NORTH AMERICAN DRÄGER Drager KIT Air Diss User manual
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KIT,AIRDISS&CO2YOKE
INSTALLATIONPROCEDURE
NOTE: Thisprocedureoutlinesanextremelycomplexmodificationoftheanesthesia
machine.InstallationofthiskitshallbeperformedonlybyaNorthAmerican
DrägerqualifiedTechnicalServiceRepresentativewiththenecessaryknowledge
andexperience.
NOTE: Thisprocedureappliesto2-gasmachineswithearliertubingarrangements,fluted
flowknobguards,andflowcontrolknobslocatedbelowthe100to1000ml/min.
(fine)flowmeters.
1. TurntheSystemPowerswitchto
ONanddisconnectallpipeline
hoses.
2. Closeallcylindervalvesexceptthe
O
cylindervalve.
2
3. Settheoxygenflowrateto5l/min.
4. OpentheN
Oflowcontrolvalveto
2
drainpressurefromthesystem.
5. ClosetheO
cylindervalve,and
2
closetheflowcontrolvalves.Press
theO
FLUSHbuttontodrain
2
pressurefromthesystem.
6. TurntheSystemPowerswitchto
STANDBYandremoveACpower
fromthemachine.Disableallcircuit
breakers.
7. Removethescrewssecuringthe
tabletop,andremovethetabletop.
CAUTION: Use ESD control when
handling any electronic
componentsorassemblies.
9. Removethevaporboxfrontcover.
FormachineswithaMultispec
analyzer,removeallconnectionsto
thePCBassemblyonthevaporbox
frontplate,andremovethePCB
fromtheplate.
10. Removethevaporboxbackcover.
11. Removethescrewsholdingthe
angledfrontplateatthetopofthe
flowmetershield,andremovethe
plate.
12. Removeallflowcontrolknobs.
13. Removethetwoscrewssecuringthe
knobguard;removetheguardand
theflowmetershield.
8. Removetheflowmeterhousingback
cover.
1
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INSTALLATION PROCEDURE (continued)
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CAUTION: Use ESD control when
handling any electronic
components or assemblies.
14. Remove the flowmeter lights PCBs
and channels from the studs on the
O
and N2O flow channels.
2
15. Remove the stop pin hex nuts from
each flow control valve.
16. Remove the flow control valves: hold
each at the wrench flats and turn it
counter-clockwise.
17. Remove each flowmeter tube by
turning its retaining insert at the
top of the assembly counterclockwise until there is enough
clearance to remove the tube from
the channel.
18. Disconnect theflextubing connected
to the N
remove the O
O restrictor housing, and
2
and N2O restrictor
2
assemblies.
19. Remove the cross-over tubes
connecting the O
and N2O fine and
2
coarse flowmeter ports.
24. Remove the three socket head cap
screws securing the bottom
flowmeter block to the channel
assembly.
25. Pull the bottom block forward,
disconnect the small diameter flex
tubing from the block, and remove
the block.
26. Disconnect the flex tubing from the
O
and N2O pipeline gauges.
2
27. Remove the three socket head cap
screws securing the flowmeter
assembly, and remove the assembly.
28. Remove the kep nuts securing the
cylinder and pipeline gauges to the
flowmeter channel and remove the
gauges.
29. Remove the socket head cap screws
securing thetop block to the channel
assembly.
30. Apply masking tape to the raised
surfaces of and the entire inside
area ofthe center flowmeter channel
to prevent scratching.
20. Remove the manifold assembly
connected to the O
and N2O outlets
2
at the top of the flowmeters.
21. Disconnect the 4-way fitting and
restrictor assembly’s lower copper
tube from the O
flowmeter inlet
2
port.
22. Disconnect the copper tube attached
to the N
O flowmeter valve port.
2
23. Disconnect the copper tubes from
the O
and N2O cylinder gauges.
2
31. Temporarilyattach the 4-gas bottom
block to the channel with the screws
that were previously removed from
the original block.
32. Using the bottom block as a
template, mark the circumference of
the 4th gas flow control housing
onto the channel: (Insert a
flowmeter gasket (P/N 4102725) into
the housing. This will provide a
smaller diameter hole to aid in
locating the center point.) The hole
location is shown in Figure 1.
2
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INSTALLATION PROCEDURE (continued)
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SP10501
7/64 IN. DIA. HOLE
(DRILL)
11/16 IN. DIA.
CLEARANCE HOLE
(DRILL)
(LOCATE CENTER
USING 4-GAS BLOCK
AND GASKET AS
TEMPLATE)
1 7/8 IN.
Figure 1: DRILLING LOCATIONS: 4-GAS CONVERSION
3
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INSTALLATION PROCEDURE (continued)
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33. Remove the 4-gas bottom block and
centering gasket.
CAUTION:
Perform the next four steps in a
suitable location away from the
anesthesia machine to prevent
drilling chips from entering the
pneumatic system.
34. Center punch the marked hole and
drill an 11/16 in. dia. hole into the
flowmeter channel. A hole saw is
recommended. De-burr any sharp
edges.
35. Measure and mark a location 1 in.
up from the lower center spacer
hole, and centered in the channel as
shown in Figure 1.
36. Carefully drill a 7/64 in. dia. hole at
this location, and de-burr any sharp
edges.
37. Remove all masking tape previously
applied, and carefully clean up any
metal chips from the flowmeter
assembly and surrounding area.
38. Using a small amount of Loctite
#271 (red), thread a 3/16 in. tube
straight fitting (P/N 4109402) into
the back of a high pressure gauge
(P/N 4110575-002).
39. Apply a small amount of Loctite
#271 (red) to the threads of a 1/16
in. hose barb (P/N 4111771) and
pipeline pressure gauge (P/N
4110575-001). Assemble the fittings
with coupling (P/N 4103668) as
shown in Figure 2.
4
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INSTALLATION PROCEDURE (continued)
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40. Place the pipeline gauge assemblies
into the upper holes of the gauge
channel and secure each gauge with
two 10-32 kep nuts (P/N HW55002
x2). See Figure 2. Reuse the original
hardware to secure the O
and N2O
2
gauges.
FLOWMETER CHANNEL
PIPELINE
PRESSURE
GAUGE
41. Place the cylinder gauge assemblies
SIDE VIEW
into the lower holes of the gauge
channel and secure each gauge with
two 10-32 kep nuts (P/N HW55002
x2). Reuse the original hardware to
secure the O
and N2O gauges.
2
HOSE BARB
SP10502
FITTING
CYLINDER
PRESSURE
GAUGE
GAUGE MOUNTING NUTS
Figure 2: PIPELINE AND CYLINDER GAUGE ASSEMBLY AND MOUNTING
5
COUPLING
STRAIGHT
FITTING
(2X EACH GAUGE)
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INSTALLATION PROCEDURE (continued)
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42. Apply a small amount of Loctite
#271 (red) to the threads of two 2-56
x ¼ in. pan head screws (P/N
HW02000 x2). Place a #2 lock
washer (P/N HW67012 x2) on each
screw, and secure the two shoulder
spacers (P/N4110843 x2) to the
inside of the center flowmeter
channel.
43. Reinstall the top block assembly to
the flowmeter channel using the
hardware previously removed.
44. Threadtwo inserts (P/N4102506 x2)
into the center locations of the top
flowmeter block until snug.
45. Secure the 4-gas bottom block (P/N
4110572) to the flowmeter channel
using the hardware previously
removed from the original block.
47. Install a #113 O-ring (P/N 4102792
x4) in the grove of each flowmeter
insert on all four inserts. Apply a
small amount of Parker Super-OLube to these O-rings.
48. Thread the chromed flowmeter
insert into the upper hole of the
bottom block, and the remaining
brass inserts into the lower holes
until snug. DO NOT overtighten the
inserts.
49. Install the flow control valves (P/N
4103352 x2) into the flowmeter
inserts. Reuse the original O
N
O flow control valves. CAUTION:
2
2
and
Before tightening the cartridge,
rotate the valve shaft several turns
counter-clockwise to prevent
bottomingthe valve element into the
seat when the cartridge is tightened.
46. Install a #018 O-ring (P/N 4102336
x4) at the shoulder of each of the
four bottom flowmeter inserts
(consisting of P/N 4110576 x3 and
4110573) as shown in Figure 3.
50. Install the stop pin nuts (P/N
4103382 x2) onto the flow control
assemblies. Reuse the original stop
pin nuts for the O
and N2O
2
assemblies.
51. Thread two 10-32 x 1/16 in. hose
barb fittings w/seal (P/N 4112707001 x2) into the back of the bottom
flowmeter block.
52. Remove the nuts and ferrules from
eight ¼ in. tube straight fittings
(P/N 4109408 x8). Apply a small
amount of Loctite #271 (red) to the
threads of each fitting, and thread
the fittings into the top and bottom
blocks at the locations marked A
Figure 3.
6
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INSTALLATION PROCEDURE (continued)
REAR VIEW OF FLOWMETER CHANEL
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SP10503
AA
HOSE BARB
FITTING W/SEAL
BOTTOM BLOCK
MOUNTING SCREWS (3X)
STOP PIN
NUT
FLOW CONTROL
VALVE
A
AA AAA
DETAIL OF FLOW CONTROL
INSERT ASSEMBLY
CROSS-OVER
TUBES (2X)
HOSE BARB
FITTING W/SEAL
(SIDE VIEW)
O-RING, #113
INSERT
O-RING, #018
Figure 3: INSTALLATION OF FITTINGS AND FLOW CONTROL VALVE INSERT ASSEMBLY
7
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INSTALLATION PROCEDURE (continued)
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53. Assemble the compression fittings
onto the open ended tubes on the 4gas manifold assembly (consisting of
P/Ns 4108483, 4109408 x4,4109410,
4110834-009 x3, and 4110837-013
x2) as shown in Figure 5. Ensure
that the Swagelok fittings with the
two-piece ferrules are assembled as
shown in Figure 4.
TWO-PIECE
FERRULE
Figure 4: ASSEMBLY OF SWAGELOK FITTINGS
Insert the copper tubes into the
manifold assembly as shown in
Figure 5. Before tightening the
compression nuts, ensure that the
tubing is inserted into the fittings as
far as possible.
COPPER
TUBING
COMPRESSION
NUT
SP10504
54. Attach the copper tubes on the
manifold assembly on the ports at
the top of the flowmeter bank as
shown in Figure 5. Ensure that the
tubing is inserted into the fittings as
far as possible, and tighten the
compression nuts.
O2
MIX
55. Attach the correct gas-identifying
label (P/N 4109871, 4109872,
4109873, 4109874, and 4109901) to
each tube on the manifold assembly
as shown in Figure 5.
SP10505
N20
AIR
MANIFOLD
TOP VIEW
Figure 5: FOUR GAS MANIFOLD ASSEMBLY WITH LABELS
8
CO2
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INSTALLATION PROCEDURE (continued)
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56. Reinstall the flowmeter channel
assembly using the hardware
previously removed.
57. Reinstall the cross-over tubes
connecting the oxygen and nitrous
oxide fine and coarse flowmeters.
Verify that the correct identification
labels are attached to each tube.
58. Mount the cylinder support (P/N
4106690) on the bottom frame rail at
the back of the machine (see Figure
6) using two ¼-20 x 2½ in. hex head
screws (P/N HW08009 x2), lock
washers (P/N HW65010 x2) and flat
washers (P/N HW66004 x2).
REAR VIEW
59. Mount the CO
(consisting of P/Ns 4111792,
HW06006, 1101624, 4104716,
4105929 x2, and 4112755-001), (and
spacer block (P/N 1101593) on
earlier models) on the upper frame
rail of the machine as shown in
Figure 6. Use two 5/16-24 x 1¾ in.
socket head screws (P/N HW01058
x2) andlock washers (P/N HW65005
x2). Apply a CO
1101639) on this yoke.
YOKE ASSEMBLY
CO2
SPACER
yoke assembly
2
label (P/N
2
YOKE
MOUNTING
LOCATION
SP10506
CYLINDER SUPPORT
MOUNTING LOCATION
Figure 6: CO2YOKE AND CYLINDER SUPPORT MOUNTING LOCATIONS
9
CYLINDER
SUPPORT
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