Cassettes & Accessories • Reference Section
IMS™ Cassettes Troubleshooting Guide Experiencing issues with your IMS™ Cassettes? Review this document to find common problems and how to prevent them from occurring.
Problem Cause
Prevention
Problem Cause
Prevention
Staining | Resin Cassettes Black/ Purple
• Insufficient rinsing after ultrasonic cleaning
• Rinse thoroughly under steady stream of water for 30 seconds. Use distilled water if possible
Spotting
• Amalgam left in carrier • Thoroughly remove amalgam or other compounds from the instrument prior to processing • If carrier is plugged, sterilize separately and unplug while carrier is warm • Contact with ammonia • Use only proper and approved cleaning agents and rinse thoroughly
• Insufficient drying after ultrasonic cleaning
• Rinse with hot water
• Not changing
• Solution should be changed at least once a day. Always follow Instructions for Use. • Follow manufacturer's guidelines for maintenance and cleaning • Use only distilled water for reservoir • Separate stainless and carbon instruments • For carbon steel instruments: Dip in pre-sterilization solution as suggested by sterilizer manufacturer
ultrasonic solution
• Sterilizer has not been cleaned
Green
• Chrome breakdown of instruments
• Inspect instruments and replace those with cracked handles or peeled plating • Change reservoir water once a week • Regularly clean chamber and filters according to manufacturer's instructions • Every 6 months soak resin cassettes (without instruments and not in the ultrasonic) in 2 cups bleach to 1 gallon of water for 5 to 30 minutes • Regularly clean chamber and filters according to manufacturer's instructions • Use demineralized or distilled water for softened water in cleaning stage • Wipe off cement removers prior to placing in an automatic washer
• Corrosion from carbon steel instruments spreads to stainless steel instruments
Rust
Yellow/ Brown
• Sterilizer has not been cleaned
• Normal use
• Abrasion can destroy the chromium/oxide surface
• Lubricate joints and lock area
discoloration
• Sterilizer not clean
• Follow manufacturer's guidelines for maintenance and cleaning • Rinse and dry instruments thoroughly • Use approved cleaning and sterilization solutions only, never use household bleach or stain and tartar remover • Use demineralized or distilled water in final rinse.
Brown/ Blue
• Sterilizer has not been cleaned
• Chemical attack on instruments
Pitting
Turning Matte Gray
• Excessive lime in water
• Cement remover has been in contact with instruments
• Chlorides (water leakage from water softener or additives containing chlorides) • Organic residues (blood, saliva, sweat)
Cassette Issues Broken Hinges
• Use approved cleaning and sterilization solutions only. Never use bleach, tartar or cement remover
• Overloading/
• Instruments should not protrude from cassette • Only light force is needed to close the cassette
improperly placed instruments
• Improperly placed rails
• Do not reposition cassette rails
Wet Packs
• Insufficient drying • before or during sterilization
• Thoroughly dry cassette after cleaning, before wrapping • Do not open autoclave door during dry cycle • Do not overpack sterilizer • Do not stack cassettes on top of each other • Always use sterilizer’s cassette rack
• Improper loading • of cassettes in • sterilizer
B136
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