AESERVICES
SECTION 1
STANDARD SERVICE PROCEDURE
REVISION:- 7
DATE:- 14.03.2001
AUTIIORlSATlON:-
Tee 4 Vaporizer Seivice Manual
Section I
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Page I orl8
Revision 7
A E SERVICES
SECTION 1
SI<:RVICJNG
I. Tntroductiun
The standard service of a T cc 4 Vaporizer shall consist of the following:
IJisassembly of components as required.
Thorough cleaning.
Inspection for damage and wear.
Rene,.-al of Wicks, Seals and damaged or worn components as required.
LubricatiolL
Tactile TesL~.
Chee.ks of the delivered concentration under cfosely defined conditions and
re-calibration as necessary.
Unless otherwise staled, the procedures which follow arc appl icahle Lo all Tee 4 vaporizers.
At each stage of testing, lhe openllor shal I record the test results on
Service Record A.F.QF-10.71/3 (filled-in by hand)and on the Test Certificate
generated by the laser rcfractomeler and laptop computer.
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2
SERVICE PR<><:t:DURJ:S
2.1
Draining and Drying Out
2.1.1
Method I
2.1.l.l
Draining
a) Drain all the free liquid from the vaporizer until onl y a very small amoum of
liquid can be seen in the level tube. Note. Draining can be assisted by carefully
tilting the vapori;-.er slightly forwards.
2.1.1.2
D rying-Out
a) Mount the vaporizer on Lhc lest stand and turn the dial 10 its maximum setting.
b) Pass a fltlw of 5 litres/minute air or oxygen through the vaporizer for al least one
hour until the wicks have dried out. Exhaust to suitable a gas scavenging sysL£m.
Alternatively:
a) Block the outlet of the vaporizer. turn the dial to its maicim um setting and connect
the vaporizer drnin to a vacuum system (between IO and 30 litres/minute negative
flow) for one hour until the vaporizer is dry.
2.1.2
Method 2
Agent Recovery c:onden!ICIJ
2.1.1.1
Drainine
a) Connect the vaporizer to the vacuum ~-yslem by inserting drug specific adaptor
in Lo the drain port of the keyed filler assembly and clamping ii in position with
the clam p screw.
b) Open the drain screw and set the dial to its maximum mark.
e) To ensure that all liquid is drained from the vaporizer, till the vaporizer forward
slightly until liquid can no loTT!,>er he seen flowi ng into the glass llask.
2.1.2
prying Ont
a) Ensure that the Condenser is switched · Off'.
b) Open the druin valve, and drain oil all ageot into the appropnately labelled
measuring cylinder. Rec;ord the quantity of anaesthetic agent recovered on the
Condenser Record Form AEQF-10.6. 1/1.
c) Transfer the agent into the appropriatel y labelled brown W inchester bottle for
future purity check.(Rd~ lo TEST FQlJJPMl.::N r MANlJAL Section 1 I). Store
the Winchester bottle in the de~ignatcd quarantine area of the <.ln,.1g cupboard.
Tee 4 Vaporizer Service Man ual
Section I
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EN.t'LURANF. CONDENSER ONT,Y
Close the valve on the outlet 10 the Condenser and open the drain valve.
Turn on the drying-out pump at the time-switch to force any remaining water
out of the system.
Turn off the dl)'ing-out pump, close the drain valve, and open the outlet valve.
NOTE: In order to speed up the Condenser thawing-out process, the heater switch
may be set in the red-light position.
fSOFLURANF. CONDENSER ONLY
Close the valve on the outlel lo lhe condenser and open lhe drain valve. Detach the
pipe T connection on the Condenser inlet, and blow through the Condenser using an
air-line gun to force out any remaining water lrom the system_
<}pen the outlet valve and re-fit the T piece.
d) Switch on the Condenser by turning the switch to the cooling position,
( the green lamp will be ill uminatcd)and allow a period or 4S minutes tn
elapse in order to permit the correct open1ting temperature to be achieved.
c) lJuring d.rJing-out monitor the Condenser pressure gauge. An increase in
pressure indicate.~ that ice is causing a restriction to the ga~ llow, and that
action must he taken lo restore the Condenser's optimum operating condition.
f)
lfthe specified pressure is exceeded, inform the Service/Te~t Supervisor,
who will take the rcqui red action.
g)
Record the quantity of dried-out vaporizers on i\EQl'• I0.6. Iii
THEN:h)
Blank off the inlet port with a plastic plug.
i)
Connect the vaporizer to the evacuation system
j)
Turn the dial to the maximum calibration mark and allow the vaporizers to
dry out as follows:
Tialothane
Ent1uranc / lsofluranc
2.2
40 minutes Max.
30 minutes Max
MAXTEST
Sec Section 3
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2.3
INSPEC'llON/CIJF.CK
With the exception of the Serial Number Label, located on the rear lace oflhc
lnl.Crlock Block, and the vaporizer type label, on the front face of the foterlock Block,
carefully i-emove all other .~elr adhesive labels and adhesive residue from the
vaporizer u<;ing a cloth moistened with f.lecsol fD or similar cleauing agent.
Visually examine the vaporizer for signs of external damage. Where necessary. renew
damaged or worn parts during the service.
Ensure that the Locking Lever operates positively and that the vaporizer Jocks
satisfactorily onto the Sele1.-"!atllC manifold.
2.4
DIAL ASSEMBLY (figure 1, Page 8)
a) Remove the self adhesive Dial Cover Label from the Dial.
b) l ,ou~n the thn.-c cheese-head screws ( M3) which secure the Dial and remove the dial
Assembly.
c) Ins peel the Clicker Plungers and Springs and also the locking catch mechanism.
Renew any parts which arc damaged or worn.
2.5
S'IUP CONTROL (figure 2, Page 8)
a) Ch..-ck the nylon Stop Control for damage and wear and if necessary replace.
NOTE: If the stop control has to be replaced, the position of the edge of the stop at
the maximum dial setting may have to he a adjusted by culling or filing the stop sn
that the dial can reach the maximwn graduation on the dial.
2.6
REMOVING/REPLA(:ING A ROIARY (Hgure 3, Page 9 and
Figures 4 & S, Page 10)
a) Remove the Locking Lever screw (M3), the Locking Lever and the Spindle Bush.
Peel-off the self adhesive Label from the Interlock .Block to expose the heads of the
hexagon socket head screws (M4). Rcmo"e the two Po:li head screws and Top Cover
Plate.
Un~Tew completely the two Pozi head screws and lift out the Pivot AnniPlatform
Assembly.
It may be necessary to lever out these assemblies but care must be taken not to
damage the black anodizing or the Interlock Block.
Carefully remove the Woodruff Key and put to one side for later use.
Note. There are two designs of Rotary Valve in use. The earlier one uses a separnte
WoudruffKey and the later one ha~ an integral key.
Unscrew and remove the three M.3 clamp screws and Clamp Tabs.
Unscrew the four M5 and the two M4 screws that secure the Interlock lllock.
Lift off the Interlock Block, leaving the Rotary Valve, Washer.; alld Compression
Spring in place.
Remove the Pivot Cam and Retaining Ring from the Rlock, lining over the Spirol
Pin~. Remove and discard the black rubber Distributor Seal from the bore of the
Interlock Ulock.
Note. Ir it is necessary 10 tit a new Serial Plate, the Interlock Block should be drilled
at this point.
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AESERVICES
b) Carefully lift the Rotary Valve off the Sump Cover and remove and place to one side
the Thrust Washcr(Thick), Spring and Thrust Washer(Thin).
NOTE: The Rotary Valve and Sump Cover are very irnponant precision components
and great eai-e must be taken not to damage them when they arc being worked on or
handled.
c) Inspect and clean the Rota,y Valve and Sump Cover checking for damage.
Clean the Rotary Valve by wiping with a soft cloth moistened with Elecsol FIJ,
taking particular care not to damage the lower lace, then polish with a clean, dry
cloth. NOTE. The Rotary Valve must not be soaked in Ulccsol FIJ. Any marks or dirt
on the surface of the Valve, which an,~ not easily removed by wiping, should be
i-emoved by gently rubbing with 'Duraglit' Silver Polish Wadding and then wiped
with a soft cloth moistened with Elecsol m. Finally, ii should be polished with a
clean, dry cloth.
Materials of a moi-e abrasive nature must not be used.
d) Thoroughly clean the Sump Cover with a soil cloth moistened with Elccsol FD
taking care not to scratch or damage the main sea ling face. Then polish with a clean
diy cloth.
e) Before fining the Rotaiy Valve, write the Valve Presswe Reading, if available, on the
Scrv ice Record.
I) Very carefully place the Rotary Valve on the Sump Cover with the key or keyw.iy
positiont¾I to the right when viewed l"rom the front of lhe vaporizer.
g) lllspect the thinner Thrust Washer and also the thicker Thrust Washer and replace as
necessary i.e. if damaged or wom
h) Place the thinner Thrust Washer over the stem of the Valve, followed by the Spring
and then the thicker Thrust Washer.
i) Take a new Distributor 'U' Seal, lubricate with 'Fomblin' IJTI 8 grease, fit to the
special lilting sleeve and place the sleeve over the valve ~'tern.
j) Check that the PTFE 0-Ring is fitted to the Interlock lllock then position the Block
over the fitting sleeve with the pointer 10 the front.
k) Carefully press downw.irds on the Interlock Block and hold ii in place whilst fining
and folly lightening the six ( Four MS and two M4) retaining screws.
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A E SERVICES
I) .Ensure that there is sufficient Fomblin UT 18 grease on the SI ip Ring and replace.
Grease the Pivot Cam as required wi lh Fomblin Url 8 grease and then fit over the
Rotary Valve spindle into the Interlock Ulock. Ensure that the retaining Ring is
adequately lubricated with Fomblin UT 18 grease and fit into the Interlock Block.
Secure the Retaining Ring with the three M3 screws and Clamp Tabs, carefully and
evenly tightening down in position.
Lin-up keyways in Cam and Rotary Valve then fit the Woodruff Key.
m) F.nsure that there is sufficient Fomblin UT18 grease on the Pl al form and Pi vol Arm
assemblies and r~fit the Interlock assembly.
Secure the assemblies with two M4 screws, tightening down in position hul ensuring
that there is minimum clearance between the Pivot Rearini,rs and Pivot Ann.
nJ Check that Spring is in position then re-Iii Stop Rel~ Hutton. Check that Clicker
Plungers and Springs are in position and re-fit the Dial Assembly, securing with three
M3 screws.
oJ Install the Top Cover Plate, securing with two M4 screws. Install the Lock/Unlock
Knob Bu.<,h on the J,ocking Lever Spindle.
lm,1all the Lock/Unlock Knob and secure with one M3 screw.
Nole that the Lock/Unlock label may be fitted after the Final Test al the Final
Inspection stage.
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AESERVICES
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Figure I Dial As..,embly
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Figure 2 Dial and Stop (:ontrol
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Tee 4 Vaporizer Service Manual
Section I
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Page 8 of 18
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AE SERVICES
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Tee 4 Vaporizer Service Manual
Section I
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.Page 9 of 18
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AESERVICES
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Tee 4 Vaporize.- Service Manual
Section I
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AESERVICES
2.7
SUMP ASSEMBl,Y (figure 6, Page 13)
NOTE. The vapori7.er shal I have been dr.1i11ed, dried-out and Max. tested prior to the
commencement of this operation.
a) Remove the self-adhesive Keyed Filler label and unscrew the two M3 screws
which retain the liller. ff a keyed filler is fitted, can: must be taken to ensure that
the Filler BaJI is not misplaced
Remove the Filler Assembly and place to one side.
h) Invert the vaporizer. Remove the lour M5 Pozi screws and remove the Outer
Cover Rase and Heat Pad then lift off the Outer Cover. Place all components to
one side for subsequent use.
c) Cut and remove the Tesa tape to release the Support Plate. Discard the old Tesa
Tape.
d) l lnscrew and remove the li.1ur Sump Studs and Washers.
Lift off the Sump Assembly with 0-Ring. Lift off the Outer Wick Assembly.
Renew the Outer Wick, ,;ecuring with cotton twine.
2.8
SF.Ml' AND WICKS (1'"igure 6, .Page 13 and J<igure 7, Page 14)
2.3.1
Disassembly
a) Remove the self-adhesive label from the Filler.
b) Unscrew the two M4 x 35 Socket Cap Screws which secure the Filler Body
Assembly to the Sump, remove the Filler Body and the twu PTFE seals.
Note On the Keyed Filler, a 4 mm Nylon Ball is located between the Filler Body
and the Sump. When removing the Filler Body, take care not to Jose the Ball.
c) Slacken lhe three M4 x 6 l lexagon Socket Set Screws which are used to Iift the
Heat Pad up to the Sump Base.
d) Unscrew and remove the four MS x 16 Po:li Pan Head Screws in the Outlet Cover
Base and remove the Rase and the Heat Pad.
e J Slide off the Outer Cover.
I) Remove the Sl!jlpOrt Plate (if fitted) which is secured to th.e Sump Studs by
adhesive tape. Check that the two Sump Stud.~ at the rear or the unit are or the
'waisted' type. If nol, dispose of them and fit the latest type during re-assembly
g) Remove and dispose ol'the Wicks.
i) The Outer Wick is attached with thread to the Spiral Support The Inner Wick
is attached with thread to the lnncr Wick Support Assembly.
ii) Unscrew the two M3 x 5 Pozidrivc Screws and remove the Non-Spill Cup.
The Non-Spill Cup Wick is attached with thread.
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AESERVICES
h) Remove the four M4 x 10 Cheese l lead Screws at1d remove the Jnner Wick
Support Assembly complete with Thermostat Cover Assembly. Clean the external
surfaces with Elecsol FD or similar cleaning agent.
i)
Note: This next procedure only needs lo be carried out i r Lhe vaporizer has not
been sen, iced in the past three years.
i)
Inspect the Thermostat for signs of corrosion and damage.
ii)
Clean the Thermostat by blowing through with clean compressed air at
210 kPa (30 psi) maximum.
iii)
Check the Thennostat restriction as detailed in Section XX.
iv)
Fit a new ()-Ring to the Sump Cover face.
v)
Relit the Thermostat and secure with two MS x 16 Screws and spring
Washers. Fnsure that the screws are runy tightened
j) Fit three new O-Rings lo the Inner Wick Support Assembly, then refit the
Assembly.
2.8.2 Assembly
a) Fit the Jnner Wick onto the Jnner Wick Support Assembly, ensuring that the cut-
out holes are aligned with the holes in the rivets. Secure with cotton thread.
b) Lay the Non-Spill Cup Wick. across the Cup mid secure with cotton thread. Fit the
Non-Spill Cup into the Baille and secure with two M3 x 5 Pozi-Drivc Screws.
L:) Fit the Outer Wick onto the Wick Support and secure with cotton thread.
d) Fil the Outer Wick Support over the Inner wick Assembly.
Nole: This may he made easier by first wrapping a thin film of plastic, for
example Mylar, around the Tnner Wick Assembly to form a sleeve, then sliding
the the Spiral Wick Assembly over the sleeve onto the Suppon and then
withdra\l,ing the sltieve. A paper sleeve may be used instead of plastic but care
must he taken to ensure that the paper does not tear when the paper is withdrawn
leaving paper sandwiched between the Wick and the Spiral.
2.8.J
Sumu <:leaning.
Clean the inside of the Sump using Llecsol FD or a similar a cleaning agent .
2.8.4
Hnal
Fil a Locking washer to each Hexagon Stud as illustrated (sec Hgurc XX).
Fit a new O-Ring to the Sump Assembly. Attach and secure 1h1: Sump A,,;sembly IO
the Sump Cover using the four Hexagonal Studs, ensuring that no strands of wick lie
across thi;: 0-Ring located between the Sump Cover and the Sump.
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'foe 4 Vapori:,.er Service Manual
Section I
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Revision 7
AESERVICES
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Figure 6 Sump Assembly
Tee 4 Vaporizer Service Manual
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Page 13 of 18
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AESERVICES
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NOTE. The knot must be outside of the Inner Wick and in a position where
the 1,ansler holes are not obstructed. It must also be of a si7.e which does not
restrict fitting of the Spiral Wick /\sscmbly.
Figure 7 Wick Renewal
Tee 4 Vaporizer Service Manual
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2.9
TllliRMOSTAT
N.B. This procedure needs only lo be perfonned if the thermostat is found to he in
need of adjustment during calibration.
a) Unscrew the four M4 slolled head screws which secure the Inner Wick Assembly
and Iifl off the assembly together with the three 0-Rings. Place to one side for
subsequent use.
b) Obtain a replacement Thermostat of the correct type and record the number or 1hc
new thennostat on the te~1 sheet. Staple the thermostat tesl recoTd to the vaporizer
test sheet. Secure the thcrmostal to the Sump Cover usiug the two M5 Pozi screws
and wa~hcrs.
c) Secure the Inncr Wick As:,em bly to the Sump Cover using the lour M4 slotted
head screws, ensuring that the lhrcc 0-Ring.~ are in place and that the Wick is
correctly orientated.
d} Invert the vaporizer.
Wrap greaseproof paper round the Inner Wick Assembly and slide the Spiral
Wick Support into posilinn over the Inner Wick, ensuring that the paper has nol
hcwme tom and that the Inner Wick is not crumpled into lhe spiral.
Note that the leg of the Spiral is positioned at the bottom of the Sump
e) Fit the Sump Assembly over the Wick AsSt"mbly ensuring that the Sump ()-Ring
is in place. Secure lhe Sump to the Sump Cover with the four Sump Sluds.
f) Secure the Support Plate in position on the Swnp .Studs wilh Tesa Tape adhering
to the sides of the Sump
g) Fit the Ouler Cover over the Sump Studs.
Position the Heat Pad on lhe base of the Sump Assembly. Fit the Outer Cover
Rase into position on the Outer Cover and secure to the Sump Studs with the four
M5 Pozi Pan Head screws.
Secure the Heat Pad to the Sump with the three M4 G11.lb screws in the Outer
Cover Base.
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Tee 4 Vaporizer Service Manual
Section I
Page 15 ofl8
Revision 7
A E SERVICES
2.10
fll,LER ASSEMBLIES
2. lll. I
Keyed Filler Assembly (Figure 8, Page 17 )
a)
Inspect the Level Tube. If il is an ~.irlier type, which incorporates a single
black band, remove it and tit the later type which has two black band<. and
tv.-u triangles.
b)
When filling the new Level Tube, fit two new Seals and ensure that the black
marked hand,; and lriangles are towards the front face of lhe filler and that
both are in the botlom half of the opening in the .Block.
c)
Fil a new 0-Ring to the Level Tube Plug. It is ne1.-essary to stretch the O-Ring
over the thread and then to compress it into the groove.
d)
Unscrew and remove the three M2.5 x 6 Screws which secure the Spool Valve
Cam. This operation is easier if the Knob is turned fully counter-clock wi~e lo
open the Valve.
e)
Remove lhe Spool Valve from the Filler Body. Fil three ne\v seals on the
Spool Valve using a 2 mm tommy-bar to unscrew the Piston End.
f)
Remove and dispose orlhe Filler Valve Seal, as illustrated. Apply a jet or
clean, di:y, compressed air to lhe porlS at the rear of the Filler Body to remove
any foreign matter.
gi
Fit a new Valve Seal as illustrated and then carefully refil the Spool Valve
into the Filler Body.
2. I0.2
Screw Cap Filler Assembly (l'igure 9, Page 17 )
a)
Inspect the Level Tube. If ii is an earlier type, which incorporates a single
black band, remove it and fit the lalcr lype which has two black bands and
lwo triangles.
b)
When fitting the new I .evel Tube, fit two new Seals and ensure that the black
marked bands and lriangles are towards the front face of the filler and that
both arc in the bottom hal r or the opening in the Ulock.
c)
Fit a new O-.Ring to the Level Tube Plug. II is necessuy to stretch the O-Ring
over the thread and then to compress it inlo the groove.
d)
Unscrew and remove the Filler Plug and the Drain Valve Spindle Assembly.
e)
Apply a jct of clean, dry, compressed air to the ports at the rear ofthe Filler
Body to remove any foreign matter.
I)
Fit a new Seill Ring to the Filler Plug and
lit the Filler Plug into the Filler
Body.
CONTROLLED DOCUIIIENT
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Section I
Page 16 of 18
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AESERVICES
· t•H.'.:
;.1 ,'.I
t·igure 8 Keyed Filler As~mbly
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J.'igure 9 Screw Cap 1-·mer A~sembly
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AE SERVICES
2.11
FINAL ASSEMBl,Y
a)
Fit lhc Support Plate and secure with adhesive tape. Fil the Outer Cover over
the Sump Assembly.
b)
Fit the 1 leat Pad and Cover Base and secure lo the l lexagon Studs with four
MS x IO Po:ti-Drive Screws. F.n,sure that the Cover base docs not interfere
with Lhe Filler Uody. If it docs, fit the latest type ,vith cut-outs.
c}
Screw in and tighten the three M4 x 6 Socket Sel S1.-Tews to I ift the Heat Pad
up to the Sump Base. F.nsure that the Pad is in firm contact with the Rase.
d)
I-it and secure the Filler Assembly to the Sump using new seals.
On the Keyed Filler only, check that the 4 mm Ball is in position.
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SECTION2
LEAK TEST
REVISION: 2
OATE 14.03.01
AUT.HORISl\TION:-
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AESERVfCES
SECTION2
MK.4 VAPORIZER LEAK TEST
VAPORIZER SHOULD CONTAIN NO UQUJD AGENT FOR LEAK TEST AT 'ON'
I) Connect Vaporizt.T into Leak Test circuit (Figure I).
2) Turn the vaporizer on and set the dial to 3%
3)
Open the line adjustment valve to pressurize the circuit to 200 to 220 mm Hg and
allow the pressure reading to sLabilize. Note the pressure reading.
4)
Start the timer and after 30 seconds check the pressure drop.
The maximum allowable pressure drop in 30 seconds is 4 mm Hg.
5)
I rthe pressure drop is outside the accepted toler.mce, return the vaporizer to the
seivice bench, locate the source of the leak using a suitable brush and leak test
fluid, rectify as necessary and repeat the leak test.
6)
I Jpon completion of a satisfactory leak test, reeord the press urc drop on the
appropriate Service Record together with the date and relevant signature.
7) Disconnect the vapori;ter from the Test Circuit.
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AESERVICES
Pressure Gauge mm I lg
OUT
IN
Blank off Outlet with
Adjustment Valve
a Taper Fitting
Vaporizer on Test
2.5 Litre Reservoir
.FIGURE 1
LEAK TEST CIRCUIT
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Tee 4 Vaporizer Service l\1anual
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Rel•isinn 2
A E SERVICES
SECTION 3
MAX. TEST
REVISION:-2
OA TF.:O Ul5. 95
Al JTHORISATION:-
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AESERVICES
SECTION 3
MI\X TFSI PROCEDURE
Connect the vaporizer into the test circuit as sho,m in Figure I.
Pass a llow of 5 litres/min. Air through the circuit.
Tum the vaporizer to iL'> maximum percentage mark. Mainlain rringes lined up and after
approximately 30 seconds or more note refractometer reading.
Mcaswcd percentage when establishing dryness should not exceed 0.01% anaesthetic agent.
lfthe measured percentage is more than 0,01 % the vapori:,.cr must be subjected to a further
drying out cycle • see Se(..'tion I.
Flowmeter
Pressure
Regulator
F_A Valve
F.A. Valve.~-~
Vacuum
Pump
Exhaust
to Room
50-500cc/m
Flowmeter set
500 +/- 50 cc/m
>
.Exhaust
TEST ARl.l..\.NGF,MF,NT
HCURE I
Vaporizer
l
CONTROLLED DOCUMENT
(
J.... .-• .,...... ~.~ ..... • - - - . . - - -...,. ......_ ........,.-••••
Tee 4 VaporiT,.er Service Manual
Sc~-tion 3
Page2or2
Revision?
AESERVICES
SECTION 4
CALIBRATION TESTS
REVISION:-3
DA TE; 28.02.2001
--
AUTHORISATION:- ~.....tik_' _
,···-;
COIIITROIJ.EO DOCUMENT
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1
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'fee 4 Vaporizer Service Manual
Section 4
Paget of 4
Revision 3
AESERVICES
SECTION 4
CALIBRATION TESTS
NOTE The8c pn,cedurC$ arc applicable to all Tee 4 vaporizers.
'fhc Setting Up and use of the Laser Rel'ractometer ill facilitated through a I .aptop
Computer which has spttial 5oftwarc in~tallcd.
SETllNG UP PRCK:EDIIRE
Plea.,e refer to lhe Operating Instructions for R & B Instruments Prccisioo and
Portable Rcfractomdcrs.
r
CONTROLlED DOCUMENT
, . . . . . . . . . . . . . . . . . p . . . . . . . . . . . . . ., .• • •~ . -. . . . ., . , ~ , , . . . . . . .
Tee 4 Vapori;i:er Sen-ice Manual
Section 4
:
.
Page2of4
&vision3
AESERVICES
VAPORIZF.R TESTING PROCl:DllRE
NOTE These procedures itrc itpplicable to alJTec 4 Vaporize.rs.
1 Prior lo the !llart of testing, fill the vapori:,.cr(s) to the 'l;ull' mark and leave to stand in
the Testing Department for a minimum of 1 hour.
2
Place a thennomeler on the upper part of one of the vapori:r.crs in the batch which is to
be test1.-d.
3
Install a vaporizer on the test rig. making sure that it is properly loch-d i.n place.
4 Carry out the te5t routine as ddaik-d in Scdiun 2.3 of the Operating lnstructionll for
the Portable Refractometer and print a copy of the resuUs/test certificate.
S Check the tei1t result~ against the tolerances given for the relevant vaporize-r in this
section or io the appropriale WaU Chari i.e. AEQW-003 (See Seclion 11)).
6
If the vaporizer ha.~ passed all the calibration tests, mark a 'T', in black felt-tip pen, on
a self adh 1.-sivc label stuck tu the top face of the Interlock Block and place the vapori:r.cr
on the trolley for drying-out
CONTROLLED DOCUMENT
Tee 4 Vaporiur Service Manual
S«tion 4
Pagel of4
Revision 3
AESERVICES
DlAI, SlffTINGS 1''0R TES'flNG TE<: 4 VAPORIZERS
TSOl'l.l;RANF.
50/4
5%
ENt'LllRANE
S'Y•
F.NFI ,IIRANF.
70;.
0
0
0
OFF
0.5
0.5
0.2
o.s
J,0
1.0
0.4
1.0
2.0
2.0
0.6
2.0
J.0
3.0
1.0
J..0
4.0
4.0
1.S
4.0
5.0
5.0
2.0
5.0
3.0
6.0
4,0
7.0
HAT.OTHANE
.,, .., ..
,...
.... , .. , .. ,, .,,,.......... ,
/..... .':~~~~~2_DOCUMENT __j
Tee 4 Vaporizer Service Manual
Section 4
Page4 nf4
Revision 3
A E SERVICES
SECTION 5
CURRENT DIAL STRIPS
REVISION: 0
DATF.: 14.03.01
AUTHORISATION~~
,r ........... ·- . ······" -· - ·····--
CONTROLLED OOCUMEITT
Tee 4 Va11orizer Service l\fanu11I
Section 5
. ·---
Page I of2
Revision 0
A E SERVICES
Dial Strips
A li~t of c urrent Dial Stripll together with t heir variation for es.ch spllCific Vaporizer
is given ac<1 follows:Vapo r i,:c,r
Type
Ma:1
%
Dial Strip
Part No.
Calibration
Va riation
Marked
H aloth anc
5
2400-0022/f A
2400-0022/A
2400-0022/A2
2400-00?2/l 'B
2400-0022/B
?400-0022/B l
l400-0022r rc:
2400-0022/C
2400-0022/C:2
2400-0022,/1)
2400-0022/0 2
JJii:best
Yes
Yes
Yes
lsotlu ra ne
Enflurane
.F.nOu rane
5
5
7
2400-0022f fB
2400-0022/B
2400-0022/B2
2400-0022/ fC
2400-0022/C
2400-0022/CZ
2400-0022/D
2400-0022/0 2
\'l,"S
Yes
Ye s
Ye,
Vcs
\'es
V1.-s
Yes
Low~-cst
Highest
Ye,
Vn
\'es
y~
Ye s
Yes
\'e s
Ve:s
l .(Jwest
2400-0022N 7A Jl.ii:tiest
2400-0022/Y6A
2400-0022/YSA
2400.0022/ \' 4A U,w ec<1 t
2400-0022/J 7
2400-002 2/.J7B
2400-0022/J 6
2400-0022/.168
2400.0022/J S
2400-0022/,15 8
2400.002,2/J 4
2400-0022/.f4(:
Highec<1t
2400-002l/J3C
Lowest
Tee 4 Vaporir.cr Service Manual
Section 5
\'es
Yes
Y es
Yes
Yes
Y.cs
Y es
Yes
Yes
______ __DOCUMENT
___ ......
:"- .. , CONTRoi:""i..eo
Ye:-1
Yes
Yec<1
,..,
Vcs
...l
___..
:
Page2 of 2
Revi~ion 0
A E SERVICES
SECTION 6
TEST TOLERANCES
REVISION:- 0
DA'fE: 14.03.2001
AUTUORISATION:-.., ~ -
COITTROUED DOCUMENT
Tee 4 V,iporiur Service Manual
Section 6
P11gc I ofS
Re\lision 0
AESERVICES
Tee 4 Enfluratec 7%,
Room Temperature Tolerances (22°q
Table give§% v/v
Enfluranc in air
Dial
Mio
Max
0.50
0.4!'.
0.90
1.80
2.70
3.60
4.50
5.40
6.30
0.!1.5
1.10
2.20
3.30
4.40
5.50
6.60
7.70
1.00
2.00
3.00
4.00
5.00
6.00
7.00
Elev11ted Temperature Tolerances (3S6 (:)
l'able giVl's % v/v
En Du rane in air
Dial
Min
Max
o.su
0.4S
0.90
).80
2.70
3.60
4.50
5.40
6.30
O.S8
1.10
2.20
3.30
4.40
5.50
6.60
7.70
1.00
2.00
3.00
4.00
5.00
6.00
7.00
Tl~ 4 Vitpori:r.cr Service Manuitl
Section 6
Page 2 ofS
Revision 0
AESERVICES
Tee 4 Enfturatec 5%
Room Tcmpcrotturc Tolerances (22'tC)
Table gives% v/v
Enflurane io air
Dial
)tio
Max
o.oo
o.4o
0.00
0.1 U
0.05
0.30
o.30 o_c;o
0.60
J.00
1.50
2.00
0.50
0.85
1.40
1.80
0. 70
I.IO
).70
2.20
0.20
J.00
2.70
3.30
4.00
5.00
3.60
4.50
4.40
5.50
Elcvaled Temperature Tolerances ( 35oC)
'fable gives % v/v
EnOurane in air
Min
Max
0.00
0.00
0.20
0.40
0.60
1.00
1.50
2.00
3.00
4.00
5.00
0.18
0.36
0.54
0.90
1.35
l.llO
2.70
3.60
4.50
0.02
0.22
0.44
0.66
0.10
1.65
l>ial
-
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i
., , ...
Tee 3 Vapori:rA:r Service Manual
Seclion 6
2.20
3.30
4.40
5.50
·="'''"· ~.~·. ,,,..
CONTROLLED DOCUMENT
:
.•.. --.--•·-·---···---'
Pagel of5
Revision 0
AESERVICES
Tee 4 lsotec 5%
Room Temperature Tolerances (2211C)
Table gives % v/v
lsoflurane in air
Dial
Min
Max
0.00
0.50
t.00
2.00
3.00
4.00
5,00
0.00
0.35
0.85
1.80
2.70
3.60
0.05
0.60
2.20
3.30
4.40
4,SO
5.50
I.IO
Elevated TemperatureTalerance§ (3511C)
Table gives % v/v
lsofturane in air
Dial
Min
.'\,lax
0.00
0.50
1.00
2.00
3.00
4.00
5.00
0.00
0.45
0.90
1.80
2.70
J.60
4.50
0.05
0.55
1.10
2.20
3.30
4.40
5.50
:t .... _
CONTROLLEO
_ _ _DOCUMENT
_ _ _ _.,.,:
Tee 4 Vaporizer Service Manual
Section 6
Page 4 of 5
Rcvision0
AE SERVICES
Tee 4 Fluotec 4 o/., & 5%
Room Temperature Tolerances (22°C)
]'able gi'l'e.\ % v/v
Fluothanc in air
Dial
Min
Max
o.so
0.35
0.85
l,RO
2.70
3.60
4.50
0.60
1.10
1.00
2.00
3.00
4.00"
5.00
2.20
3.30
4.40
5.50
'"(Fluotec 4% maximum dial !letting)
Elevated Tem11eratun:Toforanccs (JSOC)
'fable gives % v/v
l<'luothane in air
Tee 4 VaporiT.cr Service .Manual
Section 6
Dial
!\'Jin
Max
0.50
1.00
2.00
3.00
4.00
5.00
0.4S
0.90
I.SO
0.55
2.70
3.60
4.50
I.tu
2.20
3.30
4.40
5.50
PageSofS
R1.-vision 0
AESERVICES
SECTION7
FINAL INSPECTION
REVISION:- 2
D/\TE: 20.07.95
i.......... ...CONTROLLED
__.._......_....,, .........DOCUMENT
_......,•..
,
Tee 4 Vaporizer Service J\.fanual
s~~tion 7
~.,..,..,,
.,,;
Page I of2
Rl-visiun 2
AESERVICES
SECTION 7
Final lnspcdion Procedure
I . Examine test sheets ensuring all tests have been completed, and that an authoritative
sih'llature is recorded in the QA Approved box.
2. Ta<..-tile Tests:-
a) Operate the Lock/Unlock lever lo check for free action and Ihat the return spring is in
place.
b) Check that the vaporizer can only be turned on when the Loek!U nlock I .ever is in the
'Locked' position
c} Tum Vaporizer dial fully clock wise and anti-clockwise ensuring that there is no undue
resistance and thal the 'stop' control functions correctly.
d) Turning the vaporizer on and off check visually thal both interlock rods oper.tle correctly
e) Examine the Key Filler bridge to confinn that it i~ correct.
Where a 11roduct does not couforDl at a),b),c),d) or c) this shall be brought to the
attention of the Service/fest Supervisor who shall dttidc ori the appropriate
course of action.
J. Thoroughly clean the vaporizer.
4. When cleaning is completed, ensure that a Serial Number Plate is titted and record
the serial mwibcr on the Test Sheet. Write the date andior sign the Final Inspection and
QA boxes of the Test Certificate and Test Recurd.
5. Attach sci f adhesive labels to the vaporizer as n,quired
6. Check that all labels are correct i.c vapori;r.er lype, agent type, and thal they are fitted in
the correct positions.
7. Place the cleaned and labeled vapori7er in a polythene bag.
__
___ _
T<.-c 4 Vaporizt-r Sen-ice Manual
Section S
~
l,,.,_-DOCUMENT·---,
....__CONTROlLED
,_,.,.............,.,
... ...
Pagel of2
ltevisiou 2
A. E. SERVICES
SERVICE MANUAL
TEC 4 VAPORIZERS
:::,,.,-<;·t
·,'
''
;f
Tiu~ word• Tee and Selectatec are registered trade marlcs ofJJatcx-Ohm,xla
Tee 4 Vaporizer Service Manual
A E SERVICES
TEC 4 VAPORIZER SERVICE MANUAL
AEQM-04.1
DOClJJ.\tENT LIST
SECT
DESCRll'TION
REV
t>Al'.t;
Standard Service Procedure
7
14.03.01
2
Leak Test
2
14.03.01
3
Max. Test
2
0105.95
4
CaJibration Tests
3
28.02.01
5
Current Dial Strips
0
14.03.01
6
Test Tolerances
0
14.03.01
7
Final Inspection
2
20.07.95
!!
Thermostat
2
14.03.01
9
Appendices
0
14.03.01
10
l'or Future Use
Ali'T110RIS4TJON
. @2
...3%
)
r--1
£.._,..,,.coNrR01.Liii
___,..,,...• , .. -····· iiocuMENT
.........__.._ ...•
..-,
Tee 4 Service Manual
AESERVICES
SECTION 8
THERMOSTAT SERVICING
AND SE'ITING PROCEDURE
REVISION:- 2
DATE: 14.03.01
CO,.TROUED DOCUMENT
T1:e 4 Vapurilf.er Service Manual
Section 8
Pagel of JO
Rcvi5iun 2
A ESERVICES
Section 8
Thermostat Servicing and Setting Procedure
NOTF.:
Thennostats covered hy this procedure ,,.;11 have been removed from
Va.pori7.ers due to perfonnance failure.
Clean off residual shellac from thermostat ac!justing and minim um stop .~crews.
NOTF.:
It is not necessary to remove all traces of shellac, just loose particles
that may detach as thennostat screws/nuts are adju~-ted.
2
Open flapper with fingers, hold up to light source, and examine area
between tlappcr and thermostat body for dirt or dust particles.
Whilst still holding Happer open, blow clean air, using air-I inc gun, through
thermostat via inlet hole. RE-EXAMINE.
3
Segregate thermo.stat types i.e. 'F.' Enll uratec and 'F' Fluoteci1sotec
Using g-duges TOI and 102, check the effective length as appropriate (TOI)
F-~24.5 mm. and (T02) E~ 28.3mm.
4
Nole that this step is only performed if the thennostat spri11g hinge is suspected of
being deformed, as indicated by instability on setting or very low resistance.
Remove the two Po.zi HD screws securing the leaf spring and one clamp plate.
Detach the spring hinge from the flapper by removing the two cJsk Pozi HD
screws. Fit new hinge to napper and secure, ensuring hinge: is square to flapper.
Position flapper assembly. onto thermostat body and fit clamp plate and lear
spring, secure loosely using two Pozi pan HD screws.
Set hinge gap using tool (T03) and secure flapper and Jcar spring assembly
square lo the thennostat body by folly tightening the two Pozi pan HD screws.
,.... CONTRCiLeo uocllMENT
l
• • .. ··--- ,...,, ...,____, ~•• - ........ -._ ...... a
Tee 4 Vaporizer Service Manual
Seclion 8
Pagc2of lO
Revisiou 2
AE SERVICES
Thermostat Setting T'roccdure
Ocaning:
Before installing thermostats onto lo lest racks, visually check between flapper
and thcnnostat body for din panicles, blowing through with an air-line to clear
passages.
Poli5hing:
Using a wad of clean paper inserted between the adjusting screw and Bi-metal
strip, polish the adjusting screw end by rubbing lhe paper wad vigorously
backwards and forwards (approx. 15 times.) (Re-new paper wad frequently
a:; it becomes dirty or worn).
Racking:
Install thcrmostaL~ (of same ly~) onto rc1cks ensuring "O' rings arc correctly in
place (in the test racks).
Place racks aside for 24 hours to allow temperature to stabilize.
Protect from dirt particles ·with polythene sheets.
Setting:
Ensure that the room temperature is stable at 22°c +!- I 0 c be lore attempting to
~et any thermostat. Monitor thermostat tempen1ture using a thermometer inserted
into one of the no7.7.les of each test rack .
---·--····
............
_,.................... '
L--~TROU.ED DOCUAI_~~- __ j
'fl'C 4 Vaporizer Service Manual
Section 8
Page 3 of 10
Revision 2
AESERVICES
.•
:
.' '
•,
r:=
(t'IGll.RE 1 Thermostat Test Arrangement
T1:e 4 Vaporizer Service Manual
Section 8
f
COHJROWOiiiicuMENT-·
,.--.....c............. ........_ .,.~·-····,,
1_,_ __....,...
Pagc4of 10
Revision 2
AE SERVICES
-.._
.;/·
!
...•
·:
!
FIGURE 2 Thern1ostat Assembly
T1.~ 4 Vaporizer Service .Manual
Section 8
r·
CONTROLLED DOCUMENT ,.,..,_
'---------·•--···-·,.•~•:
Page S of 10
R1.-vision 2
A ESERVICES
Minimum lt"low Stop:
a)
Adjust the air flow to 5 Litres/Min without a thermostal in circuit.
Ensure lhal water manometer indicate:, 7ero.
b)
Back-ofTthcadja<.ting screw Sil lhat il is clear of the bi-metal ~1rip.
c)
Connect air supply to nozzle of tcsl rad and adjust llow/tempen1ture stop
(minimum stop) so that the indicated pressure is between
38 and 44 ems water.
d)
Tighten lock-nut then re-check pressure reading.
e)
Re-adjust as necessary
f)
Record date, pressure, and temperature on AEQF-l0.7.1/4.
Ma.1imum Flow Setting:
Chtie.k the temperature indicated by the thermometer inserted in the noale
of the test rack.
Adjust setting screw to obtain a manometer reading at a !low of
5.0 litres/min air in accordance with tolenmces.
Tighten lock nut.
Record date, pressure and temperature on AF.QF-10.7. li4.
Stabilitv:
The thermostat is a relatively dcl icale instrument and the stability may be
impaired if the unit is roughly handled. Alternatively. thermostat
ins tahi lity can he caused by dirt or dust. Slabili Ly is usually restored by
careful and thorough clia:aning and, if necessary, re-polishing of the
bearing surfaces.
a) Maintain air flow at 5.0 Litres/Min to the thermostat.
b) Observe pressure reading on Manometer.
c) l !sing a finger, apply a moderate force against the head of the setting
screw for approx. I sec then release finger. Check that the pressure has
not altered from its original setting by more than approx. 1.0 cm water.
Record date, pressure, and temperature on AJ::QF- l 0.1. 1/7.
d) Similar to (c) but instead, open flapper by pulling at head of adjusting
screw and releasing after approx. I second.
Record date, pressure, and temperature on AEQF-10.7.1/4.
e)
rr the 1hermo~1at fails the 'push/pull' tests reject thermostat and segregate
for recti rication .
Tee 4 Vaporizer Service Manual.
Section 8
~--- -
. .._.. ··- _, ..__,,.,,, ·- ... ,.~.. ··- .. .. - . --~
1---· .........
CONTROLLED DOCUMENT
.. ··--•-.-.-.-..., ...-,.....":'"'.,,...,......,~;
_
l>agc6of lO
Revision 2
AESERVICES
Final Check:-
A final check on the thermostat setting shall be carried out prior to
installation in the vaporizer.As follows:-
1)
Ensure temperarure is within permitted tolerance.
2)
Set manometer to zero. Air-flow at 5 litres/min.
3)
Pass 5 litres/min through thermostat.
4)
Check pressure reading to tolerance chart.
5}
Record date, pressure, and temperature on AEQF-10.7.1/4.
6)
Apply shellac lo low temperature stop and sctli ng screws.
:··-~, cOHTROiieoDOCUMENT---~;
__
'··········••··· ..•..,-.,.,.,_. .,_ "'~-----··/
Tt.-c 4 V11porizcr Service Manual
Section 8
Pagc7of lO
.Revision 2
A E SERVICES
·rec 4 Vaporizer
l•iller
Thermostat Type
Enlluratcc 5% -
Screw
J:::thrane
EnJl uratcc 7% -
Screw
Ethrane
F.nflur.1t.ec 5% •
Keyed
Ethranc
Enfluratec 7% -
Keyed
Ethranc
Fluolec 5%-
Screw
Fluotcc
Fluotec4%-
Screw
Fluorcc
Huotec 5%-
Screw
Fluot.ec
Fluotee5%-
Keyed
fluotec
lsotec 5%-
Sci-ew
.Huotec
lsotcc 5% -
Keyed
fluotec
--··---- ............... ·-· --·- .... ~···-· ···-
CONJROLI.ED DOCUMENT
··- ........
-.... ···----·-··----..---····· .'
~
Tee 4 Va1mri:.r.er Service l-1anual
St-ction 8
l'age 8 of 10
Revi~ion 2
A E SERVICES
TOLERANCES FOR HALOTHANE THERMOSTATS
Temperature
Temperature
oc
---
OF
cm H20
30.3
32.7
19.2
66.5
29.3
31.5
19-4
67.0
28.3
30.3
19_7
67.5
27.5
29.3
26.0
28.3
25,4
27.5
24.8
···-·
.,
26.7
68.5
26.0
69.0
25.4
20.R
69.5
24.8
21. I
70.0
21.4
70.5
21.7
71.0
20.6
.,.
....
·-·· .. -·- .......
··--·-·
21,9
-··· .... ··--·-·
-·-··
.. ...., .
68.0
.. ·-.
20.J
•...... -·····
. ···- - .
..... -
7l.5
.. ··--
- ..
.,
---
28.2
..
26.7
26.7
, ...•....
27.5
.. -
26.0
...
24.2
.....
23.6
24.2
25.4
23.6
24.8
23,0
24.2
22.5
21.6
22.1
23.6
--· . ,
23.0
23.0
-·- ···-·-·-
22.5
-
22.1
-··· . ··········--
22.2
72.0
22.5
72.5
21.6
22.5
20.8
22.8
73.0
22.1
20.5
23.1
73.5
21.2
--·· . . ---·
20.8
21.6
20.1
74.0
20.5
........ -.
21.2
74.5
20.l
20.8
19.8
--··
19.4
75.0
19.8
20.5
75.5
19.4
20.1
76.0
19.1
19.8
. , .. -·-····
···-- ··-···
·- ~--
23.3
-
Minimum
cmH:0
66.0
20_0
1--··
Maximum
cmH20
llUI
...... --·- .... ·--· -·-
-···· ·······•· .......
~
Nominal
23.6
....--.- ... , __
23.9
24.2
.,
24.4
····-·- .. ~-· ..
-· . ....
......
21.2
·--- ,.. . ·-··-·
··········
..
..
····-· .... ,.
·-
19.1
·--
......
18.8
18.5
r- · coiaio.::L.Eo oociir.i'ei.ir ---·!
• .... - - , · · · · · ~ ... .
·rec 4 Vaporizer Service M1mual
S"'-1:ion 8
• •.•....····- ·~- .. ,.,J
Pagc9of 10
Revision 2
AESERVICES
TOLERANCES FOR ENFLURANE THERMOSTATS
Temperature
·c
Temperature
l&.9 .....
19.2
-
66.0
...31.5
66.5
30.9
Maximum
cmH20
33.8 ...
31.4
27.3
30.2
26.5
273
29.2
25.7
68.S
26.5
28.2
25.0
69.0
25.7
27.3
20.8
69.5
24.9
26.5
23.6
21.1
70.0
24.2
25.7
23.0
21-4
70.5
23.6
25.0
21-7
71.0
23.0
24.3
21.9
71.5
22,4
23.6
21.2
72.0
21.8
23.0
20,6
72.5
21.2
22.4
20.0
21.8
19..5
-·
67.0
··-
19.7
....
20,3
~-·······
20.6
...... ,
.. - .
. ·-·-·
.. -
29.1
67.5
20.0
28.2
······
68,0
·- .,...
... . ..
-····· ..
..
. ··-
t-
.-
22_2
....
·-.
22-5
··-··
~
-·.
22,8
73.0
20.6
23.1
13.5
20.0
23.3
.....
-···· ......
74.0
23.6
74.5
23.9
75.0
24.2
75.5
24.4
76.0
-·---
.....
. ..
.,. -
I9.5
··-
19.0
·-·
18.5
.. ..
..
22.4
-· ···21.8
.. ,.
. ..
19.0
20.6
..18,5
20.0
18.0
..
17.6
19.0
172
17.6
18.5
16.R
CONTROU.El) DOCUMENT .
.....
-.
18. I
....
Tee 4 Vaporizer Service Manual
.. ··--
21.2
19.5
....
24.3
- .
·-··
...
(
Section 8
29.1
·-
28,2
-··
--·,
Minimum
em lliO
32.7
19.4
~
Nominal
cmH20
•F
-
;
Page toof 10
Revision 2
AESERVICES
SECTION 9
APPENDICES
.REVISION:- 0
DATE:- 1.5.0J 2001
AUTHORISATION:-__
Tee 4 Vapori7.er Service Manual
Section 9
Page I
RevisionO