Medela Lactina Operating instructions

The
Lactina’
Electric
Breastpump
Service
Instructions

Contents
Page
1.
General
Description
4
2. Technical Description
2.1. Lactina Select
2.1.1
Technical
Data
5
2.1.2
Exploded
View
Diagram
6
2.1.3
Spare
Parts
List
7
2.1.4
Electric
Circuit
Diagram
8
2.1.5
Dismantling
9
2.1.6
Assembly
10
2.1.7
Final
Test
Procedure
11
2.2. Lactina Electric Plus
2.2.1
Technical
Data
B
|
2.2.2
Exploded
View
Diagram
14
|
2.2.3
Spare
Parts
List
15
|
2.2.4
Electric
Circuit
Diagram
16
2.2.5
Dismantling
17
2.2.6
Assembly
18
2.2.7
Final
Test
Procedure
19
3.
Precautionery
Measures
/
Trouble
Shooting
20
4.
Service
Information
21
5.
Safety
Tests
22
6.
Terms
of
Guarantee
23
Lactina is a registered trademark of Medela, Inc.

1. General Description
Medela’s
Lactina
Breastpump
has
been
specially
developed
to
meet
the
most
stringent
demands
where
hygiene
and
mobility
are
concerned.
The
operating
principle
of
the
Medela
Lactina
is
to
simulate
the
natural,
physiological
conditions
encountered
in
breastfeeding.
The
pump
motor
and
the
suction
source
are
completely
separate.
All
components
which
can
come
into
contact
with
the
milk
are
part
of
the
accessories
and
can
be
very
easily
disconnected
from
the
drive
unit
for
cleaning
or
sterilization.
The
accessory
kit
can
also
be
used
separately
as
a
manual
pump.
A
handy
carrying
case
is
available,
offering
ample
space
for
the
pump,
the
accessory
kit
as
well
as
for
a
cooler
box
with
three
milk
bottles.
There
are
two
different
models
of
Lactina
with
the
following
general
specifications:
* Lactina Select, type no. 016.2011
—
with
variable
speed,
i.e.
the
number
of
suction
cycles
per
minute
can
be
regulated
—
powered
by
regular
electric
outlet
(120
VAC)
or
by
using
the
optional
Medela
Power
Pack
that
provides
12
VDC
with
its
rechargeable
battery
or
its
adapter
for
use
in
a
cigarette
lighter
receptacle
in
boat or car.
* Lactina Electric Plus, type no. 016.2012
— same as above, but with fixed suction rate
Both
models
can
be
used
for
single
and
for
double
pumping
(simultaneous
emptying
of
both
breasts)
by
using
the
appropriate
accessory
kit.
Refer
to
the
separate
accessory
kit
user’s
instructions
for
further
details.
These
Service
Instructions
are
valid
as
of
serial
number
937501.
Disposal:
This
breastpump
is
made
of
technical
plastics
and
metals
which
cannot
be
separated.
It
has
to
be
disposed
of
in
accordance
with
local
regulations.
WARNING
+
Do
not
use
or
site
the
pump
where
it
is
exposed
to
direct
sunlight
or
any
other
source
of
heat.
*
This
equipment
is
not
suitable
for
use
in
the
presence
of
a
flammable
anaesthetic
mixture,
*
Ifthe
power
cord
is
damaged,
it
has
to
be
replaced
by
a
qualified
service
person.
*
Before
taking
off
the
back
of
the
Lactina
housing
for
service
purposes,
do
not
forget
to
switch
off
the
pump
and
to
disconnect
the
power
cord
from
the
main
supply.

2. Technical Description
2.1. Lactina Select 016.2011
2.1.1 Technical Data
Suction Rate: infinitely variable approx. 40—60 cycles/min., mains
approx. 50 cycles/min., battery
Suction strength: infinitely variable up to approx. 240 mmHg
Dimensions: L 250 mm, D 150 mm, H 180 mm
Standard: IEC 601.1, IEC 601.1.2
Power Supply: 100-240 УАС / 50—60 Hz, 50 W ou 12 VDC, 16 W
Weight: 2.4 kg
Environmental Conditions for Transport and Storage:
— Temperature: —20 °C to +50 °C
— Relative Humidity: 20% to 95%
— Atmospheric Pressure: 90 kPa to 106 kPa
e
Symbols on the R Protection type B
specification plate:
HA] Protection Class TE (double insulation)
E Fuse T 1,25 A
DC-Connection: Cu +
CE-mark according to 93/42/EEC ÇE
Lactina Select with a single pumping accessory kit

2.1.2 Exploded View Diagram

2.1.3 Spare Parts List
Item Description
1.
D
ON
N
N
N
N ND
bn
bu
Es
bd
ビビ
ビビ
ロビ
SSNSRESRSSSSRAARERES
CP
NAT
는
WN
Rubber clamp
Pumping arm, complete
Cotter
Bearing
Case complete variable SPS
Elastic buffer
Cover insert .
Fillister head self-tapping screw type 1, 2.9x 13
Fuse T 1.25 A USA
Fuse holder complete, USA
Gearbox with commutator motor 12 V
Bearing pin
Spring holder (special tool for fitting)
Countersunk self-tapping screw M 2.9 x 6.5
Cord clamp
Cord sleeve
Power cord USA
Fillister head screw with cross-slot M4 x 8
Back
Run-Stop rocker switch
Protecting cover (transparent)
Mains connecting cable
SPS variable for 016
Spacing piece complete
Knob
Nut cover with line
Cover for knob
Green LED lens
Order-No.
820.0009
800.0111
810.0179
810.0153
800.0244.
812.0025
810.0113
411.1205
931.0012
900.0382
600.0406
599.0028
522.1433
429.0002
599.0005
824.1326
928.0026
411.1001
810.0107
934.0159
812.0007
900.0332
901.0034
810.0351
699.0065
699.0064
699.0066
942.0009
The
company
reserves
the
right
to
change
technical
specifications
and
designations
and/or
order
numbers
without
prior
notice.

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2.1.5 Dismantling
Important:
Before
taking
off
the
back
of
the
Lactina
housing
for
service
purposes,
do
not
forget
to
switch
off
the
pump
and
to
disconnect
the
power
cord
from
the
mains
supply!
Gearbox unit:
—
Remove
the
back
(20)
after
releasing
the
screws
(15
and
19).
—
Release
power
cord
with
cable
tension
relief
(16
to
18)
from
the
back
(20)
and
gearbox
unit
(11).
‘Turn
the
gearwheel
until
the
pumping
arm
(2)
is
swung
in
fully.
1
Swing out the pumping arm (2) fully by hand.
Lock
the
return
spring
by
inserting
the
spring
holder
(14)
obtainable
from
Medela
in
the
slot
provided
for
this
purpose
(see
exploded
view
diagram).
— Swing in pumping arm (2).
ー Withdraw bearing pin (12).
ー Swing out pumping arm (2) again fully.
—
Detach
electrical
connections
on
right-hand
side
from
main
terminal
and
withdraw.
— Remove gearbox unit (11).
Electronics:
— Remove gearbox (11) as described above.
—
Compress
retainer
of
switch
case
and
press
out
switch
(21)
from
inside
to
outside.
Remove
SPS
red
+
blue
connections
from
switch
(21).
Disconnect motor leads from switch (21).
Withdraw
LED
(D1)
(fuse
holder
9/10
+
23
is
also
preferably
dismantled
beforehand).
Detach SPS cable (24) from its holders.
— Remove cover (28) from knob (26 + 27).
—
Release
screw
in
knob
(26
+
27)
and
remove
knob.
—
Release
nut
under
knob
(26
+
27)
and
draw
off
potentiometer
inwards.
—
Swing
in
pumping
arm
(2)
fully.
Hold
pump
case
(5)
by
handle
and
withdraw
SPS
(24)
with
other
hand.
Pump arm:
—
Remove
gearbox
(11),
preferably
also
SPS
(24)
according
to
description
above.
—
Dismantle
cover
insert
(7)
after
releasing
the
screws
(8).

2.1.6 Assembly
Assembly
is
performed
in
the
reverse
sequence
to
the
above
description.
The
following
points
should
also
be
noted:
—
Sequence
of
cable
routing
from
top
to
bottom:
mains
lead
from
SPS,
potentiometer
(RV1),
switch,
LED
(D1).
—
The
SPS
must
be
placed
right
at
the
rear
of
the
case
and
the
cables
must
be
pressed
fully
into
their
holders.
—
Insert
potentiometer
(RV1)
in
spacing
piece
(25)
in
positioning
pin
from
inside
to
outside.
The
potentiometer
must
lie
flat
on
the
spacing
piece.
Place
nuts
on
from
outside
and
tighten.
—
Tum
potentiometer
clockwise
to
stop,
fit
knob
(26
+
27)
and
turn
clockwise
until
line
is
at
7.
Tighten
screw.
—
Before
fitting
the
back
check
whether
the
internal
parts
of
the
pumping
arm
(2)
do
not
touch
anywhere.
—
Connections
on
right-hand
side
of
mains
terminal
strip
(KL1)
from
top
to
bottom:
Power
cord
no.
1,
power
cord
no.
2
and
SPS
brown,
SPS
blue.
—
Connections
on
left-hand
side
of
mains
terminal
strip
from
top
to
bottom:
black,
blank,
white.
—
Fitting
of
the
cover
insert
(7)
is
simplified
if
the
pumping
arm
(2)
is
not
swung
in
completely,
but
only
set
to
the
final
position
together
with
the
cover
insert
(7).
10

2.1.7 Final Test Procedure
a) General checks
—
100%
check
(visual)
of
type
designation,
serial
no.,
DC
plate
12
V
and
labeling
on
back.
—
100%
check
with
respect
to
air
gap
between
swivel
arm
and
case
with
leaf
gauge.
Permissible
air
gap
0.2-1.5
mr;
if
the
air
gap
is
outside
this
range
>
reject
unit
and
replace.
—
100%
check
with
respect
to
gap
between
case
and
back,
permissible
gap
0.8
mm.
If
gap
>
0.8
mm,
the
back
must
be
adjusted
or
replaced.
— 100% check high voltage test.
Test points: 4 screw heads on back
2 screw heads case floor
— 100% check rubber protection to switch for tightness.
— 100% check tightness of rotary knob with cover.
b) Running test A_100% check
Allow
unit
to
run
for
4
hours
without
cylinder
at
position
4
(standard).
LED
must
light.
c) Running test B 100% check
Check of running noise:
Functional check:
— Mains plug inserted (SPS active)
Switch at “RUN” unit runs and LED lights
* Switch at “STOP” LED lights, unit stationary
— DC inserted (12 V) (SPS not active)
* Switch at “RUN” unit runs, LED does not light
*
Switch
at
“STOP”
LED
does
not
light,
unit
stationary
11

2.2. Lactina Electric Plus 016.2012
2.2.1 Technical Data
Suction Rate: approx. 50 cycles/min.
Suction strength: infinitely variable up to approx. 240 mmHg
Dimensions: L 250 mm, D 150 mm, H 180 mm
Standard: IEC 601.1, IEC 601.1.2
Power Supply: 100-240 VAC / 50—60 На, 50 W or 12 VDC, 16 W
Weight: 2.4kg
Environmental Conditions for Transport and Storage:
一 Temperature: —20 °C to +50 °C
— Relative Humidity: 20% to 95%
— Atmospheric Pressure: 90 kPa to 106 kPa
e
Symbols on the TR Protection type B
specification plate:
[| Protection Class H (double insulation)
+ Fuse T 1,25 A
DC-Connection: © +
CE-mark according to 93/42/EEC て €
0123
Lactina Electric Plus with a single pumping accessory kit
13

2.2.2 Exploded View Diagram
14

2.2.3 Spare Parts List
Item Description
1
N
eR
BESNESERRRRERES
SPP
NNT
Pe
NI
Rubber clamp
Pumping arm, complete
Cotter
Bearing
Case complete SPS
Elastic buffer
Cover insert
Fillister head self-tapping screw type 1, 2.9 x 13
Fuse T 1.25 A USA
Fuse holder complete, USA
Gearbox with commutator motor 12 V
Bearing pin
Spring holder (special tool for fitting)
Countersunk self-tapping screw M 2.9 x 6.5
Cord clamp
Cord sleeve
Power cord USA
Fillister head screw with cross-slot M4 x 8
Back
Run-Stop rocker switch
Protecting cover (transparent)
Mains connecting cable
SPS without potentiometer for 016
Green LED lens
Order-No.
820.0009
800.0111
810.0179
810.0153
800.0245
812.0025
810.0113
411.1205
931.0012
900.0382
600.0406
599.0028
522.1433
429.0002
599.0005
824.1326
928.0026
411.1001
810.0107
934.0159
812.0007
900.0332
901.0035
942.0009
The
company
reserves
the
right
to
change
technical
specifications
and
designations
and/or
order
number
without
prior
notice.
15

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16

2.2.5 Dismantling
Important:
Before taking off the back of the Lactina housing for service purposes, do not forget to switch off the
pump and to disconnect the power cord from the mains supply!
Gearbox unit:
— Remove the back (20) after releasing the screws (15 and 19).
— Release power cord with cable tension relief (16 to 18) from the back (20) and gearbox unit (11).
— Turn the gearwheel until the pumping arm (2) is swung in fully.
— Swing out the pumping arm (2) fully by hand.
— Lock the return spring by inserting the spring holder (14) obtainable from Medela in the slot provided
for this purpose (see exploded view diagram).
Swing in pumping arm (2).
Withdraw bearing pin (12).
I
Swing oui pumping arm (2) again fully.
Detach electrical connections on right-hand side from main terminal and withdraw.
Remove gearbox unit (11).
Electronics:
— Remove gearbox (11) as described above.
~ Compress retainer of switch case and press out switch (21) from inside to outside.
Remove SPS red + blue connections from switch (21).
Disconnect motor leads from switch (21).
Withdraw LED (D1) (fuse holder is also preferably dismantled beforehand).
Detach SPS cable (24) from its holders. :
Swing in pumping arm (2) fully.
Hold pump case (5) by handle and withdraw SPS (24) with other hand.
Pump arm:
— Remove gearbox (11), preferably also SPS (24) according to deseription above.
— Dismantle cover insert (7) after releasing the screws (8).
17

2.2.6 Assembly
Assembly is performed in the reverse sequence to the above description. The following points should also
be noted:
— Sequence of cable routing from top to bottom: mains lead from SPS, switch, LED (D1).
— The SPS must be placed right at the rear of the case and the cables must be pressed fully into their
holders.
— Before fitting the back check whether the internal parts of the pumping arm (2) do not touch anywhere.
— Connections on right-hand side of mains terminal strip (KL1) from top to bottom:
Power cord no. 1, power cord no. 2, SPS brown, SPS blue.
— Connections on left-hand side of mains terminal strip from top to bottom: black, blank, white.
— Fitting of the cover insert (7) is simplified if the pumping arm (2) is not swung in completely, but only
set to the final position together with the cover insert (7).
18

2.2.7 Final Test Procedure
a) General checks
— 100% check (visual) of type designation, serial no., DC plate 12 V and labeling on back.
— 100% check with respect to air gap between swivel arm and case with leaf gauge. Permissible air
gap 0.2-1.5 mm; if the air gap is outside this range — reject unit and replace.
— 100% check with respect to gap between case and back, permissible gap 0.8 mm.
If gap > 0.8 mm, the back must be adjusted or replaced.
— 100 % check high voltage test.
Test points: 4 screw heads on back
2 screw heads case floor
~ 100% check rubber protection to switch for tightness.
— 100% check tightness of rotary knob with cover.
b} Running test A 100% check
Allow unit to run for 4 hours without cylinder. LED must light.
c) Running test B 100% check
Check of running noise:
Functional check:
~ Mains plug inserted (SPS active)
* Switch at “RUN” unit runs and LED lights
* Switch at “STOP” LED lights, unit stationary
- DC inserted (12 V) (SPS not active)
* Switch at “RUN” unit runs, LED does not light
* Switch at “STOP” LED does not light, unit stationary
19

3. Precautionary Measures / Trouble Shooting
The breastpump should only be used in a dust-free environment. Do not use or site the pump where it is
exposed to direct sunlight or any other source of heat.
What to do when...
— the pump does not run when it is switched on:
Check whether the Lactina breastpump is properly connected to the electric supply. Check the fuse.
= pump action is too weak: -
Suction strength can be adjusted using the vacuum regulator. Maximum suction is achieved by setting
the pointer on the regulator ring to MAX. If suction strength is still inadequate at this setting, please
check whether:
* the vacuum regulator ring has been turned beyond the stop, has been displaced, is no longer a close
fit or is dirty on the inside.
» the rubber seal of the piston is seating correctly and is in good condition.
* the valve has been correcily fitted to the breasishield. Is the valve membrane clean and closing
properly when in resting position?
* the cylinder has been screwed tightly home into the cylinder holder (or into the breastshield in the
case of manual operation).
* there is no leak in the tube connection between cylinder holder and breastshield.
+ the breastshield fits closely to the breast.
— the vacuum cannot be regulated:
The two holes in the cylinder under the vacuum regulator ring may be blocked with dirt. Clean them
using a brush and soapy water. The points listed above should also be checked.
— the vacuum is not released at the end of the suction stroke:
‘The ventilation hole at the bottom of the cylinder may be blocked with dirt; or the piston has not been
drawn right to the end during manual operation.
— the piston does not return after the suction phase:
Check whether the suction circuit is blocked or whether there is a kink in the tubing.
20