Stryker Medical 1068 User manual

IMPORTANT
File in your
maintenance
records
1068 Head/Neck SurgiBed
MAINTENANCE MANUAL
For stretchers with serial numbers of 9711034753 and above
For Parts or Technical Assistance
1–800–327–0770

Table of Contents
INTRODUCTION 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARNING / CAUTION / NOTE DEFINITION 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PREVENTATIVE MAINTENANCE 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIDERAIL LATCH ADJUSTMENT 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ARM BOARD COUNTERBALANCE ADJUSTMENT 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENHANCED CLEARANCE HEAD/NECK ASSEMBLY REPLACEMENT 5.1–5.3. . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING EXCESS AIR 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 #3 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKE ADJUSTMENT 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BASE LUBRICATION POINTS 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLY DRAWINGS AND PARTS LISTS
Side Control Base Assembly 16–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump Pedal Assembly 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Release Pedal Assembly, Left & Right 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End Control Base Assembly 21–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Pedal Assembly, Head & Foot 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump Pedal Assembly, Head & Foot 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Adjuster Assembly 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Cam Assembly 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Assembly 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Base Assembly 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Caster Assembly (Steerlock) 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Wheel Assembly 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End Control Base Labeling Assembly 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End Control Graphics 32.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side Control Graphics 32.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side Control Base Labeling Assembly 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Litter Assembly 34, 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail Lock Assembly 35.1 & 35.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Support and Trend. Limiter Assembly, Head End 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trend. Limiter Assembly 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Support Assembly, Foot End 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board to Frame Assembly 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Support Assembly 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Assembly, Left 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Assembly, Right 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank Fowler Assembly 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
ASSEMBLY DRAWINGS AND PARTS LISTS (CONTINUED)
Enhanced Clearance Fowler Subassembly 43.1, 43.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank Fowler Subassembly 44, 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Section Crank Assembly 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fowler Crankscrew Assembly 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knee Gatch Assembly 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot & Thigh Section Subassembly 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knee Gatch Crankscrew Assembly 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stationary Footsection Assembly 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Split Head Extension Kit 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Left Head Extension Assembly 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Head Extension Assembly 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail Assembly 55–55.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Permanent I.V. Pole Assembly 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Permanent I.V. Pole and Socket Assembly 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Permanent I.V. Pole Assembly 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Permanent 3–Stage I.V. Pole Assembly 58.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–Stage I.V. Pole Assembly 58.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2nd Stage Assembly 58.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3rd Stage Assembly 58.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot Board/Chartholder Assembly 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oxygen Bottle Holder Assembly 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrist Rest Assembly 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temporal Wrist Rest Assembly 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drape Support Assembly 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defibrillator Tray Assembly 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot Extension/Defibrillator Tray Assembly 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflatable Head Pad Assembly 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Rail Assembly 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Assembly 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Assembly (with Direct Clamp) 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY
Obtaining Parts and Service 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supplemental Warranty Coverage 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return Authorization 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freight Damage Claims 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3
Introduction
INTRODUCTION
This manual is designed to assist you with the and maintenance of the 1068 Head/Neck SurgiBed. Read it
thoroughly 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 degrees
Knee Gatch Angle 0 to 35 degrees
Trendelenburg/Reverse Trendelenburg –15 degrees t +17 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 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.

Preventative Maintenance
4
CLEANING
1. Hand wash all surfaces of the bed with warm water and mild detergent. Dry thoroughly.
2. Clean Velcro AFTER EACH USE. Saturate Velcro with disinfectant and allow disinfectant to evaporate.
(Appropriate disinfectant for nylon Velcro should be determined by the hospital.)
NOTE
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 dam-
age 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.
BIANNUAL CHECKLIST
All fasteners secure (reference all assembly prints)
Siderails move and latch properly (page 5)
Engage brake pedal and push on the stretcher to ensure all casters lock securely (page 15)
Steer function working properly
All casters secure and swiveling properly
Body restraints working properly
I.V. pole intact and operating properly (page 56–58.4)
Oxygen bottle holder intact and operating properly (page 32 or 33)
Fowler operating properly
Knee Gatch operating properly (page 48)
Trendelenberg/Reverse Trendelenberg operating properly
No rips or cracks in mattress cover
Arm boards intact and operating properly (page 5)
Arm board support levers intact and operating properly (page 40)
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 11)
Lubricate where required, including the brake adjuster assembly and brake cam (page 15), and the
pin and block (”U”joint) on the Fowler assembly (page 44 & 45)
Serial No.______________
______________
______________
______________
______________
Completed By:_________________________________ Date:_____________

5
Service Information
SIDERAIL LATCH ADJUSTMENT
Required Tools:
1/8 Hex Allen Wrench
WARNING
The siderail latch adjustment is pre–set at the factory, and there should not normally be a need for readjust-
ment. If adjustment must be done it is important to follow the procedure below. If it is not done properly, injury
to the patient or user could occur.
Adjustment Procedure:
1. Using a 1/8 hex Allen wrench, adjust the hex Allen screw located on the latch assembly opposite the latch.
Turning the Allen screw clockwise will DECREASEthe amount of ”play”in the latching mechanism. Turn-
ing counterclockwise will INCREASE the amount.
NOTE
The amount of ”play”in the siderail, when in full up engaged position, should be approximately 1/8 to 3/16
inches.
CAUTION
Too much ”play”when the siderail is in the full up engaged position will give the siderail the appearance of
being unstable and could also cause premature wearing of the latch system.
Too little ”play”will obstruct the latch and keep it from engaging completely in the full up position, which may
cause damage to the latch and/or injury to the patient or user.
ARM BOARD COUNTERBALANCE ADJUSTMENT
Required Tools:
7/16 Open End Wrench
Adjustment Procedure:
1. Raise the transfer board to the full up position.
2. Unhook the extension spring at the eye bolt.
3. Using a 7/16 open end wrench, loosen the jam nut at the eye bolt.
4. Adjust the eye bolt to the desired position.
5. Tighten the jam nut.
6. Hook the extension spring to the eye bolt.
7. Allow the transfer board to lower on its own.
8. Repeat steps 1–7 until the desired counterbalance is achieved.

5.1
Service Information
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 43.2 & 43.3 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 the 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) by turning it counterclockwise. (It is not necessary to remove the lock nut or adjust-
ment 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 right.
7. Spin 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.

5.2
Service Information
ENHANCED CLEARANCE HEAD/NECK ASSEMBLY REPLACEMENT (CONTINUED)
HEAD SECTION INSTALLATION PROCEDURE
(Refer to drawing number 1068–232–10 pages 43.2 & 43.3 for part reference)
1. Put some grease on one of the thin nylon washers (item AT) and stick it to the left side of the Fowler adapt-
er bracket.
2. Slip the new head/neck assembly around both ends of the Fowler adapter bracket, keeping the nylon
washer in place between the assembly and the Fowler adapter bracket.
3. Align the holes on the left side of the head/neck assembly, the adapter bracket and the nylon washer.
If you have the optional 7/16”diameter rod, insert it through the holes to keep the parts in place.
CAUTION
Be sure to put only one of the thin nylon washers on the left side. More than one can adversely affect adjust-
ability and functionality of the head/neck assembly.
4. On the right side of the assembly, insert nylon washers (items AS and AT) as needed to fill the gap be-
tween the head/neck assembly and the Fowler adapter bracket.
5. Align the holes in the right side of the head/neck assembly, the Fowler adapter bracket and the nylon
washers. Insert the pivot rod (item T) from the right side with the small diameter end of the rod going
in first. WIth the pivot rod part way through, slip a jam nut (item AL) and a flange nut (item AF) with the
flange facing to the left and spin them on as far to the right side of the rod as possible.
6. Push the pivot rod just past the left side of the transfer link (item R) and insert the other flange nut (with
the flange facing to the right) and the other jam nut. Be sure both of these nuts are on the left side of
the transfer link and the two nuts put on in step 5 are on the right. Push the pivot rod through the support
tab.
7. Put grease on the angled surface of the back of the anti–rotation gear (item K). Put the gear in place with
the angle side of the anti–rotation gear facing the adjustment wedge (item N) and the anti–rotation gear
teeth engaging the teeth of the gear on the Fowler adapter bracket.
8. Push the pivot rod through as far as it will go. Adjust the jam and flange nuts as necessary to allow the
pivot rod to move through the left side of the assembly (If you used the optional 7/16”rod, the pivot rod
will push it out at this time. The 7/16”rod does allow the pivot rod to go through with minimal effort).
9. Rotate the head/neck assembly to a level position if you haven’t already done so.
10. Place a punch or other object through the hole on the right side of the pivot rod to provide something to
grasp when moving and angling the rod. Align the hole on the back of the anti–rotation gear with the hole
in the left side of the pivot rod. The alignment can be checked by inserting a 1/8”roll pin punch through
the holes. Hammer the roll pin (item AX) into the holes through the gear and rod until it is flush with the
surface of the gear.
11. Spin the flange nut on the left side until it is touching the transfer link (item R). Pull the left release handle
and spin the flange nut closer to the transfer link. Let go of the release handle and see if the anti–rotation
gear is in full contact with the other gear. Continue this procedure until the handle snaps into the locked
position when released. There should be some resistance on the handle just before it reaches the locked
position to ensure full engagement of the gear teeth, but not so much that the handle doesn’t reach the
locked position.
12. Pull the left release handle again and adjust the flange nut on the right side inward until it touches the
right side of the transfer link. Release the handle. While holding the flange nut with a thin 3/4”wrench,
use the other 3/4”wrench to bring the jam nut up tight to the flange nut.

5.3
Service Information
ENHANCED CLEARANCE HEAD/NECK ASSEMBLY REPLACEMENT (CONTINUED)
HEAD SECTION INSTALLATION PROCEDURE (CONTINUED)
(Refer to drawing number 1068–232–10 pages 43.2 & 43.3 for part reference)
13. Pull the left release handle again and be sure the anti–rotation gear pulls back as far as the adjustment
wedge will allow it to go. If it doesn’t go all the way, adjust the right side flange nut and jam nut to the
left until the anti–rotation gear reaches its full travel. While holding the flange nut with a thin 3/4”wrench,
use the other 3/4”wrench to bring the jam nut up tight to the flange nut. Repeat steps 11–13 until proper
adjustment of the release handle is achieved. When the adjustments are finished, be sure all the flange
and jam nuts are firmly locked together.
14. From under the head section, turn the anti–rotation adjustment screw (item M) counterclockwise until it
stops. Do not force it tighter! (You can adjust the neck section up high enough to see both sides of the
head section of it is easier).
15. While lifting lightly up and down on the head piece, push the adjustment wedge down as far as you can.
While holding the wedge down, turn the adjustment screw clockwise until you feel it contact the bottom
of the wedge. Holding the adjustment screw in this spot, tighten down the nut (item AK) on top of the
adjustment wedge.
16. Check the wedge adjustment by pulling and releasing the left handle and checking to see if the anti–rota-
tion gear has returned to its locked position against the other gear. If it hasn’t, the wedge is too tight.
Readjust the wedge by holding the adjustment screw and loosening the nut on top of the wedge. Turn
the adjustment screw clockwise in small amounts and tighten the nut again. Check the adjustment and
repeat the adjustment until the anti–rotation gear is locking properly against the other gear.
17. If the neck section seems loose when it is lifted up and down, the adjustment wedge is too loose. The
adjustment procedure is the same as in step 16 except the adjustment screw must be turned counter-
clockwise to adjust the wedge down tighter.
18. When all adjustments are complete, reinstall the plastic neck piece cover (item X).

5.4
Notes

6
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 lower-
ing 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.

7
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.

8
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.
1/8 Inch
Through Lug Nut
(60–65 Ft.–Lb.)
Support Tube
1 Inch
Dia.
Roll Pin
*Replacement Part Number 715–100–127 (Caster and Cover As-
sembly)

9
Service Information
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.

10
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.11). 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. 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 p. 11).
Contact Stryker technical service at 1–800–327–0770 for further assistance.

11
Service Information
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.
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.

12
Service Information
JACK DESCENT RATE ADJUSTMENT
Required Tools:
Screwdriver
(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 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 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.

13
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 appropri-
ate 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
3
14
12
13

14
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
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.

15
Service Information
BRAKE ADJUSTMENT
Required Tools:
3/32”Hex Allen Wrench
Pry Bar
Thread ”Locktite”
BASE LUBRICATION
1. Lubricate brake adjuster rod
around area shown with MPG–2
grease or equivalent.
Do not grease area shown.