Welch Allyn Kreativ Kompressor User manual
KOMPRESSOR
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SERVICE MANUAL
Copyright Notice:
Copyright © 1999, Kreativ, Inc. All rights reserved. No part of this manual may be
reproduced without written permission from Kreativ, Inc.
Manufactured by
Welch Allyn Kreativ, Inc. (USA)
7360 Carroll Road
San Diego, CA 92121
990276 Rev. A
European Authorized Representative
Welch Allyn LTD.
Navan, Co. Meath
Republic of Ireland
Ph: 353-46-79060
TABLE OF CONTENTS
1. GENERAL INFORMATION......................................................................................................................................................4
1.1 INTRODUCTION.......................................................................................................................................................................4
1.2 PURPOSE OF MANUAL...........................................................................................................................................................4
1.3 SAFETY SUMMARY................................................................................................................................................................4
1.4 APPLICATIONS........................................................................................................................................................................5
1.5 CONTRAINDICATIONS............................................................................................................................................................6
1.6 E NVIRONMENTAL CONSIDERATIONS..................................................................................................................................6
1.7 SYSTEM SPECIFICATIONS .....................................................................................................................................................6
2. THEORY OF OPERATION.......................................................................................................................................................7
2.1 INTRODUCTION.......................................................................................................................................................................7
2.2 FUNCTIONAL DESCRIPTION.................................................................................................................................................7
2.3 COMPONENT IDENTIFICATION............................................................................................................................................8
3. ROUTINE MAINTENANCE .....................................................................................................................................................13
3.1 ROUTINE MAINTENANCE OF THE KOMPRESSOR ..........................................................................................................13
3.2 MONTHLY REQUIREMENTS................................................................................................................................................13
3.3 ANNUAL REQUIREMENTS...................................................................................................................................................16
3.4 2 Y EAR REQUIREMENTS......................................................................................................................................................21
4. TROUBLESHOOTING............................................................................................................................................................23
4.1 TROUBLESHOOTING CHART ...............................................................................................................................................23
5. SPARE PARTS LIST...............................................................................................................................................................24
5.1 TUBING...................................................................................................................................................................................24
5.2 FILTERS/MECHANICAL/PNEUMATIC COMPONENTS......................................................................................................24
5.3 FITTINGS ...............................................................................................................................................................................24
5.4 ACCESSORIES AND OTHERS.................................................................................................................................................24
5.5 ADHESIVES.............................................................................................................................................................................25
5.6 CHASSIS COMPONENTS........................................................................................................................................................25
5.7 MAINTENANCE KITS...........................................................................................................................................................25
6. WARRANTY, RETURNS AND ADJUSTMENTS...............................................................................................................26
6.1 RETURNS AND ADJUSTMENTS...........................................................................................................................................26
6.2 L IMITED WARRANTY..........................................................................................................................................................26
6.3 STORAGE AND SHIPMENT ..................................................................................................................................................26
990204 Rev. A Page 2 of 25
TABLE OF FIGURES
FIGURE 1 SYSTEM.............................................................................................................................................................................7
FIGURE 2 KOMPRESSOR COMPONENTS.......................................................................................................................................10
FIGURE 3 KOMPRESSOR COMPONENTS.......................................................................................................................................10
FIGURE 4 KOMPRESSOR COMPONENTS.......................................................................................................................................11
FIGURE 5 KOMPRESSOR PNEUMATIC BLOCK DIAGRAM..........................................................................................................11
FIGURE 6 OIL SITE G LASS..............................................................................................................................................................12
FIGURE 7 OIL FILL HEX PLUG.......................................................................................................................................................13
FIGURE 8 JUN AIR MUFFLER.........................................................................................................................................................14
FIGURE 9 MANUAL DRAINS...........................................................................................................................................................14
FIGURE 10 FILTER LOCATIONS.....................................................................................................................................................15
FIGURE 11 OIL COLLECTION BOTTLE........................................................................................................................................15
FIGURE 12 KOMPRESSOR TOP REMOVAL....................................................................................................................................16
FIGURE 13 FILTER ASSEMBLY REMOVAL...................................................................................................................................17
FIGURE 14 OIL COLLECTION BOTTLE........................................................................................................................................17
FIGURE 15 OIL COLLECTION BOTTLE BOWL AND “O” RING ................................................................................................17
FIGURE 16 OIL COLLECTION BOTTLE COMPONENTS.............................................................................................................18
TABLE 1 MAINTENANCE CHECKS................................................................................................................................................19
990276 Rev. A Page 3 of 25
1. General Information
1.1 Introduction
The Welch Allyn Kreativ Kompressor is a compact, highly reliable, state of the art instrument designed for use with
Welch Allyn KREATIV Air Abrasion systems. It is designed as a stand alone means of supplying clean dry air for
use by these systems.
Note: Use of the Kompressor system in a set up that is not included or suggested in this instruction guide is not
advised. Similarly, the Kompressor system should be only used by someone who is thoroughly familiar with this
manual.
1.2 Purpose of Manual
This manual should be thoroughly studied before installing, using, or performing maintenance on the equipment.
Please feel free to call Welch Allyn Kreativ or their representative if you need additional information regarding
installation, operation, or service of the instrument.
Information essential to the installation, operation, and routine maintenance of the Kompressor system manufactured
by Welch Allyn Kreativ, is included in this manual. The instructions are written specifically for personnel who have
been trained to perform maintenance on the unit.
1.3 Safety Summary
1.3.1 Read This Manual
Prior to operating or servicing the Kompressor, this manual must be read and understood. If something is not clear,
call the factory for assistance before proceeding. Keep this and other associated manuals for future reference.
1.3.2 Use Proper Power Connections
Use proper wiring and connection methods to satisfy appropriate electrical codes.
1.3.3 Do Not Remove Covers Or Panels
To avoid electrical shock hazard, do not remove covers or panels when power is supplied to the unit. Do not operate
the device when the covers or panels are removed.
1.3.4 Shock Hazard
Connect the Kompressor to a properly grounded outlet in accordance with the National Electrical Code.
WARNING: Do not under any circumstance remove the ground wire or the ground prong from any power plug. Do
not use extension cords with the Kompressor equipment.
1.3.5 Device Labeling
990276 Rev. A Page 4 of 25
Do not under any circumstances remove any CAUTION, WARNING, or other descriptive labels from the device.
1.3.6 Other Safety Statements
Other safety statements are included within the manual text and are identified as follows:
• CAUTION: Caution statements identify conditions or practices that could result in equipment or
property damage.
• WARNING: Warning statements identify conditions or practices that could result in personal injury or
loss of life.
1.3.7 Cautions
Do not attempt to service the unit beyond those items described in the maintenance section. Call Welch Allyn
Kreativ or their representative for instructions.
Do not substitute non-Welch Allyn Kreativ , materials or accessories. Use of materials or accessories supplied by
other manufacturers may result in damage to the unit and will void the factory warranty.
Sound clinical judgment, good common sense, and proper training are essential to the successful service of the unit
in order to provide safe and efficient patient care.
1.3.8 Safety Markings on Labels
Alternating current
Protective earth (ground)
Attention, consult accompanying documents
Off (power: disconnection from the mains)
On (power: connected to the mains)
Type B equipment
1.4 Applications
990276 Rev. A Page 5 of 25
The Kompressor is designed for simple, reliable, and efficient operation with minimal maintenance. The Welch Allyn
Kreativ Kompressor system is designed to deliver continuous air pressure and flow.
1.5 Contraindications
Welch Allyn Kreativ products are designed for use by and on the order of a dentist. Furthermore, Welch Allyn
Kreativ products are not intended to be used outside the device’s specifications or limitations. Results are not
guaranteed or warranted if other than approved (Welch Allyn Kreativ) disposable products are used.
1.6 Environmental Considerations
Prior to the installation of the Kompressor air abrasion unit, it will be necessary to provide utilities and create an
environment suitable for the trouble-free operation of the equipment.
1.6.1 POWER
All components operate on 120 VAC (220 VAC International), single phase power. The use of surge protectors is
recommended when possible.
1.7 System Specifications
Size 16” W x 23” H x 20.5” D
(6.3 cm W x 9 cm H x 8 cm D)
Weight 75 lbs. (34 kg)
Environment
Operational Temp: 50°F (+10°C) to 104°F (+40°C)
Relative humidity: 30% to 75%
Pressure: 10.15 psi (70 kPa) to 15.3 psi (106 kPa)
Transport and
Storage
Equipment
Classification
Temp: -40°F (-40°C) to 158°F (+70°C)
Relative humidity: 10 % to 90 %
Pressure: 7.25 psi (50 kPa) to 15.3 psi (106 kPa)
Class I (requires an electrical earth ground) and
ordinary protection against ingress of water. This
unit is designed for continuous operation.
990276 Rev. A Page 6 of 25
2. Theory of Operation
2.1 Introduction
The Kompressor is made for use with a Welch Allyn Kreativ air abrasion system.
Mach - 6 Unit
mounted
Compressor
Assembly
Figure - 1 Compressor Assembly with mounted Mach-6
2.2 Functional Description
When the unit is initially turned on, the fan energizes and the compressor will turn on allow the accumulator tanks to
pressurize. Once 160 PSI is reached, the compressor motor turns off by action of the mechanical/electrical pressure
switch and motor start relay. Upon turning off of the compressor motor, the head pressure release valve dumps the
head pressure into the oil collection bottle. As air is drained from the accumulator tanks, when the pressure in the
lower tank reaches 125 PSI, the compressor motor turns on, at the same time, the Tank Purge valve opens, for
990276 Rev. A Page 7 of 25
approximately 1 second, and purges the oil/water in the bottom of the air tank then closes and the compressor turns
on.
2.3 Component Identification (refer to Figure - 2, 3, and 4)
2.3.1 Compressor Motor
The compressor motor is an oil bath version capable of delivering 1.2 CFM @ 120 psi. The motor can be rated at 120
VAC or 240 VAC.
2.3.2 Air Input Muffler
The air input Muffler keeps dirt out of the internal oil bath. The motor is shipped with a cap in this location to avoid
oil spillage during transportation. It must be removed and replaced with the filter before applying power.
2.3.3 Starter Capacitor
The starter capacitor comes with the motor and is located under the electrical box.
2.3.4 Mechanical/Electrical Pressure Switch & Motor Start Relay
The pressure switch module is mounted to the lower air tank, and has a plastic cover with an Off / Auto switch
located on top. Leave this switch in the Auto position. An mechanical/electrical pressure switch starts the motor
when the pressure drops to 125 PSI and stops the motor when the pressure reaches 160 PSI. It also opens the tank
purge valve (for a second or two) each time the motor starts, and opens the head pressure release valve each time the
motor shuts off. The motor On/Off set point is adjusted by screws under the plastic cap.
2.3.5 Head Pressure Release Valve (Unloader valve)
The head pressure release valve opens each time the motor shuts off, and dumps the pressurized air/oil from the
motor head into the oil collection bottle. This makes it easier for the motor to start. It is mounted underneath the
mechanical/electrical pressure switch assembly.
2.3.6 Tank Purge Valve
The tank purge valve, located next to the air shut off valve, opens for one second each time the motor turns on. This
valve purges the oil/water that collects at the bottom of the air tank into the oil collection reservoir.
2.3.7 Upper Air Tank
The upper air tank is a 1.5 liter tank mounted horizontally above the compressor motor.
2.3.8 Check Valve
The check valve allows air flow into the upper air tank, but not out of.
2.3.9 Blow Off Valve
The blow off valve, a spring loaded safety release valve (set @ 175 ± 7 psi) is attached to the bottom of the upper air
tank.
2.3.10 Lower Air Tank
The lower air tank, 1.5 liter tank mounted vertically, is located next to the compressor motor. The pressure switch
assembly, shut off valve, pressure gauge, and tank purge valve are in the lower air tank.
2.3.11 Pressure Gauge
The pressure gauge, mounted on the lower air tank, indicates tank pressure. Used to monitor motor turn on and off
pressures as set by the pressure switch. For quick reference only.
990276 Rev. A Page 8 of 25
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