ASI 1044 Operation manual

OPERATION and SERVICE MANUAL
Classic Assistant’s Cart
Dental Operative Unit - Models 1044, 1045, 2044, 2045
PN: 65-1044 | Rev. A
This Operation and Service Manual includes
sections for optional components that may or
may not be included in your system.
Your system may contain built-in accessory
instruments from other manufacturers. Please
refer to the original manufacturer’s instructions
for operation and maintenance of those
instruments.
advanced dental SyStemS®& advanced endodontic SyStemS®
8811 American Way | Suite 130 | Englewood, CO 80112 | www.asimedical.net
Main: [phone] | Toll Free: [phone] | Fax: [phone] (Service Dept.)

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1.0 PRODUCT DESCRIPTION, INSTALLATION, AND SAFETY PRECAUTIONS ........ 3
1.1 Safety Precautions and Warnings............................................................................................... 3
1.2 Product Descriptions, Function, Intended Use and Theory of Operation ........................................4
1.3 Dimensional Specifications, Capacities and Technical Data ......................................................... 6
1.4 Operating Environment and Classification of Equipment.............................................................. 7
1.5 Unpacking and Setup............................................................................................................... 8
1.6 Electrical Installation ................................................................................................................ 8
1.7 Compressed Air....................................................................................................................... 8
1.8 Water Supply........................................................................................................................... 8
1.9 Optional Suction Connection and Piping Recommendation ......................................................... 9
1.10 Pipe Junctions- Housing and Connections.................................................................................. 9
2.0 COMPONENT OPERATING INSTRUCTIONS.................................................. 11
2.1 Clean Closed Water System.................................................................................................... 11
2.2 Air/Water Syringe .................................................................................................................. 11
2.3 Handpiece (if so equipped)..................................................................................................... 12
2.4 Optional Fiber Optics (if so equipped)..................................................................................... 12
3.0 MAINTENANCE ............................................................................................ 14
3.1 Equipment Care and Inspection .............................................................................................. 14
3.2 Solid Trap ............................................................................................................................. 14
3.3 Cleaning, Disinfection and Sterilization .................................................................................... 14
3.4 Preventative Maintenance ....................................................................................................... 15
4.0 LIMITED WARRANTY REV 0907 ................................................................... 16
4.1 Specific Warranty Modifications .............................................................................................. 16
4.2 Replacement Parts Limited Warranty REV 0806 ........................................................................ 16
5.0 TROUBLESHOOTING.................................................................................... 17
5.1 Basic Troubleshooting Guide .................................................................................................. 17
5.2 Troubleshooting the Delivery Unit............................................................................................ 17
5.3 Troubleshooting the Closed Water System ................................................................................ 17
5.4 Troubleshooting the Air Water Syringe ..................................................................................... 17
5.5 Troubleshooting the Handpieces ............................................................................................. 18
5.6 Troubleshooting the Fiber Optic System ................................................................................... 18
6.0 SERVICE........................................................................................................ 19
6.1 Repair Service and Replacement Parts ..................................................................................... 19
6.2 Basic Service and Access....................................................................................................... 19
6.3 Delivery System ..................................................................................................................... 19
6.4 Fiber Optics and Instruments .................................................................................................. 20

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1.0 PRoduct deScRiPtion, inStallation, & SaFety
PRecautionS
1.1 Safety Precautions and Warnings
In addition to observing the normal precautions associated with standard dental practices and procedures, the
following precautions should be strictly noted and observed during the set-up, operation and maintenance of this
system.
Warning- Compressed Air
The compressed air system that operates this unit is under pressure. Compressed air can propel dust or loose particles
and can cause bodily injury or damage. Always turn the system off and bleed off air pressure before attaching or removing air
lines or accessories or servicing this unit. All air lines should be periodically inspected and replaced if worn or damaged.
If an outside compressed air supply is used to power this unit, the air supply must be regulated to 80 psi or below. Excessive
air pressure could cause certain components to rupture.
Warning- Electrical Voltage
This system is powered by high voltage electricity. Like other electrically powered devices, if not used properly it
can cause electrical shock. Always plug the power cord into an electrical outlet with adequate fuse protection and proper
grounding. In the event of a short circuit, grounding reduces the risk of shock by providing an escape wire for the electric
current. Improper grounding of the unit can result in risk of electric shock. Always unplug the unit before doing any service or
repair to the unit.
Warning – Presence of Heavy Metals/Amalgam
This cart may be equipped with optional suction instruments. As part of dental procedures, particles of amalgam may
be suctioned into the dental suction handpieces and collected within the system and trap filter.
CAUTION – Federal law restricts this device to sale by or on the order of a dentist or physician.
CAUTION – Check the correct operating voltage on the rating plate and ensure that the product is correctly
configured for the voltage before plugging in and energizing.
CAUTION – Workplace safety protocols to safeguard against cross contamination of infectious disease should always
observed. When emptying the contents of the suction waste container, safe precautions and practices including the
wearing of face mask, eye protection and gloves are to be followed.
CAUTION – The Product should only be operated by qualified personnel only. The operator bears responsibility for
the correct settings and proper use of the system. ASI Medical, Inc. (ASI) cannot be held liable for any malfunction of
this product, or performance failure and/or its designed or desired utility, nor can ASI be held liable for injuries to persons or
animals, in any case when the device is misused or not operated, applied or maintained in strict accordance with user/owner
instructions set out in the operation manual. In the event of any doubt or question, the user is to contact ASI for clarification or
assistance.
CAUTION – Responsibility for the use of accessories, parts or assemblies from other manufacturers rest solely with the
user.

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1.2 indicationS FoR uSe, PRoduct deScRiPtion, & theoRy oF oPeRation
Indications for Use:
The ASI Classic Assistant Series (Models 1044, 1045, 2044 & 2045) is a dental treatment unit. It is designed to provide air,
water, vacuum and electricity to operate various dental handpieces, accessories and attachments and to serve as a base for
other dental devices and accessories.
The device is intended for use to provide general dental restorative care and hygiene procedures in both traditional dental
office settings and/or mobile applications by or under the supervision of a licensed dentist or a hygienist if permitted by
applicable law.
Product Description
The Dental System product is a cart-based operative dental treatment unit requiring connection to an AC electrical power
supply, suction, and compressed air supply for operation. Configure for right, left or ambidextrous users. The product is
constructed of aluminum chassis with powder coat paint finish, high grade dual wheel type casters, composite work surface
top and a one liter closed water supply bottle. The product is hard wired with the appropriate type mains plug provided for the
electrical specification Model as listed. Includes rear and side-mounted rail system for mounting of accessory brackets and
storage bins.
Model 1044
This model is set up with dual sets of assistant’s instruments to provide for
ambidextrous use. Each side includes one air/water syringe, high volume and saliva
ejector suction instruments. The bank of drawers is mounted in the center to provide
ease of access for either right or left handed use. (Fig 1.2-A)
Model 1045
This model can be configured with the bank of drawers on the right or left side of the
cart for the operator’s preference. The model includes an air water syringe, high
volume evacuator and saliva ejector mounted on the side bar rail or optional swivel
bar. (Fig. 1.2-B)
Model 2044
Includes the same features of the Model 1044 with the addition of two sets of air
driven handpiece connections with internal dual position control block and foot control
mounted on each side to provide for ambidextrous right or left handed use.
Model 2045
Includes the same features of the Model 1044 with the addition of air driven
handpiece connections with internal dual position control block and foot control
mounted on the side rail.
Models 2044 and 2045 not pictured.
Photos may be shown with optional instruments, accessories, mounts and computer equipment not supplied by ASI.
Figure 1.2-B
1045 Right-Hand Configuration
Figure 1.2-C
Back
Figure 1.2-A
1044 Ambidextrous

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Theory of Operation
The Advanced Delivery System is a pneumatically controlled system that uses standard compressed air for operation of dental
tools and accessories and for pressurizing a closed water supply. The system uses air pressure from a foot control to operate
air driven tools.
Closed Water System
The Closed water system uses a single one liter plastic bottle designed for holding pressure. The bottle can be filled with clean
tap or distilled water for the source of water supply to the dental drills and air/water syringe. The system works by supplying
compressed air regulated to 35 psi which pressurizes the water within the bottle and forces it up through a plastic pick up
tubing in the bottle.

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Quick Start Up List
The operator is expected to fully read and understand all aspects of the operation manual for operation of this dental system.
The following is a brief condensed highlight of steps to use the system.
Verify Mechanical Integrity and Safe Use – After unpacking the unit, look for any damage that could affect safe and
proper operation. Ensure there are no missing parts or accessories. Carefully inspect components for tightness and the
absence of cracks, excessive wear or frayed electrical cords. If there is any adverse damage or the lack of mechanical integrity
that would prevent the safe use or operation of the system, it should not be used until repair or replacements correcting the
defects are made.
Verify Handpiece Placements – Ensure all handpieces are placed into their correct holders and that the corresponding
tubing is correctly situated. This system uses auto holders that activate the instrument once it is removed. If any instruments
are incorrectly placed into holders, the selected instrument by the operator will fail to work. Quick Check – Verify all tubings hanging straight
down are not crossed and are placed in sequential order from left to right on the holder bar. This will ensure they are placed correctly.
Verify Holder Switches are Active – The auto handpiece holders feature a lock out switch levers which can be used to
disable function of that instrument if desired by the operator. Ensure all these levers are pointing straight down towards the
floor to ensure all holders are set to active. Otherwise an instrument may fail to operate when removed from the holder.
Verify Water System – Check and or fill water bottles appropriately and ensure the air pressure switch is turned on and that
air pressure in the gauge reads approximately 30-35 psi.
Verify Handpiece Operation – Handpiece instruments can be picked up and operated briefly by pressing the foot control.
Verify fiber optic illumination systems light and operation of other instruments. Water can also be sprayed from instruments to
ensure it is working correctly.
1.3 Dimensional Specifications, Capacities and Technical Data
Technical Specifications
Construction: High grade aluminum sheet metal
Finish: Baked-on powder coat
Dimensions: 36” (91.44 cm) W
22.5” (57.15 cm) D
33.75” (85.725 cm) H
Water System
Reservoir Capacity: 1.0 liter bottle
Operating Pressure: 35 psi (2.5 bar)
Aseptic, non-retracting water system.
Electrical System
Mains Power 115 Volts / 60 Hz or 220 Volts / 50 Hz

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1.4 Operating Environment and Classification of Equipment
Classification of Equipment (EN-60601-1)
Type/Mode Classification
Types of shock protection Class I Equipment: Chair, wall, and cart delivery systems
Degree of shock protection TYPE B and/or TYPE BF APPLIED PART depending on order configuration
Degree of protection against water
ingress
ORDINARY EQUIPMENT
Mode of operation Continuous
Environmental Specifications
Temperature/Humidity Specification
Storage/Transportation Temperature: -40˚C to 70˚C (-40˚F to 158˚F) - Relative humidity 80%
Operating Temperature: 10˚C to 40˚C (40˚F to 104˚F) - Relative humidity 80%
Indoor Use: Altitude up to 2,000M (6,563 ft.), installation category II, pollution degree 2. (UL
61010A-1 and CAN/CSA C22.2, No. 1010.1-92 only)
Identification of Symbols
Symbol Description
Conforms to UL STD 60601-1; Certified to CSA STD C22.2 NO. 601.1
Recognized by Underwriters Laboratories Inc. with respect to electric shock, fire, and mechanical hazards only in
accordance with UL 61010-1 (2601-1) and under mutual recognition agreement with CAN/CSA C22.2, No.601-1.
Protective earth (ground).
Functional earth (ground).
Attention, consult accompanying documents. No user serviceable parts. Attention, line voltage. Only licensed
electrician should remove cover.
Marking on the outside of Equipment or Equipment parts that include RF transmitters or that apply RF
electromagnetic energy for diagnosis or treatment.
Manufacture.
Consult user information.
!
4004895

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1.5 Unpacking and Setup
Carefully remove all packaging material from around and underneath the unit and remove the accessory box, which may
contain additional items required for installation. Inspect the unit for any obvious signs of shipping damage. If any damage is
discovered, immediately contact our Customer Service Department at [phone] or [phone].
Roll the unit to its location on a level surface. Place the handpiece tubings, air/water syringe, and optional instruments (if so
equipped) into their respective holders. Position the foot control and tubing on the floor toward the front of the unit.
Locate the clean water system on the side of the system. Fill the bottle with clean water or other approved solutions. Please
refer to Closed Water System for more information.
The cart then needs to be connected to a central air supply, appropriate electrical supply and optional vacuum and water
supply. Connection of umbilical lines from the cart to an appropriate junction box are the responsibility of the user and should
only be performed by knowledgeable individuals. The tubing is color coded and the wiring is numerically indicated and color
coded to assist with connection. Please see Pipe Junctions - Housings and Concealment for information on the umbilical
junction box connections. If the cart is connected to a plumbed water supply, the water pressure must be regulated to 35 psi
or less.
1.6 Electrical Installation
The system is equipped with a high grade safety rated power cord and plug. By design, the plug is to be placed into a
standard 115 volt 60 Hz outlet. Generally, contractors will provide a duplex or quadplex box that can be floor or wall
mounted. For systems shipped outside of North America with 230 volt 50 Hz service, you will need to supply the correct plug
per your country’s electrical code.
IMPORTANT REQUIREMENT: Due to the sensitive nature of the electrical components installed in the system, the electrical
supply should be made to a dedicated AC circuit with an isolated ground to provide line noise rejection and computer-grade
electrical current.
1.7 Compressed Air
The system is provided with a standard dental air line for supplying compressed air
to the system.
The air line is 1/4” outside diameter (O.D.) and has a 1/8” inside diameter (I.D.).
The system also includes a combination master air supply assembly with regulator
and internal air filter, and a standard angle stop with a manual shut-off valve. The
angle stop has a 5/8” compression fitting inlet to connect onto 1/2” copper pipe
which must be installed by a licensed plumber. The outlet of the angle stop has a
3/8” compression fitting to accept the connector from the master air supply. Air
supplied to the system should be oil-free and regulated to a standard dental unit
pressure of 75 to 80 psi. The 1/4” air line is connected directly to the master air
supply assembly.
1.8 Water Supply
All systems include a Closed Water System standard. There is no need to connect to municipal water lines. To optimize
infection control, connecting to municipal water is not recommended. If this option is still desired, connection to city water can
be provided by requesting a selector switch (Model 9776) to connect between city water and bottled water.

Figure 1.7-A

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1.9 Optional Suction Connections and Piping Recommendations
ASI supplies suction line tubing made from a special grade of material that is inert to common
caustic irrigants and disinfectants used in dentistry. The suction tubing has a 5/8” inside
diameter (I.D.). Included with suction packages are PVC adapters to connect the 5/8” tubing to
either 1/2” or 3/4” PVC pipe (see Figure 1.9). If using 1/2” copper pipe for suction, the tubing
can simply be slipped over the pipe and clamped into place.
RECOMMENDATION: PVC pipe is recommended for suction plumbing lines and NOT copper,
as the copper can corrode from some of the caustic irrigating and disinfectant solutions used
in dentistry, such as sodium hypochlorite. Check your local building codes to see which piping
materials may be used for suction lines.
1.10 Pipe Junctions -Housings and Concealment
It is recommended to cover the area where the pipe stubs and
connections are made to prevent them from being bumped into and
to conceal them within the operatory. If a computer or monitor will be
attached to the delivery system, it is advisable to have network cables
run through the same area as the plumbing to manage all the various
tubing, wires and cables. An optional junction box housing is available
from ASI (see figures 1.10A an 1.10B).
This allows the plumbing and electrical to run within the wall between
two studs. A decorative trim panel is then placed over the wall with
cut-outs for the umbilical lines. The location in the wall should be
approximately 12” to 18” off the floor and should be near where the cart will be placed.
Figure 1.9
Figure 1.10 B
Figure 1.10 A

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Umbilical Tubing Identification
Color S ize*/
Description
Purpose
Electrical
Black Power Cord (3 Wire) SJTOW 16 ga. Brown- Line, Blue - Neutral, Yellow/Green - Ground
Air
Yellow 1/4” OD Regulated (80 psi max) air supply to delivery unit
Black 1/4” OD Drive Air from Foot Control to Control Block
Grey 1/8” OD Air Signal Line from Wet/Dry Foot Control to Water Relay
Water
Blue 1/8” OD From Water Bottles to Delivery System
Optional:
Yellow 1/8” OD Air supply To Master On/Off switch on the delivery unit from
unregulated port on air master shut-off valve
Red 1/8” OD Air Signal From Master On/Off switch in delivery unit
Clear/Wire 5/8” ID Suction line from Plumbing to Solids Trap
Beige 1/4” OD To connect Micro Evacuation
Outer Umbilical Tubing
Beige/Grey 1.0” ID,1.25” OD Standard Cart Umbilical
Beige/Grey 1.25” ID, 1.625” OD Cart Umbilical with Suction Hose or computer cables

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2.0 comPonent oPeRatinG inStRuctionS
2.1 Clean Closed Water System
The Closed Water System features an easy-to-fill, pressurized water bottle that enable you to provide clean water and control
the quality of water to your handpieces and air/water syringe. The water bottle is made of non-porous plastic. It is virtually
unbreakable, and it does not impart an after-taste to the water.
2.1.1 How It Works
Air, regulated to approximately 35 psi, is supplied to the water bottles through tubing attached to the bottle caps. The air
pressure in the bottle forces clean water from the water bottle into the water pick-up tube and out to the handpiece control
blocks, syringe, and auxiliary quick connects. The water system supplying water to the oral cavity is now a “closed system,”
allowing you to control water quality and water system asepsis.
2.1.2 Filling the Bottles
Locate the Closed Water System on the side of the system under the work top. Locate the toggle switch for supplying air
pressure to the bottles. Flip the switch to the OFF position to turn off the air supply to the bottles.
Unscrew the bottles and clean as appropriate. Fill the bottles with clean or distilled water to a level just below the screw
threaded portion. Re-attach the bottles and hand tighten only.
2.1.3 Operating the Closed Water System
Turn the air pressure toggle switch to the ON position. The system will now provide solution to the delivery unit and
corresponding handpieces.
2.1.4 Disinfecting the Water System
Refer to Cleaning and Disinfection Section of the Manual for disinfection of the clean water system
2.1.5 Purging Water From the System
Running compressed air through the water lines is an easy and effective way to remove water from the lines and prevent
stagnant water from residing in the lines during temporary or long term storage of the system. To purge the water, remove the
bottles and completely empty them of their liquid contents. Then replace the bottles and turn on the air pressure supply to the
bottles. Run the handpiece connections and air water syringe until there is no more water particles exiting them. The lines
will now be sufficiently dry for storage.
2.2 Air/Water Syringe
Check the flow of air, water and spray from the syringe. Press the right button for water stream. Press the left button for air.
Press both simultaneously for spray. To adjust the flow of air, turn the syringe air adjustment knob clockwise to increase,
counter-clockwise to decrease. To adjust the flow of water, turn the syringe water adjustment knob until the desired level of
flow is achieved.
2.2.1 Tip Removal and Replacement
The air/water syringe is a press ring type that is capable of accommodating metal tips or disposable tips supplied by others.
To remove the syringe tip, press down on the outside collar. When you feel a soft click, the tip may be pulled straight out.
Hold the collar down and insert the new tip. Be sure to press it all the way in, then release the collar. Test the installation by
giving a firm pull on the tip to assure that it is inserted all the way, and that the locking mechanism is engaged.

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2.3 Handpieces (if so equipped)
Refer to the handpiece manufacturer’s instructions for the proper connection, use and
maintenance of the handpiece prior to attaching them to this system.
Connect the handpieces to the appropriate tubing connector. The handpieces are
automatically activated whenever they are removed from their holder. (Ensure that only one
handpiece is removed from the holder at a time to prevent multiple handpiece activation. If
so equipped, engage the handpiece lockout feature for additional safety.)
Handpiece holders can slide from side to side on the bar, they can
ratchet around the bar, and they can be rotated. For instrument
handpieces, a manual lockout lever shuts the holder off so the
instrument can be removed without having it activated by the rheostat.
To engage the lockout, lift the lever to a horizontal position Figure 2.3.-
A. To return the holder to normal operation, point the lever back down
to the floor. Figure 2.3.-B
2.3.1 Coolant Operation – Adjusting Coolant Spray
To activate the coolant water for a handpiece flip the toggle switch either located on the front of the system or on the foot
control. To deactivate the coolant water, flip the toggle switch to the OFF position.
To adjust coolant spray, locate the adjustment knob on the unit on the side or front. Turn the toggle switch for coolant spray
to ON, then turn the adjustment knob (clockwise to decrease, or counter-clockwise to increase) until the desired level of spray
is achieved. Note: For multiple instruments that provide coolant, individual adjustments are provided and are located in order
from left to right.
2.4 Optional Fiber Optics (if so equipped)
To determine the style of fiber optics you will need for your handpiece, look at the back of your handpiece or the swivel
coupler and compare the connections to the following drawings. For bulb replacement please refer to Service section of
this manual.
2.4.1 Five Hole Fiber Optic Systems
These systems are an adaptation of the four hole handpiece connection, simply by adding a fifth hole for the
light to enter the back of the handpiece. The light travels from the bulb up through the swivel coupler and
through the handpiece via fiber optic glass rods.
2.4.2 Six Pin Fiber Optic Systems
These systems are similar to five hole systems; however, instead of having the small bulb in the connector
at the end of the tubing, the bulb is contained in the swivel coupler from the handpiece. The connector at
the end of the handpiece tubing has two electrical sockets that connect to the two small wires. The swivel
coupler has two electrical pins that drop into these sockets when it is attached.
Unless specifically requested, units purchased with optional Universal Fiber Optics are set to a six pin
configuration at the factory. To modify the handpiece tubing to work with a bulb, remove the ISO adapter from the handpiece
tubing and insert the optional bulb ordered separately. First, remove
adapter.
Place bulb
into slot.
Figure 2.3.-A Figure 2.3.-B

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2.4.3 Fiber Optics Operation
In order for fiber optics to work, the fiber optic handpiece must be attached to the
handpiece tubing. Once the handpiece has been removed from its holder, press the foot
control to activate the fiber optics.
The specific handpiece air pressure may need to be increased to create the back pressure,
depending on the type of fiber optic handpiece you are using. Please refer to Adjusting
Handpiece Pressure for more information.
2.4.4 Install Swivel Coupler Onto Handpiece Connector
Tools Needed: Manufacturers handpiece/coupler wrench
Install Swivel Coupler:
1. Remove the quick connect coupler from the handpiece. (Fig. 2.4.4-A)
2. Insert coupler into handpiece connector, carefully align the coupler to handpiece
connector, making sure the rubber gasket touches. (Fig. 2.4.4-B)
3. Firmly tighten the coupler into handpiece nut. Use manufacturers small flat wrench to
hold coupler while tightening if necessary.
4. Place handpiece onto the quick connect coupler and test for leaks by running the
handpiece. (Fig. 2.4.4-C)

Fig. 2.4.4-A

Fig. 2.4.4-B

Fig.2.4.4-C

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3.0 maintenance
3.1 Equipment Care and Inspection
The equipment should be thoroughly cleaned and disinfected after use each day to maintain optimal performance.
The following visual checks and inspections should be performed before operating the unit:
Look for mechanical damage that could affect safe operation.
Ensure there are no missing parts or accessories.
Inspect components for tightness, cracks, wear or frayed electrical cords.
Should mechanical or other damage be evident that would affect the safe use or operation of the system, it should not be
used until repair or replacements correcting the defects are made.
3.2 Solid Trap
Warning – Infections Materials.
Check the solid trap filter and if partially obstructed or full replace with new filter. To replace filter, lift the composite
work top and slide to the side. Locate the lid to the solid trap, unscrew and lift off. Lift out filter and dispose of according to
hazardous waste protocol. Replace with a new filter.
3.3 Cleaning, Disinfection and Sterilization
3.3.1 General Cleaning
Cart surfaces can be cleaned with a soft cloth or sponge and mild cleaners and disinfectants containing alcohol. See below
for cleaning and maintenance of worktop. DO NOT spray disinfectants or other liquids into openings of carts as this may
cause damage to internal electrical parts. Apply disinfectant to cloth or sponge and then wipe down.
Handpiece tubings should be wiped down between patients with alcohol based disinfectants or other approved disinfectants
approved for dental use. Do not use concentrated bleach as this can damage the polymers in the tubing.
3.3.2 Wilsonart™ Care and Maintenance
Follow the guidelines listed below to keep your Wilsonart™ composite solid surface worktop looking as good as new.
Routine Care
Most dirt and stains Use soapy water or ammonia-based cleaner.
Water marks Wipe with damp cloth; towel dry.
Difficult stains Use an abrasive cleanser and a green Scotch-Brite™ pad.
Disinfecting Occasionally wipe surfaces with diluted household bleach
(1 part water/1 part bleach).
Maintenance Rub with Scotch-Brite™ pad alone.
Removing Cuts and Scratches
Sand with 180- or 220-grit fine sandpaper until cut is
gone. Restore finish with an abrasive cleanser and a green
Scotch-Brite™ pad.
3.3.3 Disinfecting the Water System and Handpiece Tubing
It is recommended to use the DentaPure Cartridge in the clean water system bottles to disinfect the water system. The DP365
is designed for use for one year without requiring daily maintenance. This cartridge is manufactured by MLRB International
and is available for purchase directly from ASI. To order online, visit asimedical.net/store and request part number 95-0281.
To use, the cartridge can be attached to the pick up tube that hangs down in the water bottle by screwing it into the supplied
fitting. To replace, unscrew the old cartridge and screw in the new one. Place the Date Changed label on the outside of the
clean water system as a reminder of when the next change is required.

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Caution: Do not use the DentaPure DP365 Cartridge for longer than its rated one-year period. The cartridge will no
longer provide disinfection for the system and may plug the unit and obstruct the water flow.
Caution: Do not use the DentaPure DP365 if using a shock treatment to disinfect lines as it will damage the cartridge.
The cartridge must be removed and a standard tubing used in the bottle for performing shock disinfection treatment of
the water system.
Caution: Do not use bleach to disinfect the water system. Due to its caustic nature, it can corrode certain internal
parts. Any damage is excluded from warranty coverage.
Caution: The user assumes all responsibility for maintaining and disinfection of the water system, and for periodically
having water sample tests performed to ensure that disinfection is satisfactory.
There are many other established methods for disinfecting a closed water system that consist of liquids, powders and tablets.
However, the chemicals used in these cleaners may damage the materials of the diaphragms used in the control block and
other valves in the delivery system. Further, tablets may not dissolve completely and may cause blockage of the water system.
Any damage to the system as a result of the use of these alternate cleaners is excluded from warranty coverage.
As an alternate, the bottles may be filled with a solution of 10 parts water and 1 part mouthwash that contains alcohol.
For more information on this protocol, please see abstract entitled “A Chemical Treatment Regimen to Reduce Bacterial
Contamination in Dental Water Lines” in the May 1997 issue of JADA. If using another type of disinfectant, follow the
instructions provided with your disinfectant for effective control of the growth of biofilms in the water line.
3.3.4 Syringe Tips
For reusable tips follow the manufacturer’s suggested guidelines for tip cleaning.
3.3.5 Sterilization
The System and the Attachments offered with it (Air/water syringe, Saliva ejector and High volume evacuator) are not provided
sterile. The air/water syringe and suction handpieces are designed for use with disposable tips. If using reusable tips supplied
by others, they must be properly sterilized before each use according to their manufacturer’s instructions. In addition to the
disinfection of these parts, a disposable barrier sleeve must be used to cover the air/water syringe, saliva ejector and high
volume evacuator (HVE). The disposable barrier sleeve must be discarded and replaced between each patient.
Follow all manufacturer’s instructions for sterilization of any optional accessories and dental handpieces made by others.
3.4 Preventative Maintenance Schedule
See complete schedule in appendix, section A4

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4.0 limited WaRRanty Rev 0907
ASI Medical, Inc. (ASI) warrants this product against defects in material and/or workmanship for one year for parts, 90
days for labor, from the time of delivery. During this coverage period, ASI’s sole obligation will be to repair, adjust or
replace defective parts only. ASI is not responsible for any time lost, inconvenience caused, or for any other incidental or
consequential damages. The warranty shall be voided by alteration (except by ASI), tampering, improper installation or
maintenance, accidental damage, or misuse of the product.
This warranty is made in lieu of all other warranties, expressed or implied, including any implied warranty of merchantability
of fitness for particular purpose. No employee, agent, franchise, dealer or other person is authorized to give any warranties of
any nature on behalf of ASI, except as provided herein.
ASI shall have no liability or responsibility to the customer, any other person, or entity with respect to any liability, loss, or
damage caused directly or indirectly by the product. Notwithstanding the above limitations and warranties, ASI’s liability
hereunder for damages incurred by the customer or other shall not exceed the amount paid by the customer for the particular
product involved.
ASI shall not be responsible for any warranty work done without first obtaining consent from ASI.
4.1 Specific Warranty Modifications
The following items and/or occurrences are not covered under the warranty:
Accidental Damage & Theft, including but not limited to the following:
• Damage from accident or misuse including cuts, tears and crushes to tubing, cracks in suction solids trap filters, housings,
broken casters, etc.
• Damage from use including scratches, dings, dents and deterioration to paint and overlays
• Theft or vandalism
Damage from Neglect or Improper Maintenance, including but not limited to the following:
• O-ring lubrication to valves in the air or water syringes and foot controls
• Flushing of handpiece or micro irrigation lines
• Removal of condensation from air lines
• Obstructions in water lines and handpiece tubing caused by foreign particles or chemical agents dispensed through the
lines
• Obstructions in suction lines caused by foreign particles or improper maintenance of trap filters
Disposable Type Items including but not limited to the following:
• Light bulbs, all filters, and certain types of tubing
4.2 Replacement Parts Limited Warranty REV 0806
Replacement parts (either purchased or replaced at no charge warranty) do not affect or extend in any way the original
warranty term provided. New replacement parts are provided with a ninety day warranty term from the time of shipment,
and does not include any other costs such as labor for installation, removal or shipping. These separate costs are the
responsibility of the customer. All other terms, modifications and exclusions provided in the system warranty apply to
replacement parts.

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5.0 tRouBleShootinG
5.1 Basic Troubleshooting Guide
The following information is not intended to isolate every problem that could arise with the dental system. It is, however,
designed to help you quickly identify problems that can be repaired without any special equipment or training.
5.2 Troubleshooting the Delivery Unit
If the system is maintained and given proper care, it will provide reliable service. If something does go wrong, the information
contained herein explains what can be done prior to physically removing the unit for extensive repair. If this information does
not identify and correct the problem, more detailed information is available in sections covering the individual components.
Problem Possible Cause Correction
Audible air leak from inside the control
panel
Loose fitting or tubing Open the cover. To find the leak, apply
a soapy solution to connections. When
leak is found, tighten or replace leaking
components.
Water leakage from within control
panel
Loose fitting or hole in tubing Apply water pressure, complete a visual
check for leak. Tighten or replace
leaking components.
Air bubbles in the coolant water and
syringe water flow
Low water level in clean water container Refill container.
Leak in water relay valve Replace valve.
Reduced or no flow of air or water Loose fitting Check all water fastener connections
and tighten if necessary.
Blocked or pinched tubing Make sure tubing is not pinched. If
tubes are not pinched, inspect for
blockage.
5.3 Troubleshooting the Closed Water System
Problem Possible Cause Correction
No Air Pressure Switch not on Turn Air Pressure to On
Faulty air regulator Replace in-line regulator
5.4 Troubleshooting the Air Water Syringe
Problem Possible Cause Correction
Valve cartridge leaks water. Worn O-rings Replace O-rings or valve assembly.
Valve cartridge button sticks. Debris build up Clean module cavity and valve
cartridge assembly.
Worn O-rings Replace O-rings.
Worn valve spring Replace spring.
Nozzle tube connection leaks water/air. Loose connection Check connections.
Worn O-rings Replace O-rings.
Clogged nozzle tube Debris from delivery system tubing or
sterilization deposits
Run cleaning wire through nozzle tube
and ultrasonically clean.
Spray mist occurs when depressing air
valve immediately following water valve
depression.
Worn nozzle assembly O-rings Replace O-rings.

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5.5 Troubleshooting the Handpieces
Problem Possible Cause Correction
Low pressure to handpieces Low pressure from compressor or
regulator in junction box
Check air pressure gauge. Ensure
75-80 psi prior to adjusting handpiece
block.
Air adjustment screws on control block
are closed or adjusted too low.
Turn adjustment screws (recessed in
console) counter-clockwise to increase
pressure.
Two or more handpieces run when only
one should.
Handpiece may not be seated properly
in holder.
Check that placement in holder
properly shuts off micro switch at the
base of the holder.
Water leaks from handpiece when
switch is on, but handpiece is not in
use.
Defective water relay Inspect water relay for proper function.
Replace if necessary.
Handpiece may not be seated properly
in holder.
Check that placement in holder
properly shuts off micro switch at the
base of the holder.
None of the handpieces work (no air or
water).
Pinched or crimped foot control tubing Check tubing and remedy or replace
tubing.
Water to 3-way syringe but there is not
water to the handpieces.
Valve off or pinched water line Ensure flow control valve is opened.
Water switch on foot control or control
panel turned off
Turn on water switch.
Defective water relay Replace water relay.
Water toggle switch defective Replace switch.
Tubing for air signal from toggle switch
is kinked.
Correct tubing.
Air escaping from foot control when not
in use.
Hole in gasket puck in control block. Replace gasket.
Water leaks from handpiece when not
in use.
Hole in gasket puck in control block. Replace gasket.
5.6 Troubleshooting the Fiber Optic System
Problem Possible Cause Correction
No Light Bulb loose Secure bulb in socket.
Bulb burnt out Replace bulb.
Power supply cord loose Push firmly into receptacle.
Faulty air signal to lamp control Check air signal tubing connection on
lamp control box.
Loose wiring Check wires connecting to the lamp
control box, transformer and handpiece
tubing. If a loose wire is found, refer to
wiring schematic and manufacturer’s
repair diagrams.

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6.0 SeRvice
6.1 Repair Service and Replacement Parts
In the event you require assistance with the set-up, operation or maintenance of your system, please call [phone] or
[phone] and speak with one of our Customer Service Representatives. Our service hours are from 8:00 a.m. to 4:30
p.m., in Colorado which is on Mountain Standard Time, Monday through Friday.
In many instances, service problems may be solved over the telephone. When requesting service, please have the following
information ready:
• Product / Model Number
• Date of Manufacture
• Serial Number of affected unit
This information can be found on the back of cart units. If service is required, you may need a service technician to go to your
office or have the unit sent to us for service. Please refer Storage/Shipping for instructions before shipping the unit.
Warranty service will be performed in accordance with ASI’s Warranty. Non warranty service will be provided at reasonable
parts and labor costs.
Replacement Parts
New or replacement parts may be ordered directly from ASI online or by telephone. To place an order, please contact our
Customer Service Department 8:00 a.m. to 4:30 p.m. MST:
Online: http://asimedical.net/store/
Toll Free: [phone]
Tel: [phone]
Fax: [phone]
6.2 Basic Service and Access
Service of the system is to be done only by qualified technicians who are aware of electrical and compressed air precautions.
6.3 Delivery System
For general maintenance and service, please refer to website for downloads of technical guidelines and videos.
6.3.1 Adjusting Handpiece Pressure
Drive air pressures for handpieces are pre-set at the factory to the recommended operating pressures for handpieces.
The handpiece pressure adjustments are small set screws or knobs located on the side panel of the system and
will be labeled with abbreviations for the type of instrument installed as follows:
FHS - Fiber Optic High Speed (air driven)
HS - High Speed (air driven)
LS - Low Speed (air driven)
US - Ultrasonic
Adjustment screws for electric instruments should be left in a fully open position to allow free air flow to pressurize and
exhaust off of the air/electric switches. Knobs are placed on adjustment screws to allow easier adjustment of operating air
pressures for air operated high and low speed handpieces.
To adjust the drive air pressure for each handpiece, perform the following steps:
1. Remove the handpiece from its holder. A handpiece must be connected to the tubing in order to register pressure on the
gauge.
2. Depress the foot control and read the handpiece pressure gauge on the front of the unit.
3. Rotate the handpiece air adjustment (clockwise to decrease, or counter-clockwise to increase pressure) until the desired air
pressure range is achieved, as specified by the handpiece manufacturer’s instructions.

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6.4 Fiber Optics and Instruments
6.4.1 Replacing a Fiber Optic Bulb
To replace a bulb in a five hole tubing configuration (see Figure 6.4 - A)
1. Remove the handpiece from the tubing.
2. Using the PVC bulb handle, insert lamp into the lamp socket. Do not touch glass
portion of the bulb with your fingers.
To modify a five-hole configuration to work with a six pin fiber optic handpiece,
remove the fiber optic bulb from the handpiece tubing and insert the ISO adapter
provided in the Accessory Kit. Figure 6.4-A