HILLENBRAND INDUSTRY Hill-Rom AvantGuard User manual

Service Manual
AvantGuard™
Electric Bed
QD1787

AvantGuard™ Electric Bed Service Manual (QD1787) Page i
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AvantGuard™
Electric Bed
Service Manual
Revisions
QD1787
Revision Number Pages Affected Date
Original Issue August, 2002

Revisions
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Manufacturer:
HILL-ROM,
Z.I. du Talhouët, B.P. 14,
56330 PLUVIGNER. FRANCE.
© 2002 by Hill-Rom Services, Inc. ALL RIGHTS RESERVED
No part of this text shall be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying, recording, or by any
information or retrieval system without written permission from
Hill-Rom Services, Inc. (Hill-Rom).
The information in this manual is confidential and may not be disclosed to third
parties without the prior written consent of Hill-Rom Services, Inc. (Hill-Rom)
First Edition
First Printed 2002
Printed in Europe
Hill-Rom® is a registered trademark of Hill-Rom Services, Inc.
Allen™ is a trademark of Industrial Fasteners, Inc.
AvantGuard™ is a trademark of Hill-Rom Services, Inc.
Climat System™ is a trademark of Hill-Rom Services, Inc.
Cliniplot® is a registered trademark of Hill-Rom Services, Inc.
Clinisert 2™ is a trademark of Hill-Rom Services, Inc.
Duo2™isatrademarkofHill-RomServices,Inc.
EasyChair™ is a trademark of Hill-Rom Services, Inc.
Loctite® is a registered trademark of Loctite Corporation.
MobiBar™ is a trademark of Hill-Rom Services, Inc.
Primo™ is a trademark of Hill-Rom Services, Inc.
Torx® is a registered trademark of Textron, Inc.
TotalGuard™ is a trademark of Hill-Rom Services, Inc.
Truarc® is a registered trademark of Waldes Truarc, Inc.

Revisions
AvantGuard™ Electric Bed Service Manual (QD1787) Page iii
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The information contained in this manual is subject to change without notice.
Hill-Rom makes no commitment to update or keep current, the information
contained in this manual.
The only product warranty intended by Hill-Rom is the express, written warranty
accompanying the bill of sale to the original purchaser. Hill-Rom makes no other
warranty, express or implied, and in particular, makes no warranty of
merchantability or fitness for a particular purpose.
Additional copies of this manual can be obtained from Hill-Rom.
To order additional copies of this manual, call your national Hill-Rom
representative (see back cover), and place a parts order for part number QD1787.
IMPORTANT: Refer to the last page of this manual for the address of your
National Hill-Rom representative.

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NOTES:

AvantGuard™ Electric Bed Service Manual (QD1787) Page v
Table of Contents
Chapter 1: Introduction
Purpose..........................................................1-3
Audience.........................................................1-3
Organisation ......................................................1-3
Chapter 1: Introduction ...........................................1-3
Chapter 2: Troubleshooting Procedures ..............................1-3
Chapter3:TheoryofOperation....................................1-3
Chapter4:Removal,ReplacementandAdjustmentProcedures............1-3
Chapter5:PartsList.............................................1-3
Chapter6:GeneralProcedures.....................................1-3
Chapter7:Accessories...........................................1-4
Typographical Conventions ..........................................1-5
Acronym List......................................................1-6
Introduction.......................................................1-7
Overview......................................................1-7
BedPositions..................................................1-10
OperatingPrecautions...........................................1-14
Features......................................................1-14
HilowFunction.............................................1-16
HeadSection...............................................1-16
RetractableHeadSection .....................................1-16
CPREmergencyRelease......................................1-17
ThighSection ..............................................1-17
FootSection................................................1-17
AutomaticContour..........................................1-18
EasyChair™AutomaticChairPosition ..........................1-18
LateralCaregiverUnit........................................1-19
TotalGuard™IntegralSiderails................................1-21
Brakes....................................................1-22

Table of Contents
Page vi AvantGuard™ Electric Bed Service Manual (QD1787)
Steering ...................................................1-22
Headboards and Footboards....................................1-23
HardSurfacesontheHead,Seat,ThighandFootSections ...........1-23
Casters....................................................1-23
RestrainingStrapAttachmentPoints.............................1-23
ProtectiveBumpers..........................................1-23
I.V.PoleSockets............................................1-24
OptionalFeatures............................................1-24
Specifications.....................................................1-26
PhysicalDescription ............................................1-26
ElectricalDescription............................................1-27
Power Supply Unit...........................................1-28
ControlUnit................................................1-28
Motor-DrivenActuators.......................................1-28
Regulations,Standards,andCodes.................................1-29
ModelIdentification................................................1-30
SafetyTips.......................................................1-30
IdentificationandCautionLabels.....................................1-35
Chapter 2: Troubleshooting Procedures
GettingStarted.....................................................2-3
Initial Actions......................................................2-4
RapidProblem/SolutionIdentificationTable..........................2-4
FunctionChecks....................................................2-6
FinalActions.....................................................2-12
Appendix.....................................................2-12
NoFunctionsWork................................................2-13
ControlUnitMalfunction ...........................................2-16
FunctionManagementModeMalfunction ..............................2-18
HilowMalfunction ................................................2-20
ThighSectionMalfunction ..........................................2-22
HeadSectionMalfunction(excludingAutomaticContour).................2-24
AutomaticContourMalfunction......................................2-26

Table of Contents
AvantGuard™ Electric Bed Service Manual (QD1787) Page vii
BatteryBackupMalfunction ........................................2-29
FootSectionMalfunction...........................................2-31
AssistedFootSectionMalfunction ...................................2-34
EasyChair™AutomaticChairPositionMalfunction......................2-35
Trendelenburg/Reverse Trendelenburg Malfunction ......................2-36
Emergency Trendelenburg Function not Working with Bed
Connected to AC Power ............................................2-37
Emergency Trendelenburg Function not Working with the Bed not
Connected to AC Power ............................................2-39
Bed Connected to AC Power, Brakes not Applied Detection Malfunction .....2-42
CPRMalfunction .................................................2-44
FootSiderailLocking/UnlockingMalfunction ..........................2-45
HeadSiderailLocking/UnlockingMalfunction..........................2-46
BrakingMalfunction ..............................................2-47
SteeringMalfunction ..............................................2-48
5thWheelSteeringMalfunction .....................................2-49
Chapter 3: Theory of Operation
Component Positioning and Electrical Diagrams - LI158Ax/LI159Ax .........3-3
TheoryofOperation................................................3-6
MechanicalSystem.................................................3-7
RetractableHeadSection .........................................3-7
CPREmergencyRelease..........................................3-7
AssistedFootSection............................................3-7
Hilow.........................................................3-7
Casters........................................................3-8
Braking.......................................................3-8
Steering.......................................................3-8
5thWheelSteeringSystem........................................3-8
TotalGuard™IntegralSiderailConstruction..........................3-9
Foot Siderail Supports............................................3-9
HeadandFootboards.............................................3-9
ElectricalSystem..................................................3-10
Power Supply Unit Characteristics .................................3-10

Table of Contents
Page viii AvantGuard™ Electric Bed Service Manual (QD1787)
PowerStage...................................................3-11
FunctionControl...............................................3-11
BatteryCircuit.................................................3-12
BatteryCharacteristics........................................3-12
ControlLogicandSpecificFunctions...............................3-13
ControlPendant................................................3-14
ControlPanelonaFlexibleArm...................................3-14
LateralCaregiverUnit...........................................3-14
MotorCharacteristics............................................3-14
ManagementoftheActuators.....................................3-15
Detection of Bed not in Low Position ...............................3-15
AutomaticContour..............................................3-15
EasyChair™AutomaticChairFunction.............................3-16
Emergency Trendelenburg Function ................................3-16
Detection of Bed Connected to AC Power but Brakes not Applied
(OptionalDependingontheModel)................................3-16
Trendelenburg/Reverse Trendelenburg . . . ...........................3-16
Chapter 4: Removal, Replacement and Adjustment Procedures
BedFrameHardSurfaceReplacement..................................4-5
Removal.......................................................4-5
Replacement....................................................4-7
ControlPendant ..................................................4-10
Removal......................................................4-10
Replacement...................................................4-11
ControlPanelonaFlexibleArm .....................................4-12
Removal......................................................4-12
Replacement...................................................4-13
ACPowerCable ..................................................4-15
Removal......................................................4-15
Replacement...................................................4-16
Power Supply Unit ................................................4-18
Removal......................................................4-18

Table of Contents
AvantGuard™ Electric Bed Service Manual (QD1787) Page ix
Replacement..................................................4-20
Battery Backup and Emergency Trendelenburg Function ..................4-22
Removal .....................................................4-22
Replacement..................................................4-23
LateralCaregiverUnit .............................................4-25
Removal .....................................................4-25
Replacement..................................................4-26
HeadSectionActuator .............................................4-27
Removal .....................................................4-27
Replacement..................................................4-29
HeadSectionReleaseCable.........................................4-30
Removal .....................................................4-30
Replacement..................................................4-31
Adjustment...................................................4-31
ThighSectionActuator ............................................4-33
Removal .....................................................4-33
Replacement..................................................4-34
Foot Section Actuator Replacement (LI159Ax only) .....................4-35
Removal .....................................................4-35
Replacement..................................................4-36
HeadHilowColumn...............................................4-37
Removal .....................................................4-37
Replacement..................................................4-40
FootHilowColumn ...............................................4-42
Removal .....................................................4-42
Replacement..................................................4-46
HilowPedal .....................................................4-48
Removal .....................................................4-48
Replacement..................................................4-49
ReplacementofMicroswitchAssemblyforBedBrakingDetection..........4-50
Removal .....................................................4-50
Replacement..................................................4-51

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Page x AvantGuard™ Electric Bed Service Manual (QD1787)
SingleBrakeBar..................................................4-52
Removal......................................................4-52
Replacement...................................................4-55
Caster,BrakeandSteerCaster .......................................4-56
Removal......................................................4-56
Replacement...................................................4-58
Adjustment: Single and Double Band Casters.........................4-59
SteerCaster...................................................4-60
5thWheelSteeringSystem..........................................4-61
Removal......................................................4-61
Replacement...................................................4-62
HeadSectionGasSpring ...........................................4-63
Removal......................................................4-63
Replacement...................................................4-64
Gas Spring Subassembly with Cable and Foot Section Sleeve (LI158Ax only) .4 - 65
Removal......................................................4-65
Replacement...................................................4-67
Adjustment....................................................4-67
HeadSiderailIncludingElevationArmSubassembly .....................4-68
Removal......................................................4-68
Replacement...................................................4-69
Siderail .........................................................4-70
Removal......................................................4-70
Replacement...................................................4-71
Foot Siderail Support ..............................................4-72
Removal......................................................4-72
Replacement...................................................4-73
HeadandFootboard ...............................................4-74
Removal......................................................4-74
Replacement...................................................4-74
LinenHolderTable(optional) .......................................4-75
Removal......................................................4-75

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AvantGuard™ Electric Bed Service Manual (QD1787) Page xi
Replacement..................................................4-75
Extension(optional)...............................................4-76
Removal .....................................................4-76
Replacement..................................................4-77
EgressBar ......................................................4-78
Removal .....................................................4-78
Replacement..................................................4-79
Chapter 5: Parts List
Warranty.........................................................5-3
OrderingServiceParts...............................................5-4
ExchangePolicy...................................................5-6
In-WarrantyExchanges...........................................5-6
Out-of-WarrantyExchanges.......................................5-6
RecommendedSpareParts...........................................5-7
BaseFrame-Elevation..............................................5-8
IntermediateFrame................................................5-10
SleepSurface.....................................................5-12
SiderailAssemblies................................................5-14
Miscellaneous(ItemsnotIllustrated)..................................5-15
Chapter 6: General Procedures
CleaningandCare..................................................6-3
GeneralCleaning................................................6-3
SteamCleaning.................................................6-3
HardtoCleanSpots..............................................6-3
Disinfection....................................................6-3
StoringtheBed.................................................6-3
LubricationRequirements............................................6-4
PreventiveMaintenance.............................................6-5
PreventiveMaintenanceSchedule ..................................6-6
PreventiveMaintenanceChecklist.................................6-16
Tools and Supply Requirements ......................................6-18

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Page xii AvantGuard™ Electric Bed Service Manual (QD1787)
Chapter 7: Accessories
Accessories .......................................................7-3
Accessory Support Bar Kit - AD126A ..................................7-5
Installation.....................................................7-5
Removal.......................................................7-6
Medical Device Support Rail Kit - AD127A . ............................7-7
Installation.....................................................7-7
Removal.......................................................7-8
MobiBar™ Egress Bar Kit - AD134A ..................................7-9
Installation.....................................................7-9
Removal......................................................7-10
Control Panel on a Flexible Arm Kit - AD136A .........................7-11
Installation....................................................7-11
Removal......................................................7-13
Hilow Pedal Kit - AD137A ..........................................7-14
Installation....................................................7-14
Removal......................................................7-15

AvantGuard™ Electric Bed Service Manual (QD1787) Page 1 - 1
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Chapter 1
Introduction
Chapter Contents
Purpose...........................................................1-3
Audience .........................................................1-3
Organisation.......................................................1-3
Chapter 1: Introduction ...........................................1-3
Chapter 2: Troubleshooting Procedures. . . ............................1-3
Chapter3:TheoryofOperation.....................................1-3
Chapter4:Removal,ReplacementandAdjustmentProcedures............1-3
Chapter5:PartsList..............................................1-3
Chapter6:GeneralProcedures .....................................1-3
Chapter7:Accessories............................................1-4
Typographical Conventions...........................................1-5
Acronym List ......................................................1-6
Introduction.......................................................1-7
Overview......................................................1-7
BedPositions..................................................1-10
OperatingPrecautions...........................................1-14
Features......................................................1-14
HilowFunction .............................................1-16
HeadSection...............................................1-16
RetractableHeadSection......................................1-16
CPREmergencyRelease......................................1-17
ThighSection...............................................1-17
FootSection................................................1-17
AutomaticContour...........................................1-18
EasyChair™AutomaticChairPosition...........................1-18
LateralCaregiverUnit........................................1-19

Chapter 1: Introduction
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TotalGuard™IntegralSiderails................................1-21
Brakes....................................................1-22
Steering...................................................1-22
Headboards and Footboards ...................................1-23
HardSurfacesontheHead,Seat,ThighandFootSections...........1-23
Casters....................................................1-23
RestrainingStrapAttachmentPoints ............................1-23
ProtectiveBumpers..........................................1-23
I.V.PoleSockets............................................1-24
OptionalFeatures ...........................................1-24
Specifications ....................................................1-26
PhysicalDescription............................................1-26
ElectricalDescription...........................................1-27
Power Supply Unit ..........................................1-28
ControlUnit................................................1-28
Motor-DrivenActuators......................................1-28
Regulations,Standards,andCodes.................................1-29
ModelIdentification...............................................1-30
SafetyTips.......................................................1-30
IdentificationandCautionLabels.....................................1-35

Purpose
Chapter 1: Introduction
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Purpose
This manual provides requirements for the AvantGuard™ Electric Bed normal
operation and maintenance. It also includes a parts list (in chapter 5) for ordering
replacement components.
Audience
This service manual is to be used only by facility-authorised personnel only.
Failure to observe this restriction can result in severe injury to people and serious
damage to equipment.
Organisation
This manual contains seven chapters.
Chapter 1: Introduction
In addition to a brief description of this service manual, chapter 1 also provides a
product overview.
Chapter 2: Troubleshooting Procedures
Repair analysis procedures are contained in this chapter. Use these procedures to
gather information, identify the maintenance need, and verify the effectiveness of
the repair.
Chapter 3: Theory of Operation
This chapter describes the application of the mechanical and electrical systems
employed in this product.
Chapter 4: Removal, Replacement and Adjustment Procedures
Chapter 4 contains the detailed maintenance procedures determined necessary in
chapter 2.
Chapter 5: Parts List
This chapter contains the warranty, part-ordering procedure, and illustrated parts
lists.
Chapter 6: General Procedures
Cleaning, preventive maintenance, and other general procedures are described in
this chapter.

Organisation
Chapter 1: Introduction
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Chapter 7: Accessories
A list of additional products, that can be used in conjunction with the
AvantGuard™ Electric Bed, is available in chapter 7. Installation procedures for
these accessories are also included.

Typographical Conventions
Chapter 1: Introduction
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Typographical Conventions
This manual contains different typographical conventions designed to enhance the
readability and understanding of its content. These conventions are listed below:
• Standard text — used for standard text throughout the manual.
•Boldface text: emphasizes a word or phrase.
•NOTE: sets apart special information clarification of an important instruction.
• The symbol below highlights a WARNING or CAUTION
Figure 1-1. Warning or Caution
– A WARNING identifies situations or actions that may affect patient
or user safety. Disregarding a warning could result in patient or user
injury.
– A CAUTION points out special procedures or precautions that
personnel must follow to avoid equipment damage.
• The symbol below highlights a CAUGHT HAZARD WARNING:
Figure 1-2. Caught Hazard Warning
• The symbol below highlights an ELECTRICAL SHOCK HAZARD
WARNING:
Figure 1-3. Electrical Shock Hazard Warning

Acronym List
Chapter 1: Introduction
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Acronym List
There are several acronyms associated with the AvantGuard™ Electric Bed. For a
list of acronyms, see table 1-1 on page 1-6.
Table 1-1. Acronym List
Acronym Definition
CPR Emergency release of head section for Cardio-Pulmonary
Resuscitation
CU Control Unit (control pendant or control panel on a
flexible arm)
DMM Digital Multimeter
EOT End of Travel
F-Col Foot Hilow Column
BM Brake Microswitch
g/y Green/Yellow
H-Col Head Hilow Column
HL Hilow
HS Head Section
HSA Head Section Adjustment
IVP I.V. Pole
LCU Lateral Caregiver Unit
LED Light Emitting Diode
FS Foot Section
NC Normally Closed
NO Normally Open
PAT Portable Appliance Tester
P/N Part Number
PSU Power Supply Unit
RAP Repair Analysis Procedure
RHS Retractable Head Section
S/A Sub-Assembly
SS Seat Section
TP Test Point
Tr/Rev Tr Trendelenburg/Reverse Trendelenburg
TS Thigh Section
VAC Volts Alternating Current
VDC Volts Direct Current