Huntleigh Nimbus II User manual

Issue 1
SER0001 Jun 2001
Nimbus II, Nimbus 3,
DFS2 and DFS3
Service Manual
Huntleig
h
HEALTHCARE

AMENDMENT RECORD
Amendment Incorporated by Date
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Issue 1 Amendment Record
Jun 2001 SER0001 Page (i)
Nimbus / DFS Service Manual Amendment Record

Amendment Record Issue 1
Page (ii) SER0001 Jun 2001
Amendment Record Nimbus / DFS Service Manual

Contents
CHAPTER 1
Introduction ....................................1
About This Manual ......................................1
Warnings, Cautions and Notes ............................1
Technical Description .....................................1
Operating Principle...................................1
Dynamic Mode .....................................2
Static Mode ......................................3
Auto-Matt........................................4
System Start Up Sequence ..............................4
Alternating Head Cells Modification ..........................4
CHAPTER 2
Maintenance ...................................1
Pump Maintenance Checks .................................1
Pump Soak Times ......................................2
Pump Service .........................................2
Mattress Maintenance Checks ................................3
Mattress Service .......................................3
CHAPTER 3
Pump Repair ...................................1
General ............................................1
Removing the Hanging Bracket................................3
Installing the Hanging Bracket ................................3
Disassembling the Rear Case ................................5
Assembling the Rear Case ..................................5
Disassembling the Pump Filter ................................7
Assembling the Pump Filter .................................7
Removing the Double Compressor Assembly ........................9
Installing the Double Compressor Assembly .........................9
Removing the AV Mounts ..................................10
Installing the AV Mounts...................................10
Replacing the Compressor Filters ..............................13
Removing the Compressor Bump Stops ..........................13
Installing the Compressor Bump Stops ...........................13
Replacing the Shuttle Assemblies..............................15
Issue 1
Jun 2001 SER0001 Page (i)
Nimbus / DFS Service Manual Contents

Replacing the Coil Assemblies ...............................15
Replacing the Manifold Gasket ...............................17
Removing the Rotary Valve Assembly ...........................18
Installing the Rotary Valve Assembly ............................19
Circuit Boards ........................................21
Removing the Old Style Display Panel PCB, the PCB Transformer and Daughter Board (if
fitted). ............................................21
Removing the New Style Display Panel PCB........................25
Installing the New Style Display Panel PCB ........................26
Removing the Pressure Control Assembly .........................29
Installing the Pressure Control Assembly ..........................29
Removing the High Pressure Switch ............................31
Installing the High Pressure Switch .............................31
Replacing the Mains/Power Switch .............................33
Replacing the Mains/Power Inlet Socket and Cordset (Moulded Cordset Versions Only) . 35
Replacing the Mains/Power Fuses (All Versions) ......................37
Replacing the Mains/Power Inlet Fuse Holders (Moulded Cordset Versions Only) .....37
Removing the Mains/Power Cable (Hard wired versions only) ...............39
Installing the Mains/Power Cable (Hard wired versions only) ................39
Removing the Mains/Power Fuseholders (Hard wired versions only)............41
Installing the Mains/Power Fuseholders (Hard wired versons only).............42
Removing the Mains/Power Filter (Hard wired versons only) ................42
Installing the Mains/Power Filter (Hard wired versions only) ................43
Removing the 5-Way Connector and Support (Hard wired versions only) .........45
Installing the 5-Way Connector and Support (Hard wired versions only) ..........45
Replacing the Silencer Bag .................................47
Removing the Bio Filter (Nimbus 3 and DFS 3 Pumps Only) ................49
Installing the Bio Filter (Nimbus 3 and DFS 3 Pumps Only).................49
Changing the Battery ....................................51
Replacing the Sounder ...................................51
Replacing the Pump Case..................................52
Pump Label Sets ......................................53
CHAPTER 4
Mattress repair ..................................1
General ............................................1
Removing the Top Cover ...................................3
Installing the Top Cover ...................................3
Issue 1
Page (ii) SER0001 Jun 2001
Contents Nimbus / DFS Service Manual

Removing the Base Cover ..................................3
Installing the Base Cover ...................................7
Replacing the Soft Foam Sheet ...............................9
Cell Replacement ......................................11
Removing a Cell .......................................11
Installing a Cell .......................................11
Removing the Manifold Assembly ..............................12
Installing the Manifold Assembly ..............................12
Removing the Partial Non-Return Valve Assemblies ....................14
Installing the Partial Non-Return Valve Assemblies .....................14
Removing the Loop Sheet Assembly ............................15
Installing the Loop Sheet Assembly .............................15
Replacing the Elastic Loops (Nimbus 3/DFS 3 Only) ....................16
Removing the Sensor Pad Assembly ............................17
Installing the Sensor Pad ..................................17
Removing the CPR Unit ...................................18
Installing the CPR Unit ...................................18
Replacing the Release Button................................19
Replacing the Tubeset ...................................20
Replacing the CPR O-Rings.................................23
Replacing the Transport Assembly .............................23
Repairing the CPR Handle Sub-Assembly .........................24
Replacing the CPR Manifold Gasket ............................25
Alternating Head Cells....................................27
Modification Kit ....................................27
Installing the Alternating Head Cell Modification - Configuration 1 .............27
Installing the Alternating Head Cell Modification - Configuration 2 .............30
CHAPTER 5
Troubleshooting .................................1
Troubleshooting Table ....................................1
CHAPTER 6
Testing ......................................1
Pump Flow, Pressure and Function Test ...........................1
Test Setup .......................................1
Power Fail Alarm Check ................................2
Alarm Functions ....................................2
Issue 1
Jun 2001 SER0001 Page (iii)
Nimbus / DFS Service Manual Contents

High/Low Pressure Setpoint and Mute Mode Checks .................2
Static and Dynamic Mode Pressure Tests .......................2
High/Low Pressure Setpoint Checks and Mute Mode Check using the Psion Organiser . . 3
Psion Organiser Setup .................................3
High Pressure Switch Setpoint Check .........................3
Low Pressure Switch Setpoint Check .........................3
Mute Mode Check ...................................4
High/Low Pressure Setpoint Checks and Mute Mode Check using the IR Interface Module. 4
IR Interface Setup ...................................4
High Pressure Switch Setpoint Check .........................5
Low Pressure Switch Setpoint Check .........................5
Mute Mode Check ...................................5
Static and Dynamic Mode Pressure Tests using the Psion Organiser ............5
Static and Dynamic Mode Calibration Readings....................5
Adjusting the Pressure .................................5
Psion Organiser Setup .................................5
Static Mode Pressure Tests ..............................6
Dynamic Mode Pressure Tests ............................7
Check Pump Serial Number ..............................8
Static and Dynamic Mode Pressure Tests using the IR Interface ..............8
Static and Dynamic Mode Calibration Readings....................8
Adjusting the Pressure .................................8
IR Interface Setup ...................................8
Static Mode Pressure Tests ..............................8
Dynamic Mode Pressure Tests ............................9
Check Pump Serial Number .............................10
Psion Organiser Setup ...................................11
IR Interface Setup and Passwords for ProNimbus .....................11
Electrical Testing ......................................13
Electrical Safety Checks - Class I ..........................13
Earth Continuity Tests ................................13
Insulation Resistance Tests .............................13
Dielectric Strength Test (Flash Test) .........................14
Leakage Circuit Test (USA) .............................14
Mattress Pressure and Function Test ............................15
Test Procedure ....................................15
CHAPTER 7
Technical specification..............................1
CHAPTER 8
Parts List .....................................1
Issue 1
Page (iv) SER0001 Jun 2001
Contents Nimbus / DFS Service Manual

Pump Assembly Parts List ..................................1
Mattress Assembly Parts List .................................7
CHAPTER 9
Service Contact Details .............................1
Issue 1
Jun 2001 SER0001 Page (v)
Nimbus / DFS Service Manual Contents

Issue 1
Page (vi) SER0001 Jun 2001
Contents Nimbus / DFS Service Manual