Huntleigh Flowtron DVT Service Manual
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Huntleigh Flowtron DVT Service Manual

Huntleigh Flowtron DVT Service Manual

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Huntleigh
H E A LT H C A R E
®
Flowtron
DVT
Service Manual
F048
Issue 3
Mar 2003

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Summary of Contents for Huntleigh Flowtron DVT

  • Page 1 Huntleigh H E A LT H C A R E ® Flowtron Service Manual F048 Issue 3 Mar 2003...
  • Page 2 F048 Issue 3 Mar 2003...
  • Page 3 PRELIMINARIES Revision Record All revisions incorporated in this copy of the manual must be recorded below. Page Inserted Page Inserted Section Issue Section Issue Issue 3 F048 Mar 2003...
  • Page 4 Preface Review this manual before attempting to service or repair the equipment. This manual 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.

  • Page 5: Table Of Contents

    Contents INTRODUCTION ....... . . 1-1 How To Use This Manual ......1-1 Technical Description .
  • Page 6 Issue 3 (iv) F048 Mar 2003...

  • Page 7: Introduction

    INTRODUCTION How To Use This Manual ® This manual contains information for servicing the system Flowtron which consists of a pump, a pair of compression sleeves and a tubeset. The manual is partitioned with tabbed dividers for ease of use and consists of the following sections.

  • Page 8: Technical Description

    Flowtron prophylactic therapy for patients at risk of developing Deep Vein Thrombosis. For optimum results it is recommended that be applied Flowtron DVT pre-operatively and used continuously during the pre-, intra-, and post-operative periods. The system comprises : 1. Pressure regulator pump Model AC500/2 2.

  • Page 9: Servicing Protocol

    Servicing Protocol 1.3.1 General Service - Pump Initial Assessment (Visual Check): Enclosure for integrity and cleanliness of top and base Fittings for damage and security Labels are secure and legible Open Pump: Wiring and terminations are secure Tubing security and integrity Components fastenings are secure General condition inside is clean Open Compressor:...
  • Page 10 F048 Issue 3 Mar 2003...

  • Page 11: Operational Maintenance

    OPERATIONAL MAINTENANCE Routine Checks These procedures should be performed each time the system is used. 2.1.1 Pump Unit Inspect the pump unit for external damage to case, controls and connections etc. Inspect the electrical cord for damage, cuts, abrasion, twisting, and replace if necessary.
  • Page 12 F048 Issue 3 Mar 2003...

  • Page 13: Troubleshooting

    System has an audible and a visual alarm. Flowtron DVT When a fault condition occurs, the audible alarm sounds and the red LED illuminates. The following checks should be performed by a trained Huntleigh Healthcare person. Preliminary Checks Check the following before dismantling the pump unit.
  • Page 14 3.2.3 Loss of air output pressure If the garments do not inflate, check them for leaks and for the correct connection of tubesets. If the leak check is satisfactory the pump unit internal compressor must be tested. WARNING Danger of electric shock. During the following tests live terminals and conductors will be exposed.
  • Page 15 4. Defective fuse link 5. Damaged internal wiring Evaluate each potential fault and correct as necessary. 3.2.6 Technical assistance For technical assistance, contact: Service Department Huntleigh Healthcare Inc. 40 Christopher Way Eatontown, New Jersey 07724-3327 Telephone : 732 578 9898 Fax :...
  • Page 16 F048 Issue 3 Mar 2003...

  • Page 17: Preventive Maintenance

    PREVENTIVE MAINTENANCE The following preventive maintenance should be performed every 12 months 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: Base is free from debris Filter sponge position correct Compressor seating Electrical connections are secure and completely insulated...
  • Page 18 F048 Issue 3 Mar 2003...

  • Page 19: Servicing The Pump

    SERVICING THE PUMP Caution All servicing and repair work must be performed by a trained Huntleigh Healthcare trained service technician. Dismantling the Pump Unit Before dismantling the pump unit, ensure that it has been switched OFF and isolated from the power supply by removing the electrical cord plug from the wall outlet.

  • Page 20: Replacing The Audible Alarm

    Fit a new red lens into the mounting plate from the front. Install the LED into the lens and push on a new retaining sleeve. Put new shrink sleeves onto the wires from the alarm module and connect the wires to the indicator by means of the pin/socket connectors.

  • Page 21: Replacing The Fuse Holder

    Replacing the Fuse Holder Disconnect the fuse holder wires from the on/off switch and from the terminal block. Compress the retaining flanges on the fuse holder body and push the fuse holder out of the case. Replacement is the reverse of the above procedure. Replacing the Pressure-Control Assembly Remove face label as previously described.

  • Page 22: Replacing The Alarm Module Assembly

    Replacing the Alarm Module Assembly Remove the two screws and lock washers together with two support pillars which attach both the alarm module and the motor/gearbox assemblies. Disconnect the blue and brown wires from the terminal block. Carefully remove (cut OFF) the shrink sleeves from the pin/socket connectors in the wires from the alarm module to the audible alarm (black+green), LED indicator (red+orange) and pressure control microswitch (white+purple).

  • Page 23: Replacing The Electric Cord

    Replacement is the reverse of the above. When reconnecting tubes to the assembly ensure that there are no kinks and tubes are pushed fully onto their mounts. Be careful not to strain or damage wires when re-attaching the alarm module. Replacing the Electric Cord The electric cord is fitted with a molded non-rewireable plug.

  • Page 24: Replacing The Compressor Air Inlet Sponge Filter

    5.10 Replacing the Compressor Air Inlet Sponge Filter The filter is located underneath the compressor and is attached with adhesive to the base of the pump case. Carefully lift and lay aside the compressor assembly, first disconnecting the ground wire from the side of the compressor casing.

  • Page 25: Replacing The Compressor Assembly Components

    5.12 Replacing the Compressor Assembly Components Unscrew and remove the 4 x M4 countersunk screws, remove the lid and gasket and place the lid to one side. Discard the gasket and replace with new item. 5.12.1 Silencer Bag Assembly Disconnect the silencer bag outlet tubes from the four-way connector, disconnect silencer bag inlet tubes from the valve-body assemblies.

  • Page 26: Test Equipment Requirements

    Replacement is reverse of above. 5.13 Test Equipment Requirements The following list of test equipment will be required to perform the pneumatic and electrical tests on Huntleigh Pumps: 1. Flow and Pressure Unit 2. Multimeter 3. Portable Appliance Tester (Megger pat 2/2 recommended) 4.

  • Page 27: Test Instructions And Specifications

    5.14 Test Instructions and Specifications After completing any repair work or servicing of the equipment, the following tests – extracted from ITP 349 – shall be performed. 5.14.1 Electrical Safety Checks WARNING Danger of electric shock. During the following tests live terminals and conductors will be exposed.
  • Page 28 With the Flow and Pressure Unit connected to the pump outlet-port – which dispenses air – check the following pump criteria. Rotate the pump control-knob from min., to mid., to max., to adjust the flow control 5.15.2.1 Flowtron DVT Pressure/Flow Specification Table Item Pump Voltage...
  • Page 29 5.15.2.4 Flow check Attach the flowmeter tube to the port under test and check the flow measurements. The flow readings should be: 5 liter/min. free flow Difference in flow between ports should not be greater than 1 liter/minute. 5.16 Functional Check Run the pump for a minimum of 1 hour and check calibration again.
  • Page 30 F048 5-12 Issue 3 Mar 2003...

  • Page 31: Technical Specifications

    TECHNICAL SPECIFICATION Pump Flowtron DVT Model Number AC500/2 Voltage 120 V ± 10% 60 Hz Input power 14 W Fuse F 500 mA 250 V Size 10.5 x 4.5 x 3.5 inches (26 x 12 x 10 cm) Weight 6.9 lbs. (2.75 kg)
  • Page 32 F048 Issue 3 Mar 2003...

  • Page 33: Wiring Diagram

    WIRING DIAGRAMS Flowtron DVT (AC 500) F048 Issue 3 Mar 2003...
  • Page 34 F048 Issue 3 Mar 2003...

  • Page 35: Parts List

    PARTS LIST AC500-2 USA (120 V) Pump Unit Flowtron DVT Part No. Description Qty per Pump BP445 Compressor Assembly (120 V 5 k-turns) BP447 Coil Assembly (5 k-turns 0.16 Grey) BP069 Silencer Bag Assembly BP214 Right-hand Bellows Assembly BP215 Left-hand Bellows Assembly...
  • Page 36 BP403 Pressure Control Assembly - DVT BP512 Outlet Connecter Tube Assembly BP405 Alarm Module Assembly - DVT BP409 Gearbox Assembly SP057 Tubeset Assembly (DVT L550 USA) BP006 Power ON/OFF Switch BP131 Hazard Warning Label BP205 Case Feet (Grey) BP530 Face Label (DVT 550 USA) PRE004 Control Knob PRE012...
  • Page 37 F048 Issue 3 Mar 2003...

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