M-TI 527W User manual

User Manual
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International [phone]
www.mti.net
527, 527W, & 526 Chairs
Strength in patient care.™
 CHAIR
 CHAIR
W CHAIR

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Table of Contents iii
APPLICABLE MODEL(S).....................................................................................................................................................................................................................................................................................IV
REVISION HISTORY TABLE...........................................................................................................................................................................................................................................................................IV
GENERAL INFORMATION.....................................................................................................................................................................................................................................................................................
Purpose of this Manual.........................................................................................................................................................................................................................................................................1
Intended Use.........................................................................................................................................................................................................................................................................................................1
Symbols and Warnings..........................................................................................................................................................................................................................................................................2
Symboles et Avertissements.........................................................................................................................................................................................................................................................2
Safety Instructions.......................................................................................................................................................................................................................................................................................3
Electromagnetic Interference...................................................................................................................................................................................................................................................... 4
Electrical Requirements......................................................................................................................................................................................................................................................................4
Contraindications...........................................................................................................................................................................................................................................................................................5
Transportation and Storage Conditions........................................................................................................................................................................................................................5
Disposal of Equipment..........................................................................................................................................................................................................................................................................5
EQUIPMENT FEATURES....................................................................................................................................................................................................................................................................................... 
INSTALLATION.....................................................................................................................................................................................................................................................................................................................
Required Tools....................................................................................................................................................................................................................................................................................................7
Explanation of Instructions.............................................................................................................................................................................................................................................................7
Unpacking and Set-up ........................................................................................................................................................................................................................................................................8
OPERATION............................................................................................................................................................................................................................................................................................................................
Operating Conditions..............................................................................................................................................................................................................................................................................9
Controls....................................................................................................................................................................................................................................................................................................................10
Footrest Extension.......................................................................................................................................................................................................................................................................................11
Debris Tray Extension..............................................................................................................................................................................................................................................................................11
Slide Back Floating Arms..................................................................................................................................................................................................................................................................11
Electrical Lockout....................................................................................................................................................................................................................................................................................... 12
Mobile Base Operation ......................................................................................................................................................................................................................................................................12
Swivel Base Operation........................................................................................................................................................................................................................................................................13
LIST OF ACCESSORIES......................................................................................................................................................................................................................................................................................
MAINTENANCE.................................................................................................................................................................................................................................................................................................................
Cleaning and Disinfection...............................................................................................................................................................................................................................................................17
Preventative Maintenance...............................................................................................................................................................................................................................................................17
Fuse Replacement Instructions ............................................................................................................................................................................................................................................17
Scu Cover Replacement Instructions........................................................................................................................................................................................................................18
Calls for Service............................................................................................................................................................................................................................................................................................19
LIMITED WARRANTY..............................................................................................................................................................................................................................................................................................
TROUBLESHOOTING GUIDE.....................................................................................................................................................................................................................................................................
SPECIFICATIONS..........................................................................................................................................................................................................................................................................................................

iv User Manual | MTI 527, 527W, & 526
APPLICABLE MODEL(S)
This manual is for the following part numbers and revisions:
PART NUMBER DESCRIPTION EFFECTIVE S/N
5270001 527 Exam/Procedure Chair, 115V 101130007 - Current
5270002 527 Exam/Procedure Chair, 230V 110202001 - Current
5270003 526 Exam/Procedure Chair, 115V 101104025 - Current
5270004 526 Exam/Procedure Chair, 230V All-Current
5270005 527W Bariatric Exam/Procedure Chair, 115V 100917002 - Current
5270006 527W Bariatric Exam/Procedure Chair, 230V 110713005 - Current
REVISION HISTORY TABLE
DATE REVISION CO#/ECO# DETAILS
01/23/2015 B CO-0069 Updating manual to latest revision of chair & new manual
format.
11/6/2017 C CO-0143 Update manual with new safety lockout procedures
12/6/2019 D CO-0187 Revised Proposition 65 Warning

GENERAL INFORMATION
Purpose of this Manual
This manual covers the safety, installation, instructions for use, and maintenance
of this equipment. It is intended that it be used by the service professional
installing the equipment and by the medical professionals who have been trained
to use it. No repair information is included with this manual because no operator
repairs are intended.
Intended Use
This equipment is intended to be used as a chair/table for general examinations
and procedures performed by medical professionals.
PRODUCT INFORMATION
Date of Purchase:
Model Number:
Serial Number:
(see “EQUIPMENT FEATURES” on page 6 for location of serial number label)
User Manual
MTI 527, 527W, & 526 Chair

2 User Manual | MTI 527, 527W, & 526
Symbols and Warnings
This manual contains Notices, Cautions, and Warnings,
which are meant to call attention to particular parts
or sections of this manual. Since safety is our first
concern, this manual should be read by all personnel
who will be operating this medical equipment. Failure
to comply with the following warnings and cautions
will void the warranty.
Symboles et Avertissements
Ce manuel contient des avis, des précautions et des
avertissements qui sont destinés à attirer l’attention
sur des pièces ou des sections de ce manuel
particulier. Parce que la sécurité est notre première
préoccupation, ce manuel doit être lu par tout le
personnel qui sera d’utiliser cet équipement médical.
Défaut de se conformer avec les avertissements et
les précautions de ce guide d’instruction annulera la
garantie.
WARNINGS/AVERTISSEMENTS
Are used to call attention to a condition, practice, or
procedure which could cause personal injury if not
followed correctly. Please become familiar with all
warnings and observe them at all times.
Sont utilisés pour attirer l’attention sur une condition,
pratique ou procédure qui pourrait causer des blessures
s’il n’est pas suivi correctement. S’il vous plaît se
familiariser avec tous les avertissements et les observer
à tout moment.
CAUTIONS/PRECAUTIONS
Are used to call attention to a condition, practice, or
procedure which could cause product damage if not
used correctly.
Sont utilisés pour attirer l’attention sur une condition,
pratique ou procédure qui pourrait causer des
dommages au produit s’il n’est pas utilisé correctement.
NOTICES/AVIS
Are used to call attention to helpful information
regarding a condition, practice, or procedure.
Sont utilisés pour attirer l’attention sur des informations
utiles concernant une condition, pratique ou de procédure.
Class 1, Type B, Medical Equipment
Proper shipping orientation for the product
Orientation d’embarquement correct pour
le produit
Product is fragile; be careful in handling
Le produit est fragile. Soyez prudent lors
de la manipulation
Protective earth ground
Terre électrique de protection
Alternating current
Le courant alternatif
15 sec
5 min
Unit duty cycle of 10% Example: (1) minute
on (9) minutes o.
Unité rapport cyclique du 10%
Product must be kept dry
Le produit doit rester sèche
Upper and lower limits of temperature
Limites haute et basse de la température
2
Maximum stacking height of palletized
units.
Hauteur maximale de la pile d’unités sur
palettes.
Indicates the presence of a dangerous
voltage/shock hazard
Indique le présence de voltage
dangereux/ de choc
Follow instructions for use
Suivez les instructions pour l’utilisation
Consult operating instructions
Consultez les instructions d’utilisation
Manufacturer of product
Fabricant de produits
Date on which the product was
manufactured
Date de fabrication

User Manual | MTI 527, 527W, &526 3
Identifies the manufacturer’s serial number
Identifie le numéro de série du fabricant
Upper and lower limits of relative humidity
Limites haute et basse de humidité relative.
Upper and lower limits of atmospheric
pressure
Limites haute et basse de la pression
atmosphérique
Location of fuses
Emplacement de fusibles
(WEEE) Waste of Electrical and Electronic
Equipment
Déchets d’équipements électriques et
électroniques
ETL listing mark
Marque ETL Listé
UL listing mark
Marque UL Listé
European Conformity mark
Marque Conformité Européenne
Connection point for the neutral conductor
Point de connexion pour le conducteur
neutre
Live conductor
Conducteur sous tension
Hospital Grade (green dot)
De qualité hôpital (point vert)
Safety Instructions
WARNING/AVERTISSEMENT
Read this manual before installation and use.
Lisez ce manuel avant l’installation et l’utilisation.
WARNING/AVERTISSEMENT
No modification of this equipment is allowed.
Aucune modification de cet équipement est autorisé.
WARNING/AVERTISSEMENT
Do not operate equipment in the presence of
flammable anesthetics.
Ne pas faire fonctionner l’équipement en présence
d’anesthésiques inflammables.
WARNING/AVERTISSEMENT
When the equipment is in motion from a programmable
position or auto return, injury may occur if the
equipment is not attended to until it comes to a
complete stop.
Lorsque l’équipement est en mouvement à cause d’une
position programmable or retour automatique, blessure
peut se produire si l’équipement n’est pas regardé
jusqu’à ce qu’il arrive à un arrêt complet.
WARNING/AVERTISSEMENT
Verify equipment, patient, and other objects are in a safe
condition before operating the equipment.
Vérifiez l’équipement, patient, et d’autre objets sont dans
un état sûr avant d’utiliser l’équipement.
WARNING/AVERTISSEMENT
Verify controls, cords, and other parts of the equipment
do not create a tripping or other safety hazard for
operator or patient.
Vérifiez les contrôles, les cordons et les autres
parties de l’équipement ne créent pas un risque de
trébuchement ou d’autres risques d’accident pour
l’opérateur ou le patient.
WARNING/AVERTISSEMENT
Turn the lockout switch to the o position to
prevent unintentional chair movements caused by
electromagnetic interference or radio frequency
interference from other equipment or from accidental
activation of the chair controls. Failure to do so may

4 User Manual | MTI 527, 527W, & 526
result in personal injury. Turning the lockout switch o
will not prevent non-powered motion.
Tourner l’interrupteur de verrouillage sur la
position arrêt pour prévenir des mouvements
non intentionnels de l’équipement causés par
l’interférence électromagnétique ou des interférences
radio-fréquence d’un autre équipement ou par une
activation accidentelle des commandes de chaise. Tout
manquement à ces directives peuvent provoquer des
blessures graves. Le fait de désactiver le verrouillage
n’empêche pas le mouvement non alimenté.
WARNING/AVERTISSEMENT
Backrest, seat, footrest, armrest, headrest, and other
parts of the equipment should only be used for their
intended purpose. MTI is not responsible for use of
components outside of their intended use.
Le repose-dos, reste de siège, repose pieds, accoudoirs,
appuie-tête et d’autres parties de l’équipement ne
doivent être utilisés conformément à leur utilisation
prévue. MTI n’est pas responsable de l’utilisation des
composants au dehors de leur utilisation prévue.
WARNING/AVERTISSEMENT
This product can expose you to chemicals including
nickel, which is known to the State of California
to cause cancer. For more information go to
www.P65Warnings.ca.gov and see www.mti.net/faqs for
details on California Proposition 65.
Ce produit peut vous exposer à des agents
chimiques, y compris le nickel, identifiés par l’État
de Californie comme pouvant causer le cancer.
Pour de plus d’informations, prière de consulter
www.P65Warnings.ca.gov et voir www.mti.net/faqs pour
les détails sur le Proposition de Californie 65.
Electromagnetic Interference
This equipment is designed and built to minimize
electromagnetic interference with other devices.
However, if interference is noticed between another
device and this equipment, do one or more of the
following:
1. Plug the equipment into an isolated circuit.
2. Remove the interfering device from the room.
3. Increase the separation between the equipment
and the interfering device.
4. Contact MTI if the electromagnetic interference
persists.
Electrical Requirements
WARNING/AVERTISSEMENT
To avoid risk of electrical shock, this equipment must be
connected to a supply mains with protective earth.
Pour éviter tout risque de choc électrique, cet
équipement doit être branché sur une prise électrique
avec la terre électrique de protection.
WARNING/AVERTISSEMENT
Grounding reliability can only be achieved when the
equipment is connected to an equivalent receptacle
marked “Hospital Only” or “Hospital Grade”.
Mise à la terre fiabilité ne peut être atteint lorsque
l’équipement est connecté à un réceptacle équivalent
marqué “Hôpital Uniquement“ ou “de Qualité Hôpital”.
WARNING/AVERTISSEMENT
When using endocardial catheters or high frequency
surgical/procedure devices, use non-conductive material
to insulate the patient from metal portions of the
equipment. Failure to comply may result in electric
shock or burns to patient.
Lors de l’utilisation de cathéters endocavitaires ou
dispositifs chirurgicale / procédure haute fréquence,
utiliser un matériau non conducteur pour isoler le
patient des parties métalliques de l’équipement. Le
non-respect peut entraîner un choc électrique ou de
brûlures pour le patient.
WARNING/AVERTISSEMENT
Connecting electrical equipment to a multiple socket-
outlet eectively leads to creating a medical electronic
system and can result in a reduced level of safety.
Connexion d’un équipement électrique à une prise
de courant multiple crée un système électronique
médicale, et peut entraîner une baisse du niveau de
sécurité.
WARNING/AVERTISSEMENT
Equipment must be positioned in normal use such that
the power cords can be easily accessed to unplug.

User Manual | MTI 527, 527W, &526 5
L’équipement doit être positionné en utilisation normale
telle que les cordons d’alimentation peuvent être
facilement accessibles à débrancher.
WARNING/AVERTISSEMENT
Equipment must be connected to an appropriate power
source when loss of power source would result in an
unacceptable risk.
L’équipement doivent être relié à une source
d’alimentation appropriée en cas de perte de la source
d’alimentation entraînerait un risque inacceptable.
WARNING/AVERTISSEMENT
Do not use a two-three plug adapter to plug the
equipment into a two conductor outlet, as grounding
reliability is not maintained.
Ne pas utiliser un adaptateur non de prise de
terre pour brancher l’équipement sur une prise à
deux conducteurs, la fiabilité de la terre n’est pas
maintenue.
WARNING/AVERTISSEMENT
Do not plug this equipment into a low power or
auxiliary outlet. This equipment must be connected to
a 115 Volt (V) outlet. If this equipment is connected to
an insucient power source, it will cause irreparable
damage to this device’s electronics.
Ne branchez pas cet équipement sur une prise de
faible puissance ou une prise auxiliaire. Cet équipement
doit être branché sur une prise de 115 Volt (V) . Si cet
équipement est connecté à une source d’alimentation
insusante, il causera des dommages irréparables à
l’électronique de cet appareil.
CAUTION/PRÉCAUTION
An appropriately rated surge protector must be used to
protect the printed circuit board. Warranty is void if this
surge protector is not used.
Un protecteur de surtension correctement classé doit
être utilisé pour protéger la carte de circuit imprimé. La
garantie est nulle si, ce protecteur de surtension n’est
pas utilisé.
NOTICE/AVIS
Removing the power supply cord at the equipment
input or wall receptacle will simultaneously isolate both
poles of the power supply.
Retrait du cordon d’alimentation à l’équipement ou à la
prise murale se isoler simultanément les deux pôles de
l’alimentation.
Contraindications
None.
Transportation and Storage Conditions
Ambient
Temperature
+10°C to +40°C
(+50°F to +104°F)
Relative
Humidity
30% to 75%
(non-condensing)
Atmospheric
Pressure
700hPa to 1060hPa
(0.69atm to 1.05atm)
Disposal of Equipment
At the end of product life, the equipment, accessories,
and other consumable goods may have become
contaminated due to normal medical use. Consult
local codes and ordinances for proper disposal of
equipment, accessories and other consumable goods.

6 User Manual | MTI 527, 527W, & 526
EQUIPMENT FEATURES
Description of 527P, 527S, 526, 527WP, & 527WS Model Chairs
527P/S - A Tri-Power Exam Chair including power lift, back, and tilt with a 650 lb (295 kg) lift capacity with
extendable footrest. The chair is 24" (61.0 cm) wide with a 19" (48.3 cm) minimum height. The chair is used for
positioning a patient for exams and procedures. The 527P stores user programmed positions.
526 - A Dual-Power Exam Chair including power back and tilt functions supporting a 650 lb (295 kg) patient with
extendable footrest. The chair is 24” (61.0 cm) wide with a 19” (48.3 cm) height. The chair is used for positioning a
patient for exams and procedures.
527WP/WS - A Tri-Power Exam Chair including power lift, back, and tilt with an 800 lb (363 kg) lift capacity with
extendable footrest. The chair is 30” (76.2 cm) wide with a 19” (48.3 cm) minimum height. The chair is used for
positioning a bariatric patient for exams and procedures. The 527WP stores user programmed positions.
Foot/Hand Control Connector
Power Cord
Foot Extension Lever
Electrical Lockout
Switch
Scu Cover
Footrest
Slide Back Arm
Backrest
Seat
Serial Number Label
Arm Release Lever
Arm Slide Lever
Debris Tr ay
Power Cord
Foot Extension Lever
Electrical Lockout
Switch
Scu Cover
Footrest
Slide Back Arm
Backrest
Seat
Serial Number Label
Foot/Hand Control Connector
Arm Release Lever
Arm Slide Lever
Debris Tr ay
/ CHAIR
W CHAIR

User Manual | MTI 527, 527W, &526 7
Required Tools
7/16" Wrench
5/8" Wrench
Wire cutters Utility Knife Flat Head
Screwdriver
Phillips
Screwdriver (#2)
Swivel Base Only:
9/16" Wrench
Explanation of Instructions
Instructions have steps which are designated by a number. Each step may also have sub-steps designated by a letter.
For example, an instruction to operate a feature may have 4 steps (1-4) and each of those steps may have sub-steps
(A-B) to be performed before moving on to the next step.
INSTALLATION
WARNING/AVERTISSEMENT
This equipment is heavy. Get help to remove it from
the shipping pallet. Use proper lifting procedures when
lifting to avoid serious back injury.
Cet équipement est lourd. Obtenir de l’aide pour le
retirer de la palette d’expédition. Utilisez les procédures
propre de levage pour le soulever pour éviter grave
blessure au dos.
WARNING/AVERTISSEMENT
After equipment is installed, verify that the
programmable positions are in safe and known
positions.
Après l’équipement est installé, vérifier que les positions
programmables sont dans des positions sûres et
connues.
CAUTION/PRÉCAUTION
To move equipment, lift only from the equipment’s main
structure.
Pour déplacer l’équipement, soulevez seulement de la
structure principale de l’équipement.
NOTICE/AVIS
If this product has been exposed to low temperatures,
allow adequate time for it to warm to room temperature
before putting it into service.
Si ce produit a été exposé à de basses températures,
laisser susamment de temps pour lui permettre de se
réchauer à température ambiante avant de le mettre
en service.
NOTICE/AVIS
Inspect the shipping boxes for visible damage. Record
on bill of lading, photograph, and report any damage
to the carrier immediately. Request an inspection by the
carrier if any concealed damage is noted.
Inspectez les boîtes d’expédition pour les dommages
visibles. Fiche sur le connaissement, prendre une
photo, et signalez les dommages dûs au transporteur
immédiatement. Demander une inspection par le
transporteur en cas de dommage caché est noté.

8 User Manual | MTI 527, 527W, & 526
Unpacking and Set-up
1. Remove shipping straps,
shipping box, and other
boxes from the pallet.
2. Remove (4) shipping bolts
with 7/16" end wrench.
3. Remove braces from the
top of baseplate. Braces will
vary for swivel/mobile bases.
4. Slide chair o pallet. To
move equipment, lift only
from the equipment’s main
structure. Recycle or re-use
pallet.
Yellow
5. Insert power cord at
the base of the chair and
secure with the clip. Plug
the power cord into the
provided surge protector.
Plug the surge protector
into an appropriately marked
receptacle.
6. Install control(s) by
aligning pins and tabs of the
male control plug with chair
receptacle by positioning
the yellow mark on the
plug body to the 12 o’clock
position relative to the
receptacle.
7. Secure the plug by
rotating the locking ring
clockwise until it engages.
Rotate it until it stops.
Steps 8 through 9 do not
apply to mobile base chairs.
8. If chair base plate needs
to be leveled, remove (4)
acorn nuts from the top
of the glides with a 5/8"
wrench, otherwise proceed
to step 10.
9. Adjust individual glides to
level the chair as needed
using a screwdriver. Reattach
the acorn nuts.
10. (Designer Upholstery
Only) Install the upholstery
flap between the back and
seat cushions, laying the
flap over the back hinges
and securing the flap to
the Velcro®strips on the
chair’s back section and seat
section.
11. (Designer Upholstery
Only) Install the seat
cushion by placing the
cushion against the hinges
and then lowering it to the
front of the seat. Verify that
the cushion is centered.
12. (Designer Upholstery
Only) Align the back cushion
with the top edge of the
back of the chair. Press
cushion down. Verify that
the cushion is centered.

User Manual | MTI 527, 527W, &526 9
GOOD
ADJUST
13. (Seamless Upholstery
Only) Align the back portion
of the back/seat cushion
with the top edge of the
back of the chair. Press
cushion down.
14. (Seamless Upholstery
Only) Align the seat portion
of the back/seat cushion
with the front edge of the
seat of the chair. Press
cushion towards foot if
necessary.
15. Raise the back of the
chair and verify alignment
of back cushion. Adjust if
necessary.
16. With the footrest
retracted, push the foot
cushion against the seat
cushion and lower the foot
cushion into place. Verify
the cushion is centered.
17. Attach the arm cushion
to a slide-back arm with the
(4) screws and lock washers
provided using a phillips
screwdriver.
18. Repeat step 17 for
opposite arm.
19. (Swivel base chairs only.)
Remove swivel bolt with
9/16” wrench.
Keep the bolt for use while
the chair is not powered.
OPERATION
Operating Conditions
Ambient Temperature +10°C to +40°C (+50°F to +104°F)
Relative Humidity 30% to 75% (non-condensing)
Atmospheric Pressure 700hPa to 1060hPa (0.69atm to 1.05atm)

10 User Manual | MTI 527, 527W, & 526
Controls
Foot Control/Hand Control
ITEM DESCRIPTION FUNCTION
1 Lift Pedal/Button Raises or lowers the chair top by pressing the desired direction
2 Back Pedal/Button Raises or lowers the backrest by pressing the desired direction
3 Tilt Pedal/Button Decreases or increases the angle of the seat by pressing the desired direction
4 Program Buttons Moves the chair to a user programmed position
5 Stop Button Stops all movement of chair
6 Enter Button Press this button followed by a program button to save the current position of the chair
as a programmed position.
7 Return Button Returns the chair to the home position (Lift Down, Tilt Down, and Back Up)
8 Swivel Button Pressing and releasing the swivel button within two seconds will allow the chair to
swivel for six seconds or until the swivel or any other button is pressed. Pressing and
holding the swivel button for longer than two seconds will allow the chair to swivel
until the button is released. See “Swivel Base Operation” on page 13 for more details.
9 Rapid Position
Button
Operates the Lift Up and Tilt Up functions simultaneously.
NOTICE/AVIS
For additional safety, any button will stop all motions except for the same button that was pressed to initiate movement.
Pour plus de sécurité, n’importe quel bouton peut arrêter tous les mouvements à l’exception du bouton même qui a été
pressé de commencer le mouvement.
1 2 3
54 67 8
527P/527WP
12
3non
functional
4
5
6
7
8
527P/527WP
12
3
57
8
9
527S/527WS
1 2 3
5
97 8
527S/527WS
2 3
5 7
2
3
4
5
6
7
526
526

User Manual | MTI 527, 527W, &526 11
Footrest Extension
To position the footrest, push down on the lever on
either side of the footrest, pull/push the footrest out/
in to the desired postion, release the lever to lock.
Debris Tray Extension
To position the debris tray, pull/push the debris tray
out/in to the desired postion.
Slide Back Floating Arms
A
B
C
A
B
A
B
C
. To attach the arm:
A. Press the lever on the
front of the arm and slide
the arm backwards.
B. Press the lever on the
spline of the arm.
C. Insert the male spline
into the female spline on
the side of the chair.
2. To slide the arm
backwards or forwards:
A. Press the lever on the
front of the arm.
B. Slide the arm.
The arm will lock in
place in the forward
and backward positions.
L’accoudoir se verrouille
en place dans des
positions avant et
arrière.
3. For prone patient
positions:
Swap the arms on each
side and insert them angled
down slightly or parallel to
the backrest.
4. To remove the arm:
A. Slide the arm backward.
B. Press the lever on the
spline arm.
C. Pull the arm straight out.
Positioning the arm in the back position will make it easier to attach or remove the arm.
Positionnement l’accoudoir en position arrière facilitent l’enlever ou remettre l’accoudoir.

12 User Manual | MTI 527, 527W, & 526
Electrical Lockout
The electrical lockout cuts power to all motors to eliminate possible EMI (electromagnetic interference) and RFI
(radio frequency interference). This switch also resets the circuit board.
1. To lock out control of the
chair:
A. Switch the toggle
switch to the OFF position
(pointing toward the
backrest of the chair).
2. To enable control of the
chair:
A. Switch the toggle
switch to the “ON” position
(pointing toward the
footrest of the chair).
NOTICE/AVIS
The toggle switch will not lock out non-powered motion such as footrest extension.
L’interrupteur à bascule ne sera pas verrouiller motion de non-motorisé tel que l’extension de repose-pieds.
LOCK
STEER
FREE
Mobile Base Operation
The low boy mobile base is a factory installed option for the 527
and 527W Model chairs.
The two casters on the patient’s right side and the rear caster
on the patient’s left side of the chair are Total Lock Casters. The
front caster on the patient’s left side is the Steering Caster.
In the FREE or STEER position, the Total Lock Casters will roll and
swivel. In the LOCK position, the Total Lock Casters will not roll or
swivel.
In the STEER position, the Steering Caster will roll but not swivel.
In the FREE position, the Steering Caster will swivel and roll. In
the LOCK position, the Steering Caster will not roll or swivel.
There are three modes for the oset locking bars. See image on
right.
STEERING MODE: When the left-hand locking bar is in the STEER position and the right-hand locking bar is in the
FREE or STEER position; the (3) Total Lock Casters will roll and swivel freely and the (1) Steering Caster will roll
but will not swivel. This mode is used for transport as the Steering Caster acts as a steering wheel to aid in easy
transport.
FREE MODE: When both oset locking bars are in the FREE position; all (4) casters will roll and swivel freely. This
position is used when you need to pull the chair away from an object in a perpendicular direction or turn the chair
with a zero radius.
LOCKED MODE: When both oset locking bars are in the LOCK position; all (4) casters will not roll or swivel. This
position is used to prevent unwanted movement of the chair.

User Manual | MTI 527, 527W, &526 13
Method 1: Auto engage mode is a swivel mode which will unlock the swivel for 6 seconds and automatically engage
the lock after 6 seconds.
1. Press the swivel button on the control and release it within two seconds.
2. Swivel enters swivel mode for 6 seconds.
3. Swivel the chair to the desired location.
4. After 6 seconds the swivel lock will automatically engage.
• If the chair is in swivel mode and the swivel button is pressed again, the swivel lock immediately engages.
• If the chair is in swivel mode and any other command button is pressed, the swivel lock immediately engages.
Method 2: Press and hold mode is a swivel mode where the swivel will unlock as long as you hold down the swivel
button on the control. Once you release the swivel button, the swivel lock will engage.
1. Press and hold swivel button on the control for longer than two seconds.
2. The chair enters swivel mode until the swivel button is released.
3. Swivel the chair to the desired location.
4. The chair stays in swivel mode as long as the swivel button is held down and immediately engages swivel lock
upon button release.
NOTICE/AVIS
The swivel will lock if the swivel is unlocked and another button is pressed.
Le pivot se bloque si le pivot est déverrouillé et un autre bouton est pressé.
NOTICE/AVIS
The swivel will unlock if the chair loses power.
Le pivot va déverrouiller si l’équipement perd son alimentation.
Swivel Base Operation
The swivel base is a factory installed option for the 527 and
527W Model chairs. See also “Controls” on page 10 of this
manual. Swivel mode is the condition when the swivel lock is
unlocked and the chair can swivel freely.
There are two methods to operate the swivel on the 527 and
527W Model chairs. Follow the step(s) below for the desired
method.

14 User Manual | MTI 527, 527W, & 526
LIST OF ACCESSORIES
DESCRIPTION USE RESTRICTIONS
Bed Rails, Swing Up/Down (Floating) Provides a vertical surface to secure
patient.
Bed Rails, Swing Up/Down (Mounted
to Slide Back Floating Arms)
Provides a vertical surface to secure
patient.
Requires Slide Back Floating Arms.
Casters with individual locks Provides field installable casters to
make chair mobile.
Not available on swivel base chairs.
Not available on 527W chairs.
Caster Base Provides Field installable casters to
make chair mobile.
Not available on swivel base chairs.
Not available on 527W chairs.
Corded Hand Control w/Mount Provides an additional control for
the chair and mount for mounting
the hand control on the side of the
footrest.
Hand/Forearm Procedure Table
(Floating)
Provides an articulating surface for
patient’s arms.
IV Rod and Holder Provides an adjustable IV rod
mounted to Base Mounting Rail.
Requires Base Mounting Rail
IV Rod and Holder for 1” Post Provides an adjustable IV rod. Requires 1” post accessory.
IV Rod and Holder for 2” Post Provides an adjustable IV rod. Requires 2” post accessory. Not
available on 527W chairs.
Leg Wrapping Support Used for wrapping a patient’s foot
and leg.
Leveling Glides, 2” Provides taller leveling glides than
standard.
Not available on mobile or swivel
base chairs.
Light, Exam Light Provides lighting during patient
procedures.
Requires 1” Post.
Light, Surgery, EXCEL Centurion Provides lighting during patient
procedures.
Requires 2” post accessory. Not
available on 527W chairs.
Light, Surgery, MI 1000 LED Provides lighting during patient
procedures.
Requires 2” post accessory. Not
available on 527W chairs.
Mayo Tray, 1” Post Mounted Provides a tray for the placement of
small instruments and other items.
Mayo Tray, 1” Post Mounted with
Exam Light Adapter
Provides a tray for the placement of
small instruments and other items
with a light adapter for an exam
light.
Mobile Caster Base, Low Boy Changes a standard chair into a
mobile base.
Factory installed. Not available with
swivel base chairs.
Mobile Caster Cart Provides a field installable mobile
base.
Not available on swivel base chairs.
Not available on 527W chairs.

User Manual | MTI 527, 527W, &526 15
LIST OF ACCESSORIES
DESCRIPTION USE RESTRICTIONS
Outlet Kit, Duplex, 115V (RH/LH) Provides power for 115V accessories. Left and Right hand versions
Not ambidexterous
Paper Roll Holder Used for mounting a paper roll to
the back of the chair for 21” (53.3 cm)
paper.
Accomodates 18” (45.7 cm) or 21”
(53.3 cm) paper rolls.
Patient Monitor Tray Mounts a patient monitor for viewing
during procedures.
Requires 2” Post. Not availble on
527W Chairs
Post, 1” Provides a post for mounting a 42”
Lumerus light.
Post, 2” Provides a post for mounting surgery
lights and other accessories.
Not available on 527W chairs.
Power Cord with 90 degree plug, 3’ Provides a 3’ power cord with a 90
degree plug.
Not available on mobile or swivel
base chairs.
Rail, Base Mounting Provides a rail for mounting an IV
pole or accessory bracket.
Cannot be used with other base
mounted accessories.
Restraint Strap, Leg Provides a strap to secure the
patient’s legs.
Shoe Tray, Post Mounted Provides a tray for a patient’s shoes. Requires Post Mounted Tray or Post
Mounted Light.
Shoe Tray, Chair Mounted Provides a tray for a patient’s shoes. Can’t be used with Post Mounted
Tray or Post Mounted Light.
Visual Block Curtain, Chair Mounted Provides a shield used to hide
procedures from the patient’s view.
Can’t be used with Post Mounted
Tray or Post Mounted Light.
Visual Block Curtain, Post Mounted Provides a shield used to hide
procedures from the patient’s view.
Requires Post Mounted Tray or Post
Mounted Light.
Visual Block & Shoe Tray, Chair
Mounted
Provides a shield used to hide
procedures from the patient’s
view combined with a tray for the
patient’s shoes.
Can’t be used with Post Mounted
Tray or Post Mounted Light.
Visual Block & Shoe Tray, Post
Mounted
Provides a shield used to hide
procedures from the patient’s
view combined with a tray for the
patient’s shoes.
Requires Post Mounted Tray or Post
Mounted Light.

16 User Manual | MTI 527, 527W, & 526
MAINTENANCE
WARNING/AVERTISSEMENT
Ther are no user serviceable parts inside. Refer all servicing
to a qualified service technician.
Aucune pièce interne ne peut être réparée par l’utilisateur.
Adressez-vous à un technicien qualifié.
WARNING/AVERTISSEMENT
After equipment is serviced, verify programmable positions
are safe and known positions.
Après l’équipement est révisé, vérifier les positions
programmables sont des positions sûres et connues.
WARNING/AVERTISSEMENT
The Control of Hazardous Energy (lockout/tagout)
§1910.147 procedure must be followed to disable
equipment, preventing the release of hazardous energy
while performing servicing and maintenance activities.
La procédure de La Maîtrise des Énergies Dangereuses
(lockout/ déconsignation) § 1910.147 doit être suivie pour
désactiver l’équipement, empêchant la libération des
énergies dangereuses lors de l’exécution des activités de
maintenance et d’entretien.
CAUTION/PRÉCAUTION
This equipment may be damaged by solvents and dyes.
Immediately remove any fluids spilled on the equipment.
Cet équipement peut être endommagé par des solvants et
des colorants. Retirer immédiatement tout liquide renversé
sur l’équipement.
CAUTION/PRÉCAUTION
Avoid contact with sharp or pointed objects. Do not
place hard surface objects on the upholstery surfaces as
temporary indentations or impressions in the upholstery
cover will result. Prolonged contact with a hard or irregular
shaped object may make the impression semi-permanent.
Éviter le contact avec des objets pointus ou tranchants.
Ne placez pas d’objets de surfaces dures sur les surfaces
de capitonnage d’ameublement, comme des empreintes
temporaires ou des impressions dans le couvercle du
capitonnage en résulteront. Un contact prolongé avec
un objet en forme de disque ou irrégulière peut faire
l’impression semi-permanente.
CAUTION/PRÉCAUTION
Any sprayed disinfectant or cleaning solution should be
wiped up immediately after application and not let to
stand. A small sample area should be tested before any
large application of any cleaner/disinfectant.
Tout désinfectant pulvérisé ou solution de nettoyage
doivent être essuyés immédiatement après l’application
et ne pas laisser reposer. Une petite zone de l’échantillon
doit être testé avant toute application complète d’un
nettoyant/désinfectant.
CAUTION/PRÉCAUTION
Avoid prolonged direct sunlight exposure to preclude color
change of the plastic.
Évitez l’exposition directe au soleil prolongée pour
empêcher le changement de couleur des éléments en
plastique.
NOTICE/AVIS
MTI recommends cleaning the equipment frequently.
MTI recommande de nettoyer l’équipement fréquemment.