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Prv. Maintenance - Harvey - Hydroclave

 

Operator Maintenance

Hot Surface

Burn Hazard: Be sure sterilizer is cool before cleaning door gasket and mating surface.

Hot Surface

Burn Hazard: Be sure sterilizer is cool before cleaning chamber surfaces and components.

Caution

Failure to keep the interior of the stainless steel chamber free from mineral deposits or other debris can cause serious deterioration and premature failure of the chamber.

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Caution

Never use a wire brush, steel wool, abrasive cleaners or cleaning agents containing chloride. These materials will damage the metal surfaces.

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Daily

Cleaning Door Gasket

Wipe the door gasket and mating surfaces daily with a clean damp cloth. Do not use abrasive cleaners on the gasket or mating surface.

Periodically inspect the gasket for cracks or damage. If replacement is necessary, refer to Door Gasket Replacement.

Weekly

Cleaning Chamber, Trays and Rack

At least once a week, remove the trays and rack from the chamber, and thoroughly clean the inside of the chamber (especially the bottom).

Clean the chamber, trays and rack with Harvey brand chamber cleaner. Harvey Chamber Cleaner works best in a dry chamber at room temperature.

 

 

Figure 21 Door Gasket

Operator Maintenance

Caution

Do not use steam to disinfect or clean the sterilizer cabinet. Extreme high temperatures could cause plastic parts to become distorted.

Caution

Do not use abrasive cleansers.

Hot Surface

Burn Hazard: Be sure sterilizer is cool before cleaning reservoir, The water in the reservoir could be HOT if sterilizer was in use just prior to cleaning reservoir.

Release Tab,

Click In To Drain,

Drain

/^i 'V \ Port

Drain ' Fitting

Figure 23 Draining Reservoir

Push To Release

Warning

Water May Be Hot

Note

Sterilizers equipped with an optional non-recirculating system may require less frequent reservoir cleaning.

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Wipe all residue from the surfaces with a dampened, lint-free cloth.

Cleaning and Disinfecting Exterior Surfaces

The exterior surfaces may be cleaned and disinfected with agents typically found in dental and medical offices. Wipe the surface clean with mild detergent and disinfect in accordance with the instructions on the disinfectant agent container.

Every 25 Cycles

Cleaning Reservoir

Clean Reservoir With Disinfectant

Rinse Thoroughly Before Filling With Distilled Water

Figure 24

Cleaning Reservoir

Draining Reservoir

A drain fitting and plastic tubing are provided to drain the reservoir. 1. Insert the open end of the plastic tubing into a container.

Hot Surface

Burn Hazard: The water may be HOT if a cycle has been run recently. Burns could occur if hot water comes in contact with skin.

Note

Reservoir cleaning is not required as often on units with non-recirculating feature.

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2. Insert the drain fitting on the other end of the plastic tubing into the drain port. As soon as the drain fitting locks into place, water will begin to exit the drain.

3. When the water flow stops, press the tab on the drain port to release the drain hose and fitting.

4. Store the drain tube and fitting.

5. Remove the reservoir lid and wipe the inside of reservoir with a clean damp cloth and mild disinfectant. Do not use abrasive cleaners. Wipe the reservoir clean of any disinfectant residue.

6. Remove and clean the reservoir filter.

7. Replace the reservoir lid and refill the reservoir to the FILL mark in the fill funnel with distilled or deionized water.

Cleaning Reservoir Filter

1. Unscrew the reservoir filter from its fitting and rinse thoroughly with clean water.

2. Scrub the outside of the filter with a stiff-bristled brush (toothbrush) or clean in an ultrasonic cleaner.

If the above cleaning method does not effectively clean the filter, replace it.

Operator Maintenance

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Hot Surface Burn Hazard: Be sure sterilizer is cool before removing chamber filter screen.

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Caution

Operating the sterilizer without the filter screen in place will damage the unit.

1. Pull the filter screen assembly out of the water fill port inside the chamber.

2. Clean any deposits from the screen using a small stiff-bristled brush (toothbrush) or ultrasonic cleaner.

3. When clean, push the open end of the filter screen into the water fill port in the back of the chamber.

Cleaning Chamber Filter Screen

Collection Bottle

Note

The fill port is the bottom hole in the back of the chamber. The top hole is for the temperature probe and should not be obstructed.

Empty Contents Down The Drain

 

Note

It is important to periodically check the water in the collection bottle. Failure to empty the bottle when full will result in water overflowing onto surrounding surfaces.

Note

The gasket is adhered to the door plate and must be pulled loose.

Hot Surface

Burn Hazard: Do not empty the collection bottle when the sterilizer is in operation.

When Required

Emptying Non-Recirculating Collection Bottle

Empty the collection bottle when the water in the bottle reaches the FULL mark.

Slide the bottle away from the cooling tank to remove.

Pour the contents down the drain.

Note

Allow about an hour for the silicone sealant to set, then run a no-load cycle to seat gasket.

Cleaning Printer Recess (MC10)

The MC10 printer may be removed to allow cleaning of the recessed area. See the "Printer" section for removal procedure. Use a mild disinfectant to clean the recess.

Replacing Door Gasket

1. Open the sterilizer door and remove the hex nut in the center of the gasket retainer and remove the gasket retainer and gasket.

2. Clean surface of the door plate, new gasket and gasket retainer of any dirt, adhesives or deposits.

3. Apply a generous amount of silicone multipurpose sealant (available in most hardware stores) in a 2" diameter area around the center stud of the door plate.

Operator Maintenance

Warning

Burn Hazard: Steam blow-off will be discharged when the ring on the relief valve is pulled. To prevent possible burns from steam discharge, keep away from the valve. Use pliers to pull the valve ring—do not pull ring with fingers. Wear protective gloves.

Note

If traces of steam continue to escape through the valve, the valve has not re-seated properly. Open and close the valve quickly (several times if necessary) by pulling the ring and letting it snap closed.

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4. Insert the retainer inside the gasket (outer lip of retainer against gasket) as shown.

5. Slide the gasket and retainer assembly onto the center stud of the door plate and secure it finger tight (firm). Do not use wrench.

Every 6 Months

The pressure relief (safety) valve, located on the back of the cabinet, releases excess pressure (over 45 psi) from the chamber.

To check the valve for proper operation:

1. Run an UNWRAPPED INSTRUMENTS cycle with no load in the chamber.

2. When the pressure reaches 30 psi (206 kPa), pull the ring on the pressure relief valve for about 3 seconds. Do not hold the valve open. Steam should freely discharge from the valve outlet.

3. If valve malfunctions, the valve must be replaced. Call for authorized service.

4. Cancel cycle after checking valve to prevent overheating.

Hot Surface

Burn Hazard: Do not clean the tank when the sterilizer is in operation. Allow the Non-recirculating Cooling Tank to cool to room temperature before cleaning the tank.

Using the optional overflow tube (supplied) push the connector fitting into the drain connection at the bottom of the tank to empty it.

Remove the drain tube when the tank is empty, and rinse the tank with a solution of household bleach (3/4 cup) and distilled or deionized water (1 gal.). Drain solution and rinse with distilled or deionized water before refilling.

Refill the tank with clean distilled or low quality deionized water (minimum 0.5 megohm/cm, maximum 1.5 megohm/cm) to put the system back in service.

Cleaning Non-Recirculating Water

Cooling Tank

The non-recirculating water cooling tank should be drained and rinsed out every six months. Do not clean the tank when the sterilizer is in operation.

Warning

Electrical shock Hazard: Do not remove access covers. This equipment should only be serviced by qualified personnel.

 

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