate freely?
–
Is the filter combination free of
coarse debris (remove any coarse
material and clean the coarse, fine,
flat and micro-fine filters as needed)?
–
Is the basket adapter properly
connected to the water supply for the
spray arms and nozzles?
–
Are the process chemical dispensers
filled?After EVERY program completion,
conduct the following visual
inspection:
–Inspect the items for cleanliness.
–After washing, items should be
checked at random for protein
analysis, e. g., with the Miele Test Kit.
–Have any hollow items been
dislodged from their proper position
on the nozzles?
,Any items that were dislodged
from the adapters during a program
cycle must be washed again.
– Are the cavities and channels in any
hollow items cleaned through?
– Are the nozzles and connections
firmly attached to the
baskets/inserts?
Application
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							How to load the machine
–Always load items in such a way that
all surfaces will be exposed to the
cleaning water. This ensures that the
items will be properly clean.
–Do not nest any items inside other
items. Keep each item separate.
–Hollow items must be arranged for
complete inside exposure to the
cleaning water.
–Hollow items should be inverted and
placed in suitable baskets and
inserts so that the water will have
unrestricted access and exit.
– Deep-based items should be
arranged at an angle, so that water
can run off easily.
– Tall narrow pieces should be placed
in the center of the basket for best
water coverage.
– Baskets and inserts with an adapter
must be properly connected.
–
The spray arms must not be blocked
by items that are too tall or hang
through the baskets.
–
To avoid corrosion, only load
stainless steel items in good
condition.
–
Do NOT use this machine to wash
nickel-plated items or discolored
(oxidized) aluminum items.
–
Do not load plastics unless they are
heat-resistant.–NEVER process disposable items in
the washer-disinfector.
Prepare items before loading
^Empty all items before loading into
the machine. Comply with all
applicable infection-control
regulations.
,Ensure that no acid or solvent
residues, especially hydrochloric
acid or chlorides, get inside the
machine.
Item sorting
Contaminated items should be placed
directly in the washer-disinfector
without pre-treatment (dry handling).
Application
23 
						

							Spring adapter for the water
connection
The spring adapter for the water
connection must be properly engaged
when a basket is inserted into the
machine. In other words, the adapter
must be4-5mmhigher than the water
inlet in the machine.
If this is not the case, the adapter
needs to be adjusted as follows:
^
Loosen the locking ringa.
^
Move the adapter up to the proper
heightb.
^
Tighten down the locking ringc.
How to adjust the upper basket
The upper basket can be adjusted
above and below the middle position
by 2 cm each.
Depending on the height selected, and
which inserts are used, items of various
heights can be arranged in the baskets.
To adjust the upper basket:
^Pull the upper basket out as far as it
will go, lift it up off the runners and
remove.
^Use a 7mm wrench to unscrew the
roller bearings on either side of the
basket, then reposition as desired.
Application
24 
						

							Application
During patient treatment, check thatas
little residue as possible (dental
cement, polishing compound, etc.)is
left on the items (wipe off as needed).
After thermal disinfection, manual
cleaning in accordance with the
biological materials ordinance can be
conducted without danger of infection.
Rhodium coated mirrors must be
arranged so that their surfaces do
not suffer any mechanical damage.
Not all glass coated mirrors are
suitable for machine processing.Lower basket U 874/2
for inserts, e.g., E 130 and E 379.
Lower basket U 874/2
for inserts, e.g., E 131/1 for 5 filing
trays with partitions E 146 or 5 filing
trays for two-sided instruments E 363.
Application
25 
						

							Adding rinse aid
Rinse aid is needed to ensure that
water promptly falls away from the
washload, preventing spots and
speeding up the drying process.
Rinse aid (Mielclear) is loaded into the
reservoir and a pre-set amount is
dispensed automatically.
The rinse aid reservoir holds
approximately 180 ml.
,Inadvertently filling the rinse aid
reservoir with detergent WILL
damage the machine. Be sure only
to use rinse aid in the rinse aid
reservoir.
^Open the machine door.
^
Unscrew the reservoir cap.^Pour enough rinse aid into the
reservoir until the level indicator (see
arrow) is dark. Use a funnel if
necessary.
^Replace and tighten the reservoir
cap.
^Wipe up any spilled rinse aid to
prevent oversudsing during the next
wash cycle.
Dispensing processing chemicals
26 
						

							Rinse aid indicator light
^Rinse aid does not need to be refilled
until the "rinse" indicator light comes
on in the display.
Setting the rinse aid dosage
The dosage adjuster has settings from
1 to 6 (in other words,1-6ml). The
factory setting is at 3 ml.
If the items show spots after washing,
^adjust to a higher setting.
If the items show smearing or cloudy
streaks after washing,
^adjust to a lower setting.
Dispensing processing chemicals
27 
						

							How to add neutralizer
For certain programs, neutralizer is
dispensed in the rinse cycle after
washing, to help prevent discoloration
and corrosion spots on the items
(especially around jointed areas).
Neutralizer (pH = acidic) also helps
counteract any traces of (alkaline)
detergent from the surface of the items.
When a mild alkaline detergent is
used for washing, select a
neutralizer that contains phosphoric
acid.
When a neutral enzymatic liquid
detergent is used, select a
neutralizer that contains citric acid.
The neutralizer is automatically
dispensed during the second rinse
after the main wash cycle. To function
properly, the neutralizer container must
be filled and cleared of air (primed).
For specific instructions on how to
prime the system and set the dosage,
please read the section on
"Programming special functions".^Place the neutralizer container (red)
next to the machine on the floor or in
an adjacent cabinet.
^Insert the siphon tube into the
container opening and screw it into
place.
Dispensing processing chemicals
28 
						

							Neutralizer indicator light
^When the "Neutralizer" indicator light
comes on, it is important to promptly
refill or exchange the neutralizer
container.
The "Neutralizer" indicator light should
turn off.
^If the container has been allowed to
run dry, the light will not go out until
the priming process is performed
(See "priming the neutralizer
dispensing system").
Be sure to refill / exchange the
container before it becomes
completely empty.
Dispensing processing chemicals
29 
						

							How to add detergent
Using powder detergent
Before starting the program, load the
powdered detergent into the receptacle
(except for the programs "Rinse" and
"Drain").
Examples:
In the program cycle "Main Wash",
approximately 10.5 liters of water flow
into the machine.
To achieve a detergent concentration of
approximately 3 g/l, use 30 g of
detergent.
Always follow the detergent
manufacturer's recommendations for
dosage concentration.^Press the button on the dispenser
cover. The cover will pop open.
After a completed wash program, the
cover will already be open.
^
Load the detergent into the
receptacle.
^
Snap the cover closed.
,After program completion, check
to see that all the detergent
dissolved completely.
If not, the entire program should be
repeated.
Dispensing processing chemicals
30