Ambu Man User manual

Service Manual
Ambu Man
Page 1
RESPIRATORY CARE
TRAINING
For trained persons only

List of contents
Page 2
1. Introduction
1.1 Introduction .............................................................................................................................................................3
2. Trouble shooting...................................................................................................................................................4
3. Disassembly and assembly in main parts
3.1 Removal of head and chest skin with neck from base unit .........................................................................................5
3.2 Assembly of head and chest skin with neck to base unit............................................................................................9
4. Servicing parts in the head
4.1 Exchanging the valve unit in the head.....................................................................................................................11
4.2 Exchanging the lower jaw or the ear plugs..............................................................................................................16
5. Servicing parts in neck/chest
5.1 Exchanging the carotid pulse unit ...........................................................................................................................17
6. Servicing the base unit
6.1 Exchanging the band-positioning thrust roller .........................................................................................................19
6.2 Removing and replacing parts in the base unit ........................................................................................................22
6.3 Assembling the base unit........................................................................................................................................26
7. Servicing Ambu Defib Man
7.1 Dissambly of parts ..................................................................................................................................................30
7.2 Assembly of parts and testing .................................................................................................................................31
8. Test and calibration
8.1 Leakage test...........................................................................................................................................................33
8.2 Zero point check.....................................................................................................................................................34
8.3 Calibrating the depth of compression and hand-positioning indicator ......................................................................35
8.4 Calibrating the zero point on the inflation volume indicator.....................................................................................37
9. Spare parts and accessories
9.1 Spare parts and accessories ....................................................................................................................................38
9.2 Service parts...........................................................................................................................................................39
9.3 Illustrations ............................................................................................................................................................40

1. Introduction
This service manual is intended as help in trouble-shooting, service and repair of the Ambu Man. It guides
you through a complete disassembly of the main parts, so that you will be able to replace defect or worn
parts.
The part list indicates the parts that we can supply. For practical or technical reasons some small parts
cannot be supplied as individual parts and you will therefore sometimes receive a whole set to replace the
defective parts.
The Ambu Man is updated on a current basis. Consequently, in such cases modifications will be forwarded
as supplementary pages for insertion in the manual.
Warnings
The Ambu man should only be repaired by persons with adequate knowledge. After each dis- and reassem-
bly the Ambu Man must be tested before it is put back into training.
For safety reasons only a specialist should repair the Ambu Defib Man with electrodes for defibrillation, as
some parts may be exposed to high voltage during defibrillation.
Ambu A/S
Baltorpbakken 13
DK-2750 Ballerup
Denmark
Phone: [phone]
Telefax: [phone]
www.ambu.com
E-mail: [email protected]
Page 3

2. Troubleshooting
Fault
Head correctly hyperextended, but
insufflation not possible.
Head correctly hyperextended, but
after a few insufflations, air can no
longer be insufflated.
Indication of stomach inflation
despite correct volume and pressure
insufflation.
No indication of stomach inflation
despite high volume and pressure
inflation.
No insufflation, but constant indica-
tion of stomach inflation.
Hand position correct, but fault
signalled.
Hand position incorrect, but fault not
signalled.
Wrong indication for insufflation
volume.
Wrong indication for depth of com-
pression.
Head loose.
Possible cause
Head chain or nylon tie broken.
Defective elastic net.
Substantial leakage in system.
Defective stomach valve.
Black plate over stomach bag not
coupled to instrument.
Black plate over stomach bag not
coupled to instrument.
Thrust roller or thrust roller holder
at pressure point defective or miss-
ing.
Missing or defective spring at thrust
roller
Instrument wrongly adjusted.
Instrument wrongly adjusted.
Loose screws and nuts at head
mounting.
Parts have separated.
Remedy
Replace with nylon tie.
Replace elastic net.
Check out system between head
and lung/stomach bags, including
stomach valve. Replace the defec-
tive parts.
Replace stomach valve.
Couple black plate correctly to
instrument.
Couple black plate correctly to
instrument
Replace thrust roller and thrust
roller holder
Replace spring.
Adjust instrument (see section 8)
Adjust instrument (see section 8)
Insert screw and nut and then
secure using a lock nut.
Page 4

Page 5
3.1- 6 Undo the strap at the back, gently using a
schrewdriver.
3.1 Removal of head and chest skin with neck from base unit
3.1-1 Ambu Man model C with monitoring instrument
and socket for connection of computer/interface.
3.1-2 Serial number may be found under thorax adjust-
ment.
3.1-3 Remove arms if fitted.
Pull the arms carefully away from the body. If necessary
hold onto the mounting using a pair of polygrip pliers.
3.1-5 Remove the hook from the arm hook.
3.1-4 Insert a hook of approx. 2 mm through the hole
in the arm hook. Detach the pin in the arm from the
hook in the shoulder.

Page 6
3.1-12 Remove by lifting each part of the chest.
During removal, treat as gently as possible.
3.1- 7 On new models from serie 55376, the neck is
attached with 4 buttons. This means that the skin can be
detached easily. The following disassembly instructions
and pictures will only show the “old” skin detachment.
3.1- 8 Undo the chest skin and the two parts of the
chest on the back of the Ambu Man.
3.1- 9 Free the chest skin from the base unit.
3.1-11 Pull the chest skin over the head and carefully
pull the chest skin free of the two hooks.
3.1-10 Lift the skin gently off the torso.

Page 7
3.1-18 Turn back the chest skin and carefully pull the
head and chest skin away from the base unit.
3.1-13 To free the part of the chest turn it completely.
3.1-15 Disengage the locking device
3.1-17 Disconnect the thin tube from the rocker level
and the other pulse tube from the base unit. Detach the
chest skin and neck piece from the base unit.
3.1-14 Remove the necktube from the connector.
3.1-16 Disengage the head by lifting the head mount-
ing free of the neck clamp pin.

Page 8
3.1-19 Loosen the skin on the neck mounting from the
notch on the outside of the neck piece.
3.1-21 To detach the head from the neck, insert a flat
piece of metal between the head mounting pin and the
side of the notch inside the neck (A).
3.1-20 Remove the head from the chest skin.
A

Page 9
3.2-6 Refit the two parts of the chest on the rocker
lever.
3.2 Assembly of head and chest skin with neck to base unit
3.2-1 Fit the chest skin onto the base unit. Replace the
head by inserting the head mounting
3.2-3 Fit the mounting with two hooks onto the neck
clamp pin.
3.2-5 Moisten the end of both parts with alcohol and
mount the neck tube to the tube connector.
3.2-2 Connect the two thin tubes - the short tube to
the connector on the rocker lever assembly and the long
tube to the extension tube on the base unit.
3.2-4 Mount the locking device.

Page 10
3.2-7 When repositioning the part of the chest, handle
the mounting with care in order not to stress the materi-
als.The retaining clamp for the two parts of the chest
must be replaced if damaged. Drill out the two pop
rivets, fit a new clamp, and re-rivet (see 6.1-16 and 17).
3.2-8 Fasten the parts of the chest and chest skin on
the back. For models with arms carefully pull the hooks
through the holes in the chest skin using a pair of
pointed pliers. (Photo shows new “neck” model)
3.2-9 Attach the chest skin to the groove in the base
unit.
3.2-10 Lock the plastic straps on the backside, locking
the skin to the base. Observe the groove at the skin.

Page 11
4.1-6 Remove the shaft while holding the large springs.
4.1 Exchanging the valve unit in the head
Follow the directions contained in section 3.1 to remove the head
4.1-1 Remove the silicone rubber bushing with the
elastic net.
4.1-3 Loosen the screw to free the mounting and nylon
tie.
4.1-5 Disengage the spring washer from the shaft.
4.1-2 Disengage the sprint at the mounting (A) ena-
bling the mounting to move freely.
4.1-4 Disconnect the neck tube.
A
A

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4.1-12 Remove the head mounting together with the
cover plate.
4.1-7 Hold onto one side of the bar in the lower jaw
using polygrip pliers to avoid leaving marks where the
nylon tie passes. Loosen the two screws on the side of
the jaw.
4.1-9 Disengage the springs and the jaw shaft.
4.1-11 Grip the head mounting
4.1-8 Take off the jaw.
4.1-10 Remove the four nuts and washers using a 7
mm socket wrench.

Page 13
4.1-18 Place the jaw shaft with the two springs at-
tached. Assemble the springs on the head mounting.
4.1-13 Remove the complete airway valve unit.
4.1-15 Insert a complete new valve unit. The edge of
the valve seal should be at level with the outside of the
skull.
4.1-17 Fit the head mounting. Make sure that the jaw
is in position under the ear plugs on both sides. Tighten
the nuts using a socket wrench. Lead the nylon tie
through the hole in the valve.
4.1-14 The complete airway valve unit should only
be repaired by workshops experienced in this repair.
Normally, the entire unit is replaced.
4.1-16 Mount the cover plate.

Page 14
4.1-19 Assemble the shaft and big spring. Remember to
lock with 2 spring washers.
4.1-21 Fit the nylon tie and mounting. Tighten the
screw only so much that the nylon tie is allowed to run
easily through the retaining plate.
Tilt back the head unit until the corner of the fittings is
just abreast of the two lowest lines (A) . Carefully pull
the nylon tie (B) till the rubber part on the valve is only
just moving.
4.1-20 Fit the nylon tie.
4.1-22 Stretch the spring and secure the hook on the
head mounting.
A
B
4.1-23 Hold onto one side of the bar in the lower jaw using
polygrip pliers to avoid leaving marks where the nylon tie
passes. Loosen the two screws on the side of the jaw. Keep
the bar correctly positioned so as not to displace the springs
and nylon ties. Fit replacement lower jaw and tighten the two
screws while gripping the bar with the pliers.
4.1-24 Check that the jaw moves freely and activates
the nylon tie and valve unit when pressed upwards
against the skull. Check that the springs are secured.

Page 15
To reassemble the Ambu Man, follow the directions contained in section 3.2.
4.1-25 Moisten the neck tube with alcohol and attach
to the connector.

Page 16
4.2 Exchanging the ear plugs
4.2-1 If the ear plug has come loose, remove the plug
and clean the hole with a 7.9 mm drill without point .
4.2-2 Put a new ear plug into the mounting tool (span-
ner). Warm (do not burn) the side of the head e.g. with
a hair drier until it gets soft. Press the ear plug with the
tool. Remember to turn the ear plug into correct position
before fitting.

Page 17
5.1-6 Fasten the head onto the neck piece.
5.1 Exchanging the carotid pulse unit
Follow the directions contained in section 3.1. to disassemble from the torso
5.1-1 Unbutton the chest skin from the neck piece.
5.1-3 Remove the plastic tape and pull the pulse unit
and two tubes free of the neck piece. Mount new pulse
unit, push the tubes through the neck piece so that the
pulse unit is in close proximity to the neck piece.
5.1-5 Fasten the pulse unit on the neck piece.
5.1-2 Pull the neck piece free of the head (A), observe
the lock tap. See also 3.1-20 and following instructions.
5.1-4 Detach the cover.
A
A

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5.1-7 Attach the skin with the four buttons (version
with open neck).
5.1-9 Fasten the chest skin onto the neck piece.
5.1-8 Use destilled water for easy assembly.
To reassemble the Ambu Man, follow the directions
contained in section 3.2.

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6.1-6 Remove the locking ring and detach the bar,
thereby freeing the rocker mounting.
6.1 Exchanging the hand-positioning thrust roller
Follow the directions contained in section 3.1. to remove the skind and head
6.1-1 The base unit is now ready for disassembly.
6.1-3 Remove the rocker lever assembly from the spring
by pulling.
6.1-5 Detach the tension rod from the slit.
6.1-2 Loosen the spring screws and free the two tension
rods.
6.1-4 Remove the spindle from the rocker lever assem-
bly and detach the rocker lever.

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6.1-12 Mount the rocker lever and insert the spindle.
6.1-7 Remove the spring from the thrust roller using
pliers.
6.1-9 Insert the thrust roller as shown. Fit the thrust
roller so that it snaps onto the flat bar on both sides.
6.1-11 Insert the spring between the rocker mounting
and thrust roller holder.
6.1-8 Remove the thrust roller along with its holder
and replace with a new set.
6.1-10 Insert the bar and locking ring belonging to the
rocker mounting.