Stryker FL28C User manual

TECHNICAL ASSISTANCE AND PARTS
Canada: 1 888 233-6888
United States: 1 800 327 0770
Outside Canada and the United States: Contact your local representative
Manufactured by Stryker
72-1079E MM FL28C REV A February 2009
F15-44-B Printed in Canada
MAINTENANCE MANUAL
ELECTRIC MED/SURG BED
Model FL28C

TABLE OF CONTENTS
1. INTRODUCTION................................................................................................................... 5
1.1 Specifications ................................................................................................................. 5
1.2 Technical Support........................................................................................................... 6
1.3 Warning, Caution, Note Definition................................................................................... 6
1.4 Static Discharge Precautions.......................................................................................... 6
1.5 Warranty......................................................................................................................... 7
Limited Warranty .......................................................................................................... 7
To Obtain Service and/or Parts .................................................................................... 7
Return Authorization..................................................................................................... 8
Damaged Merchandise ................................................................................................ 8
1.6 Symbols.......................................................................................................................... 8
2. PREVENTATIVE MAINTENANCE ........................................................................................ 9
2.1 Bed Cleaning and Mattress Care .................................................................................... 9
2.2 Lubrication Requirements............................................................................................. 10
Actuator Screw Lubrication......................................................................................... 10
2.3 Preventative Maintenance Program.............................................................................. 12
Annual Checklist......................................................................................................... 12
Recommended Spare Parts ....................................................................................... 13
3. TROUBLESHOOTING ........................................................................................................ 15
3.1 Troubleshooting Guide.................................................................................................. 15
4. MAINTENANCE PROCEDURES ........................................................................................ 18
4.1 Siderail Maintenance Procedures ................................................................................. 18
Head Siderail Assembly Replacement........................................................................ 18
Head Rail Replacement.............................................................................................. 19
Head Siderail Mechanism Replacement..................................................................... 19
Foot Siderail Assembly Replacement......................................................................... 19
Foot Rail Replacement............................................................................................... 20
Foot Siderail Mechanism Replacement ...................................................................... 20
Siderail Outer Panel Membrane Replacement............................................................ 21
Speakerphone/Siderail Inner Panel Membrane Replacement..................................... 22
4.2 Foot Board Maintenance Procedures............................................................................ 24
Foot End Control Membrane Replacement................................................................. 24
Scale System LCD Display Replacement (Optional) .................................................. 25
4.3 Mattress Support Maintenance Procedures .................................................................. 26
Foot Section Replacement ......................................................................................... 26
Thigh Section Replacement........................................................................................ 27
Seat Section Replacement ......................................................................................... 27
Head Section Replacement........................................................................................ 28
Fowler Actuator Replacement .................................................................................... 30
Knee Gatch Actuator Replacement ............................................................................ 32
Hi-Lo Actuator Replacement....................................................................................... 33
Motor Control Board Replacement ............................................................................. 35
Nurse Call (Optional) and GEN lll (optional) Control Board Replacement................... 36

Nurse Call (Optional) Control Board Replacement......................................................36
Power Connector Replacement ..................................................................................37
Power Connector Fuse Replacement..........................................................................37
Scale Control Board/Bed Exit Buzzer (Optional) Replacement....................................38
Toroidal Transformer Replacement (100/200/220/240V International Series Beds -)..39
Load Cell Replacement (Optional) ..............................................................................40
Scale Calibration (Optional) ........................................................................................41
Verifying the Scale Accuracy ....................................................................................41
Scale Calibration ......................................................................................................42
Auto Contour Micro Switch Replacement (Optional) ...................................................44
CPR Micro Switch Replacement (Optional).................................................................46
Micro Switch Attached to the Head Section Lever ....................................................46
Micro Switch Attached to the Frame. ........................................................................47
CPR Activation Cable Replacement (Optional) ...........................................................47
CPR Pneumatic Cylinder (Optional)............................................................................47
4.4 Base Maintenance Procedures......................................................................................49
Brake/Steer Pedal Replacement.................................................................................49
Steer Wheel Caster Replacement...............................................................................50
Steer Wheel Assembly Replacement..........................................................................50
Steer Wheel Swing Arm Assembly Replacement........................................................51
Bed Caster Replacement............................................................................................52
Brake Rod Replacement.............................................................................................53
Appendix A: Circuit Diagrams ...................................................................................................54
Appendix B: Maintenance Menu: Signification of Error Codes ..................................................58

Introduction Chapter 1
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1. INTRODUCTION
This manual is designed to assist in the servicing of the Stryker's FL28C Med/Surg Beds. Read
it thoroughly before beginning any service on the bed. Qualified maintenance personnel should
be able to refer to this manual at all time when servicing the bed.
This Maintenance Manual is an integral part of the bed and should be included if the bed is sold
or transferred.
1.1 SPECIFICATIONS *
Safe Working Load** 500 lb (227 kg)
Scale System (Optional)
- Capacity
- Accuracy
- Operating Angular Range
Patients weighing up to 500 lb (227 kg)
± 2 % for weight from 100 to 500 lb (45.3 to 227 kg)
± 2 lb for weight under 100 lb (45.3 kg)
-12° to +12°
Overall Length/Width
- Siderails Up
- Siderails Down
94 5/8 x 40" (240.34 cm x 101.6 cm)
94 5/8 x 39" (240.34 cm x 99.06 cm)
Weight w/Boards 472 lb (214.1 kg)
Patient Sleep Surface 35 x 80" (89 x 203 cm) adjustable to 82" (208 cm) and
84" (213 cm)
Recommended Mattress Size
Mattress Maximum Thickness
35 x 80" (89 x 203 cm); 35 x 82" (89 x 208 cm); 35 x
84" (89 x 213 cm)
6" (15.24 cm)
Min/Max Bed Height 14 1/2 to 29" (36.8 to 73.7 cm)
Fowler Angle 0 to 61°
Knee Gatch Angle
- with Auto Contour (optional)
- without Auto Contour
0 to 24°
0 to 32°
Trendelenburg/Reverse Trendelenburg +14 to -14°
Environmental Conditions
- Transport and Storage
- Ambient Temperature
- Relative Humidity
- Atmospheric Pressure
- Operating ***
- Ambient Temperature
- Relative Humidity
- Atmospheric Pressure
-40 to 70°C (-40 to 158°F)
10 to 100%
500 to 1060 hPa
18.3 to 26.7°C (65 to 80°F)
20 to 80% without condensation
700 to 1060 hPa
Electrical Requirements**** - all electrical
requirements meet CSA C22.2 No. 601.1,
UL 60601-1 and IEC 60601-1, 60601-2-38
specifications.
100V∼, 50-60Hz, 7.5A - Two 250V, 10A Fuses
120V∼, 50-60Hz, 4.0A (9.8A w/120V Optional Auxiliary
Outlet) - Two 250V, 10A Fuses
200V∼, 50-60Hz, 3.2A -Two 250V, 6.3A Fuses
220V∼, 50-60Hz, 2.9A -Two 250V, 6.3A Fuses
240V∼, 50-60Hz, 2.7A -Two 250V, 6.3A Fuses
* Stryker pays special attention to product improvement and reserves the right to change specifications
without notice.
** The Safe Working Load specified is the sum of the mattress and accessory weight (100 lb/45.4 kg) and the
patient's weight.
*** Operating environment recommended to ensure the scale system (optional) precision.
**** The device has a 10% duty cycle.

Maintenance Manual
6
1.2 TECHNICAL SUPPORT
For questions regarding this product, contact the following Technical Service department or your
local representative:
Stryker Canada Stryker Medical
1 888 233-6888 1 800 327-0770
45, Innovation Drive 3800, East Centre Avenue
Hamilton, Ontario, L9H 7L8 Portage, MI 49002
Canada USA
1.3 WARNING, CAUTION, NOTE DEFINITION
The words WARNING, CAUTION and NOTE carry special meanings and should be carefully
reviewed.
The personal safety of the patient or user may be involved. Disregarding this information could
result in injury to the patient or user.
These instructions point out special procedures or precautions that must be followed to avoid
damaging the equipment.
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Notes provide special information to make maintenance easier or important instruction clearer.
1.4 STATIC DISCHARGE PRECAUTIONS
The electronic circuits of the bed are protected from static electricity damage only while the bed
is assembled. It is extremely important that all service personnel always use adequate static
protection when servicing the electronic components of the bed.
Static Protection Equipment
The necessary equipment for a proper static protection is:
• 1 static wrist strap
• 1 grounding plug
• 1 test lead with a banana plug on one end and an alligator clip on the other.
Static Protection Procedure
1. Unplug the bed power cord from the
wall outlet.
2. Insert the grounding plug into a
properly grounded hospital grade wall
receptacle. Plug the banana plug of
the test lead into the receptacle on
the grounding plug. Connect the
alligator clip on the other end of the test lead to a ground point on the bed.
3. Place the static control wrist strap on your wrist. Connect the clip at the other end of the
wrist strap cord to a ground point on the bed.
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GROUNDING DIAGRAM
BED

Introduction Chapter 1
7
1.5 WARRANTY
LIMITED WARRANTY
All Stryker products are guaranteed against material or manufacturing defects, improper
operation of mechanisms, and premature wear of bed components under normal use
conditions.
For questions regarding warranty, please contact the Technical Service department (see section
1.2) or your local representative.
TO OBTAIN SERVICE AND/OR PARTS
• To Require Service
For an on-site diagnosis of a malfunction by one of our Field Service Representative, contact
the Technical Service department (see section 1.2) or your local representative.
• To Order Parts
Contact the Technical Service department (see section 1.2) or your local representative and
provide the following information that can be found on the serial number plate and the
manufacturer's nameplate affixed respectively to the right side of the frame at the foot end of the
bed, and on the right side of the head end casing:
• From the serial plate, write down the serial number (A).
• From the manufacturer's nameplate, write down the bed model (B), the production number
(C), ex. FL28-XXXX, and the Customer's Guide number (D).
• Consult the parts lists and the drawings contained in the Customer Guide third section,
“Parts Lists”, to identify the defective part. Write down the information.
• Write down a description of the problem encountered while using the equipment.
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It is very important that you refer to the parts lists and drawings of the Parts Lists manual
specific to the bed needing repair.
The Technical Service representative can help you identify the parts to be replaced. However, if
an error occurs when ordering, the user remains responsible for the parts ordered.
Stryker will take back wrong parts ordered but will not assume shipping charges, and restocking
fees will be charged to the user unless a Field Service Representative has been requested for
an on-site diagnosis of the malfunction.
A
SERIAL NUMBER PLATE
C
D
B
MANUFACTURER NAMEPLATE
Figure 1.5
FOOT END
HEAD END

Maintenance Manual
8
RETURN AUTHORIZATION
Merchandise cannot be returned without approval from the Technical Service department. An
authorization number will be provided, which must be clearly printed on the returned
merchandise. Stryker reserves the right to charge shipping and restocking fees on returned
items.
DAMAGED MERCHANDISE
Claims for damaged merchandise must be made with the carrier within fifteen (15) days of
receipt of merchandise. DO NOT ACCEPT DAMAGED SHIPMENTS UNLESS SUCH DAMAGE
IS NOTED ON THE DELIVERY RECEIPT AT THE TIME OF RECEIPT. Upon prompt
notification, Stryker will file a freight claim with the appropriate carrier for damages incurred.
Claims will be limited in amount to the actual replacement cost. In the event that this information
is not received by Stryker within the fifteen (15) day period following the delivery of the
merchandise, or the damage was not noted on the delivery notice at the time of receipt, the
customer will be responsible for payment of the original invoice in full.
Claims for any short shipment must be made within five (5) days of invoice.
1.6 SYMBOLS
IPX4 Protection from liquid splash
Type B Equipment
∼
A
lternating Current
Warning, refer to accompanying documents
Fuse rating for 100V∼ and 120V∼ electric systems
6.3A 250V
Fuse rating for 200V∼, 220V∼ and 240V∼ electric
systems
Protective Earth (ground)
10A 250V

Pr eventative Maintenance Chapter 2
9
2. PREVENTATIVE MAINTENANCE
2.1 BED CLEANING AND MATTRESS CARE
When large fluid spills occur in the area of the circuit boards, cables and motors, immediately
unplug the bed power cord from the wall outlet, remove the patient from the bed and clean up
the fluid. Have maintenance completely check the bed. Fluids can have an adverse effect on
operational capabilities of any electrical product. DO NOT put the bed back into service until it is
completely dried and has been thoroughly tested for safe operation. Ensure, among other
things, that the plastic components being used as covers for the siderail mechanism arms and
the foot end casing are removed and that the parts they cover are thoroughly dried.
Do not use harsh cleaners, solvents or detergents. Equipment damage could occur. Do not
steam clean, hose off or ultrasonically clean the bed. Do not immerse any part of the bed. The
bed electrical parts may be damaged by exposure to water.
Germicidal disinfectant, used as directed, and/or Chlorine Bleach products are not considered
mild detergents. These products are corrosive in nature and may cause damage to your bed if
used improperly. If these types of products are used, ensure the beds are wiped with clean
water and thoroughly dried following cleaning. Failure to properly rinse and dry the beds will
leave a corrosive residue on the surface of the bed, possibly causing premature corrosion of
critical components. Failure to follow the above directions when using these types of cleaners
may void this product warranty.
CLEANING BEDS
Hand wash all surfaces of the bed with a soft cloth moistened with a solution of lukewarm water
and a mild detergent.
Wipe the bed clean and dry thoroughly to avoid build up of cleaning solution.
MATTRESS CARE
Inspect the mattress after each use. Discontinue use if any cracks or rips, which may allow fluid
to enter the mattress, are found in the mattress cover. Failure to properly clean the mattress, or
dispose of it if defective, may increase the risk of exposure to pathogenic substances and may
bring about diseases to the patient and user.
• Inspection
Implement local policies to address regular care, maintenance, and cleaning of mattresses and
covers. The cover cleaning procedure can be found below and on the bed label.
Inspect the mattress cover inner and outer surfaces and the zip fasteners regularly for signs of
damage. If the mattress cover is heavily stained or soiled, or is torn, remove the mattress from
service.
• Cleaning
Stains: Wash with lukewarm water using a mild detergent. Rinse with water and let dry. For
tough stains, use bleach diluted with ten parts of water.
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Maintenance Manual
10
2.2 LUBRICATION REQUIREMENTS
The only components of the bed needing periodic verification and lubrication are the four
actuator screws and the clevis pin holding the head actuator to the head section lever. They
should be checked every year and lubricated every two years.
The bed uses oil-impregnated shoulder spacers at hinge points. Do not lubricate these shoulder
spacers. When shoulder spacers are found worn, replace them.
ACTUATOR SCREW LUBRICATION
Required Tools:
No. 2 Phillips Screwdriver 1/4" Ratchet (w/6" extension) and 5/16" socket
OG2 Grease Brush Bung ee Cord
Procedure:
Clevis Pin
1. Raise the bed fully up and apply the brakes.
2. Remove if applicable the head section plastic cover (optional).
3. Fully raise the head section.
4. Remove the head board.
5. Unplug the bed power cord from the wall outlet.
6. Apply grease all over the clevis pin.
7. Fully raise and lower the head section several times to spread the grease.
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Figure 2.2
B
B

Pr eventative Maintenance Chapter 2
11
Head and Thigh Actuators
8. Raise the bed fully up and apply the brakes.
9. Remove if applicable the head and foot section plastic covers (optional).
10. Fully raise the head section and flatten the thigh section. Lower the four siderails.
11. Unplug the bed power cord from the wall outlet.
12. Lift and fold back the foot section toward the head end of the bed. Secure the foot section to
the bed using a bungee cord.
13. Using a no. 2 Phillips screwdriver, remove the four screws (A) holding the cover plate to the
frame and remove the plate. Remove the optional night light if present.
14. Using a 1/4" ratchet (w/6" extension) and a 5/16" socket, remove the two screws (B) holding
the dust tube of each actuator. Push the tube back to uncover the screw threads.
15. Using a brush, apply grease on the screw threads. Make sure the grease reaches the
bottom of the threads.
16. Replace the dust tubes.
17. Replace the cover plate.
18. Lower the foot section.
19. Plug in the bed power cord and, using the electric controls, raise and lower several times the
Fowler and Knee Gatch to spread the grease evenly.
Hi-Lo Actuators
1. Lower the bed completely and apply the brakes. Flatten the mattress support.
2. Lower the four siderails.
3. Remove if applicable the head and foot section plastic covers (optional), to reach the Hi-Lo
actuators. Otherwise, fully raise the head section, and lift and fold back the foot section
toward the head end of the bed. Secure the foot section to the bed using a bungee cord.
4. Unplug the bed power cord from the wall outlet
5. Using a brush, apply grease on the threads through the dust tube side openings of both Hi-
Lo actuators. Make sure the grease reaches the bottom of the threads.
6. Lower the foot section.
7. Plug in the bed power cord and, using the electric controls, raise and lower the bed several
times to spread the grease evenly.

Maintenance Manual
12
2.3 PREVENTATIVE MAINTENANCE PROGRAM
When servicing use only identical replacement parts provided by Stryker.
ANNUAL CHECKLIST
⎯ All fasteners secure.
⎯ Inspect for excessive wear the oil-impregnated bronze shoulder spacers found at the bed
hinge points. Do not lubricate these spacers. Replace as needed.
⎯ Check the grease present on the components detailed in section 2.2, lubricate if needed
(see section 2.2). Lubricate them at least every two years.
⎯ On both sides of the bed, depress fully down the side of the pedal identified with a red
sticker and ensure that the brakes are applied and the bed is immobilized. Toggle the pedal
to neutral and ensure the brakes are released.
⎯ On both sides of the bed, depress fully down the side of the pedal identified with a green
sticker and ensure that the steer wheel is engaged. Toggle the pedal to neutral and ensure
that the steer wheel disengages.
⎯ Siderails move, latch and stow properly.
⎯ All controls of the foot end panel working properly, including LED's.
⎯ Calibrate the scale (optional). Refer to the scale calibration procedure on page 41.
⎯ All siderail controls working properly.
⎯ Ensure that the nurse call (optional) alarm sounds in the nurse station.
⎯ Verify the CPR emergency release (optional) using both CPR release handles: raise the
Fowler fully up and, using the CPR handle, lower the Fowler gradually to flat position by
pulling, holding and releasing the handle several times. Ensure the Knee Gatch (if raised)
also starts flattening when the Fowler is completely down. Following the complete lowering
of the Fowler, wait approximately 30 seconds - the time for the Fowler actuator to reset - and
verify that the actuator has indeed reset itself by raising the Fowler fully up.
⎯ Verify the Fowler, Knee Gatch and Hi-lo movements to ensure that the motion interrupt
switch integrated to the four electric actuators is operating properly.
⎯ Auxiliary outlet (option available only with 120V beds) working properly.
⎯ Night light (optional) working properly.
⎯ No cracks in the boards, siderails, wheel covers, steer wheel hood (optional) and plastic
covers (optional) of the head and foot sections.
⎯ Head end bumpers tightly secured to frame and working properly.
⎯ No rips or cracks in mattress cover. Replace if so.
⎯ Power cord intact.
⎯ No cables pinched or worn.
⎯ All electrical connections tight.
⎯ All grounds secure to the frame.
⎯ All casters roll properly. Check caster for cuts, wear, etc.
⎯ Measure current leakage and grounding continuity of the bed and the auxiliary outlet
(optional). Check with our Technical Service (see section 1.2) for the acceptable values.
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Pr eventative Maintenance Chapter 2
13
RECOMMENDED SPARE PARTS
The following is a list of recommended on hand spare parts for the FL28C bed.
Description Part Number Parts List
• Electric/Electronic Components
Motor Control Board QDF23-0315 OL280116/117
Scale Control Board (Optional) QDF28-0265 OL280005
S.A. Scale Display (Optional) QDF28-0266 OP280001/002
/003
Nurse Call Control Board (Optional) QDF20-0126 OL280024
Nurse Call (optional) / Gen lll (optional) Control Board QDF20-0121 OL280035
Micro Switch 1325P003 OL280031
Push Button Micro Switch QDF9159 OL280031
Power Connector 23-0267 OL280116/117
Fuse - Fast Acting 10A, 250V for 100/120V Electric Systems QDF8078 OL280116/015
Fuse - Slow Blow 6.3A, 250V for 200/220/240V Electric Systems QDF8068 OL280016/017
/018
Power Cord with Straight N A Molded Plug QDF8066 OL250053
Power Cord with 90° N A Molded Plug (Optional) QDF8066-90D OL250055
Foot Board/Control Board Cable QDF28-0259 OL28116/117
Speakerphone w/Connectors (Optional) QDF26-0111 OL280026
Night Light (Optional) QDF9539 OL250018
Load Cell w/Long Cable QDF14-1367 OL280005
Load Cell w/Short Cable QDF25-0218 OL280005
Auxiliary Power Outlet (Optional) QDF8024 OL250029
5A Circuit Breaker (for Optional Auxiliary Power Outlet) QDF9025 OL250029
Hi-Lo Actuator 28-0760 OL280116/117
Head Section Actuator 28-0761L OL280116/117
Thigh Section Actuator 28-0762 OL280116/117
Toroidal Transformer (International Series Bed) QDF14-1160 OL280117
Stand Off Pins: Motor Control Board
Stand Off Pins: Scale Control Board (Optional)
QP23-0258
QDF8011
OL280116/117
OL280005
Strain Relief Bushing QDF9541 OL280116/117
Female Screw Lock QDF2047
• Foot Board Components
Round Self-Sticking Screw Cover QDF28-0334 L28-015
• Siderail Components
"Lift To Release" Self-Sticking Sticker QDF28-0146 L28-012/002
Oblong Self-Sticking Screw Cover QDF28-0145 L28-012/002
• Mattress Support Components
Head Section Plastic Cover (optional) 28-0101 OL280032
Foot Section Plastic Cover (optional) 28-0103 OL280032
Steel Head Section (Optional) 28-0197L OL280007
Steel Foot Section (Optional) 28-0196L OL280007

Maintenance Manual
14
Seat Section 28-0345L OL280032
Thigh section 28-0034L OL280032
CPR Mechanism Long Cable (Optional) QDF19-0815 OL280034
CPR Mechanism Short Cable (Optional) QDF19-0354 OL280034
CPR Mechanism Pneumatic Cylinder (Optional) QDF5090 OL280034
Foot End Mattress Retainer 17-0211L OL250022/023
• Hi-Lo Mechanism Components
Right "Stub-Acme" Nut QP13-0677-05 OL280116/117
Nut Support QPA25-0380 OL280116/117
• Base Components
Foot End Casing Plastic Cover QP28-0111 L28-005
Plastic Base Tube Cover QP25-0023 L28-020
6" Caster w/Locking Mechanism R25-0388-13 OL280003
5th Steer Wheel RL5 L28-006
Right Wheel Cover QP28-0299-13 L28-020
Left Wheel Cover QP28-0300-13 L28-0 20
Brake/Steer Pedal QP28-0130-13 L28-006
• Miscellaneous
OG2 Grease M0027
Touch-Up Paint - Opal PD018
Ty-rap Q DF9518
Nylon Cable Dia. 3/4" QDF9532
Coupling for Ty-rap QDF9533

Troubleshooting Chapter 3
15
3. TROUBLESHOOTING
Please consult the following troubleshooting guide before calling the Technical Service department
(see section 1.2).
3.1 TROUBLESHOOTING GUIDE
PROBLEM/FAILURE WHAT TO CHECK
No power to bed
• Is the power cord connected to the power
connector and plugged into the wall outlet?
• Is the bed power switch at the head end of
the bed turned on?
• Is the power cord severed? Replace if
needed.
• Are the two fuses inside the power
connector still operational (see page 37)?
• Verify power at wall outlet.
No bed up or down motion when:
• the siderail command is used
• the foot board command is used
• Is the total lockout activated (LED (padlock)
on)? If so, deactivate it.
• Is the cable of the siderail control panel
properly connected to the bed receptacle
under the mattress support?
• Check points of the “No power to bed”
problem described above.
No Fowler up or down motion when:
• the siderail command is used
• the foot board command is used
• Is the Fowler lockout activated (LED
(padlock) on)? If so, deactivate it.
• Is the total lockout activated (LED (padlock)
on)? If so, deactivate it.
• Is the cable of the siderail control panel
properly connected to the bed connector
under the mattress support?
• Check points of the “No power to bed”
problem described above.
The Fowler does not fully raise This situation happens when the CPR handle
is used to partly lower the Fowler. The use of
the CPR mechanism for this purpose creates a
situation where the Fowler motor is out of sync
with the actual position of the Fowler. To
correct the situation:
• Completely lower the Fowler using the
CPR handle or the Fowler down control to
enable the Fowler motor to reset itself.
Refer to the "Emergency CPR Release"
section of the Operations Manual for more
information.

Maintenance Manual
16
No Knee Gatch up or down motion when:
• the siderail command is used
• the foot board command is used
• Is the Knee Gatch lockout activated (LED
(padlock) on)? If so, deactivate it.
• Is the total lockout activated (LED (padlock)
on)? If so, deactivate it.
• Is the cable of the siderail control panel
properly connected to the bed connector
under the mattress support?
• Check points of the “No power to bed”
problem described above.
No Auto Contour motion (optional))
• Is the Knee Gatch or total lockout activated
(LED (padlock) on)? If so, deactivate it.
• Check and replace if needed the two Auto
Contour limit switches (see page 44).
Improper operation of the CPR positioning
(optional): Knee Gatch does not lower and/or
the Fowler actuator does not reset.
• Check and replace if needed (see pages
46 and 47) the two CPR limit switches.
The weight shown on the scale display
(optional) is incorrect.
• Zero the bed without the patient in it (see
the "Scale System Usage" section in the
Operations Manual).
• Calibrate the scale (see page 41).
Scale display (optional) reads OVERLOAD or
shows incorrect weight.
• The weight present on the bed is superior
to the scale capacity, which is 500 lb (227
kg). If the patient weight is superior to 500
lb (227 kg), do not use the scale.
If not the case, zero the scale after having
removed the patient from the bed. This
situation often results from equipment
added to the bed without using the
add/remove equipment procedure (see the
Operations Manual). The weight of this
equipment is then added to the patient's
weight.
• One or more load cell cable not properly
connected or completely disconnected from
the scale control board (see figure 4.3E,
page 38 for the connecting positions of the
load cell cable).
Angle shown on the scale display (optional) is
incorrect
• Calibrate the scale (see page 41).

Troubleshooting Chapter 3
17
Scale display (optional) does not turn on when
the scale is activated.
• Press ENTER key twice.
• Turn the main power switch off and turn it
on.
• Lift the foot board and gently replace it into
position taking care to completely push it
down so that the connectors match
correctly.
• Check points of the “No power to bed”
problem described above.
• Scale user interface cable not properly
connected or completely disconnected from
the scale control board (J6 connector, see
drawing L28-008 in the parts list manual).
Scale (optional) displays "No scale found". • Press the ENTER key. If message
persists, contact our Technical Service
(see section 1.2).
If message disappears, data displayed is
correct and current procedure can be
resumed.
All lockout LEDs (padlock icons) flash or the
word Error appears at the bottom of the LCD
display.
• The scale is unable to measure the
weight due to an electrical problem.
Please contact our Technical Service
(see section 1.2).
Bed Exit system (optional) does not operate
properly.
• Verify that the load cell cables are properly
connected to the scale control board (see
figure 4.3E, page 38 for the illustration of
the load cell cable connecting positions).
Bed Exit system (optional) does not work at all
or alarm goes off when Bed Exit is activated.
• Check points of the “No power to bed”
problem described above.
• One or more load cell cable are not
properly connected or are completely
disconnected from the scale control board
(see figure 4.3E, page 38 for the load cell
cable connecting positions).
Nurse call (optional) or Bed Exit (optional)
signal does not reach the nurse desk.
• Check points of the “No power to bed”
problem described above.
• Check the connecting cable.
• Check the wall outlet.
• Contact the Technical Service (see 1.2)

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4. MAINTENANCE PROCEDURES
Only field technicians from Stryker or service personnel trained by Stryker should perform the
procedures detailed in this maintenance manual, especially those related to the Scale (option)
and Bed Exit (option) systems. Failure to observe this restriction can result in serious damage to
material and/or severe injury to people.
To prevent injury when working under the bed with the bed in the high position, always place
blocks under the mattress support frame and apply the brakes.
Always unplug the bed power cord from the wall outlet when servicing or cleaning the bed.
NOTE
Throughout this maintenance manual, the words “right” and “left” refer to the right and left sides
of a patient lying face up on the bed.
4.1 SIDERAIL MAINTENANCE PROCEDURES
HEAD SIDERAIL ASSEMBLY REPLACEMENT
Required Tools:
1/2" Wrench 3/16" Allen Key Cutting Pliers
Procedure:
1. Run the bed fully up and apply the brakes.
2. Remove the head section plastic cover (optional). Fully raise the head section and raise the
siderail needing repair.
3. Unplug the power cord from the wall receptacle.
4. Loosen the lock ring (A) and unplug the siderail cable.
5. Using cutting pliers, remove the Ty-raps holding the siderail cable to the frame.
6. Using a 3/16" Allen key and a 1/2" wrench, remove the four locknuts/bolts (B) holding the
siderail assembly to the head section and remove the assembly. Support the assembly
when removing the last bolts.
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Figure 4.1
A
A
B
B

Mai ntenance Procedures Chapter 4
19
7. Reverse the above steps to install the new siderail assembly.
8. Test the siderail movement and all controls of both control panels, including the nurse call
optional) and the communications package (optional), for proper operation before returning
the bed to service.
HEAD RAIL REPLACEMENT
Please contact the Technical Service (see section 1.2) for information regarding the
replacement of a head end rail.
HEAD SIDERAIL MECHANISM REPLACEMENT
Please contact the Technical Service (see section 1.2) for information regarding the
replacement of a head end siderail mechanism.
FOOT SIDERAIL ASSEMBLY REPLACEMENT
Required Tools:
1/2" Socket Wrench 1/2" Wrench Bungee Cord
Procedure:
1. Run the bed fully up and apply the brakes. Raise the siderail needing repair.
2. Run the Knee Gatch fully up and unplug the power cord from the wall receptacle.
3. Remove if applicable the foot section plastic cover (optional). Lift and fold the foot section
back toward the head end of the bed. Secure its position using a bungee cord.
4. Using a 1/2" socket wrench and a 1/2" wrench, remove the four locknuts/bolts (A) holding
the siderail assembly to the support and remove the assembly. Support the siderail
assembly while removing the last bolts.
5. Reverse the above steps to install the new siderail assembly.
6. Test the siderail for proper operation before returning the bed to service.
K
K
F
D
E
G
A
A
B C B
Figure 4.1B

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20
FOOT RAIL REPLACEMENT
Required Tools:
Small Slotted Head Screwdriver No. 2 Phillips Screwdriver 5/32" Allen Key
Bungee Cord
Procedure:
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Unless otherwise indicated, refer to figure 4.1B on page 19 for the illustration of this procedure
reference points.
1. Run the bed fully up and apply the brakes. Raise the siderail needing repair.
2. Unplug the bed power cord from the wall outlet.
3. Using a small slotted head screwdriver, lift and remove the following self-sticking parts: the
three screw-covers (B) and the "Lift to release siderail" label (C) to expose the screws
holding the siderail cover. Proceed gently when inserting the screwdriver under the labels to
avoid scratching the molded rail.
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Do not reuse the self-sticking parts removed since their self-adhesive coating considerably
looses its efficiency once they are removed. Replace them with new parts.
4. Using a no. 2 Phillips screwdriver, remove the eight screws (D) holding the cover to the
siderail and remove the cover.
The eight screws (D) must be replaced with new identical screws because their Scotch-Grip
coating is less efficient once they have been tightened and removed thereafter.
5. Remove the yellow locking lever (E).
6. Using a no. 2 Phillips screwdriver, remove the screw (F) holding each siderail arm plastic
cover and lift up the covers to remove them.
7. Using a 5/32" Allen key, remove the two Allen screws (G) holding each pommel to the
siderail arms. Leave one loosened screw on each pommel until ready to remove both
pommels.
8. While supporting the rail, remove the two last screws, the pommels, the bungee cord and
finally the rail.
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Note the position of the pommel with the lock (left pommel when facing the rail) when the
siderail is fully raised. The rail will not lock in high position if this pommel is positioned
differently.
9. Reverse the above steps to install the new rail.
10. Test the siderail for proper operation before returning the bed to service.
FOOT SIDERAIL MECHANISM REPLACEMENT
Required Tools:
Small Slotted Head Screwdriver No. 2 Phillips Screwdriver 5/32" Allen Key
Bungee Cord 1/2" Socket Wrench 1/2" Wrench
Procedure:
1. Follow steps 1 to 8 of the foot end rail replacement procedure above.
2. Using a 1/2" socket wrench and a 1/2" wrench, remove the four locknuts/bolts (K, fig. 4.1B,
page 19) holding the mechanism assembly to the support and remove the assembly.
3. Reverse the above steps to install the new mechanism assembly.
4. Test the siderail for proper operation before returning the bed to service.
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