Howard M9 Operating manual

TECHNICAL SERVICE MANUAL
M9TRANSFER

Standard Warranty
Thank you for purchasing your product from Howard Wright Limited.
Please refer to our website for our warranty terms:
• www.howardwrightcares.com
• www.howardwrightcares.co.uk
Howard Wright Limited’s Policy
Howard Wright Limited has a policy of continuous improvement and reserves the right to change product specifications
and information referred to in this document without notice.
All rights reserved.
No part of this publication may be reproduced without the prior written permission of Howard Wright Limited.
© Copyright – Howard Wright Limited, 2014.
This product shall be accepted and used in accordance with AS/NZS 3551 and AS/NZS 3003 or national
requirements outside NZ/AUS.
NOTE: Read the M9 Transfer Instructions For Use (M999-19) prior to operating and servicing this product.
NOTE: See Amendments page for products manufactured before June 2015.
17 Paraite Road, Bell Block PO Box 2786
PO Box 3003, Fitzroy Taren Point,
New Plymouth, 4341 New South Wales
New Zealand 2229, Australia
T. [phone] T. 1800 120 727
F. [phone] F. 1800 120 717
Advena Limited. Tower Business
Centre, 2nd Flr., Tower Street,
Swatar, BKR 4013. Malta.
Advena Limited.
Pure Offices, Plato Close,
Warwick, CV34 6WE, UK.
UK
Responsible
Person
EC REP

Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021) 1
CONTENTS
CHAPTER PAGE
1. INTRODUCTION ........................................................................................................................................................................ 3
2. PRECAUTIONS........................................................................................................................................................................... 5
3. ABBREVIATIONS, SYMBOLS & TERMINOLOGY.......................................................................................................... 7
4. CATALOGUE INFORMATION ................................................................................................................................................ 9
5. FASTENER GUIDE.................................................................................................................................................................. 10
6. MAINTENANCE & SERVICING ...........................................................................................................................................11
7. SERVICE INSTRUCTIONS....................................................................................................................................................15
Power cord ..............................................................................................................................................................15
Handset....................................................................................................................................................................16
Fuse........................................................................................................................................................................... 17
Battery ......................................................................................................................................................................18
Control box - CB16 ............................................................................................................................................19
Horizontal side rail - Gas strut assembly replacement ...............................................................................20
Backrest actuator...................................................................................................................................................21
Kneebreak actuator................................................................................................................................................23
Hi-Lo lift actuator....................................................................................................................................................24
Backrest ...................................................................................................................................................................26
Head end elevator..................................................................................................................................................27
Foot end elevator....................................................................................................................................................29
Castors.....................................................................................................................................................................31
Castor adjustment..................................................................................................................................................33
Earth cables.............................................................................................................................................................34
8. CONTROL SYSTEM TROUBLESHOOTING..................................................................................................................36
9. EARTH CABLES AND ELECTRICAL SPARES ..............................................................................................................38
10. ELECTRIC CIRCUIT ............................................................................................................................................................39
11. BOGIE & ELEVATORS.........................................................................................................................................................40
12. TRANSFER DECK COMPLETE........................................................................................................................................42
13. BACKREST & SEAT SECTION..........................................................................................................................................44
14. LEG SECTION COMPLETE...............................................................................................................................................45
Continue over page...

2 Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021)
CONTENTS
15. MISCELLANEOUS................................................................................................................................................................46
16. LABELS.....................................................................................................................................................................................50
17. SIDERAILS ...............................................................................................................................................................................51
18. AMENDMENTS......................................................................................................................................................................53

Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021) 3
1. INTRODUCTION
1.1 HOWARD WRIGHT LIMITED
Established in the 1950’s, Howard Wright Limited has built a reputation based on quality product and design
innovation. Today Howard Wright Limited equipment is found in healthcare institutions worldwide.
1.2 INTENDED USE
The M9 Stretchers are mainly used in assisting the diagnosis, monitoring, prevention, treatment and alleviation of
disease, or compensation for an injury or disability.
The M9 Stretchers are designed to be used by trained health professionals and, to a limited extent, members of
the public.
The M9 Stretchers are used generally within a hospital emergency department, day surgery clinic, X-Ray (M9 Trauma)
or throughout the hospital as a means of treatment for patients, resting and observation of patients and transporting
patients from one department or area to another.
The M9 Stretchers are intended to support adult patients aged 12 years and over with a minimum weight of 15kg.
The M9 Stretchers may accommodate one patient up to a weight not exceeding 250kg (including mass of mattress
and accessories).
1.3 TECHNICAL SUMMARY
1.3.1 VERSIONS
Two versions of the M9 Transfer stretcher are available.
• M9 Transfer (4-section patient platform)
• M9 Transfer (2-section patient platform)
This stretcher is supplied with electric operation only.
Various options and accessories are available for the M9 Transfer stretcher. Please contact Howard Wright Limited
for more information.
1.3.2 CONSTRUCTION
Howard Wright Limited products are manufactured from high quality durable engineering materials including steel,
aluminium and stainless steel with a durable epoxy/polyester hybrid powder coated finish. High quality durable
engineering plastics including Nylon, ABS, TPR & Polypropylene are also used.
M9 stretchers have a LINAK control box. This uses mains power at 220-240 V AC (50-60 Hz) to operate LINAK
actuators at 24 V DC. An on-board sealed lead-acid battery provides power when mains power is not available (e.g.
when moving the stretcher). Control buttons are located on a remote handset for adjustment of the backrest, deck
height, deck tilt, legraise and an auto-contouring preset function.

4 Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021)
1. INTRODUCTION
1.4 APPLICATION ENVIRONMENT
APPLICATION ENVIRONMENT 1:
Intensive/critical care provided in a hospital where 24 hour medical supervision and constant
monitoring is required and provision of life support system/equipment used in medical procedures is
essential to maintain/improve the vital functions of the patient.
APPLICATION ENVIRONMENT 2:
Acute care provided in a hospital or other medical facility where medical supervision and monitoring
is required and medical equipment used in medical procedures may be provided to help maintain or
improve the condition of the patient.
APPLICATION ENVIRONMENT 5:
Outpatient (ambulatory) care, which is provided in a hospital or other medical facility, under medical
supervision where ME EQUIPMENT, is provided for the need of persons with illness, injury or
disability for treatment, diagnosis or monitoring.
The stretcher is only intended for use in these environments.
NOTE: This includes use in nursing homes, rehabilitation and geriatric facilities.
1.5 SAFE WORKING LOAD (SWL)
Maximum patient weight = SWL minus weight of accessories
1 x O2 cylinder = 12 kg
1 x IV pole = 1.2 kg
1 x PH pole = 6.1 kg
1 x Mattress = 12 kg
= 30 kg
MAXIMUM PATIENT WEIGHT = SWL - 30 kg
MAXIMUM SWL = 220 kg
COMPACT
M930-04 REV C
WARD
WARD
COMPACT
Keep clear during backrest & CPR operation Keep clear during backrest & CPR operation
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Control Box Service
Remove cover plate with 5mm
hex key to access control box
Class 1 Medical Electrical Equipment Keep plugged in
whenever possible
Protective earth conductor is fitted to the fixed wiring. Ensure that the power and handset cords are positioned so they cannot become damaged during bed adjustment.
Power Input: Max. 2.0A 220-240V 50-60Hz Mode: Max. 2min/20min
Do notuse in oxygen rich environments
Howard Wright Limited, Paraite Road, Bell Block, New Plymouth, New Zealand. Call free: Australia: 1800 120 727 New Zealand: 0508 751 751
Power Input: Max. 2.0A Model: 220-240V 50-60Hz Date: Mode: Max. 2min/20min :
IPX4
SN
220kg 250kgMAX
220kg 250kgMAX
Potential
Equalisation
Terminal
tneverpotnoitcnuftuokcolesU
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190mm
MAX
860mm
1900mm
Mandatory Mattress Size: Compact
190mm
MAX
860mm
2000mm
Mandatory Mattress Size: Ward
Howard Wright Limited, Paraite Road, New Plymouth, NEW ZEALAND
Part # 1: M930-04 Part # 2:
M9 Ward and Compact 3ED Label Set
Description:
Parent Product: M9 Drawing Size: A2
Material:Rev
Colours:Pantone 637
Drawn
ZM
ChkdDate
16.07.13
New Artwork:
New Labels P1280
Adhesive: Tooling: New Artwork
Polycarb .175 Matt HP40 TA9474LE
Drawing Scale: 1:1
Pantone 432U
Grey White Background - matched to HWL powdercoat sample.
DIELINE
Permark UV264
BZM
20.02.14 ‘PLUS’ removed and typo fixed
AKnife: 6891K1 Setup
CTAJ
11.03.14 ECR305 - Typo fixed & plug-in symbol updated
Pink box is clear window, no print colour
NOTE: This is an indicative list. Other accessories can be used and the weight of these must be deducted.
Figure 1. Safe Working Load

Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021) 5
2. PRECAUTIONS
2.1 CONVENTIONS
The following conventions are used in this publication:
WARNING: Gives instructions or information intended to ensure the safety of the patient, caregiver and other
personnel.
CAUTION: Gives instructions or information intended to avoid damage to the stretcher or its accessories.
NOTE: Gives additional instructions or information intended to make the stretcher easier to use.
2.2 USER EDUCATION AND TRAINING
WARNING: If the patient suffers from disorientation, depression or similar then the electric functions should be
locked out to prevent the patient operating the stretcher.
OPERATOR: Must be trained in the use of the stretcher and fully understand the instructions for use.
PATIENT: A suitable risk assessment must be performed before the patient is placed on the stretcher and/
or given access to the stretcher control. The patient must fully understand the handset functions
before they can operate the stretcher by themselves.
2.3 GENERAL WARNINGS & CAUTIONS
WARNING: Read and understand this Technical Service Manual before servicing this stretcher.
WARNING: If the stretcher is found to have sustained any damage it must be removed from use immediately.
WARNING: Adhere to the hospitals risk management policy when placing a patient on the stretcher.
WARNING: Leave the stretcher in its lowest position when the patient is unattended.
WARNING: Do not use the stretcher for cyclic or repetitive manipulations of the patient.
WARNING: Ensure there is no risk of crushing or entrapment to the patient, other personnel, stretcher
components, or other objects when using the stretcher.
WARNING: Do not position the stretcher under any object.
WARNING: Residual current devices (RCD) are not supplied as standard with the stretcher. Consult with your
Biomedical Engineer/advisor concerning your RCD requirements.
WARNING: The stretcher is intended to support one patient at a time only.
WARNING: Do not connect the power cord if the plug or cord insulation is damaged. The power cord must be
replaced. However, the stretcher can still operate on battery.
WARNING: The safe working load of the stretcher is 250kg (this includes the mass of the patient mattress and
any accessories).
WARNING: Do not allow people to sit on the backrest or legraise when it is in the raised position.
WARNING: Follow the cleaning and disinfection instructions.

6 Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021)
2. PRECAUTIONS
WARNING: Only connect the stretcher to a mains supply with protective earth.
WARNING: Before using a mobile patient hoist, check underbed clearance.
WARNING: Do not use in an oxygen rich environment or any flammable gas environment.
WARNING: Do not modify any component or accessory without prior authorisation from Howard Wright Limited.
WARNING: Do not transport patients where the stretcher may become unstable
For example, inclines over 10 degrees.
WARNING: When routing cables from other equipment onto the stretcher, take precaution to avoid
the cables being squeezed between stretcher components.
WARNING: Always handle the power cord with care and keep it clear of any moving parts.
WARNING: Ensure the power cord and plug are always accessible.
WARNING: The supply plug is the only disconnection device.
CAUTION: Always stow the power cord and other equipment before transporting the stretcher.
CAUTION: The leg-raise panel must be physically supported when cleaning the underside.

Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021) 7
3. ABBREVIATIONS, SYMBOLS & TERMINOLOGY
3.2 SERIAL NUMBER LABEL SYMBOLS
The serial number label for the M9 Transfer stretcher is located at the LHS foot end of the deck frame.
NOTE: The colour red is used on the stretcher for emergency controls and warning symbols. The red
coloured brake pedal indicates that all castors are in locked position.
Figure 2. Stretcher serial number label - M9 Transfer stretcher
M930-06 REV D
Keep clear during backrest & CPR operation
Howard Wright Limited, Paraite Road, Bell Block, New Plymouth, New Zealand.
Australia: 1800 120 727 New Zealand: 0508 751 751 UK: 0845 094 9894
Power Input: Max. 2.0A Model:
220-240V 50-60Hz Date:
Mode: Max. 2min/20min :
SN
220kg 250kgMAX
220kg 250kgMAX
Potential
Equalisation
Terminal
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160mm
MAX
700mm
2000mm
Mandatory Mattress Size:
Howard Wright Limited, Paraite Road, New Plymouth, NEW ZEALAND
Part # 1:M930-06
Part # 2:
M9 TRANSFER LABEL SET
Description:
Parent Product: M9
Drawing Size: A2
Material:Rev
C
Colours:Pantone 637
Drawn
DAB
ChkdDate
17.05.21
New Artwork:
Adhesive:
Tooling: New Artwork / Use Knife 6891K1SETUP
Polycarb .175 Matt HP40
TA9474LE
Drawing Scale: 1:1
Pantone 432U
Grey White Background - matched to HWL powdercoat sample.
DIELINE
Permark UV 624
TRANSFER TRANSFER
Control Box Service
Do not use in oxygen rich environments
Class 1 Medical Electrical Equipment
Use lock out function to prevent unintended
movement of the mattress support platform
Protective earth conductor is fitted to the fixed
wiring. Ensure that the power and handset cords
are positioned so they cannot become damaged
during bed adjustment.
Keep plugged in
whenever possible
Power Input: Max. 2.0A
Mode: Max. 2min/20min
220-240V 50-60Hz
ECR763 - MD UKCA added
Note: Pink box is a clear window, no print colour.
Keep clear during backrest & CPR operation
tneverpotnoitcnuftuokcolesU
ehtfotnemevomdednetninu
mroftalptroppussserttam
IPX4
MD
B MJG
23.01.20 ECR667 - Duplicated lock out label
AJB
EC REP
Advena Limited.
Tower Business Centre, 2nd Flr.,
Tower Street, Swatar,
BKR 4013 Malta.
Advena Ltd.
Pure Offices, Plato Close,
Warwick, CV34 6WE
United Kingdom.
UK
Responsible
Person
D DAB
15.06.21 ECR763 - EC REP added was seperate label. AJB
3.1 ABBREVIATIONS
# Number
“ Inches
ABS Acrylonitrile Butadiene Styrene
AC Alternating Current
ACH Attendant Control Handset
AS/NZS Australian/New Zealand Standard
CE European Conformity
CPR Cardiopulmonary Resuscitation
CSK Counter sink
d Inside diameter
D Outside diameter
DC Direct Current
EEC European Economic Community
EMC Electromagnetic Compatibility
FE Foot end
HE Head end
ID Inside diameter
IEC International Electrotechnical Commission
IP Ingression Protection
ISM Industrial, Scientific and Medical
IV Intravenous
LH Low Height
OD Outside diameter
mm Millimetre(s)
m Metre(s)
M Metric
PAT Portable Appliance Test
PE Polyethylene
PH Patient Help
POAG Potential Equalisation Terminal
PP Polypropylene
PREMA Pressure RElieving MAttress
PU Polyurethane
PVC Polyvinyl Chloride
RCD Residual Current Device
SKT Socket
SN Serial Number
SQ Square
SQDR Square drive
SS Stainless steel
SWL Safe Working Load
TPR Thermoplastic Rubber
XL X-lube
ZP Zinc plated

8 Technical Service Manual M9 Transfer Stretcher (M999-29, Version 11, June 2021)
3. ABBREVIATIONS, SYMBOLS & TERMINOLOGY
Warning.
IPX4
Ingression protection (IP) rating as per BS EN 60529:1992, specification of degrees
of protection provided by enclosures.
•The number (4) refers to the degree of “water ingression protection”
Indicates compliance with the applicable European requirements.
Type B applied part.
MD Indicates the product is a Medical Device.
WEEE, Waste Electrical and Electronic Equipment.
Read and understand the instructions for use (IFU) before using the stretcher.
Power Input: Input current (maximum), supply voltage range, supply frequency range.
~Alternating current.
Mode: The stretcher is intended for intermittent operation. The ratio of the operating time to the
sum of the operating time and ensuing time should not exceed that specified.
MODEL: Reference code (model).
DATE: Date of manufacture.
Serial number.
Manufacturer.
European Authorised Representative.
3.3 OTHER SYMBOLS & TERMINOLOGY
220kg
250kgMAX
Maximum patient weight, kg.
220kg
250kg
MAX
Maximum safe working load (SWL), kg.
Warning: potential squeezing/shearing point.
Equipotentiality (potential equalisation).
Do not sit.