Comco Microblaster mb1002 series Operation manual

Operation and Service Instructions

Dual Tank

MicroBlaster® MB1002

Issue Date: July 2016

This manual covers all of the variations of the MB1002 series

manufactured after July 14, 2016 (MB1002-1, MB1002-2, ETC)

Comco Inc.

2151 N. Lincoln Street

Burbank, California 91504

USA

Phone: 818-841-5500

www.comcoinc.com

Book P/N MB1247-1

File: MB1002.doc

Comco Inc. ii Issue Date: July 2016

Congratulations!

The Comco MicroBlaster® you have purchased is equipped with the latest

features to make it simple to operate and easy to maintain. The addition of

the auto-vent component means it is no longer necessary to manually vent

air from the unit after turning the power off.

Your new MicroBlaster® is also equipped with an innovative abrasive

hose connector utilizing the “Quicknut”. The new connector delivers longer

life than standard fittings, and the “Quicknut” enables you to change the

abrasive hose faster.

At Comco we strive to continually improve the MicroBlaster® to provide

you with the most efficient micro-abrasive blaster available today.

Comco Inc. iii Issue Date: July 2016

Table of Contents

The Comco Warranty.................................................................................................v

Safety Precautions.....................................................................................................vi

Section 1: The MicroBlaster MB1002.......................................................1-1

This section introduces you to the basic unit, including its

description, principles of operation, and detail specifications.

Overview........................................................................................................1-2

Figure 1-1, MicroBlaster MB1002......................................................1-2

How The MicroBlaster Works........................................................................1-3

Figure 1-2, MicroBlaster Pressurized................................................1-3

Figure 1-3, Modulator Open ..............................................................1-4

Figure 1-4, Modulator Closed............................................................1-5

Detail Specifications.......................................................................................1-6

Section 2: Getting Started.........................................................................2-1

This section tells you what you need to have and what you

need to do to set up the MicroBlaster.

The Proper Work Area...................................................................................2-2

Figure 2-1, Micro-abrasive Blasting System Requirements..............2-3

Figure 2-2, MicroBlaster Reference Sheet........................................2-4

What You Received with the MicroBlaster....................................................2-5

Basic Components of the MicroBlaster .........................................................2-6

Figure 2-3, External Component Locations.......................................2-7

Setup and Test...............................................................................................2-8

Section 3: Using the MicroBlaster ...........................................................3-1

This section discusses the selection of key operating

parameters such as abrasives and nozzles; and tells you

how to operate the MicroBlaster for maximum efficiency.

Abrasive Selection .........................................................................................3-2

Table 3-1, Factors Affecting Abrasive Blasting .................................3-3

Table 3-2, Abrasives and Their Applications.....................................3-5

Tank Orifice and Nozzle Selection ................................................................3-6

Table 3-3, Orifice Selection Chart .....................................................3-7

Figure 3-1, Changing the Tank Orifice ..............................................3-7

Figure 3-2, Changing the Nozzle.......................................................3-8

Table 3-4, Nozzle Chart.....................................................................3-9

General Operation of the MicroBlaster..........................................................3-12

Figure 3-3, Filling the Abrasive Tank.................................................3-13

Figure 3-4, Controls and Indicators...................................................3-14

Comco Inc. iv Issue Date: July 2016

Table of Contents

Section 4: Maintenance.............................................................................4-1

This section tells you what you need to do to keep the

MicroBlaster operating properly.

Normal Maintenance......................................................................................4-2

Table 4-1, Maintenance Intervals......................................................4-3

Parts Subject to Normal Wear.......................................................................4-4

Figure 4-1, Pinch Tube and Plunger Inspection................................4-5

Figure 4-2, Tank Cover Thread Wear ...............................................4-6

Leaks..............................................................................................................4-7

Auxiliary Equipment.......................................................................................4-7

Moisture .........................................................................................................4-8

Section 5: Trouble-shooting and Repair..................................................5-1

This section tells you what to do if you have a problem with

the MicroBlaster.

Trouble-shooting............................................................................................5-2

Customer Service ..........................................................................................5-2

How to Order Replacement Parts..................................................................5-3

Common Problems, Causes, and Solutions .................................................5-4

Table 5-1, No Air Flow.......................................................................5-4

Table 5-2, No Abrasive Flow .............................................................5-5

Replacing the Abrasive Hose and Fittings ....................................................5-6

Inspecting and Repairing the Pinch Valve ....................................................5-8

Inspecting and Repairing the Modulator........................................................5-10

Figure 5-1, Modulator Assembly........................................................5-11

Clogging.........................................................................................................5-13

Air Pressure Regulator ..................................................................................5-14

Tank Cover.....................................................................................................5-15

Section 6: Optional Equipment ................................................................6-1

This section details optional equipment available on the

MicroBlaster, and the use and servicing of these options.

Appendices

This section presents parts lists, drawings and schematics

for the MicroBlaster MB1002 and workstations.

Appendix A: Parts Lists.............................................................................................A-1

Major Assemblies and Principal Parts...........................................................A-2

Standard Accessory Parts .............................................................................A-6

Optional Parts ................................................................................................A-7

Recommended Spares..................................................................................A-8

Appendix B: Drawings and Schematics ...................................................................B-1

Appendix C: Workstations ........................................................................................C-1

Comco Inc. v Issue Date: July 2016

Welcome!

Welcome to the User’s Manual for the Comco MicroBlaster® model MB1002!

This manual is designed to help you set up, operate, and maintain the

MicroBlaster.

NOTE: Prior to setting up and operating your MicroBlaster, the

operator and the department supervisor should carefully

review this entire manual.

The Comco Warranty

Comco warrants that the MicroBlaster® model MB1002 will be free from all defects in

material and workmanship under normal use for a period of one year from the date of

purchase or 2,000 hours of normal operation, whichever comes first.

The warranty period begins when the equipment ships from the Comco facility and

applies to the original owner only. Comco is not liable for damages from any cause or

use of such equipment beyond the cost of repairing any defective parts.

If the equipment fails to perform satisfactorily during the warranty period, Comco has the

option to do any one of the following: 1) Send replacement parts to the customer to be

installed by the customer; 2) Repair the unit at the customer’s facility; or 3) Request that

the unit be returned to the Comco factory. Any replacement parts shall be furnished by

Comco without cost, F.O.B. the Comco factory in Burbank, California, provided that

Comco is notified of the defect within the warranty period. Any defective parts shall be

returned to Comco for inspection and analysis.

Exclusions

The above warranty does not apply to defects or problems resulting from improper or

inadequate maintenance by the customer; unauthorized modification or misuse; failure

to follow the operating instructions; the use of any supplies or parts, including but not

limited to nozzles, powders, and attachments, not manufactured or supplied by Comco.

The warranty also does not cover problems resulting from improper or inadequate

facilities (contaminated air, improper power) or items that should be expected to wear in

normal operation, such as nozzles, abrasives, tubing, or fittings.

This is Comco’s only warranty and is in lieu of all other warranties of

merchantability and fitness for any particular purpose. No representations or

warranties are authorized except as herein stated.

Comco Inc. vi Issue Date: July 2016

Safety Precautions

General Safety Considerations

The MicroBlaster® model MB1002 has been designed to be safe to operate

when used properly. Any device that is pressurized and requires electrical

power, however, requires that certain safety precautions be observed to avoid

potentially hazardous situations. The primary safety-related issues involved in

the use of the MicroBlaster are listed below; and addressed in detail on the

following pages.

1. Working with a device that is pressurized.

2. Working with an electrical device.

3. Working with a device that uses abrasive powders that could be

potentially dangerous if inhaled or ingested in large quantities or

put in constant contact with the skin.

4. General issues involved in operating machinery.

Working with a Device that is Pressurized

The MicroBlaster uses pressurized air to perform its basic function. To minimize

the risk of an accident related to air pressure, Comco also recommends the

following:

√The air supply system should have a shutoff valve located

upstream of the blasting machine so that the supply pressure can

be turned off independently of the blaster.

√Pressure relief valves should be incorporated into the supply

system to minimize the risk from system over pressure.

√Anyone who will use the MB1002 should be trained in its basic

operation.

√The MicroBlaster should always be turned OFF prior to performing

any maintenance.

√When replacing parts during maintenance, use only Comco parts

and verify that all installations are correct before using the

MicroBlaster.

Improper set-up or use of the MicroBlaster® MB1002 may result in a condition

that could be hazardous. All fittings and covers must be properly installed in

order to minimize any hazard.

Comco Inc. vii Issue Date: July 2016

Working with an Electrical Device

The electrical hazards associated with the MicroBlaster are minimal, since all

primary electrical components are inside the primary housing. However, the

operator should take precautions that apply to any electrical device that has a

power cord that plugs into an electrical outlet. These precautions include:

√Verify the proper operating voltage on the MicroBlaster by

checking the nameplate located on the back of the unit.

√Before plugging the power cord into an electrical outlet, examine it

for evidence of damage such as cracked, worn, or torn insulation;

exposure of bare wires; or bent tines on the plug.

√Ensure that the machine is never operated near water or while it is

wet.

√Always verify that the power switch is in the OFF position when

the machine is not in use for long periods of time.

When working inside the MicroBlaster housing, there is the possibility of electrical

shock. To minimize this hazard, Comco recommends the following:

√Unplug the unit from facility power any time the machine’s cover

will be removed.

√Do not operate the MicroBlaster with its cover removed.

√Keep the interior of the MicroBlaster clean of dust, powder, and

any foreign object or substance that could conduct electricity.

CAUTION: Some abrasive powders are conductive and

may present a hazard if allowed to

accumulate inside the machine.

Working with the Abrasive Media

The MicroBlaster uses several types of abrasive media that should not be

inhaled or ingested in large quantities or maintained in prolonged contact with the

skin. When working with the abrasive media, Comco recommends the following:

√Do not direct the abrasive blast on bare skin or face/eyes.

√A workstation and dust collector must be used in conjunction with

the MicroBlaster. If you must blast outside a workstation, a full

face mask and oxygen supplied respirator and hand protection are

required per NIOSH (National Institute for Occupational Safety

and Health).

√Handling operations such as repackaging or refilling of the

abrasive media should only be performed in well-ventilated areas

and with proper care to minimize dust in the eyes or breathing

passages. Always use a dust respirator for dust protection when

exposed to dust clouds. The 3M respirator #8710 is NIOSH/MSHA

approved for these types of abrasive handling operations.

Comco Inc. viii Issue Date: July 2016

Working with the Abrasive Media (cont’d)

√Certain abrasive media, such as glass beads, can present a

slipping hazard if they are spilled on the ground. Always clean up

spilled abrasive and place appropriate warning signs in areas

where the abrasive will be on the ground (such as during long-

term operation).

√Abrasive powders, particularly glass beads and plastic, may

generate static charges. To minimize the risk of electrostatic

discharge, ground the MicroBlaster and the workstation. In some

instances, the operator may also wish to use grounding straps

(Wrist-Stats™ or equivalent).

√Flammable powders, such as walnut shell and plastic, may pose a

fire or explosion hazard. Always use a vigorous dust extraction

device to prevent hanging dust clouds.

√After using the MicroBlaster, or after handling any of the abrasive

media, wash your hands before touching or rubbing your eyes.

√Gloves may be necessary for operators who are sensitive to

powders or dust on their skin.

√Some powders, if allowed to collect inside the machine, may

cause electrical shorts.

√Abrasives cause wear to virtually every surface they come in

contact with. Keep the threads on the tank and tank cover clean

of abrasive powder to avoid wear that can cause a dangerous

condition. See Section 4 for details on how to check for tank cover

wear. Also, always fill the tank through the flapper valve to greatly

reduce the amount of wear on the threads.

Material safety data sheets (MSDS’s) for all abrasives distributed by Comco are

available from the Comco factory. Every powder shipment includes an MSDS.

Contact the Comco Customer Service department to obtain extra copies of any

MSDS.

Avoiding Hazards Associated with Operating Machinery

√Place the MicroBlaster securely on a solid workbench or counter

so that the unit cannot tilt or fall over.

√Always secure the nozzle-end of the abrasive blast hose before

pressurizing a blasting unit. An unsecured hose may whip around

and cause injury or damage.

√Keep fingers out of the hose pinch.

√When working inside the cabinet, avoid possible sharp edges and

remember that solenoids on valves can become hot.

√Set up the MicroBlaster and workstation so that it is ergonomically

correct to allow safe and comfortable use by all operators.

√Route the foot pedal cord from behind the bench to prevent it from

becoming a possible trip hazard.

√When refilling the tank, set the tank cover flat on its end to avoid it

rolling off the bench.

Comco Inc. ix Issue Date: July 2016

Avoiding Hazards Associated with Operating Machinery (cont’d)

The following warning labels/pictograms are utilized in the MicroBlaster CE

(European) versions:

Symbol

Meaning

ELECTRICAL HAZARD

HAND PROTECTION RECOMMENDED WHERE

APPROPRIATE

EYE PROTECTION RECOMMENDED WHERE

APPROPRIATE

RESPIRATORY PROTECTION RECOMMENDED

WHERE APPROPRIATE

MicroBlaster MB1002 Section 1: The MicroBlaster MB1002

Comco Inc. 1-1 Issue Date: July 2016

Section 1: The MicroBlaster MB1002

In This Section

This section gives you an overview of your MicroBlaster

including:

A general description of the MicroBlaster.

How the MicroBlaster Works.

Detail specifications.

Section 1: The MicroBlaster MB1002 MicroBlaster MB1002

Comco Inc. 1-2 Issue Date: July 2016

Abrasive Tanks

Air Pressure

Control

Powder Flow

Control

Power Switch

Handpieces &

Nozzles

Overview

The Comco MicroBlaster® model MB1002 is a compact bench-top machine that delivers

a precisely controlled stream of micro-abrasive particles at high velocity. With the

appropriate abrasive powder and the necessary adjustments, it will clean, deburr, cut or

drill any material, particularly hard or brittle ones. Since dry air is used as a propellant, it

is a relatively clean process.

The machine is essentially simple and uncluttered (see Figure 1-1). It consists

principally of an inlet air valve (rear panel), air pressure regulator with gage, a tank

select switch, modulators (internal), abrasive powder tanks, and mixing chambers. The

abrasive hose pinch assemblies to stop and start the abrasive flow, the footswitch to

actuate them, and handpieces that hold the precision nozzles, complete the machine.

All the component parts are manufactured to the highest standards and are designed for

maximum life consistent with reasonable cost. The basic mechanisms employed,

particularly the modulators, are covered by the following patents:

United States: ............3,053,016 Johnson

3,084,484 Hall

3,638,839 Weightman

United Kingdom: ........1,243,294

Additional United States and foreign applications for patents are pending.

Figure 1-1: The Comco Dual Tank MicroBlaster MB1002

MicroBlaster MB1002 Section 1: The MicroBlaster MB1002

Comco Inc. 1-3 Issue Date: July 2016

How the MicroBlaster Works

As shown in Figure 1-2, below, when the MicroBlaster Power Switch on the front panel is

initially turned “ON”, supply air enters through the energized air valve at the back of the

unit. The supply air passes through a regulator that allows the operator to control the

system pressure, as indicated by the gage on the front of the machine.

The regulated air then passes through an open, or de-energized, modulator assembly

and into the mixing chamber and abrasive tank (only one tank shown). Air cannot

escape through the nozzle because the hose pinch (or shut-off) assembly is closed. The

air pressure inside the system builds up until it reaches the regulated pressure.

Figure 1-2: MicroBlaster, Pressurized

The MicroBlaster, as shown in the illustration above, is now pressurized and ready to

use. To operate the MicroBlaster from this point would simply require picking up the

nozzle for the selected tank, pointing it at the item to be blasted, and depressing the

footswitch to begin blasting. What happens when the machine is actually in operation is

explained on the following pages.

Section 1: The MicroBlaster MB1002 MicroBlaster MB1002

Comco Inc. 1-4 Issue Date: July 2016

How the MicroBlaster MB1002 Works (cont’d)

Stepping on the footswitch used to operate the MicroBlaster causes two things to happen:

1) The hose pinch (shut-off) assembly for the selected tank opens, which

allows air to flow from the nozzle. Refer to Figure 1-3, item 1.

2) An electrical signal is sent to the coil of the modulator assembly which

energizes and de-energizes it 60 times every second. Refer to Figure 1-

4, item 2.

At the beginning of the operating cycle (as shown in Figure 1-3, below), the hose pinch is

opened. Before the modulator has had a chance to energize, regulated air flows freely through

the open modulator valve, the mixing chamber, and out the nozzle.

Figure 1-3: Modulator Open

Since the air flowing from the regulator into the mixing chamber is at basically the same

pressure as that in the tank, the upward force of air keeps the abrasive in the tank. At this point,

little or no abrasive is being injected into the air stream.

MicroBlaster MB1002 Section 1: The MicroBlaster MB1002

Comco Inc. 1-5 Issue Date: July 2016

How the MicroBlaster MB1002 Works (cont’d)

In the second half of the operating cycle, the modulator coil becomes energized. This

pulls the modulator core against the seat (see Figure 1-4, below), shutting off the airflow

from the regulator. The pressure in the mixing chamber now decreases because the

downstream end of the system, at the nozzle, is open to the atmosphere.

Since the pressure in the mixing chamber is lower than the pressure in the abrasive

tank, the two pressures try to balance. Air pressure inside the abrasive tank pushes a

small amount of abrasive through a precision orifice at the bottom of the tank, into the

mixing chamber and out through the nozzle.

Figure 1-4: Modulator Closed

When the next cycle begins, the modulator is again de-energized, and opens to allow

pressurized air to freely flow into the mixing chamber and out the nozzle. This forces air

back into the abrasive tank, stabilizing the pressure between the tank and the mixing

chamber (refer back to Figure 1-3).

Each cycle happens very quickly; 50-60 times per second. The end result of this

“stop/start” action of the modulator is a consistent stream of abrasive out the nozzle, as

long as the footswitch is depressed. Releasing the footswitch stops the modulator from

cycling and causes the pinch assembly to close the outlet air hose.

The only way for the abrasive powder in the tank to reach the mixing chamber is via the

orifice at the bottom of the tank. By changing the size of the tank orifice, you can

change the amount of abrasive that enters the mixing chamber, and thus change the

abrasion or cutting rate at the nozzle. Additional information regarding the tank orifice,

nozzle sizes, abrasives, and other variables in the abrasive blast process is presented in

Section 3 of this manual.

Section 1: The MicroBlaster MB1002 MicroBlaster MB1002

Comco Inc. 1-6 Issue Date: July 2016

Detail Specifications

Abrasive (see Section 3)

Type Selected powder, smooth to sharp, soft to hard

Size 20 to 300 Microns

Nozzles (see Section 3)

Material Highest quality Tungsten Carbide

Sizes, Round 0.015 to 0.060 in. Dia. (.381 to 1.524 mm)

Sizes, Rect. 0.008 x 0.020 to 0.012 x 0.150 in. (.203 x .508 to

.305 x 3.81 mm)

Configuration Straight or Right Angle

Air Type Dry Compressed Air, Nitrogen, or CO2

Supply Pressure 80 to 140 PSIG (5.5 to 9.65 Bars)

Volume, Max 2.4 SCFM (68 SLM)

Working Pressure 40 to 125 PSI (2.7 to 8.6 Bars)

Moisture 200 PPM Max

Oil 10 PPM Max

Particles 5 Microns Max

Electrical

Voltage[*] 115 or 230 (+10, -20) VAC

Frequency 50/60 Hz

Power 40 Watts

Physical

Width 22 in. (56 cm)

Depth 10 in. (25.5 cm)

Height 9 in. (23 cm)

Weight 29.5 lbs. (13 kg)

Tank Volume, each 50 in3(820 cm3)

Tank Capacity, abrasive 2 lbs. (1 kg)

During normal operation, employing a 0.030" diameter nozzle, a 0.025" diameter tank

orifice, and 25 micron aluminum oxide powder; a full tank of powder (approximately 2

lbs.) will last about 4 hours of actual blast time; air will be used at about 60 standard

cubic feet per hour at 80 psig; and nozzle life will be 8 to 35 hours depending on the

amount of wear that can be tolerated.

[*] Operating voltage specified by order and as shown on nameplate.

MicroBlaster MB1002 Section 2: Getting Started

Comco Inc. 2-1 Issue Date: July 2016

Section 2: Getting Started

In This Section

This section tells you what you need to do to prepare

for using your MicroBlaster, including:

The work area required to properly use the

MicroBlaster.

What you received with the MicroBlaster.

Basic Components of the MicroBlaster.

Setting up and testing the MicroBlaster.

Section 2: Getting Started MicroBlaster MB1002

Comco Inc. 2-2 Issue Date: July 2016

The Proper Work Area

The MicroBlaster should be used in an environment that:

Provides adequate ventilation.

Provides adequate lighting both inside and outside the primary

workstation. Comco recommends that the general environment be

illuminated with at least 50 decaluxes and that the interior of the

workstation be illuminated with a minimum of 125 decaluxes.

Is between 68ºF and 85ºF, with less than 40 percent relative humidity.

The MicroBlaster is intended for use in a factory or shop environment. It is not designed

for use where it could be exposed to rain, caustic chemicals, heavy vibration, and other

non-standard environments. Use in applications other than those described in this

manual may result in hazardous conditions and void the warranty.

Since it is impossible to achieve 100% containment of the abrasive within the system, it

is not recommended for use in a “clean room”.

In addition to the MicroBlaster, typically three additional elements are needed for proper

micro-abrasive blasting: a workstation, a dust collector, and a dry air supply. The

following paragraphs explain the importance of each of these items. Refer to figure 2-1

to see how these items work together as a complete system.

Workstation

A suitable hood or box providing a means of working with the abrasive material without

contaminating the atmosphere of the room is required. It must protect the operator's

face and provide adequate light. The Comco WS2200 and WS6000 WorkStations are

designed for this purpose. Refer to Appendix C for more information.

Dust Collector

In order to remove the spent abrasive, a suitable industrial dust collector is required.

These dust collectors have both high airflow and large filter areas to keep work areas

clean and dust free. The Comco DC2000 and DC2100 are both suitable dust collectors

for most micro-abrasive blasting applications. A four-inch diameter hose, supplied with

the dust collector, is used to connect the workstation to the dust collector.

Air Supply

The propellant required for the abrasive is compressed air or neutral gas that meets the

Detail Specifications outlined in Section 1. Comco has a complete line of air dryers for

shop (compressed) air supplies that will meet or exceed those specifications.

Bottled gas such as CO2or nitrogen provides clean, dry air, and may be used if shop air

is not available. However, depending on operating conditions, a 50 lb. bottle of gas will

only last 10-20 hours. Bottled gas does not require air dryers, but may require special

regulators. Contact Comco for more information.

MicroBlaster MB1002 Section 2: Getting Started

Comco Inc. 2-3 Issue Date: July 2016

Dust Collector

Air Dryer

MicroBlaster

MB1002

Workstation

Abrasive

Media

Figure 2-1: Micro-abrasive Blasting System Requirements

Electric Power

A source of 115 or 230 VAC, 50/60 Hz, capable of providing 100 watts is required for the

MB1002. If the WS2200 or WS6000 WorkStation is used, it requires 40 watts. The

DC2100 Dust Collector, if used, requires about 16 amps for its 1-HP motor. Actual

voltage required for each machine will be found on the nameplate.

Section 2: Getting Started MicroBlaster MB1002

Comco Inc. 2-4 Issue Date: July 2016

Figure 2-2: MicroBlaster Reference Sheet

Figure 2-2 is an illustration of the Reference Sheet that comes with your MicroBlaster. It

contains important information you can use to get the most out of your investment. Keep

it nearby and refer to it often. However, it cannot substitute for the comprehensive data

found in this manual. Prior to setting up and operating your MicroBlaster, the operator

and the department supervisor should carefully review this entire manual.

QUICK START INSTRUCTIONS

You may use this tip sheet to quickly get your MicroBlaster set up and ready to operate, and as a ready reference for common questions regarding the

operation of the MicroBlaster. Keep it nearby and refer to it often. For complete details on the MicroBlaster, Comco strongly urges you to read the manual

completely.

The money invested in this equipment justifies this time.

SAFETY PRECAUTIONS

1 The MicroBlaster operates using high voltage electrical power and high-pressure air. Proper set-up, operation, and maintenance are

essential for safe use. Read the Safety Precautions in the introduction of the manual before using your MicroBlaster.

2 You must use proper dust collection and a WorkStation in conjunction with the equipment.

3 Never point the nozzle at exposed skin, eyes, or face.

4 Always be sure that the nozzle is held firmly before activating the foot pedal.

5 Add abrasive to the tank through the “Quick-fill” valve using the funnel provided in the accessory kit. Wipe the flapper and O-ring with

a soft dry towel after abrasive powder is added with the funnel to get an airtight seal. Don’t overfill the tank. 1 1/4” from the top is

maximum. Make sure the tank cover is tightened snugly.

To change abrasives, see instructions in Section 3.

MICROBLASTER SETUP TIPS

1 Verify that the hose from the dust collector is connected to the 4” collar on the back panel of the WorkStation. For optimum dust collection, the

hose should be as short as possible.

2 Position the MicroBlaster on top or along side of the WorkStation.

3 Verify the MicroBlaster is connected to a dry air supply of 80 - 140 PSIG. Bottled CO2or nitrogen is recommended if dry air from a

compressor is not available. See page 2-6 of the manual for instructions.

Note: If the pinches on the rear panel do not close when the machine is turned on, the air supply pressure is probably too low.

4 Pass the handpieces through the small ports on the side of the WorkStation. The “Tank Vent” hoses should be pushed 2-3” through a grommet

on the backside of the WorkStation.

5 Add abrasive to the tanks through the “Quick-fill” valve using the funnel provided in the accessory lot. Wipe the flapper and O-ring with a soft dry