Stryker 1068 User manual

1068 Head/Neck Surgery Stretcher
Maintenance Manual
For Parts or Technical Assistance
800–327–0770
Head/Neck Surgery Series
For stretchers with serial numbers of 9803034839 and above

Table of Contents
Introduction
Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning / Caution / Note Definition 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventative Maintenance
Maintenance Checklist 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Information
Caster Assembly Replacement 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Wheel Replacement 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Caster Cover Installation And Removal 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Cam Replacement 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Ring Replacement 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Adjustment 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pedal Linkage Adjustment 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Side Control Brake/Steer Gear Replacement 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uni–Pedal Replacement 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Replacement 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Assembly Torque Specification 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic System Troubleshooting 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal Of Excess Air (Vacuum) From The Hydraulic System 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Hydraulic Fluid Level 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Descent Rate Adjustment 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Check Valve Replacement
Replacement Of Valve #1 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Of Valve #2 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Of Valve (Poppet) #3 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Lubrication 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enhanced Clearance Head/Neck Assembly Replacement 17–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail Latch Adjustment 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Counterbalance Adjustment 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Parts 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly Drawings And Parts Lists
Side Control Base Assembly 22–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End Control Base Assembly 26–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Adjuster Assembly 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Cam Assembly 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side Control Pump Pedal Assembly 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Pedal Assembly 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End Control Pump Pedal Assembly 34, 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Assembly 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Base Assembly 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Assembly with Steerlock Caster Option 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steerlock Caster Assembly 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Caster Assembly 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Assembly with Optional Fifth Wheel Assembly 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
Assembly Drawings And Parts Lists (Continued)
Pivot Rod Assembly 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Arm Assembly 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Side Control Brake Assembly 44, 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Uni–Lower Pedal Assembly 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Dual Lowering Pedal Assembly 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Labeling Assembly 48–50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Litter Assembly 52, 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Support Assembly 54, 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail Lock Assembly 56, 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail Assembly 58, 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer System Assembly 60–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Support Assembly 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank Fowler Assembly 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank Fowler Head Assembly 66, 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Section Crank Assembly 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enhanced Clearance Fowler Subassembly 70, 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fowler Crankscrew Assembly 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stationary Foot Section Assembly 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knee Gatch Assembly 74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot & Thigh Section Assembly 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gatch Crankscrew Assembly 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Split Head Extension Kit 77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Extension Assembly 78, 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removable I.V. Pole Assembly 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–Stage I.V. Pole Mounting Assembly 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–Stage I.V. Pole Assembly 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I.V. Pole Latch Assembly 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–Stage I.V. Pole Mounting Assembly 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–Stage I.V. Pole Assembly 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3rd Stage Assembly 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Footboard/Chartholder Assembly 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oxygen Bottle Holder Assembly 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrist Rest Assembly 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temporal Wrist Rest Assembly 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drape Support Assembly 90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O2 Latch Assembly 91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defibrillator Tray Assembly 92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot Extension/Defibrillator Tray Assembly 93. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflatable Head Pad Assembly 94. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Rail Assembly 95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Assembly 96, 97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mattresses and Siderail Pads 98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty
Obtaining Parts and Service 99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Warranty Coverage 99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return Authorization 100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freight Damage Claims 100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3
Introduction
INTRODUCTION
This manual is designed to assist you with the maintenance of the 1068 Head/Neck SurgiBed. Read it thor-
oughly before using the equipment or beginning any maintenance on it.
SPECIFICATIONS
Maximum Weight Capacity 500 pounds
Overall Bed Length/Width 88”/31.5”
Minimum/Maximum Bed Height 22.5”/36”
Fowler Angle 0 to 90_
Knee Gatch Angle 0 to 35_
Trendelenburg/Reverse Trendelenburg –15_to +17_
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 en-
sure 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.

4
Preventative Maintenance
CHECKLIST
All fasteners secure (reference all assembly prints)
Siderails move and latch properly (page 20)
Engage brake pedal and push on the stretcher to ensure all casters lock securely (page 9)
Steer function working properly
All casters secure and swiveling properly
Body restraints working properly
I.V. pole intact and operating properly (page 81 –86)
Oxygen bottle holder intact and operating properly
Fowler operating properly (page 65)
Knee Gatch operating properly (page 74)
Trendelenberg/Reverse Trendelenberg operating properly
No rips or cracks in mattress cover
Arm boards intact and operating properly (page 20)
Arm board support levers intact and operating properly (page 63)
Ground chain intact
No leaks at hydraulic connections
Hydraulic jacks holding properly (page 12)
Hydraulic drop rate set properly (page 13)
Hydraulic oil level sufficient (page 13)
Lubricate where required, including the brake adjuster assembly and brake cam (page 16), and the
pin and block (”U”joint) on the Fowler assembly (page 66 & 67)
Serial No.______________
______________
______________
______________
______________
Completed By:_________________________________ Date:_____________
NOTE
References to the right or left side of the stretcher refer to the right and left sides of a patient
lying face up on the stretcher.

5
Cleaning
Hand wash all surfaces of the stretcher with warm water and mild detergent. Dry thoroughly. DO NOT
STEAM CLEAN, PRESSURE WASH, HOSE OFF OR ULTRASONICALLY CLEAN. Using these methods
of cleaning is not recommended and may void this product’s warranty.
Clean Velcro AFTER EACH USE. Saturate Velcro with disinfectant and allow disinfectant to evaporate. (Ap-
propriate 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. Iodophor type disinfectants are not recommended for use be-
cause staining may result. The following products have been tested and have been found not to have a harm-
ful 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% 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 cor-
rosive 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.

Service Information
6
CASTER ASSEMBLY REPLACEMENT
1. Remove the old caster assembly.
2. Install the replacement caster and caster nut. Tighten the caster nut to 90–105 ft.–lb. with a torque wrench.
NOTE
A new caster assembly with a 3M patch does not require the application of Loctite at assembly. However,
the patch is appropriate for only one installation. If the caster is removed and reassembled for any reason,
apply Loctite 242 to two or three threads of both the bolt and caster nut and tighten to 90–105 ft.–lb. with a
torque wrench.
FIFTH WHEEL REPLACEMENT
Required Tools:
Pliers String or Bungee Cord 3/16”Allen Wrench
(2) 9/16”Box End Wrenches
Procedure:
1. Apply the stretcher brakes.
2. Pump the litter up to full height.
3. Lift and support the base hood using string or bungee cord.
4. Using pliers, remove the cotter pin from the end of the fifth wheel pivot rod and remove the two washers.
5. Pull up on the fifth wheel arm and pull down on the tension spring to release the pressure on the arm.
6. Using a 3/16”Allen wrench, remove the hex Allen bolt from the center of the pivot rod and pull the pivot
rod out of the wheel arm.
7. Reverse the above steps to install a new fifth wheel assembly.
NOTE
To replace the wheel only, use two 9/16”box end wrenches to remove the bolt and nut holding it to the wheel
arm.

Service Information
7
CASTER COVER INSTALLATION AND REMOVAL
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.
Push with palm on cover until
ProperlyAttached
Cover
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
double prongs engage.
1.
2.
3.
Looking through the larger of the two side cut–outs,
Top View (Cut–Away)
Top View (Cut–Away)
Top View (Cut–Away)
to disengage single prong.

Service Information
8
BRAKE CAM REPLACEMENT
Brake Cam Part Number 715–201–213
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. Verify the brakes are operating properly. If adjustment is
required, see page 9. Reinstall the base hood.
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 caster covers on both casters (see page 7).
4. Remove one of the casters (see page 6). 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 verify they operate properly. If adjustment is required, see page 9. Reinstall the base
hood.

Service Information
9
BRAKE ADJUSTMENT
Required Tools:
3/32”Hex Allen Wrench
Pry Bar
Thread ”Locktite”
Flat on thread of stud must always be
aligned with the set screw. Turn must
always be full circle only.
BASE SIDE CONTROL PEDAL LINKAGE ADJUSTMENT
Required Tools:
3/8”Wrench 5/32”Hex Allen Wrench 7/16”Wrench
Bungee Cords
Adjustment Procedure:
1. Place 150–200 pounds on the litter and pump the litter up to full height.
2. Lift the base hood, separating the hood from the base frame. Using the bungee cords, support the base
hood.
3. Using a 3/8”wrench and a 5/32”hex Allen wrench, loosen the appropriate pedal linkage adjustment nut
until the jack stops ”drifting”. Raise the litter to full up.
4. Tighten the pedal linkage adjustment nut until the jack begins to slowly descend.
5. Using a 7/16”wrench, back the pedal linkage adjustment nut out four full turns. Raise the litter to full up.
6. Loosen the pedal linkage adjustment nut and ensure no drift occurs. If the jack drifts, repeat procedure.

Service Information
10
BASE SIDE CONTROL BRAKE/STEER GEAR REPLACEMENT
Required Tools:
Pliers String or Bungee Cord Floor Jack or Equivalent
1/8”Allen Wrench 5/32”Allen Wrench 3/8”Box End Wrench
(2) 9/16”Box End Wrenches 3/16”Punch 1/4”Punch
Hammer
Procedure:
1. Apply the stretcher brakes.
2. Pump the litter up to full height.
3. Lift and support the base hood using string or bungee cord.
4. Using pliers, remove the cotter pins from both jack pump pistons and the pump linkage.
5. Using the 9/16”box end wrenches, remove the two bearing plate bolts.
6. Remove the cotter pin on the side brake bar.
7. Remove the bearing plate and pull out the idler gear rod while holding onto the gear. Lift the gear out.
8. Slide the miter gear away from the rod spacer and remove the dowel pin.
9. Using the floor jack, raise the side of the base you are working on approximately four inches.
10. Rotate the brake bar so the pedals are upside down.
11. Using a 1/4”punch and a hammer, remove the groove pin from the side brake rod.
12. Using a 3/16”punch and hammer, remove the 3/16”groove pin from the pedal.
13. Using a 5/32”Allen wrench, remove the set screw from the collar inside the gear box.
14. Remove the brake rod while holding the gear on the rod.
15. Using a 1/8”Allen wrench and a 3/8”box end wrench, remove the nuts and bolts holding the brake link
to the rod.
16. Using a 5/32”Allen wrench, remove the set screw from the collar outside of the gear box.
17. Using a 1/4”punch, remove the roll pin from the cam and brake link collar.
18. Reverse the above steps to install the replacement gear.
19. Inspect each gear for wear. Lube with MPG–2 grease or the equivalent if necessary.
UNI–PEDAL REPLACEMENT
Required Tools:
Drill w/3/16”Drill Bit Floor Jack Pop Rivet Tool
Replacement Procedure:
1. Set the stretcher brake and pump the litter up fully.
2. Use the floor jack to raise the side of the base frame off the floor approximately four inches.
3. Using a drill with a 3/16”drill bit, drill out the rivets on the bottom of the pedal to be replaced.
4. Using a pop rivet tool and rivets, install the replacement pedal.
5. Lower the stretcher to the floor. Test the operation of the pedal before returning the stretcher to service.

Service Information
11
JACK REPLACEMENT (WITHOUT COMPRESSION SPRING)
Required Tools:
3/8”Wrench 1/2”Socket 1/2”Wrench
Needle–Nosed Pliers
Replacement Procedure:
1. Apply stretcher brakes. Raise litter to full up. Raise Fowler to full up and raise siderails.
2. Use a 3/8”wrench to remove the bolt in the litter support tube above black bellows on both ends.
3. With the assistance of another person, lift off the stretcher litter and set it aside, taking care not to damage
the siderails, etc.
4. Push down on the jack actuator to put the jack in the full down position.
5. Lift off the plastic base hood, separating the Velcro holding it to the base frame.
6. Using a 1/2”socket and 1/2”wrench, remove the four bolts, washers and nuts holding the jack support
straps to the base frame.
7. Using needle–nosed pliers, remove the two cotter keys on the pump link and remove the pump link.
8. Using a 1/2”socket and a 1/2”wrench, remove the four bolts holding the jack base to the base frame (using
a 3”extension may be required). Remove the jack from the base frame.
9. Reverse steps 6–8 to install the replacement jack. Reinstall the base hood and the stretcher litter.
JACK REPLACEMENT (WITH COMPRESSION SPRING)
Required Tools:
3/8”Wrench Needle–Nosed Pliers Straight Screwdriver
Spring Compression Tool
Replacement Procedure:
1. Apply stretcher brakes. Raise litter to full up. Raise Fowler to full up and raise siderails.
2. Use a 3/8”wrench to remove the bolt in the litter support tube above black bellows on both ends.
3. With the assistance of another person, lift off the stretcher litter and set it aside, taking care not to damage
the siderails, etc.
4. Push down on the jack actuator to put the jack in the full down position.
5. Lift off the plastic base hood, separating the Velcro holding it to the base frame.
6. Using needle–nosed pliers, pull cotter pin from pump cylinder.
7. Using a straight screwdriver and pump spring compression tool (available upon request), compress the
pump spring and pry the pump link out of the pump cylinder.
CAUTION
Be sure not to let the pump piston come out of the jack or damage may occur.
8. Remove and replace jack as described in the procedure above.
9. Replace pump spring and pump link using the straight screwdriver and the pump compression tool.
10. Reinstall the base hood and the stretcher litter.

Service Information
12
JACK ASSEMBLY TORQUE SPECIFICATION
Jack Assembly with Threads Oiled
1. Jack Cap Assembly to Jack Actuator Cylinder 75 to 85 Foot Pounds
2. Jack Actuator Cylinder to Jack Base Assembly 55 to 65 Foot Pounds
Jack Base Assembly with Threads Oiled
1. Jack Pump Cylinder to Jack Base Machined 45 to 55 Foot Pounds
2. Jack Pin Housing to Jack Base Machined 35 to 45 Foot Pounds
3. Jack Base Plugs to Jack Base Machined 8 to 12 Foot Pounds
4. Jack Valve Plug to Jack Base Machined 8 to 12 Foot Pounds
HYDRAULIC TROUBLESHOOTING
Be sure the pedal linkage has been adjusted properly before beginning service on the jacks (see page 9).
PROBLEM/SYMPTOM SOLUTION
Jack will not raise to full height. Add hydraulic fluid (see p.13). Check for leaks.
Jack will not hold in raised position. Close the needle valve completely. If the jack
holds, replace valve #1 (see p. NO TAG). 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. 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).
Jack will not pump up but the jack actuator rod
does move when the pump pedal is activated. Replace valve #2 (see p. 15).
Jack will not pump up and the jack actuator rod
may or may not move. Remove excess air (vacuum) in system (see be- low).
Contact Stryker technical service at 1–800–327–0770 for further assistance.
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 9).
2. Using pump pedal, actuate system several times. This will force the air through the system and the jack
should now pump up.

Service Information
13
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.
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 bungee cords, 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 de-
scent.
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 bungee cords 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.

Service Information
13.1
CONSTANT FLOW JACK DESCENT RATE ADJUSTMENT
Required Tools:
Bungee Cords
Adjustment Procedure:
1. Pump the litter up to full height
2. Lift the base hood, separating the Velcro holding it to the base frame.
3. The adjustable descent valve is located on the base of the jack and has a blue knob on the end. To adjust,
loosen the silver locking ring by turning it counterclockwise. Turning the blue knob clockwise will increase
the rate of litter descent. Turning it counterclockwise will decrease the rate of descent.
4. Adjust the valve so that the jack at the foot end of the stretcher will descend slightly faster than the jack
at the head end.
5. Remove the bungee cords supporting the base hood and secure the hood to the base frame.
ADJUSTABLE PRESSURE COMPENSATED (P.C.) VALVE REPLACEMENT
P.C. valve part number 5050–70–50
WARNING
To avoid personal injury or damage to the stretcher, always remove the litter and the base hood before begin-
ning service on the jacks. Lower the jack rod completely to relieve the pressure on the pump piston side of
the jack.
Required Tools:
3/8”Wrench 13/16”Wrench
Replacement Procedure:
NOTE
It requires two people to safely perform this procedure.
1. Apply the stretcher brakes. Raise the litter to full up. Raise the Fowler and the siderails.
2. Using a 3/8”wrench, remove the bolts in the litter support tubes above the black bellows on both ends
of the litter.
3. With the assistance of another person, lift the litter off the base and set it aside, taking care not to damage
the leg section linkages and other litter components.
4. Push down on the jack actuator to put the jack in the full down position.
5. Lift off the plastic base hood, separating the Velcro holding it to the base frame.
6. Using a 13/16”wrench, remove the adjustable P.C. valve (see page 37.3 for part reference).
7. Check for any contaminants in the valve as well as in the jack base.

Service Information
13.2
ADJUSTABLE PRESSURE COMPENSATED (P.C.) VALVE REPLACEMENT (CONTINUED)
8. Install the replacement P.C. valve. Moisten the O–ring seal with hydraulic fluid to ensure a tight seal.
9. Tighten the valve manually and then an additional 1/8–1/4 turn with a 13/16”wrench. Do not over –tight-
en or damage may occur to the O–ring seal.
10. Pump up the jack to the maximum height and press the release pedal to lower it to check the jack’s opera-
tion.
11. Check for any hydraulic fluid leaks before replacing the base hood and litter.
NOTE
The jack descent rate was preset at the factory to lower the foot end 3–7 seconds faster than the head. It
is recommended to have the foot end lower faster to avoid patient disorientation.

Service Information
14
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 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 (3) and discard the seal (4).
2. Remove the valve plug (5).
3. Using a stiff wire with a bent, pointed end, remove the valve (1) and the seal (6) and discard the seal.
4. Install the new seal (6) flat to the bottom of its hole with a 1/2”diameter rod.
5. Install the new valve (1) with the beveled end out (as shown in the illustration).
6. Install the valve plug (5) and tighten to 10 foot–pounds torque.
7. Install the new seal (4) with the base plug (3) 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.
FILLER PLUG
ITEM PART NO. PART NAME
1 926–20–153 Check Valve
2 715–1–341 Poppet
3 715–1–301 Base Plug
4 926–20–156 Seal
5 715–1–309 Valve Plug
6 926–20–154 Seal
7 715–1–301 Base Plug
8 926–20–156 Seal
9 390–2–134 Con. Comp. Spring
10 1210–70–9 Valve Assembly*
10 715–270–100 Valve Assembly**
11 45–966 O–Ring
12 45–967 O–Ring
13 715–100–325 Pump Piston
* Used on jack part number 1210–70–10.
** Used on jack part number 715–270–10.
(See label on side of jack reservoir for jack
part number).

Service Information
15
HYDRAULIC CHECK VALVE REPLACEMENT (CONTINUED)
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
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 (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.

Service Information
16
BASE LUBRICATION

Service Information
17
ENHANCED CLEARANCE HEAD/NECK ASSEMBLY REPLACEMENT
Required Tools
Two 3/4”Open End Wrenches (preferably one thin one)
1/8”Roll Pin Punch
Combination 3/8”Wrench or Socket
Hammer
Small Standard Screwdriver (1/16”max. blade thickness x 1/4”width)
7/16”Diameter Rod, Dowel or Punch (Optional)
HEAD SECTION REMOVAL PROCEDURE
(Refer to drawing number 1068–232–10 pages 70 & 71 for part reference)
1. Raise the bed to a comfortable working height.
2. Remove the plastic neck piece cover (item X). Rotate the neck piece so it is parallel to the ground.
3. Using an 1/8”roll pin punch, punch out the 1/8”roll pin (item AX) in the back of the anti–rotation gear
(item K).
4. To loosen the anti–rotation adjustment wedge, use the screwdriver to hold the anti–rotation adjustment
screw (item M) from underneath the neck section and, using the 3/8”wrench or socket, loosen the lock
nut on top (item AK). (It is not necessary to completely remove the lock nut or adjustment screw).
5. Allow the head and neck assembly to drop down for easier access to the jam nuts (item AL) and flange
nuts (item AF) on the neck pivot rod (item T). Loosen the jam nut and the flange nut closest to the left
side (the gear and wedge side) on the pivot rod and spin the nuts as far to the left as possible.
WARNING
Support the head/neck assembly to prevent it from falling and causing damage or injury during the removal
of the neck pivot rod.
6. From the left side, push the neck pivot rod (item T) as far right as possible. A thin nylon washer (item AT)
may fall out from between the neck assembly and the Fowler adapter bracket on the left.
7. Spin the the jam nut and flange nut that were loosened in step 5 to the left and remove them from the rod.
Remove the second jam nut and flange nut. Being sure to support the head/neck assembly, push the
pivot rod out to the right. Another thin nylon washer may fall out from between the neck assembly and
the Fowler adapter bracket on the right.