How to Use the AUTOOL HTS828 Dry Ice Cleaning Machine

The AUTOOL HTS828 is a professional dry-ice carbon-cleaning machine. This guide turns the current model-specific controls and official operating sequence into a practical start-to-finish workflow.

Before you start

Work in a clean, well-lit and ventilated area. Stabilize the vehicle, keep rotating or hot components out of the work zone, and open the exact vehicle procedure for the system and test point you will use. A tool connection is not automatically safe just because an adapter fits.

• confirm that the model label reads AUTOOL HTS828 and that the controls match this guide;
• inspect the housing, cables, clamps, hoses, fittings, seals and adapters for damage or contamination;
• identify the permitted connection point, test range, vehicle state and acceptance criteria before connecting;
• keep eye protection and the task-appropriate gloves within reach; and
• plan how you will return the vehicle circuit or line to its original sealed condition after the test.

Use the AUTOOL manual download center to locate the current instructions when a manual is available. The delivered model label and current vehicle service information control if an older image or remembered setting differs.

HTS828 controls and specifications

The AUTOOL HTS828’s key controls and functions include ：, whether the air compressor is providing sufficient air supply, prevents unstable dry ice output, ：, 1-2 m³/min. Confirm each relevant control on the physical unit before use; related models can look similar while using different ranges, air sources or operating modes.

Specification or function	Current model
Power Supply	110V/220V
Compressed Air Flow	>1~2m³/min
Dry lce Volume	7.5kg
Dry lce Particle State	3mm
Air Supply Pressure	0.3~1.0Mpa
Dry lce Blasting Amount	0~3.2Kg/min

Stay inside both limits: the tool’s rated range and the vehicle or component’s permitted test range. When they differ, the lower applicable limit is the boundary. Do not infer a missing gauge, adjustment, mode or protection feature from a higher model in the same series.

How to use the HTS828

Step 1: Confirm the HTS model, target and operator controls

Identify the installed HTS818 or HTS828, its data plate, blast gun, pellet hopper, air treatment, hoses, grounding or bonding provisions and emergency controls. Use only after qualified installation and training, and confirm the component, coating, seals and nearby electronics can tolerate dry-ice blasting.

Before moving on, pause and check the connection against the physical labels. A secure-looking connection can still be the wrong port, polarity, range or adapter.

Step 2: Control carbon-dioxide and blast-area hazards

Establish effective ventilation and the site's carbon-dioxide monitoring and emergency plan before loading dry ice. Isolate the bay, keep unprotected people out and use the required face, hearing, hand and body protection. Dry ice can cause cold burns and sublimated gas can displace oxygen without a visible warning.

Step 3: Secure, isolate and cool the vehicle or component

Switch the vehicle or removed component off, prevent movement and let unsafe hot surfaces cool. Protect open intakes, electrical connectors, delicate sensors, polished finishes and any passage where loosened debris must not enter. Confirm how removed contamination will be captured.

Step 4: Inspect air supply and machine condition

Verify clean dry compressed air within the exact machine requirement, drain the site's air treatment as instructed and inspect the gun, nozzle, hose, hopper, seals and controls. Do not operate with damaged pressure parts, moisture blockage, an unreadable gauge or a defeated interlock.

Step 5: Load approved dry-ice media

Wear insulated gloves and eye or face protection, use the pellet form and quality specified for the exact HTS model and load only the amount needed for the planned task. Keep water, metal, stones and degraded clumps out of the hopper and never reach into a feed mechanism.

Step 6: Set a conservative starting combination

Choose the nozzle, air pressure, dry-ice feed and working distance from the delivered instructions and the target material. Start at the least aggressive approved setting; pressure, media flow, angle, distance and dwell time work together, so increasing one can damage a sensitive surface.

Step 7: Run a controlled test spot

Aim only inside the contained work zone, maintain secure footing and make a brief pass on a small representative area. Stop and inspect for coating lift, surface change, seal damage, debris migration or excessive noise before extending the process.

Step 8: Clean with moving overlapping passes

Hold the gun by its intended grips, keep hoses clear and move in steady overlapping passes rather than dwelling in one place. Work from a known clean boundary toward the collection area, adjust only one parameter at a time and stop if pellets, air or contamination escape the controlled zone.

Step 9: Inspect progress and protect the restored system

Pause periodically, isolate the trigger and inspect under good light. Remove displaced debris using the approved capture method, verify that ports and connectors remain protected and do not blast until a surface merely looks different; the goal is controlled contaminant removal without substrate damage.

Step 10: Shut down, depressurize and clear the area

Stop dry-ice feed, follow the exact purge sequence, isolate compressed air and confirm hoses and the machine are depressurized before disassembly. Allow residual dry ice to sublimate only in a ventilated controlled location, restore covers and connectors, inspect the cleaned component and record any damage or incomplete area.

Do not end the job at the first plausible indication. Repeat or confirm the observation under the same controlled condition, then restore the vehicle connection and check for leakage, warnings or an abnormal response.

Read and verify the result

Compare the observation with known conditions, not with a single memorized number. Check whether the reading, indication or visible result is stable, repeatable and produced with the correct setup. If possible, compare a known-good point or repeat after correcting one controlled variable.

• A repeatable result at the correct connection is stronger evidence than a momentary spike or one brief indication.
• An out-of-range result can identify a direction for diagnosis, but it does not name the failed component by itself.
• A normal result at one test point does not clear every part of the system; follow the vehicle diagnostic tree.
• After a repair, repeat the same controlled test and complete the vehicle-specific functional check.

Common mistakes and care

• Dry ice can cause cold burns, and carbon dioxide can displace oxygen; use effective ventilation, monitoring and trained operators.
• Never point the blast gun at a person, live electrical equipment, an unknown substrate or an uncontained opening.
• Start with the least aggressive approved combination and verify a test spot before broad cleaning.
• Isolate compressed air and depressurize the machine before clearing a blockage or servicing any pressure component.
• Do not borrow a range, mode, connection order or interpretation rule from another model in the series.
• Do not disconnect a live electrical, pressure, vacuum or fluid connection; first return the tool and vehicle system to a safe state.
• After use, clean only as directed, keep ports capped, coil leads and hoses without sharp bends, and store the kit dry.

Frequently asked questions

Can I use the HTS828 setup from a different AUTOOL model?

No. Similar housings and accessories do not prove identical ranges, controls, power requirements or connection methods. Match the exact model first.

Does one normal result prove the system is fault-free?

No. It proves only that the tested condition was within the chosen acceptance criteria at that moment. Continue the vehicle-specific diagnostic path when the symptom remains.

What should I do when the reading is unstable?

Stop and check power, connection security, sealing, range selection, test-point suitability and vehicle state. Repeat only after the cause of instability is understood.

Final HTS828 checklist

• Exact model, permitted test point and test range confirmed
• Tool, leads, hoses, seals and adapters inspected
• Setup completed in the model-specific sequence
• Observation repeated or otherwise verified
• Vehicle connection restored with no leaks, loose terminals or open ports
• Tool shut down, cleaned and stored without trapped pressure or unsafe power

Used this way, the HTS828 supports a disciplined diagnostic decision: prepare the correct test, control the setup, verify the observation and leave the vehicle in a known safe state.