Stryker Advantage Emergency Stretcher Service manual

IMPORTANT File in your

maintenance records

Advantage Series

1001 Emergency Care Stretcher 1501 PACU Stretcher

For stretchers with serial numbers of 971 1030538 and above

MAINTENANCE MANUAL

For Parts or Technical Assistance 1–800–327–0770

Table of Contents

Introduction

Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warning / Caution / Note Definition 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preventative Maintenance

Cleaning 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Biannual Checklist 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Information

Pneumatic Fowler Adjustment 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pedal Linkage Adjustment – Dual Side Control Base 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pedal Linkage Adjustment – Dual End Control Base 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Caster Assembly Replacement 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Caster Cover Installation And Removal 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hydraulic System Troubleshooting 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking Hydraulic Fluid Level 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal Of Excess Air (Vacuum) From The Hydraulic System 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jack Descent Rate Adjustment 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hydraulic Check Valve Replacement

Replacement Of Valve #1 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacement Of Valve #2 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacement Of Valve (Poppet) #3 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brake Adjustment 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Base Lubrication 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly Drawings and Parts Lists

Side Control Base Assembly (with Brakes) 16, 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brake Adjuster Assembly 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Brake Cam Assembly 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End Control Base Assembly (with Brakes) 20, 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End Control Brake Pedal Assembly 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Caster Assembly with Steerlock 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Caster and Caster Cover Replacement Kits 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fifth Wheel Assembly 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jack Assembly 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Jack Base Assembly 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Side Control Base Assembly (with Jacks) 28, 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pedal Base Assembly, Pump 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pedal Base Assembly 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End Control Base Assembly (with Jacks) 32, 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Pedal Assembly 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End Control Base Labeling Assembly 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

End Control Stretcher Graphics 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Side Control Stretcher Graphics 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Side Control Base Labeling Assembly 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Litter Assembly, Fold–to–Head Siderails 39, 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Siderail to Litter Assembly, Fold–to–Head 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Litter Assembly, Fold–to–Foot Siderails 42, 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Siderail to Litter Assembly, Fold–to–Foot 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

Assembly Drawings and Parts Lists (Continued)

Siderail Assembly 45, 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Head End Siderail Latch Assembly 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stationary Foot End Assembly 48, 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crank Knee Gatch Assembly 54–65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Knee Gatch Crankscrew Assembly 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pneumatic Fowler Assembly 67–74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crank Fowler Assembly 75, 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fowler Crankscrew Assembly 77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Head End Push Bar Assembly 78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Foot End Push Bar Assembly 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–Stage I.V. Pole Assembly 80–86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–Stage I.V. Pole Assembly 88–94. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tethered I.V. Pole to Frame Assembly 96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tethered I.V. Pole Trough Assembly 97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tethered I.V. Pole Assembly 98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I.V. Holder Assembly 99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

X–Ray Cassette Assembly 100–103. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Head Board/Push Bar Assembly (1001) 104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Head Board/Push Bar Assembly (1501) 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Foot Board/Chartholder Assembly 106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Upright Oxygen Bottle Holder Assembly 106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Foot Extension/Defibrillator Tray 107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Defibrillator Tray 108. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stirrup and Support Assembly 109. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Right Stirrup Support Assembly 110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Left Stirrup Support Assembly 111. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stirrup Assembly 112. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C–Spine Cassette Holder Assembly 113. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C–Spine Support Pole Assembly 114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C–Spine Storage Bracket Assembly 115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warranty

Obtaining Parts and Service 116. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supplemental Warranty Coverage 116. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Return Authorization 117. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Freight Damage Claims 117. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

INTRODUCTION

This manual is designed to assist you with the maintenance of the 1001 Emergency Care Stretcher and the 1501 PACU Stretcher. Read it thoroughly before using the equipment or beginning any maintenance on it.

SPECIFICATIONS

1001 1501

Maximum Weight Capacity 500 pounds 500 pounds Overall Bed Length \ Width 83 1/2” \ 31 1/2” 83 1/2” \ 34” Minimum \ Maximum Bed Height 22” \ 35” 22” \ 35” Fowler Angle 0 to 90 degrees 0 to 90 degrees Knee Gatch Angle 0 to 35 degrees 0 to 35 degrees Trendelenberg \ Reverse Trendelenberg +12 to –18 degrees +12 to –18 degrees

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.

WARNING

Patients should be discouraged from sitting directly on the ends of the stretcher. Excessive weight will cause the litter surface to tip up, possibly causing patient injury. Always apply the caster brakes when a patient is getting on or off the stretcher. Push on the stretcher to ensure the brakes are securely locked. Always engage the brakes unless the stretcher is being moved. Injury could result if the stretcher moves while a patient is getting on or off the stretcher.

Preventive Maintenance

CHECKLIST (PERFORM A MINIMUM OF BIANNUALLY)

All fasteners secure (reference all assembly prints) Siderails move and latch properly (page 52 & 53) Engage brake pedal and push on the stretcher to ensure all casters lock securely (page 15) Steer function working properly All casters secure and swivel properly Body restraints working properly I.V. pole intact and operating properly (page 86–99) Oxygen bottle holder intact and operating properly (page 106) Fowler operates and latches properly Knee Gatch operates 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 (page 10) Hydraulic drop rate set properly (page 12) Hydraulic oil level sufficient (page 12) Lubricate where required, including the brake adjuster assembly and brake cam (page 15) Accessories and mounting hardware in good condition and working properly

Serial No.______________ ______________ ______________ ______________ ______________

Completed By:_________________________________ Date:_____________

Cleaning

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.)

In general, when used in those concentrations recommended by the manufacturer, either phenolic type or quaternary type disinfectants can be used with Staph–Chek fabrics. Iodophor type disinfectants are not recommended for use on Staph–Chek fabrics because staining may result. The following products have been tested by the Herculite Laboratory and have been found not to have a harmful effect on Staph–Chek fabrics WHEN USED IN ACCORDANCE WITH MANUFACTURERS RECOMMENDED DILUTION.*

TRADE NAME

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

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

DISINFECTANT

Phenolic Purex Corporation 1 1/4 ounce/gallon

TYPE

MANUFACTURER

*MANUFACTURER’S

RECOMMENDED

DILUTION

Quaternary Germicidal Disinfectants, used as directed, and/or Chlorine Bleach products, typically 5.25% So dium 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. 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.

4.1

Notes

4.2

Service Information

PNEUMATIC FOWLER ADJUSTMENT (OUTSIDE MOUNTED CYLINDERS) Required Tools:

5/32” Hex Allen Wrench 1/2” Open End Wrench

Adjustment Procedure:

1. Refer to drawings 1210–31–120 or 1710–31–120 (Pneumatic Fowler Assembly, page 68 or page 72) for parts reference.

2. For easier access, move Fowler to 75 degrees or higher.

3. Using a 1/2” open end wrench, loosen the nuts (item K) in the actuator arms on the end of the trip bar (F).

4. To adjust the Fowler, use a 5/32” hex Allen wrench to turn the Allen screws (item N) 1 to 2 turns counterclockwise if the Fowler will not move or 1 to 2 turns clockwise if the Fowler will not hold its position.

5. Retighten the nuts. Be sure the Fowler will travel from flat to 90_ and down again and will hold its position when weight is applied before returning the stretcher to service.

PNEUMATIC FOWLER ADJUSTMENT (CENTER MOUNTED CYLINDERS) Required Tools:

3/32 Hex Allen Wrench 1/2 Socket w/Ratchet 1/8 Hex Allen Wrench Channel Lock Pliers 5/32 Hex Allen Wrench Towel or Cloth 7/16 Open End Wrench Thread ”Loctite”

Adjustment Procedure:

1. Refer to drawings 1211–31–10 & 1211–131–20 or 1711–31–10 & 1711–131–20 (Pneumatic Fowler Assembly, page 69 & 70 or page 73 & 74) for parts reference.

2. For easier access, move Fowler to 75 degrees or higher.

3. Using a 3/32” hex Allen wrench, remove set screws (K on p. 70 or 74), located in center of yokes (Y on p. 70 or 74).

4. Using a 9/16” box end wrench and 5/16” hex Allen wrench, remove the cap screws (A on p. 69 or 73), flat washers (C on p. 69 or 73) and hex nuts (D on p. 69 or 73) holding the gas cylinders (K on p. 69 or 73) to the litter frame.

5. To adjust the Fowler, turn the gas cylinder 1 to 2 turns counterclockwise if the Fowler will not move and 1 to 2 turns clockwise if the Fowler will not hold its position.

6. Replace the cap screws (A) and check the Fowler adjustment. Lower the Fowler approximately 10_ to 20_, release the handle and apply weight to the Fowler to assure it will hold its position. If the Fowler will not lower or will not hold its position when weight is applied, repeat step 5.

7. When the Fowler is properly adjusted, replace the washers (C) and hex nuts (D) to secure the pivot bolts.

8. Using thread locktite, reinstall set screws (K).

Service Information

PEDAL LINKAGE ADJUSTMENT – DUAL SIDE CONTROL BASE Required Tools:

3/32 Hex Allen Wrench 7/16 Open End Wrench 1/2 Open End Wrench (2) Wooden blocks (10 – 12 inches in length)

Adjustment Procedure:

1. Pump the litter up to full height.

2. Lift the base hood, separating the hood from the base frame. Using the wooden blocks, support the base hood.

3. To adjust the foot end descent pedal, use a 5/32 hex Allen wrench to loosen the set screw (C) in the stop collar (D) on the release rod. Hold the pedal parallel to the floor and slide the collar up to the bracket on the release rod. Tighten the set screw on the stop collar. Be sure the head end and foot end descent pedals are level with each other. Repeat for the head end pedal, if necessary.

4. Once the pedals are level, be sure the paddle on the end of the release rod for the foot end jack is slightly touching the actuating stem on the jack base. If it is not, use a 3/32 hex Allen wrench to loosen the set screw on the paddle hub. Adjust the paddle to JUST touch the stem of the jack. Tighten the set screw in the paddle hub. Repeat for the head end jack, if necessary.

5. Depress the pedal for the foot end jack. The jack should start to descend about the same time the paddle on the end of the rod contacts the sleeve on the jack actuating stem. The bracket on the foot pedal body should hit the stop screw (B). Any further movement could cause damage to the stem components inside the jack housing. To adjust the stop screw, use a 1/2 open end wrench to loosen the hex jam nut (A). Turn the screw and re–tighten the hex jam nut. Repeat for the head end jack.

6. Pump the litter up to full height.

7. Step on both descent pedals at the same time. Both ends of the litter should lower with the foot end lowering slightly faster than the head end. If it does not, refer to the procedure for adjusting the jack descent rate.

8. Remove the wooden blocks supporting the base hood. Use the pedal cut–outs on the side of the hood as a guide for proper re–positioning.

Service Information

PEDAL LINKAGE ADJUSTMENT – DUAL END CONTROL BASE Required Tools:

7/16 Open End Wrench 1/2 Open End Wrench (2) Wooden Blocks (10 – 12 inches in length)

Adjustment Procedure:

1. Pump the litter up to full height.

2. Lift the base hood, separating the hood from the base frame. Using the wooden blocks, support the base hood.

3. The descent pedals should be level with each other and there should be approximately 4 inches between the floor and the bottom of the pedal. To raise the pedal height, use a 1/2 open end wrench to loosen the hex jam nut (E). Using your hand, turn the screw (D) into the bracket. To lower the pedal height, loosen the screw. Tighten the hex jam nut (E) after the correct height is achieved.

4. Once the pedals are level, the release rod can be adjusted. Using a 7/16 wrench, turn nut (B) clockwise to shorten the release length and counterclockwise to increase the length.

5. Depress the pedal and be sure the jack descent is triggered when the pedal is approximately one inch from the floor. The descent should stop when the pedal is released and the jack height should hold. Repeat the above procedures for the descent pedal at the other end of the bed.

6. After adjusting each descent pedal individually, depress both pedals at the same time. Both jacks should start descending when the pedals are approximately one inch from the floor. The foot end should lower slightly faster than the head end. If it does not, see procedure for adjusting the jack descent rate.

7. Remove the wooden blocks supporting the base hood and secure the hood to the base frame.

Service Information

CASTER ASSEMBLY REPLACEMENT* Required Tools:

1/8 Roll Pin Punch Drill with 1/8 inch Drill Bit Flat Punch (any size larger than 1/8) Hammer Needle Nose Pliers Floor Jack 3/4 Inch Wrench (2) Wooden Blocks (10 – 12 inches in length) 1 Inch Wrench Torque Wrench (w/ Ft. Lbs. Adjust.)

Replacement Procedure:

1. Pump the litter up to full height.

2. Lift the base hood, separating the hood from the base frame. Using the wooden blocks, support the base hood.

3. Using a 1/8 roll pin punch and hammer, remove roll pin located in center of lug nut holding wheel assembly to base frame.

4. Carefully remove plastic wheel covers.

5. Using a floor jack, lift base frame approximately 4 inches off the ground.

6. While holding cap screw with a 3/4 inch wrench, turn lug nut with a 1 inch wrench to loosen wheel assembly from base frame. Remove wheel.

7. Install the new wheel assembly with new lug nut and tighten down to 60 – 65 foot–pounds torque.

WARNING

Never reuse the old lug nut, cap screw or roll pin once removed from base frame.

8. Lower the floor jack and set aside to be used, if needed, with another wheel.

9. Drill a 1/8 hole in center of lug nut, going completely through the lug nut.

CAUTION

Be careful not to ”oblong” the hole in the lug nut when drilling.

10. Using needle nose pliers, hold on to roll pin and tap into place. Finish driving roll pin with a flat head punch and a hammer until flush with the lug nut.

11. Install plastic wheel covers onto wheel.

12. Remove the wooden blocks supporting the base hood and secure the hood to the base frame.

*Replacement Part Number 715–100–127 (Caster and Cover Assembly)

1/8 Inch

Dia.

Through

Roll Pin

Lug Nut

(60–65 Ft.–Lb.)

Support Tube

1 Inch

CASTER MAINTENANCE

Required Tools:

5/8” Wrench 11/16” Wrench

Maintenance Procedure:

Service Information

1. Remove the plastic caster cover (see page 9).

2. Using the 5/8” wrench and the 11/16” wrench, remove the centerlock nut (item A) from the through bolt (item B) for the caster wheel.

3. Support the corner of the stretcher where the wheel is being removed and remove the through bolt (item B) and the molded wheel (item C) .

4. Clean the through bolt, molded wheel, and the inside of the caster horn (item D) removing any dirt and debris. Ensure the bearings in the molded wheel spin freely and easily.

5. Replace the molded wheel and the through bolt.

6. Replace the centerlock nut on the through bolt and use the 5/8” and 11/16” wrenches to tighten it securely.

8.1

Notes

8.2

Service Information

CASTER COVER INSTALLATION AND REMOVAL

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

Double Prongs

Single Prong

align cover with axle nut or bolt head, as shown. Push down on the opposite side of the cover until single prong engages with caster horn.

Top View (Cut–Away)

Push with palm on cover until double prongs engage.

To remove wheel cover, insert large screwdriver into cut–out in side of wheel cover and into the space between the double prongs. Pry up cover to disengage double prongs and push sharply upward to disengage single prong.

Properly Attached

Cover

Top View (Cut–Away)

Service Information

HYDRAULIC SYSTEM TROUBLESHOOTING

NOTE

Be sure the pedal linkage has been adjusted properly before beginning service on the jacks (see page 6 or page 7).

PROBLEM/SYMPTOM SOLUTION

Jack will not raise to full height. Add hydraulic fluid (see p.12). Check for leaks. Jack will not hold in raised position. Close the needle valve completely. If the jack

holds, replace valve #1 (see p. 14). If the jack does not hold, replace valve #2 (see p. 15).

Jack will not pump up and the jack actuator rod

does not move.

Jack will not pump up but the jack actuator rod

does move when the pump pedal is activated.

Jack will not pump up and the jack actuator rod may or may not move.

Close the needle valve. If the jack will now pump up, replace valve #1. If the jack still will not pump up after closing the needle valve, replace valve #3 (see p. 15).

Replace valve #2 (see p. 15).

Remove excess air (vacuum) in system (see p.

12).

Contact Stryker technical service at 1–800–327–0770 for further assistance.

Service Information

BRAKE RING REPLACEMENT

Brake Ring Part Number 715–1–61

Required Tools:

Phillips Screwdriver String or Bungee Cord Floor Jack, Small Crate (or equiv.) Large Standard Screwdriver 3/32” Allen Wrench 11/16” Socket & Ratchet 5/8” Wrench Needle–Nose Pliers (2) 7/16” Wrenches

Procedure:

1. Remove the four Phillips screws holding the base hood to the frame. Lift and support the base hood using string or bungee cord. Put the brake/steer pedal in the neutral position. Lift the end of the base needing service until the casters are approximately 12” off the floor and support it with a jack or the equivalent.

2. Using a 3/32” Allen wrench, loosen the set screw holding the brake adjuster to the brake ring and turn the adjuster clockwise to remove it.

3. Remove the wheel covers on both casters (see page 9).

4. Remove one of the caster assemblies (see page 8). On the other caster, use an 11/16” socket and ratchet and a 5/8” wrench to remove the nut and bolt holding the wheel on the caster horn and remove only the wheel.

5. Using needle–nose pliers, carefully squeeze and remove the spring between the brake cam and the brake ring.

WARNING

The spring is tightly compressed. Use caution when removing it or personal injury could result.

6. If you are working on an end control base, remove the spring from the pump pedal.

7. Lower the brake ring and remove it from the base. Remove the brake pads and bushings and install them on the new brake ring.

8. Reverse the above steps to install the new brake ring and reinstall the caster and wheel. Apply and release the brakes to ensure they operate properly. If adjustment is required, see page 15. Reinstall the base hood.

BRAKE CAM REPLACEMENT

Brake Cam Part Number 715–1–213

Required Tools:

Phillips Screwdriver String or Bungee Cord 3/32” Allen Wrench 1/8” Allen Wrench

Procedure:

1. Remove the four Phillips screws holding the base hood to the frame. Lift and support the base hood using string or bungee cord.

2. Using a 3/32” Allen wrench, loosen the set screw holding the brake adjuster to the brake ring and turn the adjuster clockwise to remove it.

3. Using a 1/8 ” Allen wrench, remove the shoulder bolt and nut holding the brake link on the cam and remove the cam.

4. Reverse steps 3 and 4 to install the new cam. Apply and release the brakes to ensure they operate properly. If adjustment is required, see page 15. Reinstall the base hood.

Service Information

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. Using the wooden blocks, support the base hood.

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.

4. Adjust the needle valve so that the foot end of the stretcher descends slightly faster than the head end.

NOTE

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

5. Remove the wooden blocks supporting the base hood and secure the hood to the base frame.

NOTE

The jack descent rate was preset at the factory to drop the foot end faster than the head. It is recommended that the foot drop faster to avoid patient disorientation.

CHECKING HYDRAULIC FLUID LEVEL Required Tools:

3/8 Open End Wrench 3/4 Open End Wrench

Procedure:

WARNING

To avoid personal injury or damage to the stretcher, remove the litter and the base hood before beginning service on the jacks.

1. Using a 3/8 open end wrench, remove square head set screws from both head and foot end jack support tubes. Remove litter top and set aside.

2. Lift base hood off base frame and set aside.

3. Be sure there are no hydraulic leaks. If there are, jack replacement will be necessary.

4. Lower the jack to the full down position.

5. Using a 3/4 open end wrench, slowly turn the fill plug located on the side of the reservoir counterclockwise to allow excess system pressure to vent. Remove the fill plug.

6. The hydraulic fluid should be visible at the bottom of the fill hole. If it is not, add Mobil Aero HFA hydraulic fluid (Stryker part number 2020–70–475) until the fluid is visible at the bottom of the fill hole. Replace the fill plug.

CAUTION

Use of other types of oil may damage hydraulic units.

7. Replace the hood and the litter.

Service Information

HYDRAULIC CHECK VALVE REPLACEMENT Required Tools:

3/8 Open End Wrench Stiff Wire (with bent, pointed end) Small Needle Nose Pliers 3/4 Open End Wrench Torque Wrench (with Ft. Lbs. adjust.) 7/32 Hex Allen Wrench 1/2 Inch Diameter Rod

Replacement of Valve #1

WARNING

To avoid personal injury or damage to the stretcher, remove the litter and the base hood before beginning service on the stretcher.

1. Using a 3/8 open end wrench, remove square head set screws from both head and foot end jack support tubes. Remove litter top and set aside.

2. Lift base hood off base frame and set aside.

3. Lower the jack to full down position. The actuator must be manually lowered while depressing the appropriate release pedal.

4. Remove the pin body assembly (4) with a 3/4 open end wrench and discard the housing gasket (5).

NOTE

Although the hydraulic fluid is not under pressure, some fluid loss will occur . The fluid loss should be minimal but covering the floor is advisable.

5. Using a 7/32 hex Allen wrench, remove the valve plug (6).

6. Using a stiff wire with a bent, pointed end, remove and discard the valve (1) and the seal (7).

7. Install the new seal (7) flat to the bottom of its hole with a 1/2 inch diameter rod and install the new valve (1) with the beveled end out (as shown in the illustration).

8. Install the valve plug (6) with the countersunk end first and the beveled end out. Tighten to 10 foot pounds torque.

9. Install the pin body assembly (4) with the new housing gasket (5) and tighten to 10 foot pounds torque.

10. Pump up the jack to the maximum height. Apply weight to be sure the jack holds its position and there are no hydraulic leaks before replacing the base hood and the litter.

ITEM PART NO. PART NAME

1 926–20–153 Check Valve 2 926–20–153 Check Valve 3 715–1–341 Poppet 4 715–100–312 Pin Housing Assembly*

715–270–100 Valve Assembly** 5 715–1–330 Housing Gasket 6 715–1–309 Valve Plug 7 926–20–154 Seal 8 715–1–101 Base Plug 9 926–20–156 Seal 10 715–1–309 Valve Plug 11 926–20–154 Seal 12 715–1–301 Base Plug 13 926–20–156 Seal 14 390–2–134 Conical Comp. Spring

* Used on jack part number 715–100–310. ** Used on jack part number 715–270–10.

(see label on side of jack reservoir for jack part number)

FILLER PLUG

12 13

Service Information

HYDRAULIC CHECK VALVE REPLACEMENT (CONT’D) Replacement of Valve #2

WARNING

To avoid personal injury or damage to the stretcher, remove the litter and the base hood before beginning service on the jacks. Lower the jack rod completely to relieve the pressure on the pump piston side of the jack. This will prevent large hydraulic fluid loss and possible damage when the base plugs are removed.

1. Remove the base plug (8) and discard the seal (9).

2. Remove the valve plug (10).

3. Using a stiff wire with a bent, pointed end, remove the valve (2) and the seal (11) and discard the seal.

4. Install the new seal (11) flat to the bottom of its hole with a 1/2” diameter rod.

5. Install the new valve (2) with the beveled end out (as shown in the illustration).

6. Install the valve plug (10) and tighten to 10 foot–pounds torque.

7. Install the new seal (9) with the base plug (8) and tighten to 10 foot–pounds torque.

8. Pump up the jack to the maximum height.

9. Be sure there are no hydraulic leaks before replacing the base hood and the litter.

Replacement of Valve (Poppet) #3

WARNING

1. Remove the base plug (12) and discard the seal (13).

2. Remove the compression spring (14).

3. Using a small needle nose pliers, remove the poppet (3).

4. Install the new poppet (3).

5. Install the compression spring (14).

6. Install the new seal (13) and the base plug (12) and tighten to 10 foot–pounds torque.

7. Pump up the jack to the maximum height to check its operation.

8. Check for hydraulic leaks before replacing the base hood and the litter.

REMOVAL OF EXCESS AIR (VACUUM) FROM THE HYDRAULIC SYSTEM Procedure:

1. Verify all hydraulic linkages are secure and operating properly (see pedal linkage adjustment procedure page 6 or 7).

2. Using pump pedal, actuate system several times. This will force the air through the system and the jack should now pump up.

Required Tools:

3/32” Hex Allen Wrench

Pry Bar

Thread ”Locktite”

Service Information

BRAKE ADJUSTMENT

BASE LUBRICATION

Do not grease area shown.

1. Lubricate brake adjuster rod around area shown with MPG–2 grease or equivalent.

Side Control Base Assembly (with Brakes)

Assembly part number 715–1–250

715–1–250 Side Control Base Assembly (with Brakes)

Item Part No. Part Name Qty.

A 715–1–245 Base Weldment Assembly 1 B38–211 Spring 1 C 715–1–158 Caster Nut 4 D 715–1–61 Caster Brake Assembly 2 E (Page 18) Brake Adjuster Assembly 2 F 715–1–231 Brake/Steering Rod Assembly 1 H 1000–10–62 Steering Lock Linkage Bar 1 J (Page 19) Brake Cam Assembly 2 L 715–1–94 Compression Spring 2 M21–50 Set Screw 2 P 715–1–11 Brake Cushion 4 R 946–1–116 Brake Bar Bushing 4 T23–25 Self–Tapping Screw 2 V 715–1–156 Grounding Chain 1 AA 715–201–201 Brake/Steer Pedal 2 AB 26–261 Groove Pin 2 AC 26–13 Roll Pin 1 AD 715–1–165 Actuator Plate Assembly 1 AH 42–20 Collar w/ Set Screw 2 AJ 8–17 Soc. Hd. Cap Screw 2* AK 14–2 Nylon Washer 4 AN 16–2 Fiberlock Nut 2 AR 3–20 Hex Hd. Cap Screw 1 AS 715–1–217 Fifth Wheel Latch 1 AT 16–16 Nylock Nut 1 AY 715–1–157 Fifth Wheel Bearing 1 AZ (Page 23) Steering Caster Assembly 1** BA 715–1–337 Fifth Wheel Plate Assembly 1 BB 16–49 Flexlock Nut 1 BC 715–1–161 Fifth Wheel Cam 1 BD 26–8 Roll Pin 1 BF 8–21 Soc. Hd. Cap Screw 1** BJ 715–1–149 Woodruff Key 1 BK (Page 25) Fifth Wheel Assembly 1 BL 81–219 Bearing 1 BN 715–1–136 Fifth Wheel Spring 1 BP (Page 24) Caster Wheel Assembly 3 ***

*Item AJ to be used only when fifth wheel is ordered. **Items AZ and BF to be used only when steerlock caster is ordered. ***Item BP quantity of four when fifth wheel is ordered.

STEERLOCK ASSEMBLY DETAIL

715–1–150 Brake Adjuster Assembly

Item Part No. Part Name Qty.

A 715–1–62 Threaded Stud Assembly 1 B14–4 Nylon Washer 4 C 715–1–180 Bearing 2 D28–8 Retaining Ring 2

715–1–213 Brake Cam Assembly

Item Part No. Part Name Qty.

A 715–1–221 Brake Cam 1 B16–59 Fiberlock Nut 1 C8–21 Soc. Hd. Cap Screw 1 D 715–1–173 Brake Connecting Link 1

Assembly part number 716–1–251

End Control Base Assembly (with Wheels and Brakes)

Note:

Parts and assemblies drawn with broken

lines are part of optional accessories.

End Control Base Assembly (with Wheels and Brakes)

Item Part No. Part Name Qty.

A 716–1–246 Base Weldment Ass’y1 B8–17 Soc. Hd. Shoulder Bolt 1 C 715–1–158 Caster Nut 4 D 715–1–61 Caster Brake Assembly 2 E (Page 18) Brake Adjuster Assembly 2 F 1210–1–345 Brake/Steer Pedal, Ft. End 1 H 1210–1–346 Brake/Steer Pedal, Hd. End 1 J (Page 19) Brake Cam Assembly 2 K26–8 Roll Pin 1 L 715–1–94 Compression Spring 2 M21–50 Set Screw 2 N 715–1–161 Fifth Wheel Cam 1 P 715–1–11 Brake Cushion 4 R 946–1–116 Brake Bar Bushing 4 T23–25 Self–Tapping Screw 2 Y16–49 Flexlock Nut 1 Z 715–1–337 Fifth Wheel Plate Ass’y1 AA 715–1–231 Brake/Steer Rod Weldment 1 AB 26–261 Clevis Pin 2 AC 715–1–157 Fifth Wheel Bearing 1 AD 715–1–165 Actuator Plate Assembly 1 AF 715–1–136 Fifth Wheel Spring 1 AH 42–20 Collar w/ Set Screw 2 AJ 8–17 Soc. Hd. Shoulder Bolt 1 AK 14–2 Nylon Washer 6 AL 16–16 Nylock Nut 1 AM 715–1–156 Grounding Chain 1 AN 16–2 Fiberlock Nut 2 AP 715–1–217 Fifth Wheel Latch 1 AR 3–20 Hex Hd. Cap Screw 1 AS (Page 23) Steering Caster Ass’y1 AT (Page 24) Caster Wheel Ass’y3 AY 81–219 Bearing 1 AW 26–13 Roll Pin 1 AZ (Page 25) Fifth Wheel Ass’y1 BA 715–1–149 Woodruff Key 1 BB 1000–10–62 Steering Lock Linkage Bar 1 BC 38–211 Spring 1 BD 8–21 Soc. Hd. Shoulder Bolt 1

STEERLOCK ASSEMBLY DETAIL

716–1–263 End Control Brake Pedal Assembly, Foot

Item Part No. Part Name Qty.

A 716–1–275 Brake Pedal 1 B 716–1–262 Brake Rod Ass’y, Ft. End 1

716–1–269 End Control Brake Pedal Assembly, Head

Item Part No. Part Name Qty.

A 716–1–275 Brake Pedal 1 B 716–1–267 Brake Rod Ass’y, Welded 1

NOTE

Apply plastic adhesive to the mating surfaces of item A prior to assembly.

715–2–21 Caster Assembly with Steerlock

Item Part No. Part Name Qty.

A 700–10–50 Steer Lock Caster Weldment 1 B 715–2–25 Caster Wheel 1 C16–60 Hex Nut 1 D3–99 Hex Bolt 1 E 715–3–96 Hex Bolt 1 F 1000–59–10 Latch Assembly 1 H11–310 Flat Washer 1

Caster and Caster Cover Replacement Kits

Item Part No. Part Name Qty.

A 715–2–20 Caster Assembly 1 B 715–1–266 Caster Cover, Left 1 C 715–1–265 Caster Cover, Right 1

P/N 715–259–400 – Kit to replace 4 standard caster assemblies with necessary hardware – no caster covers. P/N 715–269–400 – Kit to replace 3 standard caster assemblies and 1 steerlock caster with necessary hard-

ware – no caster covers. P/N 715–259–100 – Kit to replace 1 standard caster assembly with necessary hardware – no caster covers. P/N 1010–56–200 – Kit to replace both caster covers on all four wheels.

Optional Fifth Wheel Base Assembly

Item Part No. Part Name Qty.

A3–20 Hex Hd. Cap Screw 1 B16–16 Fiberlock Nut 1 C16–49 Nylock Hex Nut 1 D23–25 Hex Washer Hd. Screw 1 E26–8 Roll Pin 1 F81–219 Bearing 1 G (page 25) Fifth Wheel Assembly 1 H 715–1–136 Fifth Wheel Spring 1 J 715–1–149 Key 1 K 715–1–157 Fifth Wheel Bearing 1 L 715–1–161 Fifth Wheel Cam 1 M 715–1–217 Fifth Wheel Latch 1 N 715–1–337 Fifth Wheel Plate 1 P (page 24) Caster Assembly 4

24.1

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