Cold Jet i3 MICROCLEAN User manual

SAFETY
General Safety Precautions............. 6
Electrostatic Discharge.................... 7
Carbon Dioxide ............................... 7
COMPONENT GUIDE
Front View ...................................... 10
Left/Right View............................... 11
Blast Applicator ............................. 12
Standard Carts ............................... 13
OPERATION
Start Up........................................... 16
Shut Down...................................... 16
Blasting........................................... 17
Blasting Technique ........................ 17
MAINTENANCE
Maintenance .................................. 20
Troubleshooting............................. 21
APPENDIX
Specifications ................................. 24
Blast Air Quality ............................. 25
Cold Jet Services ........................... 26
Symbol Glossary ............................ 27
Warranty ......................................... 29
Training Video................................ 31
OPERATOR MANUAL
i3MicroClean Dry Ice Blast System

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MODEL NO. 2A0169
VOLTAGE: 120/230 VOLTS AC
This manual illustrates the safety, operation, and
maintenance features of the Cold Jet i³ MicroClean.
The build and revision level is located on the
machine’s data plate.
All Machine diagrams are located on the inside of
the back panel.
The design contained in this manual was originated
by and is the exclusive property of Cold Jet, LLC.
It is not to be used in any way detrimental to the
interests of Cold Jet, LLC.
No part of this design or manual may be
reproduced, transmitted, stored in a retrieval
system, or translated into any other language or
computer language, in whole or in part, in any form
or by any means, whether electronic, mechanical,
magnetic, optical, manual or other, without the
express written consent of Cold Jet, LLC.
SPECIAL NOTES
All information contained within this manual,
or information derived from exposure to the
technology or equipment supplied by Cold Jet,
LLC remains “CONFIDENTIAL” between Cold
Jet, LLC and the purchaser or authorized user. Any
unauthorized transfer of information to any person
or company not in the direct employ of Cold Jet,
LLC, or not in the direct employ of the purchaser
or the authorized user, is strictly prohibited.
"Cold Jet" and "i3MicroClean" are registered
trademarks of Cold Jet, LLC
Copyright 2009
Cold Jet, LLC
All Rights Reserved
Printed in U.S.A.
P/N: 2W0309-G1

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SAFETY

6•NEVER OPERATE the unit without first reading the Operator
Manual.
•NEVER EXPOSE bare skin to CO2ice.
•ALWAYS WEAR thermal gloves, eye, and ear protection
(safety glasses and ear plugs).
•EVERYONE in the blast area must comply with all safety
requirements.
•NEVER POINT the nozzle at anyone and ALWAYS exercise
extreme caution when people are in the blast area.
•NEVER use a wire tie to hold the applicator trigger in the ON
position. Doing so can damage it and void its warranty.
•NEVER USE the blasting unit or hoses for anything except the
intended usage.
•ONLY USE dry ice as the blasting media.
•NEVER OPERATE in a confined space without an approved
ventilation system.
•NEVER operate the unit with guards removed.
•NEVER mask the machine's ventilation holes.
•NEVER ALLOW UNTRAINED PERSONNEL to operate the
blasting unit.
•NEVER OPERATE a damaged blasting unit.
•ALWAYS turn the main power OFF and remove the applicator
control cable before removing the blast hose.
•NEVER exceed recommended hose or blasting unit pressure
levels.
•ALWAYS ground the material being cleaned.
•ALWAYS ENSURE that hoses are securely attached.
•KEEP hoses and power cord out of forklift traffic areas.
•CHECK hoses and cables for nicks and gouges.
•DoNOT kink the blast hose before or during operation.
•NEVER DISCONNECT the air supply hose without first
shutting off the source air and bleeding lines.
•ONLY COLD JET TRAINED service technicians are allowed to
work on the unit’s electrical components.
•ALWAYS turn the application safety on before laying it
down or passing it to someone.
•DO NOT OPERATE equipment with electrical parts exposed,
jumpered or rendered inoperable.
•ALWAYS Follow the guidelines of the governing codes of your
local/national body as a minimum standard for ensuring safety.
GENERAL SAFETY PRECAUTIONS

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A) The power outlet must have a good ground
This is critical for electrostatic dissipation. If the
ground is not connected a charge will build up on
the unit or the applicator.
B) The static bonding cable must be attached
between the blast hose and target surface
If a target is on a non-grounded surface it will
build up an electrostatic charge, which could injure
the operator or damage the equipment. Attach
to hose and wrap or clip the cable to the target
to dissipate the charge. Metal framing, that holds
the target in place, can be used but the target
and frame must be electrically connected. Use a
conductivity tester for confirmation.
C) Know your environment
Electrostatic buildup changes as humidity levels
change and will vary by location. Electrostatic
discharge is higher at low humidity levels and
occurs most often during winter 32°F (0°C).
Electrostatic discharge
can be hazardous to
the operator and the
equipment. The static
charge of CO2varies
with the amount of ice
and humidity present.
Follow these instructions
to assure safe operation
while blasting.
•ThisunitutilizesCarbonDioxide(DryIce)asablastmedia.•DryIceisverycold,-110°F(-79°C),andmayfreezeskininstantly.•CO2is a heavy gas, which means it will settle to the ground.
•Alwaysventilatewhenblasting.•CO2is nontoxic, non-corrosive, non-conductive and is approved
by the FDA and USDA. While exposure to CO2gas is not
harmful in low concentrations, CAUTION must be exercised
when using any material that can DISPLACE OXYGEN.
CARBON DIOXIDE
Carbon Dioxide (CO2) is a naturally occurring gas and a
normal by-product of breathing. However caution MUST
be exercised!
ALWAYS USE PROTECTIVE CLOTHING
(THERMAL GLOVES) AND EYE PROTECTION
WHEN HANDLING CO2SOLIDS OR WHEN
USING THE BLASTING UNIT.
ELECTROSTATIC DISCHARGE

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COMPONENT GUIDE

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Fill Lid
Blast Hose
Connect
Control Cable
Connect
Blast Pressure
Regulator
Blast Pressure
Gauge
FRONT VIEW
Feed Rate
Control
Power
Switch
Power Indicator
Disable Blasting
(Stop)
(When light is on, the
machine will not blast.)
Hour Meter Applicator
Light Switch

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LEFT/RIGHT VIEW
Air Supply Hose
Connect
Carrying Handle
(2 person lift)
Ventilation
Ice Block Level Indicator
Chute Access
Port
Applicator Hook
Data Plate
Bleed Valve

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BLAST APPLICATOR
Nozzle
Connector
Control Cable
Blast Hose Fitting
with rotating union
Safety Switch
Right= Applicator Active
Center = Applicator Inactive
Left= Air Only (HOLD)
Trigger
Hanger
LED Lights

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STANDARD CART

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OPERATION

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VERIFY THE FOLLOWING SUPPLY AIR PARAMETERS:
•Theairpipeisatleasta.5in(12mm)indiameter.•Theairpressuredoesnotexceed140psig(9.7bar).•Theairtemperaturedoesnotexceed122°F(50°C).1. Make sure the power switch and bleed valve are OFF (O).
2. Securely attach the blast hose and control cable to
the machine.
3. Securely attach the applicator to the blast hose and
control cable.
4. Securely attach a nozzle to the blast applicator.
5. Attach the air supply hose to the air supply hose connect on
the right side of the machine.
Check the data plate for the operating pressure range.
Check the blast hose operating pressure.
6. Make sure the ice trough is dry, clean, and free of debris.
7. Connect the static bonding cable to the blast hose and target surface or to an
electrically conductive supporting structure.
8. Either turn on the air compressor or plug into an air drop and allow the air
supply hose to pressurize. Check for leaks.
Plug the power cord into an electrical outlet. If an extension cord is
necessary, it must comply with the power requirements of this unit and all
governing electrical codes (Check the data plate for the operating voltage
range).
10. Turn the power switch to the ON (I) position.
11. Turn the bleed valve ON (I) to purge water out of the lines, then turn it OFF
(O) to close it.
START UP
If the supply air
exceeds 140 psig
(9.7 bar) then use
an external pressure
regulator
1. Stop blasting and push the applicator safety switch toward the left to the center
position.
2. Turn the power switch to the OFF (O) position to shut off the power.
3. Open the fill lid, move the pusher plate away from the dry ice block, remove the
remaining ice from the trough, and close the lid.
4. Turn OFF the compressed air supply.
5. Turn the bleed valve ON (I) to evacuate all remaining pressure.
6. When the air hose is fully depressurized, disconnect all electric cables and hoses.
SHUT DOWN (FOR LONGER THAN 5 MIN)

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1. With the air hose pressurized and the unit ready,
2. Purge the system, of any debris, by blasting with air
for 1 minute.
Before loading the dry ice block into the trough,
turn the feed rate control to its maximum and
squeeze the trigger while holding the safety switch
to the left to purge the system.
After purging, return the feed control to zero then
slowly increase the dial to the desired blast setting.
3. Verify that the pusher plate is pushed back to the
end of the trough.
4. Place the dry ice block into the trough, against the
rotary knives.
5. Close the fill lid.
6. Push the applicator safety switch to the right and
squeeze the applicator trigger to blast.
BLASTING
Always purge the i³
MicroClean, before
inserting the dry ice
block, by blasting
with compressed air.
•Positiontheblasthoseformaximummaneuverabilitybeforeblasting.•Donotkinktheblasthose.•Holdnozzlesperpendiculartothesurfaceforfastestcleaning(recommended for most applications).
•Optimumstandoffdistanceis2in(5cm)formostnozzles.•Neverallowforeignobjectstoentertheicetrough!•Donotabusetheblastapplicatororcable.•Reducethefeedratetoavoidcloggingthenozzleatpressuresbelow50 psi (3.4 bar).
•Tondoptimumfeedrate,setthefeederspeedto0andincreasetherate to achieve desired results.
•Blastwithaironlyfor1minuteafterbreaks(tomeltanywatericebuild-up inside the blasting unit).
BLASTING TECHNIQUE

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MAINTENANCE

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MAINTENANCE
DAILY MAINTENANCE
1. Drain water out of the lines before using the
machine. (Turn the bleed valve ON (I) to drain the water).
2. While in operation check the pressure gauge for
damage.
3. Check the air and blast hoses for damage
(ie: cuts or scuff marks).
1. Check the rotary knives for wear and damage.
2. Make sure the nozzle airflow exit end is not
deformed or burred.
WEEKLY MAINTENANCE
MONTHLY MAINTENANCE
1. Check the air filter element.
BIANNUAL MAINTENANCE
1. Check pneumatic air lines
2. Check condition of power cord
3. Check all lights
4. Check static bonding cable
5. Check the accessories
6. Check all valves
7. Safety test the unit
8. Check chain tension
If you are not an
authorized Cold Jet
Service Technician,
please call to
schedule service.
[phone] or
([phone])
2. This machine has been manufactured with a
roller chain drive. CAUTION: MAKE SURE ALL
GUARDS AND PANELS ARE INSTALLED BEFORE
OPERATING.
The chain requires minimal maintenance. However,
it should be lubricated monthly for maximum drive
life.
For easy application of the lubricant (eg. Dupont™
Teflon™ Chain Saver Lubrication, McMaster Carr
part no. 8710T35 for 14oz.), spray through the
slotted vents on the left side panel.