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Summarization of Contents
1. Compressor Maintenance
Check Compressor Pressure Settings
Check cut-in and cut-out pressure for air pressure max. 7 bar.
2. Suction Device Maintenance
Verify Suction Device Performance
Check intake depression and discharge flow of at least 270 SLPM.
3. Treatment Unit Checks
Ensure Basic Treatment Unit Functions
Ensure basic functions of the complete unit before maintenance.
Inspect Main Switch Operation
Check the main switch ON/OFF; ensure the switch lights up green.
Visual Inspection of Connections
Inspect hydropneumatic connections for leaks and sufficient flow.
Check Travel Track Components
Check side cover belt and V-belt for abrasion.
Verify Connecting Base Seating
Check correct seating of the spacer roller in the energy chain.
4. Water and Air Input Systems
Perform Water/Air Control Unit Leak Test
Visual leak test of the water/air control unit, tubing, and valves.
Replace Air Filter and O-rings
Replace the air filter element and O-rings of the filter cover.
Check and Adjust Air Input Pressure
Check air pressure at the manometer and set to 5.5 bar.
Air Input Control Unit Advanced Air
Replace Advanced Air Filter and O-rings
Replace the air filter element and O-rings of the air filter.
Set Advanced Air Pressure
Check and set air pressure to 0.57 MPa with a pressure regulator.
Water Input Control Unit
Replace Water and Biofilters
Replace water filter, biofilter, and O-rings of the water filter.
Check Water Input Pressure
Check water pressure and set to 2.5 to 3 bar.
5. Water Separation Unit (WSU) Maintenance
Perform WSU Visual Leak Test
Conduct a visual leak test on the Water Separation Unit.
Replace Non-Return Valve Components
Replace inlet/outlet of non-return valve on dispensing cylinder.
Clean and Replace Storage Tank Components
Clean glass bowl, disinfect, and replace biofilter in storage tank.
Replace Water Inlet Tube
Replace the water inlet tube for the storage tank.
Refill Chlorine Dioxide Solution
Fill up with DK-DOX 150 chlorine dioxide solution.
Test Chlorine Dioxide Dispensing
Check function of chlorine dioxide suction and dosing.
Check Water Quality
Quick test of water quality via chlorine dioxide concentration.
6. Bottle Care System Maintenance
Replace Bottle Care System Components
Replace 2 litre bottle, suction hose, and seal (with cuspidor).
Replace 1 Litre Bottle Care System
Replace 1 litre bottle, suction hose, and seal (with doctor's device).
7. Doctor's Device Maintenance
Replace Doctor's Device Biofilter
Replace the biofilter in the doctor's device.
Service Turbine Connection
Separate coupling, replace seal/O-rings, check contacts and ducts.
Check Turbine Operating Air Settings
Check settings for operating air pressure (3.2 ± 0.1 bar).
Service Micromotor EM12L
Replace seal/O-rings, check contacts and ducts for motor tightness.
Check Micromotor Cooling Air
Check settings for cooling air (volume 8 SL).
Service Piezo Scaler Handpiece
Separate handpiece, replace O-rings, check contacts and ducts.
Maintain 3-Function Syringe
Clean cannula, check O-rings for leaks, and replace if necessary.
Perform Syringe Visual Leak Test
Conduct a visual leak test on the 3-function syringe.
8. Cuspidor Maintenance
Replace Cuspidor Biofilter
Replace the biofilter in the cuspidor.
Check Glass Filler Drain Cock
Check drain cock for leaks, replace O-rings, remove deposits.
Inspect Cuspidor Bowl Drain
Check cuspidor bowl drain for leaks, replace O-seal, clean funnel.
Check and Replace Cuspidor Bowl Sieve
Check drain sieve (gold catcher) and replace.
Test Spittoon Valve 3
Perform visual leak test, check air supply, clean filter.
Service Spittoon Valve 3
Clean float monitor, clean/replace seal on float sensor, check filter.
Inspect Dürr Rinsing Unit II
Perform visual leak test, check fine filter, monitor dirt.
Check Amalgam Separator CAS1
Perform visual leak test, check function and suction power.
Service Amalgam Separator CAS1
Clean suction unit, clean/replace protective sieves, clean sieve.
Replace Amalgam Separator Bellows
Replace rubber grommets on connections.
Service Amalgam Separator CAS1 (5yr)
Replace centrifuge drum/seal, O-rings, rubber grommets, float.
9. Suction System Maintenance
Check and Clean Suction Filter
Check suction filter for soiling and proper drain; clean if necessary.
Check Suction Filter Sealing Cap
Check sealing cap of suction filter drawer and replace O-ring.
Inspect Suction Filter Sieve Drawer
Check filter sieve drawer for defects and replace if necessary.
Replace Suction Hoses O-rings
Pull off suction hoses and replace O-rings.
Inspect Suction Hoses
Check suction hoses for defects and replace if necessary.
Service Suction Shut-off Valve
Perform leak test, clean and replace valve membrane.
Perform Suction Visual Leak Test
Conduct a visual leak test on the suction system.
10. Operating Lamp Maintenance
Check LED Lamp Movement and Adjust
Check movement, adjust braking system if necessary.
Verify LED Lamp Handle Security
Check if the LED lamp handles are mechanically secured.
11. Tray Maintenance
Adjust Tray Arm Movements
Check arm movements and carry out vertical weight adjustment (max. 2 kg).
Check Tray Rotation and Height
Check rotary movement and height adjustment of the tray.
Adjust Tray Swivelling Range
Check swivelling range and mount limit stop if necessary.
12. Treatment Chair Maintenance
Inspect Seat Upholstery Fasteners
Check correct position of seat upholstery fasteners.
Check Chair Casing and Rubber Profile
Check stainless-steel casing and rubber profile; clean or replace.
Tighten Chair Motor Kinematics
Check spindle of motors and retaining bolts for tightness.
Inspect Backrest Pull-out Panel
Check backrest pull-out panel position, clean foreign objects.
13. Post-Maintenance Checks
Verify Media Duct Functionality
Check function and tightness of media ducts (water, air, wastewater).
14. Safety Inspection
Perform Periodic Safety Check
Conduct a safety inspection as required by IEC 62353.
15. Maintenance Log Finalization
Handover Unit with Documentation
Hand over unit with completed maintenance log and safety inspection printout.
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