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Lib
er

ors

Repair Procedures

XII

RP18 – Vent Valve RR (Figure 19)

a Remove shroud (See RP2).

b. Remove vent valve (Item 41) by unthreading valve nut while

supporting the valve to prevent it from turning.

c. Replace vent valve (Item 41). Tighten vent valve nut to 60–67

N-m (45–50 ft-lbs). Support the valve to prevent it from turn-

ing when tightening valve.

d. Replace shroud (See RP2).

RP19 – Twist Lock QDV Lip Seal RR (Figure 20)

a. Insert lip seal tool into Liberator female QDV (Item 15). Engage

tabs on tool with slots in retaining ring (Item 87).

b. Use wrench on hex end of tool. Push in on tool while turn-

ing to engage tabs on tool with slots in retaining ring (Item

87). Turn tool clockwise to loosen retaining ring (Item 87).

Remove the ring.

c. Remove lip seal (Item 88) from QDV (Item 15). Jeweler’s

screwdriver may be used if necessary, but seating surfaces

must not be damaged.

d. Apply thin film of fluorolubricant to new lip seal (Item 88).
e. Place retaining ring (Item 87) and new lip seal (Item 88) on

tool.

f. Install retaining ring (Item 87) in QDV body (Item15) by

turning tool counter-clockwise while pushing in on tool.

Torque retaining ring (Item 87) to 225–280 N-cm (20-25 in-

lbs).

RP17 – Warming and Breathing Coil Assembly RR

(Figure 19)

a. Remove shroud (See RP2).
b. Disconnect breathing coil (Item 49) by unscrewing the tube

nuts (Item 34) at the FCV (Item 24) and at the economizer

(Item 35).

c. Disconnect warming coil (Item 45) by unscrewing the tube

nuts (Item 34) at the economizer (Item 35) and at the mani-

fold.

d. Disconnect coils by snipping zip-ties (Item B) that hold them

to the top of the Liberator.

e. Remove warming and breathing coil assemblies by slightly

bending them outwards and pulling them up and over the top

of the Liberator.

f. To replace coil assembly, reverse above procedure.

WARNING

Liberator must be empty and vented before starting

procedure.

FIGURE 19:

Coil and Vent Assemblies

NOTE: Valve must be properly aligned to allow access to handle

through hole in shroud.

NOTE: Ensure static seal (Item 67) is not damaged and is in its

proper place.

NOTE: Lip seal may be changed on a full Liberator (Side Fill

Only).

Liberators Technical Service Manual • PN 13350704 Rev

Содержание Liberator G4 Series

Страница 1: ...Liberators G4 Technical Service Manual...

Страница 2: ...ic Rim Phone 770 721 7759 Fax 770 721 7758 Europe Phone 44 0 1189 367060 Fax 44 118 9799245 For Customer or Technical Service needs product assistance ordering part numbers specifications unexpected e...

Страница 3: ...ption of a condition that can result in equipment or component damage NOTE A statement containing information important enough to emphasize or repeat ITEM Item numbers used throughout this manual are...

Страница 4: ...ry of Operation 11 VII Unpacking and Setup 14 VIII Operation 15 IX Maintenance 17 X Troubleshooting 19 XI Troubleshooting Charts 20 23 XII Repair Procedures 24 XIII Service Tools Equipment Supplies 38...

Страница 5: ...tempera ture and regulates the flow of oxygen gas to the patient Any water that condenses on the cold coils is routed into the con densate bottle An economizer regulator is utilized to con serve LOX...

Страница 6: ...bar 23 2 psi 1 6 bar 23 2 psi Primary Relief Valve Reseat Pressure 1 4 bar 20 5 psi 1 4 bar 20 5 psi 1 4 bar 20 5 psi 1 4 bar 20 5 psi 1 4 bar 20 5 psi Secondary Relief Valve Opening Pressure 2 1 bar...

Страница 7: ...as Association as an oxygen concentration above 23 In an oxygen enriched atmosphere flammable items may burn vigorously and may ex plode Certain items considered non combustible in air may burn rapidl...

Страница 8: ...s are very low and are not likely to cause any interference in nearby electronic equipment RF emissions CISPR 11 Class B Harmonic emissions The Liberator is suitable for use in all establishments incl...

Страница 9: ...input output lines No data input output lines 1 kV line s Surge to line s Not Applicable Not Applicable IEC 61000 4 5 2 kV line s DC powered device to earth Voltage dips 5 UT 95 dip short interruptio...

Страница 10: ...nce level in each frequency rangeb Interference may occur in the vicinity of equipment marked with the following symbol NOTE 1 At 80 MHz and 800 MHz the higher frequency range applies NOTE 2 These gui...

Страница 11: ...2 3 P 0 01 0 12 m 0 12 m 0 23 m 0 1 0 38 m 0 38 m 0 73 m 1 1 2 m 1 2 m 2 3 m 10 3 8 m 3 8 m 7 3 m 100 12 m 12 m 23 m For transmitters rated at a maximum output power not listed above the recommended...

Страница 12: ...e is substantially higher than the Liberator operating pressure oversaturated 2 Saturation pressure of the liquid oxygen in the fill source is substantially lower than the Liberator operating pressure...

Страница 13: ...the bypass tee to the breathing coil the flow control valve and then the patient As the pressure in the container increases over 1 4 bar 20 psig the economizer valve opens and the cycle repeats mainta...

Страница 14: ...e meter is powered by an internal battery offering battery life of 5 years or more at 30 cycles per day The meter has a low battery LOW BATT indicator which signals the need for bat tery replacement T...

Страница 15: ...vel meter by depressing the operate button LEDs will light displaying the level of liquid oxygen If the unit is empty only the leftmost LED should light If it does not or if other erroneous indication...

Страница 16: ...transfer line adapter to transfer line d Fully open liquid valve on fill source e Purge transfer line for a minimum of 5 seconds ensuring gas is safely piped away from operator i Connect transfer hose...

Страница 17: ...tongs or tweezers 2 Wipe off the exterior of the unit with the cleaning solution us ing a lint free cloth The cloth should be damp but not drip ping Be as thorough as possible 3 Discard the cleaning c...

Страница 18: ...nual NOTE See the Troubleshooting and Repair section of the cor responding technical manual on the detailed procedures for the tests mentioned below 1 Visual Inspection a Remove any LOX prior to maint...

Страница 19: ...cator functionality d Presence of all required labels e Cryogenic reservoir damage dents dings f If LOX is still present in the unit inspect for heavy frost or condensation on the exterior of the unit...

Страница 20: ...mbly RR 31 RP18 Vent Valve RR 31 RP19 Twist Lock QDV Lip Seal RR 31 RP20 Twist Lock QDV RR 32 RP21 Push on QDV RR 32 RP22 Push on Portable Pop Off Assembly 32 RP23 Empty Unit 33 RP24 Warm Unit 33 RP25...

Страница 21: ...e QDVs are wiped clean and dry before filling b Dirty or damaged QDV poppet Replace the QDV cartridge RP20 or the entire QDV assembly RP21 5 Excessive venting from relief valves hissing sound a Satura...

Страница 22: ...ionsfor Excessive venting from relief valves hissing sound f Partial or complete loss of vacuum ConducttheNERtest RP32 andreturntheunittoCAIRE Inc ifnecessary 10 Unit will not maintain acceptable syst...

Страница 23: ...22 Liberators XI Troubleshooting Charts 8 Liberators Technical Service Manual PN 13350704 Rev K...

Страница 24: ...e Troubleshooting Chart Start at the upper left corner The top line shows the steps of routine maintenance Unless otherwise noted by the arrows the flow through the chart is down or to the right Liber...

Страница 25: ...attery WARNING Make sure the unit is empty and vent valve is open before replacing any component except shroud assembly compo nents or Lip Seals NOTE When assembling new compression fittings tighten 1...

Страница 26: ...n more accurate but re quires the dewar be vent full with LOX To start either procedure calibration mode must first be entered There is no need to per form both procedures for any given calibration Pr...

Страница 27: ...el 20 30 37 45 60 LED Min Max Min Max Min Max Min Max Min Max 1 17 6 20 6 22 0 24 7 22 7 27 9 24 9 31 3 34 2 38 1 2 20 6 23 5 24 7 28 9 27 9 33 1 31 3 37 6 38 1 46 3 3 23 5 26 5 28 9 33 2 33 1 38 3 37...

Страница 28: ...7 Range The new full cap value is less than empty cap value When calibrating full Empty unit and recalibrate TABLE 6 Calibration Errors TABLE 7 Operation Errors LEDs Name Reason Notes Solution 2 4 6 H...

Страница 29: ...e three bolts Item 31 that run through the FCV bracket Item 39 and through the manifold plate into the top of the dewar g Remove two remaining manifold mounting bolts Item 31 not visible in Figure 12...

Страница 30: ...l holding signal wire against the ca pacitance probe c Unsolder feed thru wire Item A from probe Item B d Loosen feed thru nut Item C and remove harness e To replace manifold harness reverse above pro...

Страница 31: ...Item 28 should open audible venting and or bubbling of leak test solution i Decrease pressure to 1 3 bar 19 psig Test relief valve with leak test solution A minimal amount of leakage bubbling is acce...

Страница 32: ...o humidifier adapter Item 26 on FCV outlet Open FCV Item 24 to 6 LPM setting d Assemble oxygen regulator pneumatic hose Item C with DISS fittings and male pneumatic test adapter Item D Connect as semb...

Страница 33: ...em 88 on tool f Install retaining ring Item 87 in QDV body Item15 by turning tool counter clockwise while pushing in on tool Torque retaining ring Item 87 to 225 280 N cm 20 25 in lbs RP17 Warming and...

Страница 34: ...e static seal Item 67 if needed FIGURE 21 Top Fill Push on QDV Assembly WARNING Liberator must be empty and vented before starting procedure WARNING Liberator must be empty and vented before starting...

Страница 35: ...g 4 Set Liberator FCV Item 24 to 6 LPM setting 5 Continue until Liberator is empty RP24 Warm Unit Figure 23 a Liberator may be allowed to sit FCV off vent closed a mini mum of 48 hours after emptying...

Страница 36: ...alues within tolerances listed in Table 9 or unit fails flow rate test NOTE Flow rates will only be accurate if the reservoir is filled properly Reference the filling section of this manual for the co...

Страница 37: ...ected to normal temperature and pressure 70 F 14 7 psig or 21 C and 1 01 Bar The above acceptable flow rates are intended for field testing only of flow control valves to account for variation in elev...

Страница 38: ...ator Item 35 c Follow RP29 to ensure proper settings on the replacement regulator d Reverse remainder of procedure to install new properly ad justed regulator RP29 Economizer Regulator Test a Follow s...

Страница 39: ...en in a full Liberator 45 reservoir 1 Empty weight of LIB 45 Reservoir 24 95 kg 55 00 lbs 2 Filled unit with properly saturated liquid oxygen 3 Full weight of LIB 45 Reservoir 74 99 kg 165 32 lbs 4 74...

Страница 40: ...uper Flex Liquid Oxygen Transfer Line 6 97406630 Dual Fill Head Tee 13350704 Service Manual 10661515 Conversion Kit TF to SF 10660361 Conversion Kit SF to Dual 10660344 Conversion Kit TF to Dual 10661...

Страница 41: ...40 Liberators Parts Price List XIV Contact Customer Service or visit www cairemedical com to obtain your parts list Liberators Technical Service Manual PN 13350704 Rev K...

Страница 42: ...Fax 44 0 1344 429224 4 Mail or fax the completed purchase order for confirmation to CAIRE Inc 2200 Airport Industrial Dr Ste 500 Ball Ground GA 30115 USA CAIRE Medical Ltd Unit 6 Ashville Way Wokingha...

Страница 43: ...ntenance performed Restocking Policy If it becomes necessary to cancel an order with CAIRE Inc af ter the shipment has been received use the following Restock Policy procedure 1 Notify the Customer Se...

Страница 44: ...Wokingham Berkshire RG41 2PL United Kingdom Ph 44 0 1189 367060 Fax 44 0 0118 979 9245 Copyright CAIRE Inc 2019 CAIRE Inc reserves the right to discontinue its products or change the prices materials...

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