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4

PREVENTIVE MAINTENANCE

The following preventive maintenance should be performed every 12 months

4.1

Pump Unit

Replace the following components:

1.

Silencer bag

2.

Pivot points

3.

Bellow arms

4.

Valve bodies

5.

Compressor sponge filter

6.

Compressor gasket

Check:

a)

Base is free from debris

b)

Filter sponge position correct

c)

Compressor seating

d)

Electrical connections are secure and completely insulated

e)

Pressure control knob is tight

f)

Tubes are fully pushed on and are free from kinks

g)

Tubes and electrical insulation are not damaged

h)

Power switch illuminates

i)

Wiring is tidy

j)

Air is alternating

k)

Outlet tubes and snaplock connectors are secure and fitted

correctly

4.1.1

Testing

Test the pump as given in Section 5.

F048

4-1

Issue 3

Mar 2003

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Содержание Flowtron DVT

Страница 1: ...F048 Issue 3 Mar 2003 Huntleigh HEALTHCARE Flowtron DVT Service Manual ...

Страница 2: ...F048 Issue 3 Mar 2003 ...

Страница 3: ...RELIMINARIES Revision Record All revisions incorporated in this copy of the manual must be recorded below Section Page No Issue CN Inserted By Section Page No Issue CN Inserted By Issue 3 i F048 Mar 2003 ...

Страница 4: ...anual is intended to be used only by Huntleigh Healthcare trained service technicians In the event that the manual is provided to a customer in response to customer requirements the customer is advised not to attempt repairs and to direct any required service to Huntleigh trained service technicians In no event will Huntleigh be responsible for any service performed by customers or third parties W...

Страница 5: ...lacing the On Off Switch 5 2 Replacing the Fuse Holder 5 3 Replacing the Pressure Control Assembly 5 4 Replacing the Alarm Module Assembly 5 4 Replacing the Timer Motor Gear Box Assembly 5 5 Replacing the Electric Cord 5 5 Replacing the Compressor Air Inlet Sponge Filter 5 6 Replacing the Compressor Assembly 5 6 Replacing the Compressor Assembly Components 5 6 Test Equipment Requirements 5 8 Test ...

Страница 6: ...Issue 3 iv F048 Mar 2003 ...

Страница 7: ...o ensure correct operation during the service life of the system Section 3 Troubleshooting contains details of fault symptoms their possible causes and suggested steps to rectify the problem Section 4 Preventive Maintenance contains a list of parts which must be periodically replaced to ensure the correct operation of the system Section 5 Servicing the Pump contains illustrated procedures for repl...

Страница 8: ...te cycle approximately 12 seconds inflating 48 seconds deflating During the cycle air is pumped to one outlet followed by the commencement of inflation at the second outlet approximately 30 seconds later The pump unit is piece of precision equipment and provided that it is handled and serviced correctly normally every 12 months should give long and trouble free service Controls and indicators on t...

Страница 9: ...rity k Clean condition of pump If any items in a j appear defective replace with appropriate spare part and record action on service record sheet Re assemble pump unit completely 1 3 2 Testing The following procedures should be carried out following any repair and as part of the routine service Perform electrical safety checks pressure flow and calibration checks and functional checks as given in ...

Страница 10: ...F048 1 4 Issue 3 Mar 2003 ...

Страница 11: ...ge to case controls and connections etc b Inspect the electrical cord for damage cuts abrasion twisting and replace if necessary c Test all controls 2 1 2 Garments Check integrity of garments Visually inspect for punctures tears damage to connections fasteners tubes 2 1 3 Tubeset Check tubing and connectors for damage and replace if necessary F048 2 1 Issue 3 Mar 2003 ...

Страница 12: ...F048 2 2 Issue 3 Mar 2003 ...

Страница 13: ...l sounds visually inspect tubing and garments for punctures or tears This eliminates possible garment and tubing faults 3 2 Further Checks If the alarm stays on it could indicate 3 2 1 Low pressure fault Check position of pressure control knob The alarm will sound if the pressure in the garment does not reach 28 mmHg Adjust pressure control knob if necessary Refer to Section 4 3 2 2 Constant press...

Страница 14: ...The pressure reading should be at least 100 mmHg If the pressure does not reach 100 mmHg disconnect the power supply again and remove the compressor lid Remove the silencer bag from the valve bodies and connect the pressure gauge to each valve body in turn The pressure reading should once again be approximately 100 mmHg If this pressure cannot be reached the bellow armature assemblies and valve bo...

Страница 15: ...pressure control bags for leaks Any damaged parts must be replaced It is recommended in either case that the complete assembly is replaced Switch OFF the pump unit and disconnect the electric cord from the power outlet before performing any repair work 3 2 5 Loss of electrical power Power loss can be due to the following 1 No electricity supply at wall outlet 2 Faulty wall outlet 3 Damaged plug or...

Страница 16: ...F048 3 4 Issue 3 Mar 2003 ...

Страница 17: ...from debris b Filter sponge position correct c Compressor seating d Electrical connections are secure and completely insulated e Pressure control knob is tight f Tubes are fully pushed on and are free from kinks g Tubes and electrical insulation are not damaged h Power switch illuminates i Wiring is tidy j Air is alternating k Outlet tubes and snaplock connectors are secure and fitted correctly 4 ...

Страница 18: ...F048 4 2 Issue 3 Mar 2003 ...

Страница 19: ... side Before the removal or replacement of the pressure control assembly the face label must be removed Carefully peel the face label from the front panel and place to one side 5 2 Replacing the Alarm Light LED Carefully remove cut OFF insulation shrink sleeve from alarm indicator alarm module connectors Separate the pin socket connectors Pull OFF the black sleeve which retains the LED in the red ...

Страница 20: ...aulty audible alarm pry it OFF If this is difficult leave it in place and cut OFF the connections close to the body Attach the new alarm to the case in the correct position or adjacent to the faulty unit using a cyanoacrylate adhesive Reconnect the electrical wires as shown in the wiring diagram using the method described in paragraph 5 2 5 4 Replacing the ON OFF Switch To remove the on off switch...

Страница 21: ...the wires from the alarm module to the pressure control Disconnect the wires and remove the pressure control assembly Install the new pressure control assembly reconnect tubes ensuring that there are no kinks and tubes are pushed fully onto their mounts Secure the assembly with 3 countersunk bolts and nuts and carefully replace the face label Apply a small quantity of MIS047 cyanacrylate adhesive ...

Страница 22: ... to the terminal block as shown in the wiring diagram Put new shrink sleeves onto the six remaining wires Connect the wires by means of the pin socket connectors as shown in the wiring diagram Slide the sleeves over the connectors and apply hot air to shrink in position 5 8 Replacing the Timer Motor Gear Box Assembly The timer motor is a non repairable sealed unit and must be replaced if faulty It...

Страница 23: ... removed from the equipment the cord and plug must be destroyed and disposed of safely To avoid the danger of electric shock the plug must never be inserted in any power outlet Remove the ground wire from the side of the compressor case and carefully lift and lay aside the compressor assembly Remove the two self tapping screws attaching the clamp plate to the bottom of the case Disconnect the wire...

Страница 24: ...or case Reposition the compressor assembly and reconnect the compressor ground wire 5 11 Replacing the Compressor Assembly Disconnect the compressor outlet tubes from the four way connecter Disconnect the ground wire from the side of the compressor case Disconnect the compressor wires from the terminal block Remove the compressor assembly from the case To replace the compressor assembly ensure tha...

Страница 25: ...cer bag outlet tubes from the four way connector disconnect silencer bag inlet tubes from the valve body assemblies Replacement is the reverse of above procedure 5 12 2 Bellows Armature Blade Assemblies Pivot Points Unclip bellow from valve body assembly and extract armature blade from pivot point using long nosed pliers If necessary use a sharp pointed tool to remove the pivot points from the hol...

Страница 26: ...ppliance Tester Megger pat 2 2 recommended 4 Psion 5 ESD Service Kit 5 13 1 Pre testing Checks Before conducting any testing make the following checks Ensure the pressure flow rigs are within the calibration dates and that the equipment is operating correctly Check that all tubing and connectors on the test unit are tight and do not leak Check that all test equipment is functional Ensure Psion is ...

Страница 27: ...e AAMI American National Standard Safe Current Limits for Electromedical Apparatus or as specified in UL 544 or 2601 1 5 15 Calibration Equipment Required To test and calibrate the pump unit correctly the following equipment is required q A sphygmomanometer or pressure gauge 0 160 mmHg q A flowmeter 0 10 liter min 5 15 1 Pressure Flow and Calibration Checks 5 15 1 1 Pressure check Attach the press...

Страница 28: ...hich has a low pressure warning light fitted allow air to bleed from the outlet ports of the pump This action simulates a leak so the warning light should come ON and the sounder should activate within 90 seconds to produce a continuous sound Cover the outlet port to verify that the warning light and sounder goes OFF 5 15 2 3 Calibration If the pressure readings are incorrect then perform the foll...

Страница 29: ...nal Check Run the pump for a minimum of 1 hour and check calibration again Adjust if required With the pump running carry out the following a Turn the pressure to 30 mmHg and observe for 1 minute the alarm must not activate b Turn pressure to minimum alarm must activate within 45 seconds and remain on continuously continuous intermittent beeps c Turn pressure back to 30 mmHg alarm must cancel with...

Страница 30: ...F048 5 12 Issue 3 Mar 2003 ...

Страница 31: ...0 cm Weight 6 9 lbs 2 75 kg Pressure range 20 to 60 mmHg Alarms Audible Continuous pressure failure constant intermittent beep Low pressure failure intermittent beep during cycle in which failure is occurring Visual Red light Dual Tubeset Model Number DVT L550 USA Garments As appropriate Flowtron DVT range Full details available on request F048 6 1 Issue 3 Mar 2003 ...

Страница 32: ...F048 6 2 Issue 3 Mar 2003 ...

Страница 33: ...WIRING DIAGRAMS F048 1 1 Issue 3 Mar 2003 Flowtron DVT AC 500 ...

Страница 34: ...F048 1 2 Issue 3 Mar 2003 ...

Страница 35: ...id 1 BP032 Compressor Gasket 1 BP554 Valve Body BLUE 2 BP039 Valve Body Washer 4 BP043 Armature Pivot 2 165303 Grommet Leadthrough 1 BP028 E Stack 1 BP037 Flap Valve 4 BP038 Valve falp securing pad 1 SIL004 4 way tube mount 1 BP375 Bottom Enclosure White 1 BP411 Power Cord Assy 3 core DVT 1 NMB020 4 way Terminal Block 1 BP528 Top Enclosure Assembly 1 PAC008 Flexi Handle 1 247075 Hang Strap Assembl...

Страница 36: ... PRE004 Control Knob 1 PRE012 Alphabed Spring 1 BP384 LED Mounting Assembly 1 BP027 Compressor Support Rubber 6 BP044 Inlet Filter 1 CAS011 Fuse Link 500 mA 1 BP400 Heat Shrink Sleeving Red 1 Pkt PRE005 7 16 Brass Screw 1 PRE011 Rivet Semi Tubular 1 PRE013 Friction Spring Washer 1 BP455 Operating Instruction Manual 1 BP356 Caution Label FDA 1 CAS070 Warning Label 1 CAS029 Strain Relief Bush 1 CAS0...

Страница 37: ...F048 Issue 3 Mar 2003 ...

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