Stryker Prime

Asset Type

Stretcher

Manufacturer

Stryker

Model

Prime

Manual Reference

Stryker Prime Series Stretcher 1105 Fifth Wheel Maintenance Manual, 1105-109-002 Rev B.

Manufacturer Recommendation / AEM Status

The manual lists preventive maintenance at a minimum annual interval and states that PM may need to be performed more frequently based on product usage level.

Manufacturer-Listed Frequencies

Preventive maintenance: At minimum, annually.

More frequent PM: Based on product usage level.

Maintenance after washing: Stretchers must have maintenance performed after a minimum of every fifth washing. The manual references fifth wheel lubrication.

Scale calibration: Check that the optional scale system is calibrated properly and recalibrate if necessary.

Electrical safety checks: Optional electrical equipment includes ground impedance and leakage current checks.

Manufacturer-Listed PM Items

Manufacturer-listed PM items include inspection of fasteners, siderails, casters, brake/steer function, skins, Fowler, optional gatch, Trendelenburg/reverse Trendelenburg, ground chain, hydraulic leaks, hydraulic jack holding, required lubrication, restraints, IV pole, oxygen bottle holder, mattress cover, accessories/mounting hardware, battery-powered functionality, cables, power cord/plug, electrical connections, frame grounds, ground impedance, leakage current, optional scale batteries/display/load cells, optional foot supports, and optional Prime X X-ray related surfaces.

Manufacturer-Listed Electrical Limits for Optional Equipment

Ground impedance: Not more than 200 mΩ.

Current leakage: Not more than 300 µA, per UL 60601-1.

AEM Status

If a facility performs this PM at a different interval or changes the listed activities, that should be handled under the facility’s approved AEM program, risk assessment, maintenance history, and applicable regulatory requirements.

What This PM Procedure Covers

This procedure covers annual stretcher PM inspection, brake checks, caster inspection, steering and fifth wheel checks, siderail inspection, positioning checks, hydraulic system inspection, optional electric lift/litter checks, optional scale system checks, optional electrical safety testing documentation, and copy/paste CMMS work order documentation.

Required Tools and Equipment

• Basic hand tools as needed for inspection or minor adjustment.
• Electrical safety analyzer for optional electric lift/litter or electrical options.
• Scale calibration equipment or facility-approved weight verification method if optional scale system is present.
• Cleaning/debris removal supplies for casters and brake mechanisms.
• Lubricant for manufacturer-listed lubrication points, as supported by the manual’s lubrication reference.

Step-by-Step PM Procedure

1. Remove Stretcher From Patient Use

Action: Remove the stretcher from patient use and place it in a safe work area. Apply brakes before inspection.

Expected outcome: Stretcher is safe to inspect without patient risk.

2. Verify Asset and Configuration

Action: Confirm asset tag, serial number, model, and installed options. Identify whether the unit has optional electric lift/litter, optional scale, optional gatch, optional restraints, IV pole, oxygen holder, foot supports, or Prime X components.

Expected outcome: PM checks match the actual installed configuration.

3. Inspect Frame and Fasteners

Action: Inspect frame, litter structure, fasteners, mounting hardware, accessory brackets, and visible weldments. Tighten or repair only as allowed by facility policy and service procedure.

Expected outcome: Fasteners are secure, mounting hardware is intact, and no structural damage is found.

4. Inspect Siderails

Action: Raise and lower each siderail. Confirm smooth movement and secure latching in the full-up position.

Expected outcome: Siderails move correctly and latch securely.

Remove from service if: A siderail will not latch, releases unexpectedly, binds severely, or has damaged latch hardware.

5. Inspect Casters, Brakes, and Steering

Action: Inspect all casters for secure mounting, smooth swivel, debris, wax buildup, flat spots, damage, or noisy operation. Engage the brake pedal and confirm all casters lock. Test steer function.

Expected outcome: Casters are secure, clean, swivel properly, brakes hold, and steer function works correctly.

Why it matters: The manual specifically lists caster locking, caster swivel, wax/debris removal, and steer function as PM checklist items.

6. Check Fifth Wheel Operation

Action: Engage and disengage the fifth wheel and confirm proper tracking/steering behavior. Lubricate where required.

Expected outcome: Fifth wheel engages, retracts, and operates normally.

7. Check Fowler, Gatch, Trendelenburg, and Reverse Trendelenburg

Action: Raise and lower the Fowler. If equipped, operate the gatch. Operate Trendelenburg and reverse Trendelenburg from all available locations.

Expected outcome: Fowler operates and latches properly, optional gatch works correctly, and Trendelenburg/reverse Trendelenburg functions operate properly from all locations.

8. Check Hydraulic System

Action: Inspect hydraulic connections for leaks. Raise the litter and confirm the hydraulic jacks hold without drifting.

Expected outcome: No hydraulic leaks are present and the stretcher height holds properly.

Remove from service if: Hydraulic drift, visible leakage, or failed lift/lower operation is found.

9. Inspect Mattress, Skins, and Patient Surface

Action: Inspect mattress cover for rips, cracks, fluid intrusion, or damaged seams. Inspect stretcher skins for cracks. For Prime X options, inspect Fowler skin, foot skin, head tray, foot tray, cassette holder, and related surfaces.

Expected outcome: Patient support surfaces are intact and cleanable.

10. Inspect Optional Accessories

Action: Check optional body restraints, IV pole, oxygen bottle holder, foot supports, pump rack, trays, and mounting hardware if installed.

Expected outcome: Accessories are intact, secure, and function normally.

11. Check Optional Electric Lift/Litter Components

Action: If equipped, inspect cables for wear or pinching, inspect power cord and plug, confirm electrical connections are tight, confirm grounds are secure to the frame, and test electric functions from patient siderail controls and foot-end nursing controls where installed.

Expected outcome: No damaged cables or power components are found, controls operate correctly, and all grounds are secure.

12. Check Optional Scale System

Action: If equipped, confirm batteries are sufficiently charged, display housing is intact, load cells are intact, and scale is calibrated properly. Recalibrate if necessary.

Expected outcome: Scale powers on, display is intact, load cells are not damaged, and scale calibration is acceptable.

Electrical Safety Testing if applicable

Electrical safety testing applies to stretchers with optional electrical equipment. The manual lists the optional electric lift/litter and optional scale system as medical electrical equipment requiring EMC precautions.

Use the manufacturer-listed limits when testing optional electrical equipment.

Ground impedance measured in milliohms, expected ≤ 200 mΩ per manual:

Result =

Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different.

Facility/manufacturer limit used =

Result =

Current leakage measured in microamps, expected ≤ 300 µA per manual / UL 60601-1:

Result =

Touch/chassis leakage measured in microamps:

Facility limit used =

Result =

Pass / Fail =

Pass / Fail Criteria

PM Passes When

• Fasteners and structure are secure.
• Siderails latch and release properly.
• Brakes lock all casters.
• Casters are secure and swivel properly.
• Steer and fifth wheel functions operate properly.
• Fowler, optional gatch, Trendelenburg, and reverse Trendelenburg operate properly.
• No hydraulic leaks are present.
• Hydraulic jacks hold properly without drift.
• Mattress, skins, accessories, and mounting hardware are intact.
• Optional electrical equipment passes inspection and electrical safety checks.
• Optional scale system is functional and calibrated properly.

Remove From Service If

• Brakes, steering, siderails, hydraulics, or patient support surfaces are unsafe.
• Electrical cord, plug, grounding, cables, or controls are damaged.
• Ground impedance or leakage current fails the manufacturer-listed limit.
• Hydraulic jacks drift or leak.
• Scale is inaccurate and cannot be corrected.
• Any condition creates patient, staff, transport, fall, electrical, or positioning risk.

Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.