This manual is designed to assist you with the operation and maintenance of the 2010/2011 Stryker Manual
Critical Care Bed. Read it thoroughly before using the equipment or beginning any maintenance on it.
SPECIFICATIONS
Maximum Weight Capacity500 pounds
Overall Bed Length/Width90”/38”
Minimum/Maximum Bed Height22.5”/35”
Knee Gatch Angle0 degrees to 35 degrees
Fowler Angle0 to 90 degrees
Trendelenberg/Reverse Trendelenberg–12 degrees to +12 degrees
Weigh System Accuracy (optional equipment)+ / – 1% of total patient weight
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
This provides special information to make maintenance easier or important instructions clearer.
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Preventative Maintenance
CLEANING
1. Hand wash all surfaces of the bed with warm water and mild detergent. Dry thoroughly.
2. Clean Velcro AFTER EACH USE. Saturate Velcro with disinfectant and allow disinfectant to evaporate.
(Appropriate disinfectant for nylon Velcro should be determined by the hospital.)
BIANNUAL CHECKLIST
All fasteners secure (reference all assembly prints)
Siderails move and lock properly
All casters lock with brake pedal engaged
Fowler crank operating properly
Knee Gatch crank operating properly
Lift pedal operating properly
Trendelenberg/Reverse Trendelenberg pedals operating properly (page 5 or 8).
Weigh system operating properly (page 15 – 20).
Battery charger operating properly
Head and foot boards secure in frame ends
No cracks or splits in head and foot boards
I.V. pole operating properly
Oxygen bottle holder operating properly
Emergency drop Fowler operating properly
No rips or cracks in mattress cover
Restraint straps and mounting points intact and secure
No leaks at hydraulic connections
No hoses worn, kinked or leaking
Hydraulic oil level sufficient (page 5).
Fowler slide tracks well greased (use MPG2 Dubois or equivalent)
Fowler slides are securely in tracks
Lexan securely fitted – no cracks
No cables worn, frayed or pinched
All electrical connections tight
All grounding cables secure to frame
Serial No.______________
______________
______________
______________
______________
Litter will not lower with foot pedals depressed.Adjust valve control linkage rods (page 8).
Litter will not lift when foot pedal pumped.Add hydraulic fluid (page 5).
Bleed air from hydraulic system (page 5).
Change pump pedal cylinder(s).
Litter ”drifts”.Bleed air from hydraulic system (page 5).
Adjust valve control linkage (page 8).
Check for leaking hoses or fittings and replace.
Disconnect hose from affected jack, install cap on
fitting and watch for drift to determine if jack is
faulty.
If jack is O.K., replace the manifold assembly.
Emergency Drop Fowler doesn’t crank to full 90
degrees.
Follow instructions on label located by emergency
drop cable to reset crank system.
ELECTRICAL TROUBLESHOOTING
PROBLEM/SYMPTOMSOLUTION(S)
Weigh system won’t turn on.Check weigh system lockout switch.
Check voltage from batteries. TP1 (ground) to TP2
should be 18–20 VDC with the power switch
turned on.
Check weigh system switch board.
Replace CPU board (page 18 & 19).
Weigh system shuts off prematurely.Check connections on all weigh cables.
Weigh system readings not accurate.Check all load cells for physical binding on litter
top.
Check individual load cells in diagnostic mode
(page 15 & 16).
Check calibration of load cells (page 17 & 18).
Replace scale CPU board (page 18 & 19).
Trend/Fowler LED board not working.Check power to LED board. TP1 (ground) to TP3
should be 5 VDC (+/– .3) with the power switch
on.
LED Trend/Fowler position lights not accurate.Check potentiometer positions on litter pots and
Trend/Fowler display board (page 13 & 14).
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Service Information
HYDRAULIC DESCENT RATE ADJUSTMENT
The descent rate of either end of the bed can be adjusted by turning the needle valves on the manifold assemblies located on the base of the bed. To access the manifold assemblies, lift and support the foot end of the
hood assembly (see page 6). To slow the jack descent rate, turn the needle valve clockwise. To increase
the jack descent rate, turn the needle valve counterclockwise.
NOTE
The descent rate was preset at the factory.
BLEEDING AIR FROM THE HYDRAULIC SYSTEM
Raise the litter to full up using the lift pedal and continue to pump 10–12 times after full up is reached. Lower
the bed using the foot pedals. While continuing to hold the foot pedals down, pump the lift pedal an additional
10–12 times. Repeat the procedure 2–3 times or until the bed motion is smooth and the pedal action is firm.
CHECKING HYDRAULIC OIL LEVEL
1. Lift and support the base hood (see page 6). The hydraulic oil reservoir is located at the foot end of the
bed on the patient’s left.
2. With all cylinders full up, assure the hydraulic oil is at the required level as indicated on the reservoir.
3. If replacement oil is required, use Mobil Aero HFA or Mobil Aerex 903 hydraulic oil (Stryker part number
2020–70–475).
4. Replace the base hood (see page 6).
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Service Information
BASE HOOD REMOVAL AND REINSTALLATION
Required Tools:
Phillips Head Screwdriver5/32” Ball Driver
Bungee Cords or String
Procedure:
1. Raise bed to full up.
2. Remove four Phillips head screws holding hood to base assembly and separate velcro that secures hood
to base tubes.
3. Secure hood to litter using bungee cords, string, etc. so that bed servicing can be easily performed.
4. If more room is needed for service, bellows can be raised above plastic bellows cap. Using a 5/32” Ball
driver, remove two Allen bolts holding bellows cap to jack and remove bellows cap.
5. To reinstall hood after bed service has been completed, remove whatever was used in step 3 to secure
hood to litter and place hood back in correct position on base assembly.
6. Reinstall four Phillips head screws that hold hood to base assembly and press down on hood to secure
velcro holding hood to base tubes.
7. Put bellows and bellows cap onto jack cylinder. Be sure to install caps into ”cutout” groove in jack cylinder.
Reinstall Allen bolts removed in step four and tighten.
8. Put first pleat at top of bellows around bellows cap and tuck bottom of bellows into base hood.
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Service Information
STEER CASTER LINKAGE ADJUSTMENT
Tools Required:
Phillips Head Screwdriver3/8” Open End Wrench
5/32” Allen Wrench1/2” Open End Wrench
F
E
E
D
A
C
B
Adjustment Procedure:
1. Lift up and support base hood (see page 6).
2. Using a 5/32” Allen wrench and 3/8” open end wrench, remove items (D), (E) and (F).
3. Using a 1/2” open end wrench, loosen jam nut (C).
4. Tighten item (A) into item (B) for more lever engagement or away from item (B) for less engagement.
5. To reassemble linkage, reverse steps 2 and 3.
6. Check steering wheel engagement. When properly adjusted, the locking tab should clear the notch in the
steer caster when in the neutral position, and should fully engage when in steer.
7. After proper adjustment is determined, reinstall base hood.
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Service Information
HYDRAULIC VALVE/RELEASE PEDAL/SPRING ADJUSTMENT
Required Tools:
3/8” Open End Wrench (2)7/16” Open End Wrench
Phillips Head Screwdriver
Adjustment Procedure:
1. Lift and support base hood (see page 6).
2. Using a 7/16” open end wrench, adjust pedal stop bumper so that top of pedal is parallel with floor. The
pedal should not be able to raise above this point.
3. After pedal stop bumper has been adjusted properly, manual valve should be closed and litter should stay
firm.
4. If litter does not stay firm, adjustments to the linkage will be required.
5. Depress the pedal to the floor and be sure the return spring is completely bottomed out. If it is not, use
both 3/8” open end wrenches to adjust the ball nut at the pedal end of the linkage rod. Retighten the ball
and jam nut.
6. Release the pedal and adjust the ball nut at the manual valve arm so that there is approximately 1/16 inch
freeplay between the valve arm and the ball nut. Retighten the ball and jam nut.
7. Reinstall the base hood (see page 6).
Washer
Pedal Top to be Parallel
with Floor Line
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Service Information
FRAME END REMOVAL – FOOT END
If service is required on the electronic portions of the bed, it may be necessary to remove the frame end at
the foot end of the bed.
Required Tools:
Phillips Screwdriver
Removal Procedure:
1. Using the Knee Gatch crank, move Knee Gatch to full up.
2. Remove foot board from receptacles.
3. Using Phillips head screwdriver, remove two Phillips head screws located on front of frame end on frame
end metal bumper.
4. Slowly lift up on frame end at footboard receptacle area and lay frame end on foot of Knee Gatch
CAUTION
Do not lift frame end quickly, electrical cables are attached to frame end.
5. To replace frame end after service is complete, reverse steps 4–2.
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Service Information
REPLACING TREND/FOWLER DISPLAY OPTION BATTERIES
The Trend/Fowler display option is powered by 3 ”D” size (1.5 V) alkaline batteries. The batteries are located
under the foot end frame end. To replace the batteries, remove the foot end frame end (page 9). Disconnect
the power cable and replace batteries – be sure to note polarity of battery placement on battery holder. Th e
batteries will need to be replaced when the Trend/Fowler LED angle indicators appear dim.
NOTE
The system power switch under the frame end at the foot end of the bed must be on for the Trend/Fowler
display to light. If the bed is not equipped with a weigh system, there will not be a power switch and the switch
on the keypad must be pressed.
CHARGING WEIGH SYSTEM BATTERIES
CAUTION
Do not charge batteries while they are on the bed.
Required Tools:
Phillips Screwdriver
Procedure:
1. Using Fowler crank, move Fowler up.
2. Remove headboard from receptacles.
3. Using Phillips screwdriver, remove the two Phillips head screws located on front of frame end on frame
end metal bumper.
4. Slowly lift up on frame end at head board receptacle area and lay frame end out of the way.
5. Disconnect the three power cables and remove each battery from the bed by pulling up.
6. Place the battery in an upright position and attach the charger.
7. After batteries have been fully charged, reinstall into the bed.
8. Reconnect the three cables and install the frame end.
* If the batteries are allowed to drain to zero power, it will take 16 hours to completely charge them.
NOTE
When the low battery indicator light on the keypad first lights, there is still enough power to operate the weigh
system for approximately one week.
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Service Information
STATIC DISCHARGE PRECAUTIONS
The electronic circuits in the 2010/2011 are completely 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 systems of the 2010/201 1. Whenever you are touching wires, you should
be using static protection.
Static Protection Equipment
The necessary equipment for proper static protection is:
S1 static wrist strap; 3M part number 2214 or equivalent,
S1 grounding plug; 3M part number 61038 or equivalent,
S1 test lead with a banana plug on one end and an alligator clip on the other; Smith part number
N132B699 or equivalent.
CAUTION
All electronic service parts will be shipped in static shielding bags. Do not open the bags until you have completed the following procedure. Do not place unprotected circuit boards on the floor. All circuit boards to be
returned to Stryker Medical should be shipped in the static shielding bags the new boards were shipped in.
Static Protection Procedure
1. 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 the ground chain of the bed.
2. Place the static control wrist strap on your wrist. Connect the alligator clip at the other end of the wrist strap
cord to the ground chain of the bed.
Phillips Screwdriver
Small (Jeweler’s) Screwdriver
1/4” Nut Driver
Replacement Procedure:
1. Properly ground yourself (see page 11 for static discharge precautions).
2. Remove the foot end frame end from the litter (page 9).
3. Carefully remove the 3 cables attached to the board.
4. Using a 1/4” nut driver, remove the four nuts holding the board to the frame end and remove the defective
board.
5. Install new board and reattach the 4 nuts and cable.
6. Important: follow the alignment procedure on page 13.
7. After completing the alignment procedures, replace frame end.
8. Check all operations before returning the bed to service.
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Service Information
TREND/FOWLER DISPLAY BOARD ALIGNMENT
Required Tools:
3/32 Allen WrenchSmall Needle–Nosed Pliers
Inclinometer or ProtractorThread Lock Compound
Red LacquerJumper
Digital VOM, Fluke 77 or EquivalentFlat Blade Jeweler’s Screwdriver or Potentiometer
Adjustment Tool
FOWLER DISPLAY ALIGNMENT PROCEDURE:
Mechanical Alignment of the Fowler Pot Shaft
NOTE
The Fowler potentiometer shaft is located under the litter midsection on the patient’s right side.
1. Loosen set screws securing Fowler pot shaft to linkage arm.
2. Using Fowler crank, lower the Fowler to flat (0 degrees).
3. Unplug the Fowler pot cable. Using a digital VOM, measure the resistance between the green and black
wires. Using small needle–nosed pliers, turn the Fowler pot so that the resistance is 75 ohms +/– 3 ohms.
4. Tighten the set screws on the Fowler pot shaft and recheck the resistance measurement. Readjust as
required.
5. Reconnect the Fowler pot cable assembly.
CAUTION
The material of the potentiometer shaft is brass and care should be taken not to tighten the set screws too
firmly. Once all the calibrations are complete and the system is set, the set screw can be tightened securely.
Electrical Alignment of the Fowler Display Board
1. Complete the mechanical alignment procedure above.
2. Raise Fowler fully (90 degrees).
3. Remove foot end frame end. Turn bed power on and position frame end so the Fowler angle display is
visible.
NOTE
The system is normally powered by a momentary button. To power the system continuously, place a jumper
from the cathode of D1 to the R8–R4 node.
4. Adjust R5 on the display board so that the 90 degree Fowler LED is on. Adjust R5 back and forth so that
it is positioned in the center of the range that keeps the 90 degree LED on (normally 1 1/2 turns past the
point when the 90 degree LED comes on).
5. Raise and lower the Fowler while checking the angle with an inclinometer. Adjust R5 as required for angle
accuracy. The resistance of the Fowler pot when the Fowler is at 90 degrees is approximately 417 ohms
(reference only).
When all calibration is complete, secure all set screws with thread lock compound and paint the potentiometer
adjustment slot (R5) with red lacquer.
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Service Information
TREND/FOWLER DISPLAY BOARD ALIGNMENT (CONTINUED)
TREND DISPLAY ALIGNMENT PROCEDURE:
Mechanical Alignment of the Trend Pot Linkage
NOTE
The Trend potentiometer linkage is located under the frame end at the patient’s head, on the left side.
1. Loosen set screws securing Trend pot shaft to linkage arm.
2. Using the foot pedals, raise the bed fully and level the litter to 0 degrees.
3. Unplug the trend pot cable assembly and measure the resistance between the green and black wires.
Adjust the pot, using a jewellers screwdriver, to approximately 86 ohms (+/– 3 ohms). Secure set screws
and check resistance. Readjust as required.
Electrical Alignment of the Trend Display Board
1. Complete the mechanical procedure above.
2. Using the foot pedals, raise the bed fully and put the litter into full Trendelenberg (head down).
3. Remove foot end frame end. Turn bed power on and position frame end so the T rend angle display is visible.
NOTE
The system is normally powered by a momentary button. To power the system continuously, place the jumper
from the cathode of D1 to the R8–R4 node.
4. Adjust R1 on the display board so that the +12 degree LED is on. Adjust R1 back and forth so that it is
positioned in the center of the range that keeps the +12 degree LED on. Normally this is 1 turn past when
the +12 degree LED is first on.
5. Position bed at various trend angles and check the angle with an inclinometer. Adjust R1 as required for
accuracy of the LED lights. The resistance measurement for 0 degrees is 86 ohms. For +12 degrees,
the measurement is 129 ohms and for –12 degrees it is 46 ohms (reference only).
When all calibration is complete, secure all set screws with thread lock compound and paint the potentiometer
adjustment slots (R1 and R5) with red lacquer.
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Service Information
SCALE SYSTEM DIAGNOSTICS AND SERVICE
Diagnostic Mode Functions:
1. Download Barcode: This is a factory set–up mode and is not used in the field.
2. Calibrate Scale: This may be required in the field if replacement of several load cell assemblies or of the
scale CPU is required. Replacement of a single load cell assembly does not normally require this procedure.
3. Change LBS/Volts: This is required whenever a load cell assembly or a scale CPU is changed in the field.
4. Change Ref. Volts: This is a factory set–up mode and is not used in the field.
5. Init. to Defaults: This may be required in the field when replacing the scale CPU board.
6. Display Corner: This function displays the individual corner weights for each load cell assembly and can
be used to isolate a defective load cell.
7. Serial Option (If so equipped): This enables the scale system remote display port.
8. Quit/Save: This exits the diagnostic mode. Changes made in the diagnostic mode (with the exception of
Calibrate Scale) must be saved in permanent memory using this function. Quitting without saving will reset
all variables to their previous values, as will switching off bed power without using the save function.
Diagnostic Mode:
1. To enter diagnostic mode, remove power from the scale system by switching the scale power switch toward
the foot of the bed.
2. Press and hold down the LBS/KGS key.
3. While still holding the LBS/KGS key, switch the scale power switch toward the head of the bed.
4. After two seconds, release the LBS/KGS key. The scale monitor should read DOWNLOAD BARCODE.
The diagnostic mode is now active.
Special Key Functions in the Diagnostic Mode:
1. The four keys on the left side of the green scale key grouping function as POSITION keys, corresponding
with the four corners of the bed litter . Whenever the scale monitor displays ”PICK CORNER NOW”, press
one of these keys to select the load cell assembly at the desired corner.
a. ZERO BED = Head end, patient’s right side.
b. ZERO/GAIN LOSS = Foot end, patient’s right side.
c. CHANGE EQUIP. START = Head end, patient’s left side.
d. CHANGE EQUIP. FINISH = Foot end, patient’s left side.
Displaying Individual Load Cell Outputs:
A faulty load cell can be detected by entering diagnostics and displaying individual load cell outputs.
1. Enter the diagnostic mode. The scale monitor will display DOWNLOAD BARCODE when the diagnostic
mode is active.
2. Press and release LBS/KGS until the scale monitor displays DISPLAY CORNER.
3. Press and release WEIGHT SYSTEM ON. The scale monitor should display PICK CORNER NOW.
4. Press and release the position key that corresponds with the load cell to be checked. The scale monitor
should display XX=NNN.N. ”XX” represents the initials of the selected corner, i.e. H/R will be displayed
for the patient’s head end, right side. ”NNN.N” represents the actual weight load on the load cell.
5. Repeat step four for each corner. Head end weight readings will normally be lower than foot end weights.
Weight readings should be constant. A jumpy , drifting 000.0 or 999.9 weight indicates a problem with the
selected load cell assembly or load cell cable.
6. When all the load cell outputs have been checked, press and release WEIGHT SYSTEM ON.
7. Press and release LBS/KGS until the scale monitor displays QUIT/SAVE.
8. Press and release WEIGHT SYSTEM ON. The scale monitor should shut off after one second.
Replacing a Load Cell:
Required Tools:
3/16” Allen Socket10 Ft. Lb. Torque Wrench
Saw Horse(s)3M Static Protection
5/64” Allen WrenchPencil
Replacement Procedure:
1. Properly ground yourself (see page 11 for static discharge precautions).
2. Using a 5/64” Allen wrench, remove the two cap screws holding the plastic cover to the load cell mounting
block.
3. Disconnect the cable from the load cell.
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Service Information
Load Cell Replacement Procedure (Continued):
4. Using a pencil, draw a line on the underside of the litter crossbar along the end of the load cell mounting
block to use for reference when installing the new load cell (see illustration).
5. Using blocks, sawhorses, etc., support the litter under the frame end at the end of the bed where the load
cell is being removed.
6. Using a 3/16 Allen socket, remove the two cap screws holding the load cell assembly to the litter support
bar.
7. Pull the load cell out of the mounting block. Do not lose the nylon spacer between the load cell and the
stop pin. It is used with the new load cell.
NOTE
Metal shims are used when shipping new load cell assemblies. Remove and discard these shims after installing the new load cell.
8. Install the new load cell being sure to have the strain gauge facing down. The strain gauge should be visible
through the slot in the load cell mounting block or the scale readings will be incorrect.
9. Line up the end of the load cell mounting block with the line drawn on the underside of the litter crossbar.
Install the two cap screws and tighten them to 8–10 foot–pounds torque.
10. Connect the cable to the weigh board and reattach the plastic cover to the load cell mounting block. The
new bar codes must now be entered in the memory.
Entering New Load Cell Bar Codes:
1. Enter diagnostic mode. The scale monitor will display DOWNLOAD BARCODE when the diagnostic mode
is active. Press and release LBS/KGS two times. The scale monitor should display CHANGE LBS/
VOLTS. Press and release WEIGHT SYSTEM ON. The scale monitor should display PICK CORNER
NOW. Press and release the position key that corresponds with the replaced load cell. For example, if
the patient’s head end, right side load cell has been replaced, press and release the ZERO BED key.
2. Using the LBS/KGS key to position the brackets around the digit that is to be changed and using the LOCK/
UNLOCK key to change the bracketed digit, change the displayed number to match the number printed
on the new load cell assembly’s bar code. For example, the scale monitor might display H/R L V= <8>7811.
Assuming the new load cell assembly bar code label reads L92101, the procedure to change the displayed
number would be as follows:
a. Press and release LOCK/UNLOCK one time. The scale monitor should display H/R LV=<9>7811.
b. Press and release LBS/KGS one time. The scale monitor should display H/R LV=9<7>811.
c. Press and release LOCK/UNLOCK one time. The scale monitor should display H/R LV=9<8>811 . Repeat
this step four more times, until the display reads H/R LV=9<2>811.
d. Press and release LOCK/UNLOCK one time. The scale monitor should display H/R LV=92<8>11.
e. Press and release LBS/KGS three times. The scale monitor should display H/R LV=92<1>11.
f. Press and release LOCK/UNLOCK one time. The scale monitor should display H/R LV=921<1>1.
g. Press and release LBS/KGS nine times. The scale monitor should display H/R LV=921<0>1.
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Service Information
Entering New Load Cell Bar Codes (Continued):
3. Press and release WEIGHT SYSTEM ON. The scale monitor should display PICK CORNER NOW.
4. Press and release WEIGHT SYSTEM ON. The scale monitor should display CHANGE LBS/VOLTS.
5. Press and release LBS/KGS until the scale monitor displays QUIT/SAVE.
6. Press and continue to hold WEIGHT SYSTEM ON until the scale monitor displays HOLD TO SAVE and
then displays SAVE COMPLETE. Remember, the save function must be completed or the numbers will
reset to the previous values.
7. Release WEIGHT SYSTEM ON. The scale monitor will go blank in one second. The scale system will
now operate normally. Check the weigh system accuracy before returning the bed to service.
Replacing Scale CPU:
Required Tools:
Phillips Head Screwdriver
Small Screwdriver
Replacement Procedure:
1. Properly ground yourself (see page 11 for static discharge precautions).
2. Remove the foot end frame end from the litter (see page 9 for instructions).
3. Remove the connectors from the scale CPU circuit board (see illustration). Note the orientation and placement of the connectors so they will be attached properly to the new scale CPU board.
Switch/LED System
Cable – to JP6 on
Scale CPU
Power System
Cable
Drain Wire
SWITCH BOARDLCD/DISPLAY KEYPAD
CIRCUIT BOARD
Ground Wire –
to P1 on
Scale CPU
Weigh System Cable –
to JP3 on Scale CPU
Scale Cable Assembly
4. Using a small screwdriver, remove the six screws holding the scale CPU board and carefully remove the
CPU board from the spacers on the litter computer plate.
5. Place the new scale CPU board over the spacers and reinstall the four screws.
6. Attach the connectors to the scale CPU board. Be sure to orient the connectors properly.
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Service Information
Replacing Scale CPU (Continued):
7. Reinstall the frame end (see page 9).
8. Place the new CPU board in diagnostics mode.
9. Press and hold LBS/KGS until the scale monitor displays INIT TO DEFAULTS.
10. Press and continue to hold WEIGHT SYSTEM ON until the scale monitor displays HOLD TO CHANGE
and then displays DEFAULTS ENTERED.
11. Press and release LBS/KGS until the scale monitor displays CHANGE LBS/VOLTS.
12. Follow the steps outlined previously under ”Entering New Load Cell Bar Codes” to enter the bar code numbers for all four load cells. It is not necessary to SA VE after each entry. Instead, at step 3, when the monitor
displays PICK CORNER NOW, select another corner with the proper position key. After all four corners
have been entered, SAVE the results as described in steps 5 and 6. DO NOT FORGET TO SAVE OR
THE NUMBERS WILL HAVE TO BE ENTERED AGAIN!!
13. Turn on the scale system and zero the bed, following the displayed instructions.
14. Place a known weight on the center of the bed; the heavier the better, and no less than 25 pounds. The
displayed weight should be within 1% of the actual weight.
15. If the displayed weight is not accurate, use the following procedure to calibrate the scale:
a. Remove the weight from the bed place the scale CPU in diagnostics mode.
b. Press and release LBS/KGS until the scale monitor displays CALIBRATE SCALE.
c. Press and hold WEIGHT SYSTEM ON. Zero the bed, following the displayed instructions. When the
bed is zeroed, the scale monitor should display REF X100=<2>000.
d. The displayed number must now be changed to match the known weight (from step 15) times 100. For
example, if you weighed yourself on a known good scale and you weigh 192.4 pounds, you would change
the REF number to equal 19240. Change the REF number using the procedure outlined previously
under ”Replacement of Load Cell Assemblies” i.e., use the LBS/KGS key to position the brackets around
the digit needing to be changed, and the ”LOCK/UNLOCK” key to change the bracketed digit.
e. After the number is corrected, press and release WEIGHT SYSTEM ON. The scale monitor should
display ADD LBS, HIT ON.
f. Place the weight used previously on the center of the bed and press and hold WEIGHT SYSTEM ON.
The scale monitor should display RELEASE TO CAL.
g. Release WEIGHT SYSTEM ON. The scale monitor should display DO NOT TOUCH BED. Don’t touch
the bed. When calibration is complete, the scale monitor should display CALIBRATE SCALE.
h. Press and release LBS/KGS until the scale monitor displays QUIT/SAVE.
i. Press and release WEIGHT SYSTEM ON. The scale monitor should shut off after one second.
j. Installation is now complete. Re–zero the empty bed and check the scale accuracy with the weight used
previously.
Activating/Deactivating Serial Option Mode:
To enter the serial option mode:
1. Enter the diagnostic mode. The scale monitor will display DOWNLOAD BARCODE when the diagnostic
mode is active.
2. Press and release LBS/KGS six times. The scale monitor should display SERIAL OPTION.
3. Press and release WEIGHT SYSTEM ON. The scale monitor should display SERIAL PORT ON or SERIAL PORT OFF depending on the current set–up.
4. Press and release LOCK/UNLOCK one time to toggle the Serial Port option on or off.
5. Press and release WEIGHT SYSTEM ON. The scale monitor should display SERIAL OPTION.
6. Press and release LBS/KGS until the scale monitor displays QUIT/SAVE.
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Service Information
Activating/Deactivating Serial Option Mode (Continued):
7. Press and hold WEIGHT SYSTEM ON. The scale monitor should display HOLD TO SAVE. Continue to
hold WEIGHT SYSTEM on until the scale monitor displays SAVE COMPLETE.
8. Release WEIGHT SYSTEM ON. The scale monitor will go blank after one second. The scale system will
now operate normally.
Serial Port Parameters
1. Normal bed function is not affected by the serial port, although some key response delays may be noted
when the serial port option is on. When on, the serial port transmits continuously whether the scale monitor
is on or off. Transmission pauses during ZERO BED, ZERO GAIN/LOSS, or CHANGE EQUIPMENT
functions.
2. Default serial port mode is 9600 Baud, no parity, 8 data bits, 1 stop bit. Default string terminator is CR/LF.
Transmitted data is identical to that displayed on the scale monitor.
3. Data transmit rate default is the same as the bed weight sample rate, or approximately once per second.
Sample rate will vary slightly with the weight on the bed, and will slow down when the scale monitor is on.
No handshake is provided, although the transmit rate is variable with some port options.
Stryker Medical Division, a division of Stryker Corporation, warrants to the original purchaser that its products
should be free from defects in material and workmanship for a period of one (1) year after date of delivery.
Stryker’s obligation under this warranty is expressly limited to supplying replacement parts and labor for, or
replacing, at its option, any product which is, in the sole discretion of Stryker, found to be defective. Stryker
warrants to the original purchaser that the frame and welds on its beds will be free from structural defects
for as long as the original purchaser owns the bed. If requested by Stryker, products or parts for which a
warranty claim is made shall be returned prepaid to Stryker’s factory. Any improper use or any alteration or
repair by others in such manner as in Stryker’s judgement affects the product materially and adversely shall
void this warranty. No employee or representative of Stryker is authorized to change this warranty in any way.
This statement constitutes Stryker’s entire warranty with respect to the aforesaid equipment. STRYKER
MAKES NO OTHER WARRANTY OR REPRESENTATION, EITHER EXPRESSED OR IMPLIED, EXCEPT
AS SET FORTH HEREIN. THERE IS NO WARRANTY OF MERCHANTABILITY AND THERE ARE NO
WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT SHALL STRYKER BE
LIABLE HEREUNDER FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM OR IN ANY
MANNER RELATED TO SALES OR USE OF ANY SUCH EQUIPMENT.
To Obtain Parts and Service:
Stryker products are supported by a nationwide network of dedicated Stryker Field Service Representatives.
These representatives are factory trained, available locally, and carry a substantial spare parts inventory to
minimize repair time. Simply call your local representative, or call Stryker Customer Service at (800)
327–0770.
Supplemental Warranty Coverage:
Stryker has developed a comprehensive program of extended warranty options designed to keep your equipment operating at peak performance at the same time it eliminates unexpected costs. We recommend that
these programs be activated before the expiration of the new product warranty to eliminate the potential of
additional equipment upgrade charges. Stryker offers the following Supplemental Warranties:
Extended (Parts and Labor)
SAll replacement parts (excluding mattresses and consumable items)
SLabor and travel for all scheduled and unscheduled calls
SBiannual Preventive Maintenance Inspections and repairs
SJCAHO paperwork for preventive maintenance
SPriority Emergency Service
Standard (Labor Only):
SLabor and travel for all scheduled and unscheduled calls
SBiannual Preventive Maintenance Inspections and repairs
SJCAHO paperwork for preventive maintenance
SPriority Emergency Service
Basic (Parts Only):
SAll replacement parts (excluding mattresses and consumable items)
SPriority Emergency Service
Please call your local representative, or call (800) 327–0770 for further information
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Warranty
Return Authorization:
Merchandise cannot be returned without approval from the Stryker Customer Service Department. An authorization number will be provided which must be printed on the returned merchandise. Stryker reserves the
right to charge shipping and restocking fees on returned items.
SPECIAL, MODIFIED, OR DISCONTINUED ITEMS NOT SUBJECT TO RETURN.
Damaged Merchandise:
ICC Regulations require that 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. Claim 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 receipt
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 thirty (30) days of invoice.
International Warranty Clause:
This warranty reflects U.S. domestic policy. W arranty outside the U.S. may vary by country. Please contact
your local Stryker Medical representative for additional information.
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6300 Sprinkle Road, Kalamazoo, MI 49001–9799 (800) 327–0770
DH 10/92 2010–1–111 REV __
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