Model 1037 Trauma Stretcher Maintenance Manual Rev A July 2010

Table of Contents Symbols and Definitions ... 6 Symbols... 6 Warning/Caution/Note Definition ... 6 Introduction... 7 Product Description ... 7 Intended Use of Product... 7 Specifications... 7 Contact Information ... 8 Serial Number Location... 8 Summary of Safety Precautions... 9 Setup Procedures... 11 Cleaning... 12 Stretcher Cleaning ... 12 Mattress Cleaning... 13 Preventative Maintenance ... 15 Quick Reference Replacement Parts List... 16 Service Information... 17 Caster Assembly Replacement ... 17 Brake Swivel Lock Ring Replacement... 18 Brake Timing Link Replacement, Head End or Foot End... 19 Brake Cam Assembly Replacement... 20 Brake Rod Replacement - Fifth Wheel Only... 21 Brake Rod Replacement - Big Wheel Only... 22 Fifth Wheel Assembly Replacement ... 23 Jack Replacement, Head End - Fifth Wheel Only... 24 Jack Replacement, Head End - Big Wheel Only... 25 Jack Replacement, Foot End - Fifth Wheel Only ... 26 Jack Removal, Foot End - Big Wheel Base with Three-Sided Controls ... 27 Release Pedal (Side) Adjustment... 28 Litter Top Removal... 29 Transfer Board Counterbalance Adjustment... 30 Fold Down Siderail Latch Adjustment... 30 Release Pedal Replacement, Foot End ... 31 Release Pedal Rod Removal, Foot End... 31 Big Wheel Removal (Non Four-Sided Brakes) ... 32 Big Wheel Removal (Four-Sided Brakes)... 32 Big Wheel Dampener Replacement... 33 Pneumatic Fowler Adjustment... 34 Removal of Excess Air from the Hydraulic System... 35 Fifth Wheel Standard Brake Assembly... 36 Fifth Wheel Brake Rod Assembly... 39 Fifth Wheel Drive Link Assembly - 0853-206-135 ... 40 Fifth Wheel Side Control Brake Assembly ... 41 Fifth Wheel Brake Rod/Side Control Assembly... 45 www.stryker.com

1037-009-002 REV A

3

Table of Contents Fifth Wheel Side Control Brake Assembly ... 46 Bumper Color Options - Individual or Set of Four... 47 8” Caster with Full Cover Assembly - 0853-503-020... 48 Retractable Fifth Wheel Assembly... 49 Fifth Wheel Assembly - 1105-006-130 ... 50 Fifth Wheel Dual Sided Hydraulics Assembly... 52 Lowering Pedal Assembly - 1105-004-201 ... 54 Pump Pedal Assembly, Head End - 1105-005-285 ... 55 Constant Descent Jack... 56 Big Wheel Standard Brake Assembly... 60 Big Wheel Cam Bracket Assembly - 1115-006-201... 63 Big Wheel Carriage Assembly ... 65 Big Wheel Dual Sided Hydraulics Assembly... 66 Pump Pedal Assembly, Head End - 1115-005-285... 69 Lowering Pedal Assembly - 1115-004-201 ... 70 Big Wheel Four-Sided Control Base Assembly... 71 Big Wheel Side Control Carriage Assembly ... 74 Big Wheel Side Control Linkage Assembly - 1040-125-010... 76 Base Labeling Assembly, Standard Brakes... 77 Base Labeling Assembly, Four-Sided Brakes ... 78 Base Labeling Assembly - Big Wheel Base ... 79 Litter Assembly... 80 Litter Support Assembly, Head End - 1037-024-003 ... 85 Litter Support Assembly, Foot End - 1037-024-002... 86 Siderail, Left - 1010-026-017... 87 Siderail, Right - 1010-026-019 ... 88 Pneumatic Fowler to Litter Assembly... 89 Pneumatic Fowler Assembly ... 90 Transfer Board Assembly... 91 Transfer Board Assembly, Left - 1037-024-010... 92 Transfer Board Assembly, Right - 1037-024-011... 93 Arm Board Support Assembly - 1010-024-030 ... 94 X-Ray Tray Assembly, Right Side Load - 1037-022-000... 95 X-Ray Tray Assembly, Left Side Load - 1037-021-000... 97 X-Ray Grid Holder Assembly - 1020-027-000... 99 Optional X-Ray Centering Guide - 1020-020-000 ... 100 Optional Push Handles, Head End - 1037-151-000 ... 101 Push Handle Assembly - 1211-351-010... 102 Optional Push Handles, Foot End - 1037-051-000... 103 Push Handle Assembly With I.V., Head End - 1037-151-004... 104 Push Handle Assembly Without I.V., Head End - 1020-151-001 ... 105 Cover Assembly with Pop Up Push Handles, Head End - 1037-151-005... 106

4

1037-009-002 REV A

www.stryker.com

Table of Contents Optional Accessories... 108 C-Spine Cassette Holder Assembly - 1020-070-000... 109 C-Spine Storage Bracket Assembly - 1020-070-019... 110 C-Spine Support Pole Assembly - 1010-070-010... 111 Defibrillator Tray Assembly - 1105-045-200 ... 112 Defibrillator Tray/Foot Extender/Foot Board - 1105-045-400 ... 113 Footboard/Chartholder Assembly - 1105-045-500... 114 Fowler X-Ray Cassette Assembly - 1020-023-000 ... 115 Heel Stirrups - 1020-055-000... 116 I.V. Caddy - 0785-155-000... 117 Removable I.V. Pole - 0390-025-000 ... 118 Tethered I.V. Pole Assembly - 1001-087-018... 119 Two-Stage I.V. Pole Assembly, Head End 1010-081-000 ... 120 Three-Stage I.V. Pole Assembly, Head End 1020-061-000/ ... 121 Three-Stage I.V. Pole Assembly, Foot End 1020-062-000 ... 121 Two-Stage I.V. Pole Assembly, Foot End 1010-080-000... 122 Upright Oxygen Bottle Holder - 1115-130-000... 123 Serving Tray - 1105-045-700 ... 124 Foot Board/Serving Tray Holder - 1105-045-800... 125 Mattresses and Siderail Pads... 126 Warranty... 127 Limited Warranty... 127 To Obtain Parts and Service... 127 Service Contract Coverage... 127 Service Contract Programs... 128 Return Authorization... 128 Damaged Merchandise... 128 International Warranty Clause... 128

www.stryker.com

1037-009-002 REV A

5

Symbols and Definitions SYMBOLS Warning/Caution: Consult accompanying documentation

Safe Working Load indicates the sum of the patient, mattress, and accessory weight

Do not store oxygen bottle

Do not push/pull

Manufacturer

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

WARNING Alerts the reader about a situation which, if not avoided, could result in death or serious injury. It may also describe potential serious adverse reactions and safety hazards.

CAUTION Alerts the reader of a potentially hazardous situation which, if not avoided, may result in minor or moderate injury to the user or patient or damage to the equipment or other property. This includes special care necessary for the safe and effective use of the device and the care necessary to avoid damage to a device that may occur as a result of use or misuse.

NOTE Provides special information to make maintenance easier or important instructions clearer.

Return To Table of Contents 6

1037-009-002 REV A

www.stryker.com

Introduction This manual is designed to assist you with the operation of Stryker Model 1037 Trauma Stretcher. Read this manual thoroughly before using the equipment or beginning maintenance on it. To ensure safe operation of this equipment, it is recommended that methods and procedures be established for educating and training staff on the safe operation of this stretcher.

PRODUCT DESCRIPTION The Stryker Model 1037 Trauma Stretcher is a general purpose patient transport and treatment stretcher.

INTENDED USE OF PRODUCT The Stryker Medical Trauma Stretcher is a non-powered, wheeled device which consists of a platform mounted on a wheeled frame that is designed to support patients in a horizontal position. The device has siderails and has the option available to support the temporary or permanent placement of I.V. poles. A stretcher provides the operator a method of transporting patients within a healthcare facility. Some stretchers may also be used for minor procedures and short-term stay (treatment and recovery).

SPECIFICATIONS Safe Working Load Note: Safe Working Load indicates the sum of the patient, mattress, and accessory weight.

500 lb.

226.8 kg.

Overall Stretcher Length

83”

210.8 cm

Minimum / Maximum Stretcher Height

24.5” / 37.5”

62.2 cm / 95.3 cm

Fowler Angle

0° to 90°

Trendelenburg / Reverse Trendelenburg

+18°/-18° 6” nominal

Minimum Under-Stretcher Clearance

15 cm

1.75” under the hydraulic cylinders 4.5 cm and fifth wheel

Stryker reserves the right to change specifications without notice.

Return To Table of Contents www.stryker.com

1037-009-002 REV A

7

Introduction CONTACT INFORMATION Contact Stryker Customer Service or Technical Support at: (800) 327-0770 or (269) 324-6500. Stryker Medical 3800 E. Centre Avenue Portage, MI 49002 USA Please have the serial number (A) of your Stryker product available when calling Stryker Customer Service or Technical Support. Include the serial number in all written communication.

SERIAL NUMBER LOCATION

A

Return To Table of Contents 8

1037-009-002 REV A

www.stryker.com

Summary of Safety Precautions Carefully read and strictly follow the warnings and cautions listed on this page. Service only by qualified personnel. See the maintenance manual for additional information.

WARNING •

• • • •

• • •

•

• • •

Always apply the brakes when a patient is getting on or off the stretcher. Push on the stretcher to ensure that 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. Patients should be discouraged from sitting directly on the ends of the stretcher. Excessive weight could cause the litter surface to tip up, possibly causing patient injury. Leave the stretcher height in the lowest position when the patient is left unattended. Leaving the stretcher height in a raised position could increase the chance of patient falls and injury. Make sure that the brakes are completely released before attempting to move the unit. Attempting to move the unit with the brakes engaged could result in injury to the user and/or patient. After raising the siderails, pull firmly on the siderail to ensure that it is securely locked into the fully raised position. Siderails are not intended to serve as a patient restraint device to keep patients from exiting the unit. Siderails are intended to keep a patient from inadvertently rolling off the unit. It is the responsibility of the attending medical personnel to determine the degree of restraint necessary to ensure that a patient will remain in place. Failure to utilize the siderails properly could result in patient injury. When lowering the siderail to the collapsed position, keep extremities of patients and staff away from the siderail spindles or injury could occur. During patient transfer, keep patient and operator extremities away from collapsed siderails or injury could occur. When using the transfer board to transfer a patient from one patient support platform (for example, bed, stretcher, gurney, operating table) to another, always lock the brakes on both patient support platforms. Make sure that the transfer board is placed securely on the surface of the patient support platforms. The patient support platforms and surfaces must be at the same height before the patient is transferred. Operation of the pneumatic fowler is a manual procedure. Use caution when raising the fowler while a patient is on the stretcher. Use proper lifting techniques and get additional assistance, if necessary. Failure to use proper lifting techniques could cause injury to the operator. Keep hands/fingers clear of the area around the fowler release handle and the fowler frame when lowering the fowler. Injury could result if care is not taken when lowering the fowler. If the stretcher is equipped with the optional foot end push handles, use caution while the foot extension/defibrillator tray is installed to avoid pinching your fingers. To avoid the risk of injury to the patient or user or damage to the I.V. pole while transporting the stretcher, make sure that the I.V. caddy is securely tightened on the I.V. pole.

CAUTION • • • • •

Do not modify this stretcher. Modifying the unit can cause unpredictable operation resulting in injury to the patient or operator. Modifying the unit will also void its warranty. To avoid damage, remove any equipment that may be in the way before raising or lowering the litter height. Do not raise the unit (hydraulics on base) with a patient lift under the stretcher. Do not engage the steer pedal when the Big Wheel is resting on a threshold or other raised area. The force required to engage the Big Wheel will be higher than normal, possibly causing damage. To avoid injury or damage to the equipment, do not allow the siderail to lower on its own.

Return To Table of Contents www.stryker.com

1037-009-002 REV A

9

Summary of Safety Precautions CAUTION (CONTINUED) • • • • • • • •

• • • • • • • • • • • • •

•

The push handles were designed for use while transporting the stretcher. Avoid using other parts of the stretcher as push/pull devices because damage could occur. When the transfer board is being used to transfer a patient, the support post must be in the stored (down) position. Damage to the support post will occur if it is pushed up against a stretcher, table, etc. The weight capacity of the base hood is 60 lb. Do not sit or stand on the base hood. Injury or damage to the equipment could occur. Do not step on the base hood. Do not use the cutout for the oxygen bottle holder on the base hood for the storage of oxygen bottles or patient belongings. To avoid damage, do not put items weighing more than 30 lb. on the defibrillator tray. Do not use the defibrillator tray as a push/pull device because equipment damage could occur. If the stretcher is equipped with the optional foot end I.V. pole, the I.V. pole must be in the raised position when the foot extension/defibrillator tray is installed. If the I.V. pole is not raised, the foot extension will not function properly and injury could occur. To avoid damage, do not put items weighing more than 30 lb. on the defibrillator tray/foot extender. Do not use the defibrillator tray/foot extender as a push/pull device because equipment damage could occur. Do not use the footboard/chartholder as a push/pull device because equipment damage could occur. Always store the I.V. caddy when not in use to avoid damaging it when the unit is moved. To avoid damage, do not put items weighing more than 30 lb. on the serving tray. Do not use the serving tray as a push/pull device because equipment damage could occur. To avoid damage, the weight of the I.V. bags should not exceed 40 lb. To avoid damage while transporting the stretcher, verify that the I.V. pole is at a low enough height to allow it to safely pass through door openings and under light fixtures. Do not use the I.V. pole as a push/pull device because equipment damage could occur. To avoid damage, the weight of the I.V. bags should not exceed 12 lb. while the weight of any one item attached to each stage of the three-stage permanently attached I.V. pole should not exceed 9.3 lb. To avoid damage, do not put items weighing more than 40 lb. in the upright oxygen bottle holder. Do not use the upright oxygen bottle holder as a push/pull device because equipment damage could occur. Before returning the unit to service after cleaning, ensure that the unit is functioning properly by verifying that all labels are intact, raise/lower the stretcher height, brake/steer pedal locks properly in both positions, latch/unlatch the siderails, raise/lower the fowler and gatch, and check all components for proper lubrication. Some cleaning products are corrosive in nature and may cause damage to the product if used improperly. If the products suggested above are used to clean Stryker patient handling equipment, measures must be taken to ensure that the stretcher is wiped with a damp cloth soaked in clean water and thoroughly dried following cleaning. Failure to properly rinse and dry the stretcher 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.

NOTE • •

Clean the base hood storage area regularly. The bottom of the brake pads should be cleaned regularly to prevent wax or floor remnant buildup.

Return To Table of Contents 10

1037-009-002 REV A

www.stryker.com

Setup Procedures Make sure that the unit is working properly before it is put into service. The following list will ensure that each part of the unit is checked. 1. 2. 3. 4. 5. 6. 7.

Fully depress the brake pedal of the stretcher to set the four wheel brakes and verify that all four casters are locked. Raise and lower the hydraulic lift system. Raise the unit completely and activate the Trendelenburg function. Ensure that the head end lowers to the lowest position. Raise the unit completely and activate the reverse Trendelenburg function. Ensure that the foot end lowers to the lowest position. Activate the fifth wheel to ensure that it is operating properly or activate the Big Wheel to ensure that it is operating properly. Ensure that the siderails raise and lower smoothly and lock securely when fully raised. Raise and lower the fowler (head end).

CAUTION Do not modify this stretcher. Modifying the unit can cause unpredictable operation resulting in injury to the patient or operator. Modifying the unit will also void its warranty.

Return To Table of Contents www.stryker.com

1037-009-002 REV A

11

Cleaning STRETCHER CLEANING These instructions are intended to provide recommended cleaning methods for the Stryker Model 1037 Trauma Stretcher.

RECOMMENDED CLEANING METHOD Note: Follow the cleaning solution manufacturer’s dilution recommendations exactly. • • •

 emove the mattress prior to washing the unit; do not wash the mattress with the stretcher. R Wipe the unit with cleaning solution and water per manufacturer’s recommended dilution. Dry thoroughly. Do not replace the mattress on the stretcher until the unit is completely dry.

CAUTION  efore returning the unit to service after cleaning, ensure that the unit is functioning properly by verifying that all labels B are intact, raise/lower the stretcher height, brake/steer pedal locks properly in both positions, latch/unlatch the siderails, raise/lower the fowler and gatch, and check all components for proper lubrication. DO NOT STEAM CLEAN, PRESSURE WASH, HOSE OFF OR ULTRASONICALLY CLEAN THE STRETCHER. Using these methods of cleaning are not recommended and may void this product’s warranty.

RECOMMENDED CLEANERS Suggested cleaners for stretcher surfaces: Quaternary Cleaners (active ingredient - ammonium chloride). Phenolic Cleaners (active ingredient - o-phenylphenol). Chlorinated Bleach Solution (5.25% - less than 1 part bleach to 100 parts water). Avoid over saturation and ensure the product does not stay wet longer than the chemical manufacturer’s guidelines for proper disinfecting.

CAUTION Some cleaning products are corrosive in nature and may cause damage to the product if used improperly. If the products suggested above are used to clean Stryker patient handling equipment, measures must be taken to ensure that the stretcher is wiped with a damp cloth soaked in clean water and thoroughly dried following cleaning. Failure to properly rinse and dry the stretcher 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.

Return To Table of Contents 12

1037-009-002 REV A

www.stryker.com

Cleaning MATTRESS CLEANING These instructions are intended to provide recommended cleaning methods for stretcher mattresses.

RECOMMENDED CLEANING METHOD • • • • • • •

Hand-wash all surfaces of the mattress with warm water and mild detergent cleaner. Dry thoroughly. Apply disinfectant solution either by spray, solution or pre-impregnated wipes (do not soak mattress). Clean per hospital protocol for mattresses. Wipe up excess disinfectant. Rinse with clean water. Allow surface to dry.

RECOMMENDED DISINFECTANTS IMPORTANT: DILUTE ALL DISINFECTANTS IN ACCORDANCE WITH MANUFACTURER’S DIRECTIONS When used in concentrations recommended by the manufacturer, diluted bleach, diluted phenolic, or diluted quaternary germicidal disinfectants are recommended. Chlorine Bleach, typically 5.25% Sodium Hypochlorite, should be used at a dilution ratio of 1 part bleach to 10 parts water.

RINSE OFF CORROSIVE CLEANERS These products are NOT considered mild detergents. They are corrosive in nature and may cause damage to your stretcher mattress if used improperly. Mattresses must be rinsed with clean water and dried thoroughly after using corrosives such as quaternary, phenolic, or chlorine bleach. Failure to properly rinse and dry the mattress leaves a corrosive residue on the surface, likely causing premature corrosion. Iodophor type disinfectants are not recommended for use because staining may result. The following table lists the recommended cleaner types for each mattress cover material (see definitions below): Vinyl Mattress Cover Polyurethane Mattress Cover Recommended Phenolics Quaternary, Quat/Isopropyl Acceptable Quaternary, Chlorine Bleach (1:10) Chlorine Bleach (1:10) Not Recommended Quat/Isopropyl Phenolics Quaternary Cleaners: identified by ingredients containing the phrase “…yl ammonium chloride” Quat/Isopropyl Cleaners: identified by a quaternary ingredient above plus isopropyl alcohol Phenolic Cleaners: identified by ingredients containing the suffix “-phenol” Chlorine Bleach: known generically as “Sodium Hypochlorite”

Return To Table of Contents www.stryker.com

1037-009-002 REV A

13

Cleaning MATTRESS CLEANING (CONTINUED) SPECIAL INSTRUCTIONS Velcro To clean and disinfect, saturate with disinfectant, rinse with water, and allow it to evaporate. Soils or Stains Use neutral soaps and warm water. Do not use harsh cleansers, solvents or abrasive cleaners. Hard-To-Clean Spots Use standard household/vinyl cleansers and a soft bristle brush on troublesome spots or stains. Pre-soak heavy, dried-on soil. Laundering Laundering is NOT RECOMMENDED. Laundering may substantially decrease the useful life of the mattress. DO NOT STEAM CLEAN, PRESSURE WASH, HOSE OFF OR ULTRASONICALLY CLEAN MATTRESSES. Using these methods of cleaning are not recommended and may void this product’s warranty.

REMOVAL OF IODINE STAINS 1.

2.

Make a solution of 1−2 tablespoons Sodium Thiosulfate in a pint of warm water and use it to wipe the stained area. Clean the stain as soon as possible after it occurs. If stains are not immediately removed, allow solution to soak or stand on the surface before wiping. Rinse surfaces which have been exposed to the solution with clear water before returning mattress to service.

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

Return To Table of Contents 14

1037-009-002 REV A

www.stryker.com

Preventative Maintenance At a minimum, preventative maintenance should be performed 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.

All fasteners secure Siderails move and latch properly Engage brake pedal and push on the stretcher to ensure all casters lock securely Steer function working properly All casters secure and swivel properly Inspect each caster and remove any wax or debris which may have collected on the caster or braking mechanism Body restraints working properly I.V. pole intact and operating properly Oxygen bottle holder intact and operating properly Fowler operating and latching properly Trendelenburg/reverse Trendelenburg operating properly No rips or cracks in mattress cover Transfer boards intact and operating properly Ground chain intact No leaks at hydraulic connections Hydraulic jacks hold properly Hydraulic drop rate set properly Hydraulic oil level sufficient Lubricate where required X-ray tray slide tracks cleaned of dust and debris Accessories and mounting hardware in good condition and working properly

Product Serial Number:

Completed by: ____________________________________________ Date: _____________________

Return To Table of Contents www.stryker.com

1037-009-002 REV A

15

Quick Reference Replacement Parts List The parts and accessories listed on this page are all currently available for purchase. Some of the parts identified on the assembly drawing parts in this manual may not be individually available for purchase. Please call Stryker Customer Service USA at 1-800-327-0770 for availability and pricing.

Part Name

Part Number

Big Wheel Assembly

1115-015-073

Big Wheel Timing Cam and Link Assembly

1040-003-035

Brake Cam and Link Assembly (Fifth Wheel)

0853-003-035

Caster Assembly

0853-503-020

Fifth Wheel Assembly

1105-006-130

Fowler Gas Cylinder

1010-031-078

Hydraulic Jack, Constant

0753-002-101

I.V. Pole, Standard, Removable

0390-025-000

Paint, Touch-Up, Gloss Black, Bottle with Brush

7000-001-322

Paint, Touch-Up, Gloss Black, Spray Can

7000-001-319

Paint, Touch-Up, White, Bottle with Brush

7000-001-147

Paint, Touch-Up, White, Spray Can

7000-001-148

Restraint Strap Package

0785-045-010

Restraint Strap, Ankle

0785-045-020

Restraint Strap, Body

0785-045-015

Restraint Strap, Wrist

0946-044-000

Siderail Pads

1010-052-000

Return To Table of Contents 16

1037-009-002 REV A

www.stryker.com

Service Information CASTER ASSEMBLY REPLACEMENT Tools Required: • • • • • •

1/2” Socket 3/8” Drive Ratchet Needle Nose Pliers Bungee Cords Small Bottle Jack 3/8” Drive Torque Wrench (ft-lb)

Procedure: 1. 2. 3. 4. 5. 6. 7. 8.

Pump the stretcher all the way up. Raise both siderails to the up and latched position. Using bungee cords, support the raised base hood. Put the base brake/steer pedal in the neutral position. Using a 1/2” socket, remove the two flange nuts (one on each side) that secure the timing link to the casters. Using needle nose pliers, remove the rue clip and then the clevis pin from the brake rod activator. Apply the brakes by moving the brake/steer pedal to the brake position. Remove the brake timing link assembly by equally pulling outward on the timing link assembly. Save the brake timing link for reinstallation. 9. Using a small bottle jack, raise the stretcher up until the caster falls out of the frame socket. Discard the caster. 10. Install the new caster assembly by carefully and slowly lowering the jack down until the caster is secured in the base frame, and then remove the jack. Note: Make sure that the arrow located at the top of the caster assembly fork stem points toward the foot end of the unit. If the arrow does not point toward the foot end, damage could occur to the caster assembly. 11. Reverse steps to reinstall. Torque the two flange nuts that secure the timing link assembly to the casters to 80 ± 20 ft-lb. Note: When installing the new brake timing link assembly be sure to reinstall the bushing which may have fallen off during the removal of the old brake timing link assembly. 12. Verify proper operation of the unit before returning it to service.

Return To Table of Contents www.stryker.com

1037-009-002 REV A

17

Service Information BRAKE SWIVEL LOCK RING REPLACEMENT Tools Required: • • • • • • • •

1/2” Socket 5/16” Socket 3/8” Drive Ratchet 1/4” Ratchet Needle Nose Pliers Bungee Cords Small Bottle Jack 3/8” Drive Torque Wrench (ft-lb)

Procedure: 1. 2. 3. 4. 5. 6. 7. 8.

Pump the stretcher all the way up. Raise both siderails to the up and latched position. Using bungee cords, support the raised base hood. Put the base brake/steer pedal in the neutral position. Using a 1/2” socket, remove the two flange nuts (one on each side) that secure the timing link to the casters. Using needle nose pliers, remove the rue clip, and then the clevis pin from the brake rod activator. Apply the brakes by moving the brake/steer pedal to the brake position. Remove the brake timing link assembly by equally pulling outward on the timing link assembly. Save the brake timing link for reinstallation. 9. Using a small bottle jack, raise the stretcher up until the caster falls out of the frame socket. Discard the caster. 10. Using a 5/16” socket, remove the two bolts that secure the brake swivel lock ring to the base frame and remove. Discard the brake swivel lock ring. 11. Using a 5/16” socket, install the new brake swivel lock ring. Note: The brake swivel lock ring has two dowels that mate to the base frame when installing. 12. Install the new caster assembly by carefully and slowly lowering the jack down until the caster is secured in the base frame, and then remove the jack. Note: Make sure that the arrow located at the top of the caster assembly fork stem points toward the foot end of the unit. If the arrow does not point toward the foot end, damage could occur to the caster assembly. 13. Reverse steps to reinstall. Torque the two flange nuts that secure the timing link assembly to the casters to 80 ± 20 ft-lb. Torque the two bolts that secure the brake swivel lock ring to the base frame to 50 ± 4 ft-lb. Note: When installing the new brake timing link assembly be sure to reinstall the bushing which may have fallen off during the removal of the old brake timing link assembly. 14. Verify proper operation of the unit before returning it to service.

Return To Table of Contents 18

1037-009-002 REV A

www.stryker.com

Service Information BRAKE TIMING LINK REPLACEMENT, HEAD END OR FOOT END Tools Required: • • • • •

1/2” Socket 3/8” Drive Ratchet Needle Nose Pliers Bungee Cords 3/8” Drive Torque Wrench (ft-lb)

Procedure: 1. 2. 3. 4. 5. 6. 7. 8. 9.

Pump the stretcher all the way up. Raise both siderails to the up and latched position. Using bungee cords, support the raised base hood. Put the base brake/steer pedal in the neutral position. Using a 1/2” socket, remove the two flange nuts (one on each side) that secure the timing link assembly to the casters. Using needle nose pliers, remove the rue clip and then clevis pin from the brake rod activator. Apply the brakes by moving the brake/steer pedal to the brake position. Remove the brake timing link assembly by equally pulling outward on the timing link assembly. Discard the brake timing link. Reverse steps to reinstall. Torque the two flange nuts that secure the timing link assembly to the casters to 80 ± 20 ft-lb.

Note: When installing the new brake timing link assembly be sure to reinstall the bushing which may have fallen off during the removal of the old brake timing link assembly. 10. Verify proper operation of the unit before returning it to service.

Return To Table of Contents www.stryker.com

1037-009-002 REV A

19

Service Information BRAKE CAM ASSEMBLY REPLACEMENT Tools Required: • •

Needle Nose Pliers Bungee Cords

Procedure: 1. 2. 3. 4. 5. 6. 7. 8. 9.

Pump the stretcher all the way up. Raise both siderails to the up and latched position. Using bungee cords, support the raised base hood. Put the base brake/steer pedal in the neutral position. Using needle nose pliers, remove the rue clip and clevis pin that secure the brake cam assembly to the brake rod. Save all parts for reinstallation. Using needle nose pliers, remove the rue clip and washer from the top bearing pivot support. Save all parts for reinstallation. Using needle nose pliers, remove the rue clip and plastic washer from the bottom support. Save the rue clip for reinstallation. Raise the brake cam link off of the brake rod actuator and slowly pull outward on the brake cam assembly. Discard the brake cam assembly. Reverse steps to reinstall.

Note: When installing the new brake cam assembly, install the bottom slightly first and then push downward and inward to install under the top bearing. 10. Verify proper operation of the unit before returning it to service.

Return To Table of Contents 20

1037-009-002 REV A

www.stryker.com

Service Information BRAKE ROD REPLACEMENT - FIFTH WHEEL ONLY Tools Required: • • • •

Hammer 7/32” #7 Roll Pin Punch Needle Nose Pliers Bungee Cords

Procedure: 1. Pump the stretcher all the way up. 2. Raise both siderails to the up and latched position. 3. Using bungee cords, support the raised base hood. 4. Put the brake/steer pedal into the steer position. 5. Using a hammer and a 7/32” roll pin punch, remove the eight roll pins from pedal to pedal on the brake rod. 6. Using needle nose pliers, remove the rue clip and clevis pin that secure the brake link to the brake rod. 7. Using your hands, grasp the brake rod and remove each brake/steer pedal. Save the pedals for reinstallation. 8. Remove the brake rod from the base. 9. Install the new brake rod and then install the roll pin into the head end timing link arm first. 10. Reverse steps to reinstall. 11. Verify proper operation of the unit before returning it to service.

Return To Table of Contents www.stryker.com

1037-009-002 REV A

21