Stryker FL28EX Service manual

MAINTENANCE MANUAL

ELECTRIC MED/SURG BED

Model FL28EX

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

72-0905E REV A MM FL28EX	December 2005
F15-44-B	Printed in Canada

	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 Control Fascia Replacement..........................................................................	21
	Siderail Outer Control Board Replacement.................................................................	22
	Siderail Inner Control Board Replacement..................................................................	23
	Speakerphone Replacement (Optional)......................................................................	24
4.2	Foot Board Maintenance Procedures............................................................................	25
	Foot End Control Fascia Replacement .......................................................................	25
	Weigh System LCD Display Replacement..................................................................	25
	Foot End Control Board Replacement ........................................................................	26
4.3	Mattress Support Maintenance Procedures ..................................................................	27
	Foot Section Replacement .........................................................................................	27
	Thigh Section Replacement........................................................................................	28
	Seat Section Replacement .........................................................................................	28
	Head Section Replacement........................................................................................	29
	Fowler Actuator Replacement ....................................................................................	30
	Knee Gatch Actuator Replacement ............................................................................	32

Hi-Lo Actuator Replacement .......................................................................................	33
Motor Control Board Replacement..............................................................................	35
Nurse Call (Optional)/GEN lll Pendant Control (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...............................................................................................	40
Scale Calibration.........................................................................................................	41
Verifying the Scale Accuracy ....................................................................................	41
Scale Calibration ......................................................................................................	42
Cardiac Chair and Auto Contour Micro Switch Replacement ......................................	44
Cardiac Chair Micro Switch.......................................................................................	44
Micro Switch Common to the Cardiac Chair and Auto Contour Mechanisms ............	45
Auto Contour Micro Switch .......................................................................................	45
CPR Micro Switch Replacement .................................................................................	46
Micro Switch Attached to the Head Section Lever ....................................................	46
Micro Switch Attached to the Frame. ........................................................................	47
CPR Activation Cable Replacement............................................................................	47
CPR Pneumatic Cylinder ............................................................................................	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 and Digital Inputs ......................	59

Introduction Chapter 1

1. INTRODUCTION

This manual is designed to assist in the servicing of the Stryker's FL28EX 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
- Capacity	Patients weighing up to 500 lb (227 kg)
- Accuracy	± 2 % for weight from 100 to 500 lb (45.3 to 227 kg)
	± 2 lb for weight under 100 lb (45.3 kg)
- Operating Angular Range	-12° to +12°
Overall Length/Width
- Siderails Up	94 5/8 x 40" (240.34 cm x 101.6 cm)
- Siderails Down	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	35 x 80" (89 x 203 cm); 35 x 82" (89 x 208 cm); 35 x
Mattress Maximum Thickness	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	0 to 24°
- with Auto Contour
- without Auto Contour	0 to 32°
Trendelenburg/Reverse Trendelenburg	+14 to -14°
Environmental Conditions
- Transport and Storage
- Ambient Temperature	-40 to 70°C (-40 to 158°F)
- Relative Humidity	10 to 100%
- Atmospheric Pressure	500 to 1060 hPa
- Operating ***
- Ambient Temperature	18.3 to 26.7°C (65 to 80°F)
- Relative Humidity	20 to 80% without condensation
- Atmospheric Pressure	700 to 1060 hPa
Electrical Requirements**** - all electrical	100V , 50-60Hz, 7.5A - Two 250V, 10A Fuses
requirements meet CSA C22.2 No. 601.1,	120V , 50-60Hz, 4.0A (9.8A w/120V Optional Auxiliary
UL 60601-1 and IEC 60601-1, 60601-2-38	Outlet) - Two 250V, 10A Fuses
specifications.	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 precision.

****The device has a 10% duty cycle.

5

BED

GROUNDING DIAGRAM

Maintenance Manual

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.

WARNING

The personal safety of the patient or user may be involved. Disregarding this information could result in injury to the patient or user.

CAUTION

These instructions point out special procedures or precautions that must be followed to avoid damaging the equipment.

NOTE

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.

6

Introduction Chapter 1

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:

HEAD END

B

C

D

FOOT END

MANUFACTURER NAMEPLATE

SERIAL NUMBER PLATE

A

Figure 1.5

•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.

NOTE

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.

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Maintenance Manual

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

Warning, refer to accompanying documents

10A 250V

6.3A 250V

Fuse rating for 100V and 120V electric systems

Fuse rating for 200V , 220V and 240V electric systems

Protective Earth (ground)

Alternating Current

Type B Equipment

IPX4 Protection from liquid splash

8

Preventative Maintenance Chapter 2

2. PREVENTATIVE MAINTENANCE

2.1 BED CLEANING AND MATTRESS CARE

WARNING

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.

CAUTION

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

WARNING

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

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.

CAUTION

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	Bungee Cord

Procedure:

A

B

B

Figure 2.2

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.

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Preventative Maintenance Chapter 2

7. Fully raise and lower the head section several times to spread the grease.

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 HiLo 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.

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Maintenance Manual

2.3 PREVENTATIVE MAINTENANCE PROGRAM

WARNING

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 (see the scale calibration procedure on page 41).

All siderail controls working properly.

Ensure that the nurse call (optional) alarm sounds in the nurse station.

Ensure that the Communication Package (optional) controls operate properly.

Verify the CPR emergency release 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.

12

Preventative Maintenance Chapter 2

RECOMMENDED SPARE PARTS

The following is a list of recommended on hand spare parts for the FL28EX bed.

Description

Part Number

Parts List

•Electric/Electronic Components

Motor Control Board		QDF25-0592	OL250001/010
Scale Control Board		QDF25-0593	L28-008
S.A. Scale Display		QDF25-0463	L28-008
Nurse Call (Optional)/ Gen lll Control Board (Optional)		QDF21-1163	OL280002
Foot Board Control Board		QDF21-1154	L28-014
Micro Switch		1325P003	L28-013
Push Button Micro Switch		QDF9159	L28-013
Power Connector		QDF2034	OL28001/010
Fuse - Fast Acting 10A, 250V for 100/120V Electric Systems		QDF8078	OL280001/011
Fuse - Slow Blow 6.3A, 250V for 200/220/240V Electric Systems		QDF8068	OL280012/013
			/014
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		QDF28-0258	OL28001/010
Speakerphone w/Connectors (Optional)		QDF26-0111	OL280020
Night Light (Optional)		QDF9539	OL250018
Load Cell w/Long Cable		QDF14-1367	L28-028
Load Cell w/Short Cable		QDF25-0218	L28-028
Auxiliary Power Outlet (Optional)		QDF8024	OL250029
5A Circuit Breaker (for Optional Auxiliary Power Outlet)		QDF9025	OL250029
Hi-Lo Actuator		25-0567	OL280001/010
Head Section Actuator		28-0403L	OL280001/010
Thigh Section Actuator		28-0377	OL280001/010
Toroidal Transformer (International Series Bed)		14-1160	OL280001/010
Stand Off Pins: Motor Control Board		QP23-0258	OL280001/010
Stand Off Pins: Scale Control Board		QDF8011	L28-008
Strain Relief Bushing		QDF9541	OL280001/010
Female Screw Lock		QDF2047
•	Foot Board Components
Foot End Control Panel Self-Sticking Fascia w/Scale and Bed		QDF25-0461	OP250002
Exit 3 Zone (optional)
Foot End Control Panel Self-Sticking Fascia w/Scale and Bed		QDF25-0528	OP250003
Exit 1 Zone (optional)
Foot End Control Panel Self-Sticking Fascia w/Scale w/o Bed		QDF25-0529	OP250004
Exit (optional)
Round Self-Sticking Screw Cover		QDF28-0334	L28-014
Head/Foot Board Leg Caps		QPC21-3855	L28-011-014
•	Siderail Components
Siderail Right Patient Ctrl Self-Sticking Fascia w/o Nurse Call		QDF28-0248	OL280019
nor Communications Package (Optional)

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Maintenance Manual

Siderail Left Patient Ctrl Self-Sticking Fascia w/o Nurse Call nor		QDF28-0249	OL280019
Communications Package (Optional)
Siderail Right Patient Ctrl Self-Sticking Fascia w/Nurse Call, w/o		QDF28-0252	OL280020
Communications Package (Optional)
Siderail Left Patient Ctrl Self-Sticking Fascia w/Nurse Call, w/o		QDF28-0253	OL280020
Communications Package (Optional)
Siderail Right Patient Ctrl Self-Sticking Fascia w/Nurse Call and		QDF28-0250	OL280021
Communications Package (Optional)
Siderail Left Patient Ctrl Self-Sticking Fascia w/Nurse Call and		QDF28-0251	OL280021
Communications Package (Optional)
Outer Right Ctrl Panel Self-Sticking Fascia		QDF28-0139	L28-001
Outer Left Ctrl Panel Self-Sticking Fascia		QDF28-0140	L28-001
Outer Ctrl Panel Control Board		QDF21-1151	L28-001
Inner Ctrl Panel Control Board		QDF21-1169	L28-001
"Lift To Release" Self-Sticking Sticker		QDF28-0146	L28-001
Oblong Self-Sticking Screw Cover		QDF28-0145	L28-001
•	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
Seat Section		28-0345L	OL280032
Thigh section		28-0034L	OL280032
CPR Mechanism Long Cable		QDF19-0815	OL280034
CPR Mechanism Short Cable		QDF19-0354	OL280034
CPR Mechanism Pneumatic Cylinder		QDF5090	OL280034
Foot End Mattress Retainer		17-0211L	OL250022/023
• Hi-Lo Mechanism Components
Right "Stub-Acme" Nut		QP13-0677-05	OL280001/010
Nut Support		QPA25-0380	OL280001/010
•	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	L28-020
Brake/Steer Pedal		QP28-0130	L28-006
•	Miscellaneous
OG2 Grease		M0027
Touch-Up Paint - Opal		PD018
Ty-rap		QDF9518
Nylon Cable Dia. 3/4"		QDF9532
Coupling for Ty-rap		QDF9533

14

Troubleshooting Chapter 3

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:	• Is the total lockout activated (LED (padlock)
	• the siderail command is used	on)? If so, deactivate it.
	• the foot board command is used	• 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:	• Is the Fowler lockout activated (LED
	• the siderail command is used	(padlock) on)? If so, deactivate it.
	• 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 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.

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Maintenance Manual

	No Knee Gatch up or down motion when:	• Is the Knee Gatch lockout activated (LED
	• the siderail command is used	(padlock) on)? If so, deactivate it.
	• 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 connector
		under the mattress support?
		• Check points of the “No power to bed”
		problem described above.
	No Auto Contour motion	• 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 45).
	Improper operation of the cardiac chair: Fowler	• Check and replace if needed (see pages
	and Knee Gatch raise but final step of the	44 and 45) the two Cardiac Chair limit
	cardiac chair position not reached (reverse	switches.
	Trend).
	Improper operation of the CPR positioning:	• Check and replace if needed (see pages
	Knee Gatch does not lower and/or the Fowler	46 and 47) the two CPR limit switches.
	actuator does not reset.
	The weight shown on the scale display is	• Zero the bed without the patient in it (see
	incorrect.	the "Scale System Usage" section in the
		Operations Manual).
		• Calibrate the scale (see page 41).
	Scale display reads OVERLOAD or shows	• The weight present on the bed is superior
	incorrect weight.	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 is incorrect	• Calibrate the scale (see page 41).

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		Troubleshooting Chapter 3
	Scale display does not turn on when the scale	• Press ENTER key twice.
	is activated.	• 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 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	• The scale is unable to measure the
	word Error appears at the bottom of the LCD	weight due to an electrical problem.
	display.	Please contact our Technical Service
		(see section 1.2).
	Bed Exit system (optional) does not operate	• Verify that the load cell cables are properly
	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	• Check points of the “No power to bed”
	or alarm goes off when Bed Exit is activated.	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)	• Check points of the “No power to bed”
	signal does not reach the nurse desk.	problem described above.
		• Check the connecting cable.
		• Check the wall outlet.
		• Contact the Technical Service (see 1.2)

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Maintenance Manual

4. MAINTENANCE PROCEDURES

WARNING

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:

B

B

A

Figure 4.1A

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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