Global MAXI S 4500LX User manual

110-015-026 REV D
ECO 202864 Date Effective: June 2017
S 4500LX
Owner’s Manual
MAXI®
S 4500LX EXAMINATION CHAIR

3610 Tree Court Industrial Blvd.
St. Louis, MO 63122, USA
1-800-861-3585
If outside the USA:1-636-861-3388
When contacting Global Surgical™ Corporation for either Customer Service or Technical
Service, it will be helpful if you have your Customer Identication Number and your
Customer Order Number available. Please take a moment to record these numbers,
which are printed on your invoice, in the spaces below.
Customer Identication Number:
Customer Order Number:
COPYRIGHT NOTICE
© Copyright 2016, Global Surgical™ Corporation. No part of this publication may be copied,
photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable
form, in whole or in part, without the prior written consent of Global Surgical Corporation,
3610 Tree Court Industrial Blvd., St. Louis, MO 63122, USA

Section 1: General Information .............................................................................................. 1-1
1.1. Description ................................................................................................................... 1-1
1.2. Optional equipment ...................................................................................................... 1-2
1.3. Unpacking Instructions ................................................................................................. 1-3
Section 2: Installation ............................................................................................................. 2-1
2.1. Installation of Chair ...................................................................................................... 2-1
2.2. Installation of Optional Footswitch ............................................................................... 2-2
Section 3 Operation ................................................................................................................ 3-1
3.1. Power On Procedure .................................................................................................... 3-1
3.2. Keypad Functions ........................................................................................................ 3-1
3.3. Headrest ....................................................................................................................... 3-5
3.4. Armrest ......................................................................................................................... 3-10
3.5. Footrest ........................................................................................................................ 3-11
3.6. Footswitch (Optional) ................................................................................................... 3-12
3.7. Positioning of the Patient ............................................................................................. 3-12
3.8. Chair Positions ............................................................................................................. 3-13
3.9. Power Off Procedure .................................................................................................... 3-14
Section 4: Cleaning and Maintenance ................................................................................... 4-1
4.1. Performance Fabric Upholstery Cleaning and Disinfecting .......................................... 4-1
4.2. Plastic Surfaces Cleaning and Disinfecting .................................................................. 4-2
4.3. Metal Surfaces Cleaning and Disinfecting .................................................................... 4-2
4.4. Preventive Maintenance ............................................................................................... 4-3
Section 5: Troubleshooting .................................................................................................... 5-1
5.1. Troubleshooting ............................................................................................................ 5-1
Section 6: Service and Warranty............................................................................................ 6-1
6.1. Warranty Information .................................................................................................... 6-1
6.2 Technical Services Department .................................................................................... 6-2
6.3. Internet Access ............................................................................................................. 6-2
6.4. Service Information ...................................................................................................... 6-2
Section 7: Technical Data ....................................................................................................... A-1
Appendix A .......................................................................................................................... A-1
TABLE OF CONTENTS
i

ii
SYMBOL DEFINITIONS
This symbol on the product is an attention symbol, alerting the user to read the
Owner’s Manual for important installation, operating instructions or safety information.
This symbol on the product indicates a potential electrical shock hazard, and alerts the user to
read the Owner’s Manual for important safety information.
Symbol indicating an accessible location on or within the chair where there is risk that a body
part may become trapped.
Symbol indicating “not for general waste.” Recycle per the EUROPEAN WASTE ELECTRICAL
AND ELECTRONIC EQUIPMENT (WEEE) DIRECTIVE.
This symbol indicates earth ground
Equipotentiality
Type B Applied Part
For Professional Use Only
WARNING
!This symbol indicates a situation in which incorrect handling through disregard of a warning
might result in death or serious personal injury.
CAUTION
!This symbol indicates a situation in which incorrect handling through disregard of a caution might
result in personal injury or may result in damage to property.
NOTICE This symbol indicates a message to avoid property damage or additional information to help
complete a procedure.

iii
We encourage our customers to recycle this product whenever possible. Disposal of this
unit must be performed in accordance with the applicable local environmental regulations.
WARNING
!THE SAFETY AND SATISFACTION OF OUR CUSTOMERS AND THEIR
PATIENTS IS THE HIGHEST PRIORITY OF GLOBAL SURGICAL. THE
FOLLOWING SECTIONS OF THIS MANUAL CONTAIN IMPORTANT
INFORMATION REGARDING THE SAFE AND PROPER USE OF THIS
EQUIPMENT, AND SHOULD BE READ THOROUGHLY BY ALL OPERATORS
PRIOR TO THEIR FIRST USE OF THE EQUIPMENT. FAILURE TO READ AND
UNDERSTAND THIS MATERIAL COULD RESULT IN INJURY TO PATIENTS OR
PERSONNEL, OR IN DAMAGE TO THE EQUIPMENT.
WARNINGS AND CAUTIONS

WARNINGS AND CAUTIONS
iv
WARNING
!TO REDUCE THE RISK OF INJURY, THE MOTION OF THE CHAIR DUE TO AUTO-
RETURN AND MEMORY POSITIONING CAN BE STOPPED IMMEDIATELY BY
PRESSING ANY KEY ON THE KEYPAD.
WARNING
!TO HELP PREVENT MISUSE OF THE EXAM CHAIR WHILE PATIENTS ARE LEFT
UNATTENDED, ALWAYS ENGAGE THE SAFETY LOCK BEFORE LEAVING THE
ROOM.
WARNING DISCONNECT ALL ELECTRICAL POWER PRIOR TO CLEANING AND
DISINFECTING. RISK OF ELECTRICAL SHOCK RESULTING IN DEATH OR
INJURY IS POSSIBLE IF THE ELECTRICAL POWER IS NOT DISCONNECTED.
WARNING
!NO MODIFICATION OF THIS EQUIPMENT IS ALLOWED.
WARNING TO PREVENT RISK OF SHOCK OR INJURY, DO NOT USE OTHER ELECTRICAL
EQUIPMENT ON THE PATIENT WITHOUT FIRST ENSURING PROPER
GROUNDING OF CHAIR.
WARNING
!THE USE OF POWER CORD AND PLUG OTHER THAN THOSE INCLUDED WITH
THE MAXI S 4500LX EXAMINATION CHAIR AND SUPPLIED BY GLOBAL
SURGICAL CORPORATION MAY RESULT IN INCREASED EMISSIONS OR
DECREASED IMMUNITY OF THE S 4000 EXAMINATION CHAIR.
WARNING
!IT IS HIGHLY RECOMMENDED THAT THE INSTALLATION OF THIS EQUIPMENT
BE PERFORMED BY QUALIFIED TECHNICIANS. INSTALLATION BY
UNQUALIFIED INDIVIDUALS COULD RESULT IN PERSONAL INJURY.
WARNING
!DO NOT CLEAN ANY SURFACE WITH PETROLEUM-BASED SOLVENTS SUCH
AS ACETONE OR M.E.K. (METHYL ETHYL KETONE). THESE SOLVENTS WILL
REMOVE PAINT AND CAUSE PERMANENT DAMAGE TO VINYL AND PLASTIC
SURFACES. USING THESE SOLVENTS ALSO PRESENTS A DANGER TO
PERSONNEL IF THEY ARE OPENED IN A POORLY VENTILATED ROOM.
WARNING
!TO AVOID THE RISK OF ELECTRIC SHOCK, THIS EQUIPMENT MUST ONLY BE
CONNECTED TO A SUPPLY MAINS WITH PROTECTIVE EARTH (=GROUND).
WARNING
!CONNECTING EQUIPMENT TO THE MULTIPLE SOCKET-OUTLET EFFECTIVELY
LEADS TO CREATING A MEDICAL ELECTRICAL SYSTEM AND THE RESULT CAN
BE A REDUCED LEVEL OF SAFETY. THE ONLY EQUIPMENT INTENDED TO BE
CONNECTED TO THE CHAIR IS THE SOLAR LITE MANUFACTURED BY GLOBAL
SURGICAL CORPORATION.
WARNING
!TO MINIMIZE THE RISKS DUE TO MOVING PARTS AND PINCH POINTS,
ENSURE THE PATIENT IS SEATED AS INTENDED WITH HEAD SUPPORTED BY
THE HEADREST, ARMS SUPPORTED BY THE ARMRESTS AND LEGS
SUPPORTED BY THE CALF REST BEFORE OPERATING THE CHAIR.
OPERATORS SHOULD KEEP THEIR FREE HAND AND THEIR FEET AWAY FROM
THE CHAIR WHILE THE CHAIR IS MOVING.

v
WARNINGS AND CAUTIONS
WARNING
!THE MAXI S 4500LX EXAMINATION CHAIR SHOULD NOT BE USED ADJACENT
OR STACKED WITH OTHER EQUIPMENT AND IF ADJACENT OR STACKED USE
IS NECESSARY, IT SHOULD BE VERIFIED THAT THE S 4500LX EXAMINATION
CHAIR OPERATES NORMALLY IN THE CONFIGURATION IN WHICH IT WILL BE
USED.
WARNING
!TO PREVENT RISK OF INJURY OR RISK OF DAMAGE TO THE CHAIR, KEEP ALL
OBJECTS AND BODY PARTS OUT FROM UNDER THE CHAIR WHILE THE CHAIR
IS IN MOTION. ALSO INSTRUCT THE PATIENT TO MINIMIZE MOVEMENT WHILE
THE CHAIR IS IN MOTION.
WARNING
!PATIENTS ENTERING OR EXITING THE CHAIR IN A POSITION OTHER THAN THE
Home/AUTO RETURN POSITION COULD BE INJURED OR COULD CAUSE
DAMAGE TO THE EQUIPMENT.
CAUTION
!When used in clinical or residential areas near radio or TV units, this equipment
may be subjected to radio interference. To avoid adverse electromagnetic
effects, do not operate this equipment near RF energy equipment.
CAUTION
!Portable and mobile RF communications equipment can affect medical electrical
equipment.
CAUTION
!To prevent any potential electromagnetic interference, do not use any kind of
cellular phone near the equipment.
CAUTION
!This equipment needs special precautions regarding EMC (Electromagnetic
Compatibility) and needs to be installed and put into service according to the
EMC information provided in Appendix A of this manual.
CAUTION
!Replacement parts, such as cables, must be purchased through Global
Surgical Corporation to ensure proper compliance requirements. The use of other
cables may affect EMC performance. Unauthorized use of these items will void
warranty and may cause injury to you, others and/or the equipment.
CAUTION
!Do not overtighten the adjustment nut or the pins in the upper link will break.
CAUTION
!Do not use scouring materials such as SCOTCH-BRITE® on vinyl or plastic
surfaces for stubborn stains. These materials will damage these surfaces.
CAUTION
!Should you desire to use other cleaning methods, carefully try them in an inconspicuous
area to determine potential damage to the material. Never use harsh solvents or cleaners
which are intended for industrial applications. To clean stained or soiled areas, a soft
white cloth is recommended. Avoid the use of paper towels.
CAUTION
!Cleaning products may be harmful/irritating to your skin, eyes, etc. Use protective gloves
and eye protection. Do not inhale or swallow any cleaning product. Protect
surrounding area/clothing from exposure. Use in a well-ventilated area. Follow all
product manufacturers’ warnings. Naugahyde cannot be held responsible for damage
or injuries resulting from the use or misuse of cleaning products.

1-1
Section 1 General Information
1.1. Description
Intended Use: The MAXI 4500LX Examination Chair is an active, non-invasive medical device that is intended to support
patients and to assist medical professionals with patient positioning during medical examinations and procedures.
The frequently used functions include recline/incline, lift/lower, rotation lock, safety lock mode, auto return, armrest
adjustment, headrest adjustment and memory. See Section 1.2 for optional equipment.
The MAXI 4500LX Examination Chair uses a key pad for operation. This key pad is located on either side of the chair.
The chair can be reclined at, has a 345° rotation, has a seat width of 24” (610 mm) and has a height travel range of 21”-
38” (533-965 mm). There is an adjustable headrest, and the arm rests lay at when the chair is reclined. The maximum
lift/support is 400 lbs. (181 kg).
ITEM SPECIFICATION
Shipping Weight 380 lbs. (172 kg)
Base Dimensions 30 1/2” x 38” (775 mm x 965 mm)
Travel Range of Seat Height 21” to 38” (533 mm to 965 mm)
Rotation 345°
Chair Seat Angle (Fixed) 5°
Tilt Angle 0° - 15°
Trendinberg Angle 0° - 10°
Range of Chair Back Angle 100° - 180°
Maximum Lift Capacity 400 lbs. (181 kg)
Power Consumption 4 amp
Input Voltage 120v 60hz
Input Voltage with Solarlite 120v 60hz
Mode of Operation Non-Continuous Operation 10% duty cycle (2 min – 18 min)
Water Resistance IPXO
Medical Electrical (ME)
Equipment Classication Class I
ME Equipment Applied Part
Classication Type B
Operation Environment:
• Temperature
• Relative Humidity
• Air Pressure
+10° to +40°C (50° to 104°F)
0 to 95%
700 to 1060 kPa
Storage Environment:
• Temperature
• Relative Humidity
• Air Pressure
-20° to +60°C (-4° to 140°F)
0 to 95%
700 to 1060 kPa
Regulations / Standards Conforms to AAMI Std ES60601-1
& IEC 60601-1-6
C e r t i  e d t o C S A S t d s C 2 2 . 2 # s
60601-1 & 60601-1-6
FCC 47CFR 15B 15.103
Table 1-1. Chair Specications
US
91613
C
NOTICE The MAXI 4500LX Examination Chair is not intended to be used with Intravenous (IV) poles.

1.2. Optional Equipment
• S 410003 Foot Switch
A control located on the oor for the purpose of operating the chair with the foot versus the touch pad panels
on either side of the chair back. This offers a “hands-free” method to positioning the chair.
• S 900112W & S 900114W Solarlite
A light source manufactured by Global Surgical Corporation intended to be installed on the MAXI S 4500LX
Examination Chair for the purpose of illuminating the area of interest during medical procedures and
examinations. The S 900112W Solarlite has the power switch on the base. The S 900114W Solarlite has the
power switch on the head.
For instructions on the installation of the Solarlite see “Solarlite S 900 Series Exam Lights Installation Instructions”
Part # 108-008-003
Section 1 General Information
S 900112W Solarlite
S 900114W Solarlite
WARNING
!CONNECTING EQUIPMENT TO THE MULTIPLE-SOCKET-OUTLET EFFECTIVELY
LEADS TO CREATING AN MEDICAL ELECTRICAL SYSTEM AND THE RESULT CAN
BE A REDUCED LEVEL OF SAFETY. THE ONLY EQUIPMENT INTENDED TO BE
CONNECTED TO THE CHAIR IS THE SOLARLITE MANUFACTURED BY GLOBAL
SURGICAL CORPORATION.
1-2

Section 1 General Information
1-3
WARNING
!FAILURE TO FOLLOW THESE INSTRUCTIONS WILL RESULT IN DAMAGE TO THIS
CHAIR OR POSSIBLE INJURY (RECEIVER’S RESPONSIBILITY).
WARNING
!IT IS HIGHLY RECOMMENDED THAT THE INSTALLATION OF THIS EQUIPMENT
BE PERFORMED BY QUALIFIED TECHNICIANS. INSTALLATION BY UNQUALIFIED
INDIVIDUALS COULD RESULT IN PERSONAL INJURY.
WARNING
!DO NOT LIFT THE CHAIR BY THE ARMS OR HEADREST.
WARNING
!DO NOT REMOVE THE STRAP OR 2 X 4 WOOD BRACE HOLDING THE SEAT IN
PLACE UNTIL THE CHAIR IS IN IT’S PERMANENT LOCATION.
NOTICE Check for damage before discarding the shipping material and notify Global
Surgical Customer Service if shipping damage is observed.
NOTICE Leave the chair on the wooden skid until qualied technician begins installation.
1. Inspect all packaging for any visible signs of damage.
2. Make a notation on the delivery receipt if the packaging was previously opened and check the package for
proper content.
1.3. Unpacking Instructions
Figure 1-1 Unpacking
!
WARNING
DO NOT REMOVE this strap
or 2 x 4 wooden brace until
chair is in its permanent
location.
Lift under back here
Lift under seat here
DO NOT lift by the headrest
DO NOT lift by the arms
DO NOT REMOVE
UNTIL CHAIR IS PLACED IN ITS
PERMANENT LOCATION
!

1-4
Section 1 General Information
WARNING
!DO NOT REMOVE THE STRAP OR 2 X 4 WOOD BRACE HOLDING THE SEAT IN
PLACE UNTIL THE CHAIR IS IN ITS PERMANENT LOCATION.
•
3. Remove the fasteners along the bottom of the packaging that secure the chair to the wooden pallet.
4. Lift the chair off of the skid by grasping its back and seat framework. Do not lift by the arms or headrest.
See Figure 1-1
5. When chair is in its permanent position cut and remove strap.
6. Plug the chair into the wall once the chair is placed in its permanent location.
7. Press the “SEAT UP” button to lift the chair off of the 2 x 4 wood brace. Be sure to lift the chair high enough
so the bottom of the calf rest is above the 2 x 4 wood brace.
8. Slide the 2 x 4 wood brace off the chair base and set aside.
9. All shipping materials should be retained until it has been determined that the unit was not damaged during
shipment.
If damage is discovered, completed the following:
• Do not refuse shipment.
• Make a notation on the delivery receipt, and inspect the carton for damage.
• Take pictures of damage to the equipment, and to the packaging (if evident).
• If damage is discovered leave in original container and request immediate inspection from the carrier.
• Contact the Global SurgicalTM Customer Service Department at 1-800-861-3585.
• If the product is damaged electrically or mechanically and in the event the original packing materials are no
longer available, contact Global Surgical Customer Services Department.
• Refer to Section 6 of this manual regarding service and warranty and proceed as instructed.

Figure 2-1 Overall Sideview Dimensions
38”
(965 mm)
79”
(2007 mm)
52.5”
(1334 mm)
47”
(1194 mm)
21”- 38”
(553 mm - 965 mm)
Section 2 Installation
2-1
2.1. Installation of the Chair
Installation of the chair is intended to be completed by qualied Global Surgical technicians. The end user should not
attempt to move the chair off the wooden skid and/or install the chair as there is risk of personal injury as well as damage
to the chair.
Refer to Table 1-1 and Figure 2-1 for clearance requirements and determine an appropriate installation site. The
installation should be close enough to a 115 VAC 20A wall receptacle to be reached by the 13 foot (4 m) power cord.
When planning an installation site, ensure the base is positioned where accessibility is not hindered by these limits. Also
ensure the oor is level. An uneven oor may allow the chair to wobble which is undesirable during use with the patient.
WARNING
!
IT IS HIGHLY RECOMMENDED THAT THE INSTALLATION OF THIS EQUIPMENT
BE PERFORMED BY QUALIFIED TECHNICIANS. INSTALLATION BY
UNQUALIFIED INDIVIDUALS COULD RESULT IN PERSONAL INJURY.
LOCKBACKSEATTILTMEMORYHOME
LOCKBACKSEATTILTMEMORYHOME

23.5”
(597 mm)
Section 2 Installation
2-2
2.2. Installation of the Optional Footswitch
The MAXI 4500LX Examination Chair has an optional footswitch that works in conjunction with the keypad located on both
sides of the chair back. To install the optional footswitch:
1. Locate the power entry module on the base of the chair
2. Unscrew the protective dust cap
3. Insert the footswitch plug using the keyways to line up the pins. Secure by screwing the coupling ring onto the
receptacle.
Figure 2-2 Overall Top View Dimensions
38”
(965 mm)
17-5/8”
(448 mm)
30-1/2”
(775 mm)
30.2”
( 767 mm)
22”
( 559 mm)
NOTICE Do not position the chair so that it is difcult to disconnect from the power supply.

Section 3 Operation
3-1
3.2. Keypad Functions
Figure 3-1 Keypad Functions
3.1. Power On Procedure
1. Plug in the chair to initiate operation of the chair.
NOTICE Ensure the parts and accessories are properly installed per Section 2 before operating the
chair.
WARNING
!TO REDUCE THE RISK OF INJURY, THE MOTION OF THE CHAIR DUE TO AUTO-RETURN
AND MEMORY POSITIONING CAN BE STOPPED IMMEDIATELY BY PRESSING ANY KEY
ON THE KEYPAD.
LOCKBACKSEATTILTMEMORYHOME
Rotation Lock/Child Safety
Back Up
Back Down
Seat Up
Seat Down
Tilt Front
Tilt Back
Memory 1
Memory 2
Memory 3
Auto Return

3-2
Section 3 Operation
3.2.1. Rotation Lock/Safety Lock
This button controls two functions: rotation lock and safety lock mode. The rotation lock is the primary function. The
chair may be manually rotated 345° on its base. The chair is normally in the locked position. To unlock the brake, press
and release the button. Once unlocked, the chair will be free to rotate to the desired position. The button can be pressed
and released again to set the brake or the chair will automatically secure the rotational lock after a 15 second delay. The
safety lock mode is also activated using this button. This function sets the rotation lock on the chair and disables the
key pad controls and optional footswitch controls. While in safety lock mode, the lock button will be lit. To activate the
safety lock mode, press the lock button and hold for at least 3 seconds. The lock button will light up once the safety
lock mode is entered. To exit safety lock mode, press the lock button again and hold for at least 3 seconds. The lock
button light will extinguish once the safety lock mode is exited.
3.2.2. Backrest Up
This button moves the chair back from a reclined position to an upright position. The chair back will move up for as long
as the button is pressed until it reaches its travel limit of 80° above horizontal.
3.2.3. Backrest Down
This button moves the chair back from an upright position to a reclined position. The back will move down for as long as
the button is pressed until it reaches its travel limit of horizontal.
3.2.4. Seat Up
This button moves the chair up in elevation. The chair will move up for as long as the button is pressed until it reaches
its travel limit of 38” from the oor. If the rotation lock is unlocked while the chair is moving up, the seat will pause for
one second then resume moving up.
WARNING
!TO HELP PREVENT MISUSE OF THE EXAM CHAIR WHILE PATIENTS ARE LEFT
UNATTENDED, ALWAYS ENGAGE THE SAFETY LOCK BEFORE LEAVING THE
ROOM.

Section 3 Operation
3-3
3.2.5. Tilt Up
This button moves the chair upward from a Trendelenburg or tilt back position. The chair will move forward upward for
as long as the button is pressed until the chair reaches the starting chair position before tilt.
3.2.6. Tilt Back
This button moves the chair either from a at recline position (horizontal to oor) to a Trendelenburg position where the
patient’s feet are positioned above the patient’s head or from a position other than at recline to a tilt position.
See Section 3.8. If tilt back button is pressed when the chair is in the at recline position, the chair will tilt back for
as long as the tilt back button is pressed until it reaches its travel limit of 10° below horizontal. If the tilt back button
is pressed when the chair is not in the at recline position, the chair will tilt back for as long as the tilt back button is
pressed until it reaches its travel limit of 15°.
3.2.7. User-Programmable Memory Positions
The MAXI S 4500LX Examination Chair can store three memory positions. Repeat the following instructions to program
each memory position separately. To store the current chair position into memory, press and hold the desired memory
button for 3 seconds. A 1 second audible beep will conrm the memory position storage. Once the memory position
has been stored, it can be recalled by pressing and releasing the memory button. The chair will move until the stored
position has been reached. When recalling a stored position, be careful not to hold the memory button too long be-
cause pressing the button for 3 seconds or longer will store a new memory position.
3.2.8. Auto Return (Home)
The Auto Return button is used to move the seat to its lowest elevation and to move the backrest to 80° above
horizontal. This is the ideal position for patients entering and exiting the chair. When the Auto Return button is pressed
and released, the chair moves until the auto return position is reached.

Section 3 Operation
3-4
3.2.8. Pinch Points
Specic areas on the chair may have a risk of injury due to pinch points. To minimize these risks be mindful of body part
locations while the chair is moving and do not leave patient unattended while chair is in motion. See Figure 3-2 for
potential pinch point locations.
Figure 3-2 Pinch Point Locations
WARNING
!TO MINIMIZE THE RISKS DUE TO MOVING PARTS AND PINCH POINTS, EN-
SURE THE PATIENT IS SEATED AS INTENDED WITH HEAD SUPPORTED BY
THE HEADREST, ARMS SUPPORTED BY THE ARMRESTS AND LEGS SUP-
PORTED BY THE CALF REST BEFORE OPERATING THE CHAIR. OPERATORS
SHOULD KEEP THEIR FREE HAND AND THEIR FEET AWAY FROM THE CHAIR
WHILE THE CHAIR IS MOVING.
WARNING
!TO PREVENT RISK OF INJURY OR RISK OF DAMAGE TO THE CHAIR, KEEP
ALL OBJECTS AND BODY PARTS OUT FROM UNDER THE CHAIR WHILE THE
CHAIR IS IN MOTION. ALSO INSTRUCT THE PATIENT TO MINIMIZE MOVEMENT
WHILE THE CHAIR IS IN MOTION.
WARNING
!TO REDUCE THE RISK OF INJURY, THE MOTION OF THE CHAIR DUE TO AUTO-
RETURN AND MEMORY POSITIONING CAN BE STOPPED IMMEDIATELY BY
PRESSING ANY KEY ON THE KEYPAD.

Section 3 Operation
3-5
3.3. Headrest
Intended Use:
To support a patient’s head during medical examination or procedure. It is adjustable to accommodate different patients’
support needs.
3.3.1. Articulating Headrest
The Multi-Position Adjustable Headrest is positioned by manipulating the pivoting arm assembly mounted on the back of
the chair. The headrest mechanism is restrained by a movable handle which is part of the assembly. To reposition the
headrest, the following procedures apply. Refer to Figure 3-3.
Headrest Positioning
1. Grasp the handle and pull outward and upward (this releases the arm assembly) while steadying the
headrest with the other hand.
2. Move the handle forward or backward to obtain the optimum position for the patient’s head.
3. Lock the headrest into position by grasping the handle and the adjoining arm between your thumb and
ngers and squeezing tightly. The handle will snap into the restraining position.
Figure 3-3 Headrest Adjustment
1
3
2

Section 3 Operation
3-6
Tightening of Friction Lock
Occasionally the headrest may need to be tightened. The headrest mechanism relies on friction to maintain a secure
position. To tighten this adjustment, refer to Figure 3-4 and proceed as follows:
1. Unlock the headrest and move it to the extreme upward and forward position. Leave the headrest unlocked.
2. Loosen the Set Screw a couple of turns, with a 3/16 Hex Wrench.
3. Using a 3/8” hex wrench tighten the adjustment nut until it stops. Unlock the handle and turn the
adjustment nut 1/8 of a turn and re-lock the handle. If headrest is not at the desired tension, repeat the process by
unlocking the handle and adjusting another 1/8 turn.
4. If the handle is too hard to lock into place, loosen the nut and try the handle again.
5. When the adjustment is correct use one hand on the back of the chair grab the upper link and pull the headrest
backward towards you. If the headrest does not move then the adjustment nut is secure.
6. Re-tighten the set screw using a 3/16” hex wrench.
Figure 3-4 Tightening the Friction Lock
Upper Link
Headrest Handle
Head Rest
Handle in locked
position
Handle in un-locked
position
Adjustment
Nut
Set Screw
CAUTION
!Do not over tighten the adjustment nut or the pins in the upper link will break.

3.3.2. Single Handed Headrest Adjustment
Figure 3-5 Single Handed Headrest Adjustment
Section 3 Operation
3-7
The headrest is adjustable to accommodate every patient. To attain an ideal headrest position, follow the steps listed
below.
1. Grasp the handle and pull upward on the release bar with one hand to unlock the arm assembly.
2. While squeezing the release bar, maneuver the headrest to the desired position then release the bar. The headrest is
now locked in place.
Release Bar