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Manual Reference
Arjo Maxi Sky 2 Instructions for Use, 001-15698-EN Rev 16, 2024-06. This procedure applies to Maxi Sky 2 configurations only. Verify the exact Maxi Sky model, strap type, spreader-bar attachment, rail system, charging system, safe working load, accessories, and current model-specific instructions before service.
Manufacturer Recommendation / AEM Status
Arjo's Maxi Sky 2 schedule assigns user checks initially, before every use, and every four months or 1,000 cycles; qualified-service checks every year or 2,500 cycles; and strap replacement every two years or 5,000 cycles, whichever comes first. The lift and accessories must be serviced every 12 months as a minimum, and the entire system requires an annual safe-working-load test. Arjo also specifies a thorough strap inspection every four months.
Safety-related maintenance, annual load testing, strap replacement, rail hardware work, and authorized service must be performed by qualified personnel trained in Arjo procedures with the correct tools, Parts List, and Service Manual. A maintenance message is a service prompt, not proof that the inspection has been completed. If a facility changes the interval or activities, manage that change through its approved AEM program, risk assessment, service history, and applicable requirements.
What This PM Procedure Covers
- Before-use lift, strap, sling, spreader-bar, charging, and rail safety checks
- Four-month or 1,000-cycle strap, emergency-system, charging-contact, and rail cleaning
- Annual or 2,500-cycle authorized lift, trolley, rail, attachment, and safe-working-load inspection
- Two-year or 5,000-cycle strap replacement and applicable ECS/Gate cleaning
Required Tools and Equipment
- Current Maxi Sky 2 IFU, Parts List, Service Manual, rail-system instructions, and accessory-specific instructions
- Arjo-approved replacement parts and the correct woven nylon or non-porous replacement strap
- Calibrated torque wrench capable of verifying 20 N·m (15 lbf·ft)
- Approved annual load-test equipment for the complete installation's rated safe working load
- Manufacturer-compatible cleaning/disinfection supplies and required personal protective equipment
- Suitable access equipment and facility controls for safe overhead rail inspection
Step-by-Step PM Procedure
1. Verify Identity and Configuration
Action: Record asset number, exact Maxi Sky model, serial number, manufacture date, strap type, rated safe working load, cycle count, rail type, trolley, spreader bar, scale, charger, ECS/WCS, Gate, X-Y system, exchanger, turntable, receiving module, and PPP options.
Expected outcome: The installed configuration and applicable instructions are positively identified; do not apply this Maxi Sky 2 procedure to another Maxi Sky model without its model-specific documentation.
2. Review History and Control the Work Area
Action: Review faults, maintenance messages, collisions, overloads, charging problems, emergency-system use, strap replacement, rail work, and prior load-test records. Remove the lift from patient use and secure the area below the rail.
Expected outcome: Unresolved risks and due interval work are known, and no patient is attached during service.
3. Clean and Decontaminate
Action: Clean and disinfect the lift, strap, emergency cord, hand control, spreader bar, and accessories using the current IFU and the compatibility table for the exact Basic, standard, or Infection Control configuration. Do not drench electrical components.
Expected outcome: Surfaces are clean, dry, undamaged, and suitable for inspection; the emergency cord remains correctly reset after cleaning.
4. Inspect Housing, Hardware, and Identification
Action: Inspect for external damage, missing parts, broken panels, corrosion, loose hardware, sharp edges, contamination, unauthorized modifications, and unreadable product or safe-working-load labels.
Expected outcome: The lift is complete, secure, cleanable, and correctly identified.
5. Inspect the Strap Before Use
Action: Inspect the visible strap for middle wear, edge fraying, discoloration, coating delamination where applicable, loose threads, damaged stitching, twisting, folding, cuts, or contamination.
Expected outcome: No wear or defect that could reduce strap strength; remove the lift from service for any questionable condition.
6. Complete the Four-Month Strap Inspection
Action: Every four months or 1,000 cycles, completely unwind the strap and inspect its entire accessible length and stitched areas under good lighting. Document strap type, condition, cycle count, and replacement due point.
Expected outcome: The complete strap passes the manufacturer inspection with no wear, discoloration, delamination, or loose threads.
7. Inspect Slings and Patient-Support Accessories
Action: Inspect applicable sling attachments, fabric, stitched areas, straps, loops, clips, and identification using the sling-specific instructions. Confirm compatibility and clean the sling as its tag directs.
Expected outcome: Only compatible, intact, correctly identified patient-support components remain in service.
8. Inspect Spreader Bar and Attachment
Action: Inspect the spreader bar for cracks, deformation, wear, damaged latches/hooks, loose hardware, or sharp edges. Verify the Quick Connect latch or Basic-model clevis pin and split ring is present, secured, and functioning.
Expected outcome: The spreader bar and attachment lock positively with no damage or missing retention component.
9. Inspect Rails, End Stoppers, and Caps
Action: Before use, verify every end stopper and rail cap is present and secure. Inspect visible rails, charging station, joints, brackets, wall posts, and accessories for movement, damage, gaps, corrosion, or obstruction.
Expected outcome: No open rail end, displaced attachment, damaged track, loose component, or fall hazard.
10. Clean Rail and Charging Contacts
Action: Every four months or 1,000 cycles, clean accumulated dust from the inside rail rolling surface and clean the charging-station contacts with a damp cloth as directed. For ECS and compatible Gate configurations, complete the manufacturer-specified contact-strip/component cleaning at the two-year or 5,000-cycle interval.
Expected outcome: Rolling and charging surfaces are clean, dry, undamaged, and unobstructed.
11. Check Battery and Charging Operation
Action: Confirm the lift recognizes its charging station, ECS, or WCS and reaches the expected charging indication. Inspect accessible charging blades, contacts, cables, connectors, and charger components. Evaluate transfer capacity and replace batteries through qualified service when capacity is noticeably reduced.
Expected outcome: The approved charging system operates consistently without damage, overheating, corrosion, or premature loss of capacity.
12. Test Controls and Full Travel
Action: Without a patient, operate the hand control and auxiliary up/down buttons. Test applicable raise/lower, left/right travel, powered DPS, RTC/RTH, and installed functions through a safe range while observing the strap and trolley.
Expected outcome: Controls respond correctly; travel is smooth and controlled without binding, slipping, unexpected motion, abnormal noise, or fault indication.
13. Verify Emergency Stop and Cord
Action: Every four months or 1,000 cycles, inspect the emergency cord for damage and test the emergency-stop mechanism using the current IFU. Reset the system correctly.
Expected outcome: The cord is intact, emergency stop halts powered operation, and normal operation resumes only after proper reset.
14. Verify Emergency Lowering
Action: At the annual qualified-service interval, test the emergency-lowering mechanism exactly as specified in the current service procedure and restore all access covers and controls.
Expected outcome: Emergency lowering operates correctly and the lift is fully restored after the test.
15. Inspect Lift, Trolley, and Drive Components
Action: Annually or every 2,500 cycles, qualified service personnel must inspect frame interlocks and hardware, rail wheels, gears and lubrication, trolley and spreader-bar joints, emergency-brake latches, and all required service-manual items.
Expected outcome: No missing, worn, cracked, rusted, loose, or malfunctioning component; gears and joints meet controlled service requirements.
16. Inspect Rail Installation and Accessories
Action: Annually or every 2,500 cycles, verify rail joints are closed, spring pins are centered, unloaded rail is level, bracket locking devices are not visible, ceiling/wall attachments have not moved, and X-Y, Gate, exchanger, turntable, receiving-module, and PPP accessories are complete and maintained.
Expected outcome: The complete rail installation remains secure, aligned, and correctly configured.
17. Verify End-Stop Hardware and Load Setting
Action: Inspect and tighten track end-stop hardware as required. Where applicable, verify non-bolt end stoppers to 20 N·m (15 lbf·ft) using the controlled procedure. Confirm the lift's adjusted load setting does not exceed the installation's safe working load.
Expected outcome: End stops and hardware pass, and the programmed/rated lift load is no higher than the complete installation rating.
18. Perform the Annual Safe-Working-Load Test
Action: Qualified personnel must load-test the entire lift-and-rail system every 12 months using the manufacturer procedure, correct rated load, approved fixtures, and controlled test area. Never improvise a suspended-load test.
Expected outcome: The complete system passes at its applicable safe working load with results documented.
19. Replace the Strap at Its Life Limit
Action: Have qualified service personnel replace the woven nylon or non-porous strap every two years or 5,000 cycles, whichever comes first, and immediately when damage or unacceptable wear is found. Record the part, date, and cycle count.
Expected outcome: The correct Arjo strap is installed under the controlled procedure and its next replacement limit is traceable.
20. Review Monitor, Final-Test, and Document
Action: Resolve maintenance messages only after all due work is complete. Reinstall covers, clear the rail/work area, recharge the lift, repeat a no-patient functional and safety check, apply the PM label, and record inspection dates, counts, test load, results, parts, corrective actions, and disposition.
Expected outcome: The lift, rail, charger, and accessories are complete and safe to return to service or are clearly removed from service.
Electrical Safety Testing
The Maxi Sky 2 is internally powered Type BF medical electrical equipment, and its charging configuration may include a separate charger, charging station, ECS, or WCS. The published preventive-maintenance checklist does not provide routine leakage-current or protective-earth resistance limits. Do not invent values. Inspect charging components as listed and apply the exact charger/system service documentation and facility electrical-safety policy if additional electrical testing is required.
Pass / Fail Criteria
PM Pass Criteria
- All applicable before-use, four-month/1,000-cycle, annual/2,500-cycle, and two-year/5,000-cycle tasks are complete
- Lift, strap, sling, spreader bar, attachments, controls, emergency systems, battery, charging system, trolley, rails, end stops, accessories, and maintenance monitor pass
- Annual safe-working-load test passes and the lift setting does not exceed the installation rating
- Strap and service-life records are current and traceable
Remove From Service Criteria
- Worn, frayed, discolored, delaminated, cut, twisted, or overdue strap
- Damaged sling, spreader bar, Quick Connect, clevis pin, emergency cord, housing, trolley, wheel, gear, rail, joint, bracket, end stop, or accessory
- Failed emergency stop/lowering, charging, control, travel, annual load test, or unresolved maintenance/fault message
- Lift load setting above the installation rating, overdue qualified service, or any incomplete safety repair
Copy/Paste CMMS Work Order Procedure
Use the exact model-specific manufacturer documentation, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements. Never inspect, test, or service the lift with a patient attached or improvise an overhead load test.