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Free Ultrasonic Cleaner Guide

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A Fast, Thorough Lawn Mower Carburetor Cleaner for Mechanics

Lawnmower Carburetor Ultrasonic Cleaner

A web search on lawn mower carburetor cleaning yields info calling for time-consuming disassembly and reassembly procedures. These steps, often demonstrated by repair shop owners, slow repair cycles, often involve solvents, impact throughput, and cause customer angst waiting to get their mower. Instead an ultrasonic lawn mower carburetor cleaner produces superior results with minimum disassembly in fewer than 20 minutes while freeing mechanics to do other tasks while cleaning takes place.

How an Ultrasonic Lawnmower Carburetor Cleaner Works

Buy A4 Carburetor CleanerUltrasonic cleaners are used in a wide range of applications to remove virtually any soil or contamination by using the power of cavitation action.

In addition to plain old "dirt" they remove varnish, gums and other contaminants that deposit on a carburetor's interior parts over time.

Cavitation is the term used to describe the implosion of billions of minute bubbles when they contact the carburetor when immersed in a biodegradable ultrasonic cleaning solution. The bubbles are created by generator-powered ultrasonic transducers bonded to an ultrasonic carburetor cleaner tank.

Transducers vibrate at a frequency such as 40 kHz (40,000 cycles per second) causing the tank bottom to vibrate as a membrane, producing the bubbles.

When the bubbles implode contaminants are quickly and safely blasted away from wetted surfaces without damaging delicate carburetor parts.

Three Big Benefits of an Ultrasonic Lawnmower Carburetor Cleaner

  1. They are Fast
    Once the carburetor is placed in the cleaner basket and cleaning initiated cleaning can be completed in 25 to 40 minutes (depending on the condition). A big benefit here is that you are free to attend to other tasks. And depending on the size of your ultrasonic lawnmower carburetor cleaner you can clean more than one at a time.
  2. They are Thorough
    Cleaning bubbles are so small that they are able penetrate minute cracks, crevices and blind holes impossible to reach by hand scrubbing using brushes, conventional parts washers or aerosol sprays. These techniques may also create environmental and disposal challenges. Which leads to
  3. They are Environmentally Friendly
    Compared to solvent-based washers and aerosols, cleaning is completed in an environmentally friendly manner. No fumes, no aerosol mists, no solvents to worry about.

This is because the ultrasonic carburetor cleaning formula is a biodegradable concentrate that minimizes disposal problems.

How to Select an Ultrasonic Lawnmower Carburetor Cleaner

Ultrasonic carburetor cleaners come in a variety of sizes from bench top units to floor-mounted industrial ultrasonic cleaning machines, so you can select any size you need.

Whatever size you select it is important that the parts being cleaned are fully immersed in the ultrasonic cleaning solution. Baskets in which parts are placed have smaller diameters than the cleaning tank itself, and must be taken into account.

While you can clean several parts at the same time, take care that they do not contact each other when in the basket.

At iUltrasonic, a popular model for carburetor cleaning in small-engine repair shops is the 1.6-gallon capacity SGB-160 kit that we especially promote for this application.

A smaller unit is the 3 quart SGB 075 kit for folks with several gasoline-powered lawn and garden equipment and like to do their own maintenance.

Lawnmower and garden supply service centers handling large volumes of repairs may find the 10-gallon capacity SGB 1000 ideal to speed the cleaning of multiple lawn mower carburetors and other small engine parts.

All kits are supplied with an operating manual, recommended cleaning solution concentrate plus a handy user guide on how to clean carburetors.

How to Set Up Your Lawn Mower Carburetor Cleaning Cycle

Whatever the model and size ultrasonic carburetor cleaner you use there are steps to take before cleaning begins.

As a first step we suggest removing built-up deposits of dust, clippings and other residue on outside surfaces. This helps reduce the load on the ultrasonic cleaning solution. Then

Fill the tank half way with water and add the recommended amount of cleaning solution concentrate for a full tank.

The 2 smaller kits offered above include 2.5 liters of tec clean A4 cleaning concentrate that make 15 gallons of solution; the larger kit is supplied with 10 liters that make 60 gallons of solution.

Then continue adding water to the fill line.

Turn on the ultrasonic cleaner, set the heater to approximately 70°C, and operate the ultrasound for about 30 minutes. This mixes the solution and drives off cavitation inhibiting entrained air. Repeat this operation when preparing fresh cleaning solution.

How to Sonically Clean a Lawnmower Carburetor

Information on removing and reinstalling a lawnmower carburetor is provided the "How to" user guide shipped with your kit. What makes an ultrasonic lawnmower carburetor cleaner so effective is provided here:

Although you can clean your carburetor without any disassembly you will achieve the most thorough cleaning with partial disassembly to allow the solution into the float chamber. Remember that only surfaces that are wetted by the cleaning solution will be cleaned. Fine mesh baskets (ordered separately) can be used to hold very small parts.

Set the thermostat to 70°C. While the solution is heating, place your carburetor parts in the basket taking care that they do not touch each other.

When the operating temperature is reached lower the basket into the cleaning solution and set the timer for 20 minutes. As noted above, cleaning time depends on the condition of the carburetor and may have to be adjusted.

At the end of the cycle remove the components from the bath. If they are not clean replace them in the bath until the cleaning is complete. Then rinse them in fresh water to remove all traces of the cleaning solution and allow them to dry.

Safety note: DO NOT reach into an operating ultrasonic bath. Instead remove the basket if you want to inspect or rearrange the parts.

Cleaning Solution Maintenance Tips

While this post focuses on cleaning a lawn mower carburetors these ultrasonic cleaner kits are also perfect for removing gunk, grease, built-up road dirt and other contaminants from fuel pumps, oil pumps, brake assemblies, gears and other components without the mess and bother of manual scrubbing with solvents in wash tanks.

Common to all ultrasonic cleaning tasks is that oils that rise to the surface of the bath should be skimmed off and disposed of properly. When the solution becomes discolored or cleaning time takes longer it is time to replace it.

Drain the tank and dispose of the spent solution according to local regulations. Take the time to remove sludge that settled to the bottom of the tank. Clean the tank using a cleaning process recommended by the manufacturer.

Questions? Contact our carb cleaning experts.

Disclaimer: This advice is not provided by a licensed mechanic. Follow at your own risk. We assume no liability for any damages caused by following the advice in this article.


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