Stryker IsoTour User manual

IIssooTToouurr™™ PPuummpp
MMaaiinntteennaannccee MMaannuuaall
2874
EN
2874-009-002 Rev A.1 2019/08

SSyymmbboollss
Refer to instruction manual/booklet
Operating instructions/Consult instructions for use
General warning
Caution
Cardiopulmonary resuscitation (CPR), disconnection point
Catalogue number

Serial number
Batch code
Manufacturer
Authorized representative in the European Community
European medical device
2797
CE mark
Mass of product
In accordance with European Directive 2012/19/EU on Waste Electrical and Electronic
Equipment (WEEE) as amended, this symbol indicates that the product should be collected
separately for recycling. Do not dispose of as unsorted municipal waste. Contact local distributor
for disposal information. Ensure infected equipment is decontaminated prior to recycling.
Indicates that this product does not contain toxic and hazardous substances or elements above
the maximum concentration of all 6 values defined by the China RoHS legislation. This product is
an environmentally friendly product which can be recycled and reused.
Class II electrical equipment: equipment in which protection against electric shock does not rely
on basic insulation only, but in which additional safety precautions such as double insulation or
reinforced insulation are provided, there being no provisions for protective earthing or reliance
upon installation conditions.
Type B applied part - 2872 IIssooTToouurr support surface
Fuse
2874-009-002 Rev A.1 EN

E347196
MEDICAL
ELECTRICAL
EQUIPMENT
Medical Equipment Classified by Underwriters Laboratories Inc. With Respect to Electric Shock,
Fire, and Mechanical Hazards Only in Accordance with ANSI/AAMI ES60601-1:2012, IEC
60601-1-8:2012, and CAN/CSA-C22.2 No. 60601-1:16.
IIPP2211 Solids: Protection from touch by fingers and objects greater than 12 mm
Liquids: Protection from the fall of vertical water drops
 
For US Patents see www.stryker.com/patents
Keep dry
6
Do not stack more than 6 high
This side up
Fragile
Do not use sharp objects to open the package
EN 2874-009-002 Rev A.1

TTaabbllee ooff CCoonntteennttss
Warning/Caution/Note Definition ..............................................................................................................................3
Summary of safety precautions ................................................................................................................................3
Introduction ...............................................................................................................................................................4
Product description .................................................................................................................................................4
Intended use ..........................................................................................................................................................4
Expected service life ...............................................................................................................................................4
Disposal/recycle .....................................................................................................................................................4
Contraindications....................................................................................................................................................4
Specifications .........................................................................................................................................................5
Environmental conditions ....................................................................................................................................5
Product illustration ..................................................................................................................................................6
Contact information.................................................................................................................................................6
Serial number .........................................................................................................................................................7
Date of manufacture................................................................................................................................................7
Service ......................................................................................................................................................................8
Protecting against electrostatic discharge (ESD) .......................................................................................................8
Powering off the pump.............................................................................................................................................8
Fuse replacement ...................................................................................................................................................8
Bumper replacement...............................................................................................................................................8
Foot replacement....................................................................................................................................................9
Filter replacement ...................................................................................................................................................9
LCD screen replacement .......................................................................................................................................10
Transport handle replacement ...............................................................................................................................10
Hook replacement.................................................................................................................................................11
Front pump housing replacement ...........................................................................................................................11
Power supply replacement.....................................................................................................................................12
Power inlet replacement ........................................................................................................................................13
PCB assembly replacement...................................................................................................................................13
LED board replacement.........................................................................................................................................14
Solenoid/valve replacement...................................................................................................................................14
Pump replacement................................................................................................................................................15
Access diagnostic mode.........................................................................................................................................16
Preventive maintenance .........................................................................................................................................17
Troubleshooting ......................................................................................................................................................18
Power cords ............................................................................................................................................................19
Pump housing assembly 2874-007-017.................................................................................................................20
Top panel assembly 2874-007-018........................................................................................................................21
Hook assembly 2874-007-019................................................................................................................................22
Bumper pack 2874-007-020 ...................................................................................................................................23
Pump housing rubber foot assembly 2874-007-022 ..............................................................................................24
Compressor assembly 2874-007-023 ....................................................................................................................25
Power supply assembly 2874-007-024 ..................................................................................................................26
PCBA assembly 2874-007-025 ..............................................................................................................................27
HEPA filter 2874-007-026.......................................................................................................................................28
Air filter guard 2874-007-027..................................................................................................................................29
3 way digital valve assembly 2874-007-028...........................................................................................................30
5 way digital valve assembly 2874-007-029...........................................................................................................31
Front LED module assembly 2874-007-030...........................................................................................................32
Handle assembly 2874-007-031 ............................................................................................................................33
Mattress hose assembly 2874-007-034 .................................................................................................................34
2874-009-002 Rev A.1 1 EN

EMC information .....................................................................................................................................................35
EN 2 2874-009-002 Rev A.1

WWaarrnniinngg//CCaauuttiioonn//NNoottee DDeeffiinniittiioonn
The words WWAARRNNIINNGG,CCAAUUTTIIOONN, and NNOOTTEE carry special meanings and should be carefully reviewed.
WWAARRNNIINNGG
Alerts the reader about a situation which, if not avoided, could result in death or serious injury. It may also describe
potential serious adverse reactions and safety hazards.
CCAAUUTTIIOONN
Alerts the reader of a potentially hazardous situation which, if not avoided, may result in minor or moderate injury to the
user or patient or damage to the product or other property. This includes special care necessary for the safe and effective
use of the device and the care necessary to avoid damage to a device that may occur as a result of use or misuse.
NNoottee -- Provides special information to make maintenance easier or important instructions clearer.
SSuummmmaarryy ooff ssaaffeettyy pprreeccaauuttiioonnss
Always read and strictly follow the warnings and cautions listed on this page. Service only by qualified personnel.
WWAARRNNIINNGG
• Do not modify or change this device. Service should only be completed by qualified personnel. Failure could result in
injury and void your warranty.
• The use of accessories, transducers, and cables, other than those specified or provided by the manufacturer, could
result in increased electromagnetic emissions or decreased electromagnetic immunity and result in improper operation.
• Portable RF communications equipment, including peripherals such as antenna cables and external antennas, should
be no closer than 12 inches (30 cm) to any part of IIssooTToouurr, including cables specified by the manufacturer.
• Avoid stacking or placing equipment adjacent with other equipment to prevent improper operation of the products. If
such use is necessary, carefully observe stacked or adjacent equipment to make sure that they are operating properly.
CCAAUUTTIIOONN
• Improper usage of the product can cause injury to the patient or operator. Operate the product only as described in this
manual.
• Do not modify the product or any components of the product. Modifying the product can cause unpredictable operation
resulting in injury to patient or operator. Modifying the product also voids its warranty.
• Always use ESD protective equipment before opening antistatic bags and servicing electronic parts.
• Do not place unprotected circuit boards on the floor.
• Always use a grounded static strap to prevent static coming into contact with the PCB assembly.
2874-009-002 Rev A.1 3 EN

IInnttrroodduuccttiioonn
This manual assists you with the operation or maintenance of your Stryker product. Read this manual before operating or
maintaining this product. Set methods and procedures to educate and train your staff on the safe operation or maintenance
of this product.
CCAAUUTTIIOONN
• Improper usage of the product can cause injury to the patient or operator. Operate the product only as described in this
manual.
• Do not modify the product or any components of the product. Modifying the product can cause unpredictable operation
resulting in injury to patient or operator. Modifying the product also voids its warranty.
NNoottee
• This manual is a permanent part of the product and should remain with the product even if the product is sold.
• Stryker continually seeks advancements in product design and quality. This manual contains the most current product
information available at the time of printing. There may be minor discrepancies between your product and this manual. If
you have any questions, contact Stryker Customer Service or Technical Support at 1-800-327-0770.
PPrroodduucctt ddeessccrriippttiioonn
The Stryker Model 2874, IIssooTToouurr™™ PPuummpp is an electric pump for use with the Stryker Model 2872, IIssooTToouurr Support
Surface. This pump provides Low Air Loss for the IIssooTToouurr standard or the premium support surface.
The pump, when connected to the premium support surface delivers the air to inflate and deflate the air bladders for the
TTrruuTTuurrnn™™ function.
IInntteennddeedd uussee
The IIssooTToouurr PPuummpp is for use with the IIssooTToouurr support surface assists in the prevention and treatment of pressure injuries
or pressure ulcers (all stages, Unstageable injury, and Deep tissue injury). We recommend you implement this product in
combination with clinical evaluation of risk factors and skin assessments made by a healthcare professional.
This pump is for use with the IIssooTToouurr support surface in an acute care setting. This may include critical care, step down,
progressive care, med/surg, sub-acute care, and post anesthesia care unit (PACU), or other locations as prescribed by a
physician. Operators of this pump include healthcare professionals (such as nurses, nurse aids, or doctors).
This product is not intended to be sterile, does not include a measuring function, and is not for use in a home healthcare
environment.
EExxppeecctteedd sseerrvviiccee lliiffee
The IIssooTToouurr PPuummpp has a 5 year expected service life under normal use, conditions, and with appropriate periodic
maintenance.
The air hose has a 2 year expected service life under normal use, conditions, and with appropriate periodic maintenance.
DDiissppoossaall//rreeccyyccllee
Always follow the current local recommendations and/or regulations governing environmental protection and the risks
associated with recycling or disposing of the equipment at the end of its useful life.
CCoonnttrraaiinnddiiccaattiioonnss
The TTrruuTTuurrnn feature is not intended for use with patients that have unstable spine.
EN 4 2874-009-002 Rev A.1

NNoottee -- TTrruuTTuurrnn requires the IIssooTToouurr pump to be connected for use. The TTrruuTTuurrnn feature is visually identified by the icons
on the IIssooTToouurr pump (Figure 1).
FFiigguurree 11 –– TTrruuTTuurrnn iiccoonn
SSppeecciiffiiccaattiioonnss
Height 17.25 in. 43.8 cm
Width 9.25 in. 23.5 cm
Depth 7.25 in. 18.4 cm
Weight 16.3 lb 7.4 kg
Interface control panel LCD
Input voltage 100-240V
Current 0.7 Amps
Input frequency 50/60 Hz
Noise level <50 dba
Mode of operation Continuous
Power cord Short 3.2 ft 1 m
Long 16.4 ft 5 m
Compliance IEC 60601-1 3.1 Edition; RoHS Directive 2002/95/EC
Reach; IEC 60601-1-8:2012, IEC 60601-1-2:2014
Compatible with bed frame IIssooTToouurr standard and
premium support surface
with an IIssooTToouurr pump
33000022 SS33™™,33000055 SS33™™,IInnTToouucchh™™,SSppiirriitt SSeelleecctt™™
EEnnvviirroonnmmeennttaall ccoonnddiittiioonnss
EEnnvviirroonnmmeennttaall ccoonnddiittiioonnss OOppeerraattiioonn SSttoorraaggee aanndd ttrraannssppoorrttaattiioonn
Ambient temperature
Relative humidity (non-condensing)
Atmospheric pressure
2874-009-002 Rev A.1 5 EN

Stryker reserves the right to change specifications without notice.
PPrroodduucctt iilllluussttrraattiioonn
C
L
I
K
A
B
C
E
F
D
G
H
J
AGraphical user interface GBack pump house
B Status indicators H Power inlet
CBumpers I Anti-vibration foot
DTransport handle JHose port
E Hooks K Hose
FHEPA filter LFront pump housing
CCoonnttaacctt iinnffoorrmmaattiioonn
Contact Stryker Customer Service or Technical Support at: 1-800-327-0770.
Stryker Medical
3800 E. Centre Avenue
Portage, MI 49002
USA
NNoottee -- The user and/or the patient should report any serious product-related incident to both the manufacturer and the
Competent authority of the European Member State where the user and/or patient is established.
To view your operations or maintenance manual online, see https://techweb.stryker.com/.
Have the serial number (A) of your Stryker product available when calling Stryker Customer Service or Technical Support.
Include the serial number in all written communication.
EN 6 2874-009-002 Rev A.1

SSeerriiaall nnuummbbeerr
A
DDaattee ooff mmaannuuffaaccttuurree
The year of manufacture is the first four digits of the serial number.
2874-009-002 Rev A.1 7 EN

SSeerrvviiccee
PPrrootteeccttiinngg aaggaaiinnsstt eelleeccttrroossttaattiicc ddiisscchhaarrggee ((EESSDD))
CCAAUUTTIIOONN
• Always use ESD protective equipment before opening antistatic bags and servicing electronic parts.
• Do not place unprotected circuit boards on the floor.
NNoottee -- Always ship back circuit boards to Stryker in the same antistatic bags that the new boards were originally shipped in.
The electronic circuits in the product are completely protected from static electricity damage when factory assembled.
Always use adequate static protection when servicing the electronic systems of the product. All service personnel must use
static protection whenever they are touching wires.
Sample antistatic protection equipment includes:
• 1 antistatic wrist strap
• 1 grounding plug
• 1 test lead with a banana plug on one end and an alligator clip on the other end
Make sure that you follow the ESD manufacturer’s instructions for appropriate protection against static discharge.
PPoowweerriinngg ooffff tthhee ppuummpp
Press the power button and hold for 2 seconds to power off the pump.
NNoottee
• Allow the support surface to deflate before you unplug the power cord.
• For optional deflation, remove the CPR plug from the support surface.
FFuussee rreeppllaacceemmeenntt
Fuse rating: F2AH250V
TToooollss rreeqquuiirreedd::
• Flat head screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a flat head screwdriver, remove and save the fuse cover located below the power inlet.
5. Remove and dispose of the fuse.
6. Reverse the steps to reinstall.
7. Verify proper operation before you return the product to service.
BBuummppeerr rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• Pick
EN 8 2874-009-002 Rev A.1

PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump with the front pump housing side down on a work surface.
4. Using a pick, remove and discard the bumper from the back pump housing (
Bumper pack 2874-007-020 (page 23)).
5. Place and press the bumper in place.
FFoooott rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• 6 mm socket
• Ratchet
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove the six screws that secure the back pump housing to the front pump housing. Save the
screws.
5. Using two hands, rotate the pump assembly to the right so the front is on your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. Using a ratchet and a 6 mm socket, remove the six nuts that secure the foot to the front pump housing. Save the nuts.
8. Remove and discard the foot.
9. Reverse the steps to reinstall (
Pump housing rubber foot assembly 2874-007-022 (page 24)).
10.Run and pass the diagnostic test.
11.Verify proper operation before you return the product to service.
FFiilltteerr rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the screw that secures the filter access door.
5. Remove and save the access door.
6. Remove and dispose of the filter.
7. Reverse the steps to reinstall (
Air filter guard 2874-007-027 (page 29)).
8. Verify proper operation before you return the product to service.
2874-009-002 Rev A.1 9 EN

LLCCDD ssccrreeeenn rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• #2 Phillips screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. Unplug all cables from the PCB assembly.
NNoottee -- Pay attention to the hose locations for reinstallation.
8. Using a #2 Phillips screwdriver, remove the two screws that secure the support bracket holding the PCB assembly and
the screen to the front pump housing. Save the screws.
9. Using a #2 Phillips screwdriver, remove and save the three screws that secure the board to the PCB assembly to the
screen.
10.Using a #2 Phillips screwdriver, remove and save the four screws that secure the LCD screen and gasket to the front
pump housing.
11.Remove and discard the LCD screen and gasket.
12.Reverse the steps to reinstall (
Top panel assembly 2874-007-018 (page 21)).
13.Run and pass the diagnostic test.
14.Verify proper operation before you return the product to service.
TTrraannssppoorrtt hhaannddllee rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• #2 Phillips screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front pump housing is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. Using a #2 Phillips screwdriver, remove and save the five screws that secure the back board to the back pump hosing.
8. Remove and save the back board.
9. Using a #2 Phillips screwdriver, remove and save the four screws that secure the handles to the back pump housing.
10.Remove and discard the handle.
11.Reverse the steps to reinstall (
Handle assembly 2874-007-031 (page 33)).
12.Run and pass the diagnostic test.
EN 10 2874-009-002 Rev A.1

13.Verify proper operation before you return the product to service.
HHooookk rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• Stubby #2 Phillips screwdriver
• Pick
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a pick, remove and discard the information label on the hook assembly.
5. Using a #2 Phillips, remove the screw (under the label removed in step 4) that secure the hook assembly to the back
pump housing.
6. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
7. Using two hands, rotate the pump assembly to the right so the front is to your left.
8. Separate the front and back pump housing. Place the back pump housing down on the work surface.
9. Unplug the power input cable and the power output cable from the power supply.
10.Using one hand to hold the fish paper and a #2 Phillips screwdriver, remove and save the four Phillips screws and
washers that secure the power supply to the main frame.
11.Remove the power supply to the side and fish paper.
12.Using a #2 Phillips screwdriver, remove and save the four screws that secure the pump frame to the main frame and set
aside.
13.Using a #2 Phillips screwdriver remove and save the six screws that secure the hook assembly to the back pump
housing.
14.Remove and discard the hook assembly.
15.Reverse the steps to reinstall (
Hook assembly 2874-007-019 (page 22)).
16.Run and pass the diagnostic test.
17.Verify proper operation before you return the product to service.
FFrroonntt ppuummpp hhoouussiinngg rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• #2 Phillips screwdriver
• Stubby #2 Phillips screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
2874-009-002 Rev A.1 11 EN

6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
CCAAUUTTIIOONN -- Always use a grounded static strap to prevent static coming into contact with the PCB assembly.
7. Unplug all cables from the PCB assembly.
NNoottee -- Pay attention to the cable connection locations for reinstallation.
8. Using a #2 Phillips screwdriver, remove the two screws that secure the support bracket holding the PCB assembly and
the screen to the front pump housing. Save the screws and support bracket.
9. Using a #2 Phillips screwdriver, remove and save the three screws that secure the board to the screen.
10.Grasp each of the air hoses individually and pull out from the mattress hose connector to detach each hose from the
connector.
NNoottee -- Pay attention to the air hose connection locations for reinstallation.
11.Grasp each of the pressure transducer hoses individually and pull out from the mattress hose connector to detach each
hose from the connector.
NNoottee -- Pay attention to the pressure transducer hose connection locations for reinstallation.
12.Using a stubby #2 Phillips screwdriver, remove the four screws that secure the LED board assembly to the front pump
housing assembly. Save the screws.
13.Remove the PCB assembly.
14.Remove and discard the front pump housing.
15.Reverse the steps to reinstall (
Pump housing assembly 2874-007-017 (page 20)).
16.Run and pass the diagnostic test.
17.Verify proper operation before you return the product to service.
PPoowweerr ssuuppppllyy rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• #2 Phillips screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. Grasp the hose at the manifold coming from the pump and pull to remove the hose from the manifold.
8. Unplug the power input cable and the power output cable from the power supply.
9. Using one hand to hold the fish paper and a #2 Phillips screwdriver, remove the four Phillips screws and washers that
secure the power supply to the main frame. Save the screws, washers, and fish paper.
10.Remove and discard the power supply.
11.Reverse the steps to reinstall (
Power supply assembly 2874-007-024 (page 26)).
12.Run and pass the diagnostic test.
13.Verify proper operation before you return the product to service.
EN 12 2874-009-002 Rev A.1

PPoowweerr iinnlleett rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• Flat blade screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. Unplug the power inlet from the power supply.
8. Using a flat blade screwdriver and your finger, push out on the power inlet while you push in on each of the power inlet
locks to loosen the power inlet from the front pump housing. Repeat on the other side to remove.
9. Remove and discard the power inlet.
10.Reverse the steps to reinstall (
Pump housing assembly 2874-007-017 (page 20)).
11.Run and pass the diagnostic test.
12.Verify proper operation before you return the product to service.
PPCCBB aasssseemmbbllyy rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• #2 Phillips screwdriver
• ESD
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
CCAAUUTTIIOONN -- Always use a grounded static strap to prevent static coming into contact with the PCB assembly.
7. Unplug all cables from the PCB assembly.
NNoottee -- Pay attention to the cable connection locations for reinstallation.
8. Grasp each of the pressure transducer hoses individually and pull out from the PCB assembly to detach each hose from
the PCB assembly.
NNoottee -- Pay attention to the pressure transducer hose connection locations for reinstallation.
9. Using a #2 Phillips screwdriver, remove the two screws that secure the support bracket that hold the PCB assembly and
the screen to the front pump housing. Save the screws and support bracket.
10.Using a #2 Phillips screwdriver, remove and save the three screws that secure the board to the screen.
2874-009-002 Rev A.1 13 EN

11.Remove and discard the PCB assembly.
12.Reverse the steps to reinstall (
PCBA assembly 2874-007-025 (page 27)).
13.Run and pass the diagnostic test.
14.Verify proper operation before you return the product to service.
LLEEDD bbooaarrdd rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• Stubby #2 Phillips screwdriver
•
Protecting against electrostatic discharge (ESD) (page 8)
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
CCAAUUTTIIOONN -- Always use a grounded static strap to prevent static coming into contact with the PCB assembly.
7. Unplug the LED board cable from the PCB assembly.
NNoottee -- Pay attention to the cable connection locations for reinstallation.
8. Using a stubby #2 Phillips screwdriver, remove and save the four screws that secure the LED board assembly to the
front pump housing assembly.
9. Unplug and save the cable from the LED board assembly.
10.Remove and discard the LED board assembly.
11.Reverse the steps to reinstall (
Front LED module assembly 2874-007-030 (page 32)).
12.Run and pass the diagnostic test.
13.Verify proper operation before you return the product to service.
SSoolleennooiidd//vvaallvvee rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• #2 Phillips screwdriver
• 2.5 mm hex wrench
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
EN 14 2874-009-002 Rev A.1

6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. On the solenoid/valve that needs to be replaced, make note of the hose locations first, then unplug each hose from the
valve.
NNoottee -- Pay attention to the hose locations for reinstallation.
8. Unplug the solenoid cable from the PCB.
9. Using a #2 Phillips screwdriver, remove and save the two screws that secure the valve to the valve bracket.
10.Remove and discard the solenoid/valve.
11.Reverse the steps to reinstall (
3 way digital valve assembly 2874-007-028 (page 30) or 5 way digital valve assembly
2874-007-029
(page 31)).
12.Run and pass the diagnostic test.
13.Verify proper operation before you return the product to service.
PPuummpp rreeppllaacceemmeenntt
TToooollss rreeqquuiirreedd::
• T20 Torx driver
• Wire cutters
• #2 Phillips screwdriver
PPrroocceedduurree::
1. Unplug the pump from AC power.
2. Unplug the mattress tubing from the pump.
3. Place the pump front down on a work surface.
4. Using a T20 Torx driver, remove and save the six screws that secure the back pump housing to the front pump housing.
5. Using two hands, rotate the pump assembly to the right so the front is to your left.
6. Separate the front and back pump housing. Place the back pump housing down on the work surface.
7. Grasp the hose at the manifold coming from the pump and pull to remove the hose from the manifold.
8. Using wire cutters, cut the four zip ties that secure the pump power cable to the rest of the cables.
CCAAUUTTIIOONN -- Always use a grounded static strap to prevent static coming into contact with the PCB assembly.
NNoottee
• Use care when you cut the zip ties that you do not cut or damage the cables.
• Replace the zip ties when you reinstall.
9. Unplug the pump power cable from the PCB assembly.
10.Using a #2 Phillips screwdriver, remove and save the screw that secures the pump cable p-clamp to the main frame.
Remove and save the p-clamp.
11.Using a T20 Torx driver, remove and save the four screws that secure the pump frame to the main frame.
12.Remove the spring from the hose and insert into the new pump assembly hose.
13.Remove and discard the pump assembly.
14.Reverse the steps to reinstall (
Compressor assembly 2874-007-023 (page 25)).
15.Run and pass the diagnostic test.
16.Verify proper operation before you return the product to service.
2874-009-002 Rev A.1 15 EN

AAcccceessss ddiiaaggnnoossttiicc mmooddee
PPrroocceedduurree::
1. Make sure that the support surface hoses are plugged into the pump and there is no weight on the support surface.
2. Power on the pump.
3. As the software loads, within 5 seconds of pressing the on button (Figure 2), press and hold the upper left button (Figure
3).
IsoTour
FFiigguurree 22 –– SSooffttwwaarree llooaaddiinngg
V vx.x.x.xxx
FFiigguurree 33 –– SSeerrvviiccee ssccrreeeenn aanndd vveerrssiioonn
4. Press the lower left button to start the diagnostics mode.
NNoottee -- The software version is located on the service screen (Figure 3).
5. The diagnostic results should all pass with OK.
a. If diagnostic results do not pass, investigate failed area referenced in the diagnostic test results.
EN 16 2874-009-002 Rev A.1