Stryker 1069 Maintenance Manual
Head/Neck Surgery Series
1069 Head/Neck Surgery Stretcher
Maintenance Manual
For stretchers with serial numbers of 9901034660 and above
For Parts or Technical Assistance
800–327–0770
INTRODUCTION AND SET–UP INFORMATION
Introduction 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning/Caution/Note Information 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 1–2, 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PREVENTIVE MAINTENANCE
Cleaning 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance Checklist 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BASE MAINTENANCE
Caster Assembly Replacement 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Wheel Replacement 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Caster Cover Installation And Removal 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Cam Replacement 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Ring Replacement 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Adjustment 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Side Control Pedal Linkage Adjustment 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Side Control Brake/Steer Gear Replacement 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uni–Pedal Replacement 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Replacement 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Assembly Torque Specification 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Troubleshooting 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Excess Air From The Hydraulic System 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Hydraulic Fluid Level 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Descent Rate Adjustment 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Constant Flow Jack Descent Rate Adjustment 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustable Pressure Compensated (P.C.) Valve Replacement 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Jack Valve Replacement 3–11, 3–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Lubrication 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LITTER MAINTENANCE
Siderail Latch Adjustment 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Counterbalance Adjustment 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pneumatic Fowler Adjustment 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pneumatic Fowler Release Handle Adjustment 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pneumatic Cylinder Replacement 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Articulating Head Piece Adjustment 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
QUICK REFERENCE REPLACEMENT PARTS LIST
Quick Reference Replacement Parts List 5–1, 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLY DRAWINGS AND PARTS LISTS
Side Control Base Assembly 6–3 – 6–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End Control Base Assembly 6–7 – 6–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Adjuster Assembly 6–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Cam Assembly 6–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side Control Pump Pedal Assembly 6–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot End Pump Pedal Assembly 6–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head End Pump Pedal Assembly 6–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Assembly 6–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Base Assembly 6–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Constant Flow Jack Assembly 6–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Constant Flow Jack Base Assembly 6–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Pump Piston Assembly 6–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Assembly with Steerlock Caster Option 6–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Caster Assembly with Steerlock 6–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Caster Assembly 6–23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Assembly with Fifth Wheel Option 6–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pivot Rod Assembly 6–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Wheel Arm Assembly 6–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Side Control Brake Assembly 6–28, 6–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Uni–Lower Pedal Assembly 6–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLY DRAWINGS AND PARTS LISTS (CONTINUED)
Optional Dual Lowering Pedal Assembly 6–31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Labeling Assembly 6–32 – 6–34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Litter Assembly 6–35 – 6–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot End Jack Support Assembly 6–38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head End Jack Support Assembly 6–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Zero Articulating Pneumatic Fowler Assembly 6–41– 6–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single Articulating Pneumatic Fowler Assembly 6–46– 6–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual Articulating Pneumatic Fowler Assembly 6–52 – 6–57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Zero Articulating Crank Fowler Assembly 6–58, 6–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single Articulating Crank Fowler Assembly 6–60 – 6–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual Articulating Crank Fowler Assembly 6–64– 6–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crank Fowler Assembly 6–68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fowler Crankscrew Assembly 6–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual Articulating Head Piece Assembly 6–70 – 6–73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stationary Foot Section Assembly 6–74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knee Gatch Assembly 6–75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot and Thigh Section Assembly 6–76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knee Gatch Crankscrew Assembly 6–77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail to Litter Assembly, Two–Position Siderails 6–78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Two–Position Siderail Assembly 6–79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Siderail to Litter Assembly, Three–Position Siderails 6–80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three–Position Siderail Assembly 6–81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Transfer System Assembly 6–82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Transfer Board Assembly, Left 6–83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Transfer Board Assembly, Right 6–84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Transfer Board Support Assembly 6–85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Pre–Op Post–Op Head Piece Mounting Assembly, Crank Fowler 6–86, 6–87. . . . . . . . . . . . . .
Optional Pre–Op Post–Op Head Piece Assembly, Crank Fowler 6–88, 6–89. . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLY DRAWINGS AND PARTS LISTS (CONTINUED)
Standard, Removable I.V. Pole Assembly 6–90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional 2–Stage I.V. Pole Assembly 6–91, 6–92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional 3–Stage I.V. Pole Assembly 6–93–6–95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional I.V. Pole Latch Assembly 6–96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Foot Board/Chartholder Assembly 6–97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Upright Oxygen Bottle Holder Assembly 6–97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Foot Board Extension/Defibrillator Tray Assembly 6–98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Wrist Rest Assembly 6–99, 6–100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Drape Support Assembly 6–101. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessory Rail Assembly 6–102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Arm Board Assembly 6–103, 6–104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F–Size O2 Bottle Retainer Assembly 6–105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mattresses and Siderail Pads 6–106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
This quick reference guide will help you locate the section of the manual you need to service your
equipment or to order parts for it.
Find the black tab matching the section you are looking for and match it with the corresponding
tabs that mark the section in the body of the manual.
Refer to the main table of contents at the front of the manual or each sectional table of contents
to locate specific topics.
INTRODUCTION
This manual is designed to assist you with the maintenance of the 1069 Head/Neck Surgery Bed. Read it
thoroughly before beginning any maintenance on the equipment.
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 –18 to +18
Stryker reserves the right to change specifications without notice.
WARNING / CAUTION / NOTE DEFINITION
The words WARNING, CAUTION and NOTE carry special meanings and should be carefully reviewed.
WARNING
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.
page 1–1
Warranty
Limited Warranty:
Stryker Medical Division, a division of Stryker Corporation, warrants to the original purchaser that its products
should be free from defects in material and workmanship for a period of one (1) year after date of delivery.
Stryker’s obligation under this warranty is expressly limited to supplying replacement parts and labor for, or
replacing, at its option, any product which is, in the sole discretion of Stryker, found to be defective. Stryker
warrants to the original purchaser that the frame and welds on its beds will be free from structural defects
for as long as the original purchaser owns the bed. If requested by Stryker, products or parts for which a
warranty claim is made shall be returned prepaid to Stryker’s factory. Any improper use or any alteration or
repair by others in such manner as in Stryker’s judgement affects the product materially and adversely shall
void this warranty. Any repair of Stryker products using parts not provided or authorized by Stryker shall void
this warranty. No employee or representative of Stryker is authorized to change this warranty in any way.
Stryker Medical stretchers are designed for a 10 year expected life under normal use conditions and appropriate periodic maintenance as described in the maintenance manual for each device.
This statement constitutes Stryker’s entire warranty with respect to the aforesaid equipment. STRYKER
MAKES NO OTHER WARRANTY OR REPRESENTATION, EITHER EXPRESSED OR IMPLIED, EXCEPT
AS SET FORTH HEREIN. THERE IS NO WARRANTY OF MERCHANTABILITY AND THERE ARE NO
WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT SHALL STRYKER BE
LIABLE HEREUNDER FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM OR IN ANY
MANNER RELATED TO SALES OR USE OF ANY SUCH EQUIPMENT.
To Obtain Parts and Service:
Stryker products are supported by a nationwide network of dedicated Stryker Field Service Representatives.
These representatives are factory trained, available locally, and carry a substantial spare parts inventory to
minimize repair time. Simply call your local representative, or call Stryker Customer Service at (800)
327–0770.
Service Contract Coverage:
Stryker has developed a comprehensive program of service contract options designed to keep your equipment operating at peak performance at the same time it eliminates unexpected costs. We recommend that
these programs be activated before the expiration of the new product warranty to eliminate the potential of
additional equipment upgrade charges.
A SERVICE CONTRACT HELPS TO:
Ensure equipment reliability
Stabilize maintenance budgets
Diminish downtime
Establish documentation for JCAHO
Increase product life
Enhance trade–in value
Address risk management and safety
page 1–2
Warranty
Stryker offers the following service contract programs:
SPECIFICATIONS GOLD SILVER PM* ONLY
Annually scheduled preventative maintenance X X
All parts,** labor, and travel X X
Unlimited emergency service calls X X
Priority one contact; two hour phone response X X X
Most repairs will be completed within 3 business days X X
JCAHO documentation X X X
On–site log book w/ preventative maintenance & emergency service records X
Factory–trained Stryker Service Technicians X X X
Stryker authorized parts X X X
End of year summary X
Stryker will perform all service during regular business hours (9–5) X X X
* Replacement parts and labor for products under PM contract will be discounted.
** Does not include any disposable items, I.V. poles (except for Stryker HD permanent poles), mattresses, or damage re-
sulting from abuse.
Stryker Medical also offers personalized service contracts.
Pricing is determined by age, location, model and condition of product.
For more information on our service contracts,
please call your local representative or call (800) 327–0770 (option #2).
Return Authorization:
Merchandise cannot be returned without approval from the Stryker Customer Service Department. An authorization number will be provided which must be printed on the returned merchandise. Stryker reserves the
right to charge shipping and restocking fees on returned items.
SPECIAL, MODIFIED, OR DISCONTINUED ITEMS NOT SUBJECT TO RETURN.
Damaged Merchandise:
ICC Regulations require that claims for damaged merchandise must be made with the carrier within fifteen
(15) days of receipt of merchandise. DO NOT ACCEPT DAMAGED SHIPMENTS UNLESS SUCH DAMAGE
IS NOTED ON THE DELIVERY RECEIPT AT THE TIME OF RECEIPT. Upon prompt notification, Stryker
will file a freight claim with the appropriate carrier for damages incurred. Claim will be limited in amount to
the actual replacement cost. In the event that this information is not received by Stryker within the fifteen
(15) day period following the delivery of the merchandise, or the damage was not noted on the delivery receipt
at the time of receipt, the customer will be responsible for payment of the original invoice in full.
Claims for any short shipment must be made within thirty (30) days of invoice.
International Warranty Clause:
This warranty reflects U.S. domestic policy. Warranty outside the U.S. may vary by country. Please contact
your local Stryker Medical representative for additional information.
page 1–3
GENERAL INFORMATION
This section contains cleaning instructions and a checklist to assist with the routine preventive maintenance
and cleaning of your equipment.
In the text, the words “right” and “left” refer to the right and left sides of a patient lying face up on the bed.
PREVENTIVE MAINTENANCE CONTENTS
Cleaning 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance Checklist 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page 2–1
Cleaning
Hand wash all surfaces of the bed 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. (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 Phe-
nomysan 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.
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.
page 2–2
Preventive Maintenance Checklist
CHECKLIST
All fasteners secure (reference all assembly prints)
Siderails move and latch properly (page 4–2)
Engage brake pedal and push on the stretcher to ensure all casters lock securely (page 3–5)
Steer function working properly
All casters secure and swiveling properly
Body restraints working properly
I.V. pole intact and operating properly (page 6–90 – page 6–95)
Oxygen bottle holder intact and operating properly
Fowler operating properly (pneumatic – page 4–3)
Optional articulating head piece locking and releasing properly (page 4–6) – check immediately if the
head piece is bumped on a door, wall or other obstacle while the stretcher is being moved
Knee Gatch operating properly
Trendelenberg/Reverse Trendelenberg operating properly
No rips or cracks in mattress cover
Arm boards intact and operating properly (page 4–2)
Arm board support levers intact and operating properly (page 6–85)
Ground chain intact
No leaks at hydraulic connections
Hydraulic jacks holding properly (page 3–8)
Hydraulic drop rate set properly (page 3–9)
Hydraulic oil level sufficient (page 3–9)
Lubricate where required, including the brake adjuster assembly and brake cam (page 3–13)
Serial No.
Completed By:_________________________________ Date:_____________
NOTE
Preventative maintenance should be performed at a minimum of annually. A preventative maintenance program should be established for all Stryker Medical equipment. Preventative maintenance may need to be
performed more frequently based on the usage level of the product.
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.
page 2–3
GENERAL INFORMATION
This section contains tool lists and step–by–step procedures to assist with the maintenance and servicing
of the base portion of your equipment.
In the text, the words “right” and “left” refer to the right and left sides of a patient lying face up on the bed.
BASE MAINTENANCE CONTENTS
Caster Assembly Replacement 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Wheel Replacement 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Caster Cover Installation and Removal 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Cam Replacement 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Ring Replacement 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Adjustment 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Side Control Pedal Linkage Adjustment 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Side Control Brake/Steer Gear Replacement 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uni–Pedal Replacement 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Replacement 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Assembly Torque Specification 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Troubleshooting 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Excess Air (Vacuum) from the Hydraulic System 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Hydraulic Fluid Level 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack Descent Rate Adjustment 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Constant Flow Jack Descent Rate Adjustment 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustable Pressure Compensated (P.C.) Valve Replacement 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Jack Valve Replacement 3–11, 3–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Lubrication 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page 3–1
Caster Assembly Replacement
1. Remove the old caster assembly.
2. Install the replacement caster and caster nut. T ighten 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.
page 3–2
1.
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.
3.
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.
2.
Properly Attached
Cover
Top View (Cut–Away)
Top View (Cut–Away)
page 3–3
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 3–5. 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 equivalent)
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 3–3).
4. Remove one of the casters (see page 3–2). 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 3–5. Reinstall the base
hood.
page 3–4
Required Tools:
3/32” Hex Allen Wrench
Pry Bar
Thread ”Locktite”
Base Side Control Pedal Linkage Adjustment
Brake Adjustment
Flat on thread of stud must always be
aligned with the set screw. Turn must
always be full circle only.
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.
page 3–5
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.
page 3–6
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 (Part Number 1210–1–3)
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 to the unit 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.
page 3–7
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
5. Flow Control Valve to Jack Base Machined 16 to 20 Foot Pounds
Hydraulic Troubleshooting
Be sure the pedal linkage has been adjusted properly before beginning service on the jacks (see page 3–5).
PROBLEM/SYMPTOM SOLUTION
Jack will not raise to full height. Add hydraulic fluid (page 3–9). Check for leaks.
Jack will not hold in raised position. Close the needle valve completely. If the jack holds,
replace the release valve (page 3–12).
Jack will not pump up and the jack actuator
rod does not move.
Jack will not pump up but the jack actuator rod
Close the needle valve. If the jack will now pump up,
replace the release valve (page 3–12). If the jack still
will not pump up after closing the needle valve, replace
the poppet valve (page 3–12).
Replace the check valve (page 3–11).
does move when the pump pedal is activated.
Jack will not pump up and the jack actuator
rod may or may not move.
Contact Stryker technical service at 1–800–327–0770 for further assistance.
Remove the excess air (vacuum) in the hydraulic system (see below).
Removing Excess Air (Vacuum) from the Hydraulic System
Procedure:
1. Verify all hydraulic linkages are secure and operating properly (see page 3–5).
2. Using pump pedal, actuate system several times. This will force the air through the system and the jack
should now pump up.
page 3–8
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. Verify 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 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 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.
page 3–9
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 beginning 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 6–19 for part reference).
7. Check for any contaminants in the valve as well as in the jack base.
page 3–10
Hydraulic Jack 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 Check Valve
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 the seal (4).
2. Remove the valve plug (5).
3. Using a stiff wire with a bent, pointed end, remove the valve (1).
4. Install the new valve (1) with the beveled end up (as shown in the illustration).
5. Reinstall the valve plug (5) with the beveled end down toward valve (1) and tighten to 10 foot–pounds
torque.
6. Reinstall the seal (4) and the base plug (3) and tighten to 10 foot–pounds torque.
7. Pump up the jack to the maximum height.
8. Be sure there are no hydraulic leaks before replacing the base hood and the litter.
ITEM PART NO. PART NAME
1 926–20–153 Check Valve
2 715–1–341 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 Compression Spring
10 715–270–100 Valve Assembly*
10 2025–700–26 Valve Assembly**
11 715–100–325 Pump Piston
* Used on jack part number 1231–70–10.
** Used on jack part number 1231–70–210.
(See label on side of jack reservoir for jack
part number).
FILLER PLUG
page 3–11
Hydraulic Jack Valve Replacement (Continued)
Replacement of Release Valve
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 release valve (10).
2. Install the new the release valve (10).
3. Pump up the jack to the maximum height.
4. Be sure there are no hydraulic leaks before replacing the base hood and the litter.
Replacement of Poppet Valve
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 (7) and the seal (8).
2. Remove the compression spring (9).
3. Using small needle nose pliers, remove the poppet valve (2).
4. Install the new poppet valve (2).
5. Reinstall the compression spring (9).
6. Reinstall the seal (8) and the base plug (7) 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.
page 3–12
Base Lubrication
page 3–13
GENERAL INFORMATION
This section contains tool lists and step–by–step procedures to assist with the maintenance and servicing
of the litter portion of your equipment.
In the text, the words “right” and “left” refer to the right and left sides of a patient lying face up on the bed.
LITTER MAINTENANCE CONTENTS
Siderail Latch Adjustment 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Arm Board Counterbalance Adjustment 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pneumatic Fowler Adjustment 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pneumatic Fowler Release Handle Adjustment 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pneumatic Cylinder Replacement 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Articulating Head Piece Adjustment 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
page 4–1
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