Model SM204 M-Series Stretcher Maintenance Manual Rev D Aug 2006

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Page 3

Table of Contents

Assembly Drawings and Parts Lists

Big Wheel Base Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29−31

Base Assembly with Standard Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32, 33

Caster Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Drive Link Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Brake Rod Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Base Assembly with Dual Side Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37−39

Release Pedal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Pump Pedal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Cam Bracket Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Big Wheel Carriage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Base Assembly with Four−Sided Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44−46

Side Control Big Wheel Linkage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Side Control Big Wheel Carriage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48, 49

Base Assembly with 3−Sided Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50, 51

Release Pedal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Pump Pedal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Constant Descent Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Jack Base Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Base Labeling Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56−63

Litter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64, 65

Siderail Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66, 67

Siderail Latch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68, 69

Siderail Spindle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70, 71

Siderail Latch Spindle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72, 73

Dual Siderail Latch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74, 75

Latch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76−79

Standard Fowler/Stationary Foot Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80, 81

Standard Fowler/Knee Gatch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82−85

Standard Fowler Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86−89

Seat Section Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90, 91

Knee Gatch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92−95

Gatch Valve Body Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Gatch Cylinder/Hose Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Gatch Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Gatch Release Handle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Page 4

Table of Contents

Assembly Drawings and Parts Lists (Continued)

Thigh Section Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100, 101

Calf Section Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102, 103

Drop Seat Fowler/Stationary Foot Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104−107

Drop Seat Fowler Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Drop Seat Fowler/Knee Gatch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110−113

Corner Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114−117

Slider Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118, 119

Slider Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Monitor Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120, 121

Push Handle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

No Push Handle Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Scale Option − 26” Litter with Stationary Foot Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124−126

Scale Option − 26” Litter with Knee Gatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127−129

26” Scale Lift Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130, 131

Scale Option − 30” Litter with Stationary Foot Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132−134

Scale Option − 30” Litter with Knee Gatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135−137

30” Scale Lift Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138, 139

Scale Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140, 141

IV Poles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142−150

Oxygen Bottle Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151−155

Defibrillator Tray Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Defibrillator Tray/Foot Extender/Foot Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Serving Tray Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Foot Board/Serving Tray Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Foot Board/Chartholder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Mattresses and Siderail Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161, 162

Warranty

Obtaining Parts and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Service Contract Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

Return Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Freight Damage Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Page 5

Introduction

INTRODUCTION

This manual is designed to assist you with the maintenance of the Model SM204 Stretcher. Read it thoroughly

before using the equipment or beginning any maintenance on it.

SPECIFICATIONS

Maximum Weight Capacity

700 pounds

Overall Stretcher Length

84” ( .5”)

Overall Stretcher Width (Siderails Up)

33.5” & 37” ( .5”)

Overall Stretcher Width (Siderails Down)

30.25” & 30.75” ( .5”)

Minimum / Maximum Bed Height

20.75” / 34” ( .5”)

Fowler Angle

0 to 90 ° (

3°)

Knee Gatch Angle

0 to 40 ° (

1°)

Trendelenburg / Reverse Trendelenburg

+16 / −16 ° (

1°)

Optional Scale System Weight Operating Range

0 lbs. to maximum capacity of the stretcher

Optional Scale System Accuracy

Between 10° Trend & 10° reverse Trend*

 2 lbs. of weights below 100 lbs.

 2% of weights above 100 lbs.

Optional Scale System Environmental Requirements

for Operation

60_ F − 80_ F

0% − 90% Relative Humidity

* Scale does not meet accuracy claims at Trend angles outside the specified range.

Stryker reserves the right to change specifications without notice.

WARNING / CAUTION / NOTE DEFINITION

The words WARNING, CAUTION and NOTE carry special meanings and should be carefully reviewed.

WARNING

Alerts the reader about a situation, which if not avoided, could result in death or serious injury. It may also

describe potential serious adverse reactions and safety hazards.

CAUTION

Alerts the reader of a potentially hazardous situation, which if not avoided, may result in minor or moderate

injury to the user or patient or damage to the equipment or other property. This includes special care necessary for the safe and effective use of the device and the care necessary to avoid damage to a device that

may occur as a result of use or misuse.

NOTE

This provides special information to make maintenance easier or important instructions clearer.

Safe Working Load

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Page 6

Preventative Maintenance

CHECKLIST

All fasteners secure

Siderails move and latch properly

Engage brake pedal and push on the stretcher to ensure all casters lock securely

All casters secure and swivel properly

Body restraints working properly

IV pole intact and operating properly

Oxygen bottle holder intact and operating properly

Fowler operating and latching properly

Knee Gatch operating properly

Trendelenburg/Reverse Trendelenburg operating properly

No rips or cracks in mattress cover

Ground chain intact

No leaks at hydraulic connections

Hydraulic jacks holding properly

Hydraulic drop rate set properly

Hydraulic oil level sufficient

Lubricate where required

Accessories and mounting hardware in good condition and working properly

No cables worn or pinched (optional scale system)

All electrical connections tight (optional scale system)

All grounds secure to the frame (optional scale system)

Batteries sufficiently charged (optional scale system)

Display housing intact and not damaged (optional scale system)

Display label intact and not damaged (optional scale system)

Load cells intact and not damaged (optional scale system)

Scale calibrated properly. Recalibrate, if necessary (optional scale system)

Serial No. ______________

______________

______________

______________

______________

______________

Completed By:_________________________________

Date:_____________

NOTE

Preventative maintenance should be performed at a minimum of annually. A preventative maintenance program should be established for all Stryker Medical equipment. Preventative maintenance may need to be

performed more frequently based on the usage level of the product.

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5

Page 7

Cleaning

CLEANING

Model 1015 stretchers are designed to be power−washable. The unit may show some signs of oxidation or

discoloration from continuous washing. However, no degradation of the stretcher’s performance characteristics or functionality will occur due to power washing as long as the proper procedures are followed.

S

Follow the cleaning solution manufacturer’s dilution recommendations exactly.

S

Remove the mattress prior to washing the unit; do not wash the mattress with the stretcher.

S

Position the Fowler at 45_, place the unit in full reverse Trendelenburg (foot end down), raise the siderails,

and place the I.V. poles and push handles in the up position.

S

Stryker Medical recommends the standard hospital surgical cart washer for power washing Model 1015

stretchers.

S

Do not replace the mattress on the stretcher until the unit is completely dry.

S

Before returning the unit to service, verify all labels are intact, verify the brake/steer pedal locks properly

in both positions and check all components for proper lubrication.

DO NOT STEAM CLEAN THE UNIT. Use a maximum water temperature of 180_F/82_C. Maximum air dry

temperature (cart washers) is 240_F/115_C. Water pressure − 1500 psi/103.5 bar. If a hand held wand is

being used to wash the unit, the pressure nozzle must be kept a minimum of 24 inches/.61m from the unit.

Stretchers must have maintenance performed after a minimum of every fifth washing. Refer to the maintenance manual for specific lubrication instructions.

Failure to comply with these instructions may invalidate any/all warranties.

Do not use abrasive cleaners to clean the display enclosure for the optional scale system. Do not allow cleaning solutions or other fluids to pool on the display unit. Wipe dry all surfaces after spills or cleaning.

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Page 8

Cleaning

CLEANING (CONTINUED)

In general, when used in those concentrations recommended by the manufacturer, either phenolic type or

quaternary type disinfectants can be used. Iodophor type disinfectants are not recommended for use because staining may result. The following products have been tested and have been found not to have a harmful effect WHEN USED IN ACCORDANCE WITH MANUFACTURERS RECOMMENDED DILUTION.*

TRADE NAME

DISINFECTANT

TYPE

MANUFACTURER

*MANUFACTURER’S

RECOMMENDED

DILUTION

A33

Quaternary

Airwick (Professional Products Division)

2 ounces/gallon

A33 (dry)

Quaternary

Airwick (Professional Products Division)

1/2 ounce/gallon

Beaucoup

Phenolic

Huntington Laboratories

1 ounce/gallon

Blue Chip

Quaternary

S.C. Johnson

2 ounces/gallon

Elimstaph

Quaternary

Walter G. Legge

1 ounce/gallon

Franklin Phenomysan F2500

Phenolic

Purex Corporation

1 1/4 ounce/gallon

Franklin Sentinel

Quaternary

Purex Corporation

2 ounces/gallon

Galahad

Phenolic

Puritan Churchill Chemical Company

1 ounce/gallon

Hi−Tor

Quaternary

Huntington Laboratories

1/2 ounce/gallon

LPH

Phenolic

Vestal Laboratories

1/2 ounce/gallon

Matar

Phenolic

Huntington Laboratories

1/2 ounce/gallon

Omega

Quaternary

Airwick (Professional Products Division)

1/2 ounce/gallon

Quanto

Quaternary

Huntington Laboratories

1 ounce/gallon

Sanikleen

Quaternary

West Chemical Products

2 ounces/ gallon

Sanimaster II

Quaternary

Service Master

1 ounce/gallon

Vesphene

Phenolic

Vestal Laboratories

1 1/4 ounce/ gallon

Quaternary Germicidal Disinfectants, used as directed, and/or Chlorine Bleach products, typically 5.25% Sodium Hypochlorite in dilutions ranging between 1 part bleach to 100 parts water, and 2 parts bleach

to 100 parts water are not considered mild detergents. These products are corrosive in nature and

may cause damage to your stretcher if used improperly. If these types of products are used to clean

Stryker patient handling equipment, measures must be taken to insure the stretchers are rinsed with clean

water and thoroughly dried following cleaning. Failure to properly rinse and dry the stretchers will leave a corrosive residue on the surface of the stretcher, possibly causing premature corrosion of critical components.

NOTE

Failure to follow the above directions when using these types of cleaners may void this product’s warranty.

REMOVAL OF IODINE COMPOUNDS

This solution may be used to remove iodine stains from mattress cover and foam footrest pad surfaces.

1. Use a solution of 1−2 tablespoons Sodium Thiosulfate in a pint of warm water to clean the stained area.

Clean as soon as possible after staining occurs. If stains are not immediately removed, allow solution to

soak or stand on the surface.

2. Rinse surfaces which have been exposed to the solution in clear water before returning bed to service.

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7

Page 9

Service Information

CASTER COVER INSTALLATION AND REMOVAL

1.

Double Prongs

Single Prong

Looking through the larger of the two side cut−outs,

align the cover with the axle nut or bolt head, as shown.

Push down on the opposite side of the cover until the

single prong engages the caster horn.

Top View (Cut−Away)

2.

Push on the cover with your palm until

the double prongs engage.

Properly Attached

Cover

Top View (Cut−Away)

3.

To remove the wheel cover, insert a large screwdriver into the cut−out

in the side of the wheel cover and into the space between the double

prongs. Pry up the cover to disengage the double prongs and push

sharply upward to disengage the single prong.

Top View (Cut−Away)

CASTER REMOVAL

Required Tools:

9/16” Open End Wrench

1. Remove the caster cover.

2. While keeping pressure on the caster bolt with your index finger, use a 9/16” open end wrench to remove

the nylock hex nut on top of the caster assembly.

3. Using the brake ring, lift up on the base assembly and pull the caster assembly down to remove it.

4. Reverse steps 1−3 to install the new caster.

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Page 10

Service Information

BRAKE ROD REMOVAL

Required Tools:

Hammer

7/32” Punch

String or Bungee Cords

1. Pump the litter up to full height.

2. Lift the base hood and support it from the litter using string or bungee cords.

3. With the brake/steer pedal in the steer position, remove the clevis pin and rue ring cotter connecting the

brake rod to the brake rod drive link at each end of the stretcher.

4. Remove the two clevis pins and rue ring cotters connecting the brake rods to the drive arm at the center

of the base near the cam bracket assembly.

5. Pull on the butterfly “V” pedals to remove the brake rods from the base.

6. Reverse steps 1−5 to reinstall the brake rod.

CAUTION

When reattaching the brake rod assembly to the base frame, set the torque specs no higher than 15 ft.−lbs.

or damage could occur to the bolts.

SIDE CONTROL BRAKE ROD REMOVAL

Required Tools: Hammer

7/32” Punch

Needle Nose Pliers

String or Bungee Cords

1. Pump the litter up to full height.

2. Lift the base hood and support it from the litter using string or bungee cords.

3. Using a hammer and 7/32” punch, drive the groove pin out of the butterfly “V” pedal on the patient’s left

side and remove the pedal.

4. Using a hammer and 7/32” punch, drive out the groove pin connecting the side control link to the side

control brake rod.

5. Pull on the butterfly “V” pedal on the patient’s right side to remove the side control brake rod from the base.

6. Reverse steps 1−5 to reinstall the brake rod.

CAUTION

When reattaching the brake rod assembly to the base frame, set the torque specs no higher than 15 ft.−lbs.

or damage could occur to the bolts.

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9

Page 11

Service Information

RELEASE PEDAL ADJUSTMENT

1. Manually disengage the release pedal swivel (item G on page 38) from the release pedal assembly.

2. To increase the release rod engagement with the release valve, turn the release pedal swivel clockwise

on the threaded release rod.

3. To decrease the release rod engagement with the release valve, turn the release pedal swivel counterclockwise on the threaded release rod.

NOTE

If the pedal swivel assembly is threaded too far onto the release rod, the release valve will be partially activated and the jack will drift.

FOOT END RELEASE PEDAL REPLACEMENT

Required Tools:

Needle Nose Pliers

1. Apply the stretcher brakes.

2. Disconnect the release pedal return springs from the foot end release pedals.

3. Remove the rue ring cotters and the clevis pins connecting the foot end release pedals to the mounting

bracket.

4. Rotate the pedals upward.

5. Remove the rue ring cotters connecting the head end and foot end release rods to the foot end release

pedals and remove the pedals.

6. Reverse steps 2−5 to install the new pedals.

FOOT END RELEASE PEDAL ROD REMOVAL

Required Tools:

Needle Nose Pliers

1. Remove the foot end release pedal (see procedure above).

2. Remove the snap in nyliners holding the foot end pedal release rods in the pedal mounting bracket.

3. Unsnap the foot end pedal release rods from the white plastic release rod brackets.

4. Dislodge the side control release pedal swivels from the studs on the side control release pedal weldments.

5. Remove the foot end pedal release rods.

6. Reverse steps 1−5 to reinstall the pedal rods.

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Page 12

Service Information

BRAKE RING REMOVAL

Required Tools:

9/16” Socket w/Extension

3/8” Drive Ratchet

Needle−Nose Pliers

String or Bungee Cord

1. Pump the litter up to full height.

2. Lift the base hood and support it from the litter using string or bungee cords.

3. Using needle−nose pliers, unhook the extension springs from the top of the base caster tubes.

4. Remove the plastic caster covers.

5. While putting pressure on the caster carriage bolt, use a 9/16” socket and a 3/8” drive ratchet to remove

the caster nut on both sides of the stretcher.

6. Remove the casters.

7. Remove the brake rod (see procedure page 9).

8. Remove the cotter pin from the clevis pin in the center of the brake ring weldment.

9. Remove the cotter pin from the bearing pivot support.

10. Remove the 3/4” nylock hex nut from the bearing pivot support.

11. Remove the drive link assembly.

12. Pull the brake ring down and out away from the stretcher base frame.

13. Reverse steps 1−12 to reinstall the brake ring.

BIG WHEEL REMOVAL

Required Tools:

Large Standard Screwdriver

Small Standard Screwdriver

String or Bungee Cords

1. Lift the base hood and separate the Velcro holding it to the base frame. Support the hood from the litter

using bungee cords so it is out of the way.

2. Using a large, standard screwdriver, pop off the hub cap in the center of the wheel.

3. Using a small, standard screwdriver, remove the spiral retaining ring from the groove on the wheel axle.

4. Remove the Big Wheel.

5. Reverse steps 1−4 to reinstall the Big Wheel.

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Page 13

Service Information

BIG WHEEL CARRIAGE ASSEMBLY REMOVAL

Required Tools:

1/2” Socket

3/8” Drive Ratchet

Needle−Nose Pliers

1. Remove the litter top from the stretcher (see page 14).

2. Lift the base hood off the base frame.

3. With the brake/steer pedal in the steer position, remove the clevis pin and rue ring cotter connecting the

brake rod to the brake rod drive link at each end of the stretcher.

4. Remove the two clevis pins and rue ring cotters connecting the brake rods to the drive arm at the center

of the base near the cam bracket assembly.

5. Pull the brake shafts straight out away from the base.

6. Remove the four hex washer head screws holding the cam bracket assembly to the base frame and remove the cam bracket assembly.

NOTE

On a base with 4−sided brakes, remove the rue ring cotter and clevis pin connecting the side control big wheel

linkage assembly to the yoke weldment on the end control brake pad at the foot end of the stretcher.

7. Remove the two hex washer head screws holding the carriage weldment to the base frame and remove

the carriage assembly.

8. Reverse steps 1−7 to reinstall the carriage assembly.

SIDE CONTROL BIG WHEEL LINKAGE ASSEMBLY REMOVAL

Required Tools:

1/4” Punch

String or Bungee Cords

Hammer

Needle−Nose Pliers

1. Pump the litter up to full height.

2. Lift the base hood and support it from the litter using string or bungee cords.

3. Using a hammer and 1/4” punch, drive out the slotted spring pin connecting the butterfly “V” pedal on the

patient’s right side to the side control wheel axle.

4. Remove the butterfly “V” pedal and set it aside.

5. Using the hammer and 1/4” punch, drive out the slotted spring pin holding the side control Big Wheel linkage yoke weldment to the side control wheel axle.

6. Pull straight out on the patient’s left side butterfly “V” pedal and remove the side control wheel axle.

7. Using needle−nose pliers, remove the hair pin cotter and washer holding the toggle pivot plate to the side

control Big Wheel carriage assembly.

8. Remove the rue ring cotter and clevis pin connecting the side control Big Wheel linkage rod end link to

the end control brake rod.

9. Remove the side control Big Wheel linkage assembly and set it aside.

10. Reverse steps 1−9 to reinstall the linkage assembly.

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Page 14

Service Information

BIG WHEEL CAM GAS SPRING DAMPENER REMOVAL

Required Tools:

1/2” Socket

3/8” Drive Ratchet

Needle−Nose Pliers

1. Remove the litter top from the stretcher (see page 14).

2. Lift the base hood off the base frame.

3. Remove the two clevis pins and rue ring cotters connecting the brake rods to the drive arm at the center

of the base near the cam bracket assembly.

4. Pull the brake shafts straight out away from the base.

5. Remove the four hex washer head screws holding the cam bracket assembly to the base frame and remove the cam bracket assembly.

6. Remove the rue ring cotter from the dampener mounting pin and remove the pin.

7. Lift up on the (patient) left side of the cam bracket and remove the rue ring cotter holding the dampener

to the dampener arm and remove the dampener.

8. Reverse steps 1−7 to install the new dampener.

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Page 15

Service Information

LITTER TOP REMOVAL

Required Tools:

1/2” Socket w/Extension

3/8” Drive Ratchet

Standard Screwdriver

1. Using the foot pedal, pump up the litter top to full height.

2. Remove the stretcher mattress

3. Using a 1/2” socket, and a 3/8” drive ratchet, remove the truss head screws holding the jack support tubes

to the jack shafts.

4. Thread a 7/16−20 fine thread bolt far enough into the top of the jack supports to separate the litter top

from the jack shaft.

5. With the assistance of another person, lift the litter straight up to remove it from the jack shafts and set

it aside.

JACK DESCENT RATE ADJUSTMENT

Required Tools:

Screwdriver

Bungee Cords (or equivalent)

Adjustment Procedure:

1. Pump the litter up to full height.

2. Lift the base hood, separating the hood from the base frame. Support the hood from the litter using bungee cords so it is out of the way.

3. The descent rate needle valve is located on the base of the jack. Turning the needle valve clockwise,

with a screwdriver, will decrease the rate of descent. Turning it counterclockwise will increase the rate

of descent.

NOTE

The larger percentage of a patient’s weight is located in the torso area. Adjust descent rate accordingly.

4. Remove the bungee cords supporting the base hood and secure the hood to the base frame.

NOTE

The jack descent rate is preset at the factory and adjustment is not recommended.

REMOVAL OF EXCESS AIR (VACUUM) FROM THE HYDRAULIC SYSTEM

1. Verify all hydraulic linkages are secure and operating properly.

2. Using the pump pedal, actuate the system several times to force the air through the system. The jack

should now raise properly.

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Page 16

Service Information

HEAD END HYDRAULIC JACK REMOVAL

Required Tools:

1/2” Socket w/Extension

3/8” Drive Ratchet

1. Remove the litter top from the stretcher (see page 14).

2. Using a 1/2” socket with extension and a 3/8” drive ratchet, remove the two hex head screws holding the

jack base to the stretcher base frame.

3. Remove the two hex head screws holding the jack reservoir clamp to the base frame and remove the

clamps.

4. Lift straight up on the pump connecting rod and disconnect the pump piston from the connecting rod.

5. Disconnect the pump pedal swivel from the release pedal mounting plate.

6. Remove the head end release rod from the release valve assembly.

7. Using a 1/2” socket with extension and a 3/8” drive ratchet, remove the two hex head screws holding the

jack base to the stretcher base frame.

8. Lift out the jack assembly.

9. To reinstall the jack, install the bolts on the jack and reservoir clamp but do not tighten them fully.

10. Reinstall the pump connecting rod and release rod.

11. Depress the pump pedal fully (to the floor). This will properly locate the jack onto the base frame.

12. Tighten the bolts on the jack and reservoir clamp.

13. Pump up the litter and apply weight to verify the jacks hold and do not drift.

NOTE

The jack descent rate is preset at the factory and adjustment is not recommended.

FOOT END HYDRAULIC JACK REMOVAL (BASE WITH DUAL CONTROLS)

Required Tools:

1/2” Socket

3/8” Drive Ratchet

Pliers

1. Remove the litter top from the stretcher (see page 14).

2. Lift the base hood off the base frame.

3. Remove the two hex washer head screws and washers connecting the pump pedal link to the foot end

pump pedal assembly and pump connecting rod.

4. Remove the foot end release rod from the release valve on the jack assembly by dislodging the release

pedal swivel from the pins on the release pedal weldment.

5. Dislodge the jack pump piston from the pump connecting rod.

6. Remove the two hex washer head screws holding the reservoir clamp.

7. Remove the jack assembly.

8. Reverse steps 1−7 to install the new jack.

NOTE

The jack descent rate is preset at the factory and adjustment is not recommended.

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Page 17

Service Information

LITTER CORNER COVER REPLACEMENT

Required Tools:

Drill w/ 1/4” Bit

T25 Torx

Utility Knife

1. Drill out the rivet holding the IV pole and/or push handle in the socket and remove the IV pole/handle from

the socket.

2. Using a utility knife, pry off the three hole plugs in the top of the cover.

3. Using a T25 Torx, remove the 3 screws holding the top and bottom covers together and pull apart the

cover.

4. Reverse to install the new cover.

GATCH RELEASE HANDLE REPLACEMENT

Required Tools:

Needle Nose Pliers

1. Twist off the Gatch release handle knob.

2. Using needle nose pliers, remove the cotter pin holding the Gatch release rod to the Gatch release link.

3. Pull out the handle release rod.

4. Reverse to install the new Gatch release handle assembly.

GATCH VALVE BODY REPLACEMENT

Required Tools:

1/2” Socket

3/8” Drive Ratchet

Needle Nose Pliers

1. Using needle nose pliers, remove the rue clip and clevis pin connecting the Gatch pump ram to the pump

handle.

2. Using a 3/8” drive ratchet and a 1/2” socket, remove the three hex head bolts holding the Gatch valve

body to the Gatch weldment and the lock nut holding the release link. Carefully lower the valve body out

of the weldment.

3. Using needle nose pliers, remove the two rue clips and two clevis pins connecting the hydraulic cylinder

to the seat section and the thigh section. Remove the valve body assembly.

4. Reverse to install the new Gatch valve body assembly.

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Page 18

Service Information

SIDERAIL ASSEMBLY REMOVAL AND REPLACEMENT

Required Tools:

1/2” Socket

3/8” Drive Ratchet

Torque Wrench

1. Raise the Fowler. Remove the slider board from the storage tray.

2. Pull up on the monitor/utility tray to remove it from the litter frame.

3. If you’re replacing the left siderail assembly, use a 1/2” socket and 3/8” drive ratchet, remove the four hex

head cap screws holding the O2 holder bracket to the litter frame and remove the O2 holder.

4. Remove the four hex head cap screws holding the slider board tray to the litter frame.

5. Remove the rue ring cotter holding the Fowler pivot bolt and remove the pivot bolt.

6. Remove the two bolts holding the frame tie weldment.

7. Remove the pan head screws holding the plastic litter corner covers and remove the covers.

8. Remove the two bolts holding the Fowler drop seat bracket.

9. Remove the six bolts holding the siderail to the head end and foot end litter weldments.

10. Carefully remove the siderail assembly.

11. Slide the side of the stretcher with the remaining siderail next to a wall to brace it or support it with bungee

cords before starting to install the new siderail.

12. Lift the new siderail into position.

13. Insert the foot end jack support into the hole in the support tube bracket on the siderail. Insert the head

end jack support tube into the slot in the Trend slide block.

14. Install the three bolts at the foot end litter weldment. Tighten to 13 foot−pounds torque.

15. Install the two bolts at the frame tie weldment.

16. Install the three bolts at the head end litter weldment.

17. Install the two bolts at the Fowler drop seat bracket. Tighten to 13 foot−pounds torque.

18. Install the litter corner covers, the slider board tray, the O2 holder and the monitor tray.

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Page 19

Service Information

SIDERAIL LATCH REPLACEMENT

Required Tools:

3/8” Drive Ratchet

T40 Torx Bit

1. Using the foot pedal, raise the litter to maximum height.

2. Remove the two bolts (A) holding the siderail latch (B) to the litter frame and discard the bolts and latch.

3. Using the new bolts provided in the kit, install the new siderail latch.

4. Verify proper latching and unlatching of the siderail before returning the stretcher to service.

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Page 20

Service Information

PNEUMATIC CYLINDER REPLACEMENT

Required Tools:

3/8” Drive Ratchet

3/8” Socket

Needle Nose Pliers

1. Using a 3/8 drive ratchet and 3/8” socket, remove the bolt connecting the pneumatic cylinder to the Fowler

weldment. Save the bushing and spacers to use with the new cylinder.

2. Turn the cylinder counterclockwise to thread it out of the gas spring trip on the litter frame tie weldment.

3. Pull the Fowler cable off the gas spring trip.

4. Using needle nose pliers, pull off the rue ring cotter and remove the clevis pin holding the gas spring trip

to the litter frame tie weldment.

5. Depress the new cylinder fully.

6. Thread the cylinder into the gas spring trip until it stops.

CAUTION

Do not use a wrench, pliers, etc. to grip the cylinder. Gripping the cylinder too tightly may mar the surface

of the cylinder and cause damage.

NOTE

When reinstalling the bolt and the clevis pin, use the holes in each bracket nearest the foot end of the stretcher

for a drop seat Fowler and the holes in each bracket nearest the head end of the stretcher for a standard Fowler.

7. Replace the bolt, bushing and spacers holding the cylinder to the Fowler weldment. The bolt will only

thread through the bracket from the patient right side.

8. Lift the Fowler slightly until the parts are aligned and replace the clevis pin and the rue ring cotter to connect the gas spring trip to the litter frame tie weldment.

9. Reconnect the Fowler cable.

IV POLE REPLACEMENT

Required Tools:

T25 Torx

3/8” Drive Ratchet

Utility Knife

1/2” Socket

1. Using a utility knife, pry off the three hole plugs in the top of the litter corner cover.

2. Using a T25 Torx, remove the 3 screws holding the top and bottom covers together and pull apart the cover.

3. Remove the bolt holding the IV pole socket to the litter frame and remove the IV pole.

4. Reverse to install the new IV pole and reinstall the litter corner cover.

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Page 21

Service Information

OXYGEN BOTTLE HOLDER REPLACEMENT

Required Tools:

3/8” Drive Ratchet

1/2” Socket

1. Using the foot pedal, raise the litter to maximum height. Raise the Fowler to 90 degrees.

2. Remove the 3 bolts (A) holding the O2 bottle bracket (B) to the litter frame on the patient’s left side and

discard the bolts and bottle holder assembly.

3. Use the 3 bolts provided in the kit to attach the new bottle holder assembly to the litter frame.

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Page 22

Service Information

STATIC DISCHARGE PRECAUTIONS

The electronic circuits in the stretcher are completely protected from static electricity damage only while the

stretcher is assembled. It is extremely important that all service personnel always use adequate static protection when servicing the electronic systems of the stretcher. Whenever you are touching wires, you should

be using static protection.

Static Protection Equipment

The necessary equipment for proper static protection is:

S

1 static wrist strap; 3M part number 2214 or equivalent,

S

1 grounding plug; 3M part number 61038 or equivalent,

S

1 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 steps 2 and 3 of the following procedure. Do not place unprotected circuit boards on the floor. All circuit

boards returned to Stryker should be shipped in the static shielding bags the new boards were shipped in.

Static Protection Procedure

1. Turn off the main power switch at the foot end of the stretcher and unplug the power cord from the wall

receptacle.

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 the ground chain of the stretcher.

3. 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 stretcher.

STRETCHER

GROUNDING DIAGRAM

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Page 23

Service Information − Optional Scale System

SCALE DISPLAY BOX REPLACEMENT

Required Tools:

Wire Cutters

1/2” Open End Wrench

Phillips Screwdriver

Torque Wrench

1. Pump the litter up to full height.

2. Using a T27 Torx, remove the screws holding the litter foot end cover and the foot end corner covers.

3. Using wire cutters, cut all cable ties and disconnect the cables from the load cells.

4. Using a 1/2” socket, remove the six bolts holding the litter foot end weldment. Save the bolts for reuse.

5. Drill out the rivets holding the scale display box to the foot end weldment.

6. Plug the load cell cables into the display cables to verify the system is working, then unplug the cables.

7. Using two rivets, attach the new scale display box to the foot end weldment.

8. Using the six bolts removed in step 3, reattach the foot end weldment to the siderail tubes.

9. Reinstall the corner covers and the foot end cover,

10. Route the display cables and connect them to the load cell cables.

11. Using a known weight, verify scale function with the litter flat and in approximately 10 degrees Trend and

reverse Trend.

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Page 24

Service Information − Optional Scale System

SCALE DISPLAY COVER REPLACEMENT

Required Tools:

Utility Knife

Phillips Screwdriver

1. Using a utility knife, pry up a corner of the display label and remove the label from the upper display cover.

2. Using a Phillips screwdriver, remove the four screws holding the upper display cover to the display box

and lift off the cover and lens.

3. Remove the lens from the damaged display cover and install it on the new cover.

4. Using the four Phillips screws, reinstall the new upper display cover with the lens.

5. Clean the surface of the display cover with alcohol and install the new display label.

SCALE DISPLAY LENS REPLACEMENT

Required Tools:

Utility Knife

Phillips Screwdriver

1. Using a utility knife, pry up a corner of the display label and remove the label from the upper display cover.

2. Using a Phillips screwdriver, remove the four screws holding the upper display cover to the display box

and lift off the cover and lens.

3. Remove and discard the damaged lens. Install the new lens on the cover.

4. Using the four Phillips screws, reinstall the upper display cover with the new lens.

5. Clean the surface of the display cover with alcohol and install the new display label.

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Page 25

Service Information − Optional Scale System

SCALE DISPLAY BATTERY HOLDER REPLACEMENT

Required Tools:

Utility Knife

Heyco Pliers

Phillips Screwdriver

Static Protection Equipment

1. Properly ground yourself (see page 21).

2. Using a utility knife, pry up a corner of the display label and remove the label from the upper display cover.

3. Using a Phillips screwdriver, remove the four screws holding the upper display cover to the display box

and lift off the cover and lens.

4. Lift the PCB board out of the display box. Disconnect the battery cable from the PCB board.

5. Remove the two Phillips head screws holding the battery compartment cover on the display assembly.

6. Using Heyco pliers, reach inside the battery compartment, squeeze the strain relief on the battery cables

and push it up and out of the compartment.

7. Remove the strain relief from the cables and save it for reuse.

8. Pull the battery holder cables down through the hole in the battery compartment and discard the old battery holder.

9. Thread the cables on the new battery holder up through the hole in the battery compartment.

10. Attach the strain relief to the new battery holder cables, leaving 2 1/2 inches of cable at the top of the strain

relief. Push the strain relief down into the hole.

11. Connect the battery cable to the PCB board and reinstall the PCB board into the display box.

12. Put the battery holder back inside the battery compartment, install 4 AA batteries with the positive and

negative poles as indicated on the battery holder and reinstall the battery compartment cover using the

two Phillips head screws.

13. Using the four Phillips screws, reinstall the upper display cover with the lens.

14. Clean the surface of the display cover with alcohol and install the new display label.

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