Ultrasonic Cleaning of Firearms
Contents
1. An Ultrasonic Cleaner is considered the last word in firearms cleaning But there is also mystery fear and misconceptions about them One common fear is that an ultrasonic cleaner once purchased will be the wrong type for cleaning firearms And a common misconception is that you can simply drop a fully assembled handgun into an ultrasonic cleaner come back five minutes later and expect it to come out perfectly clean and ready to use Hopefully this Tips file will dispel some of the mystery How Ultrasonic Cleaners Work Ultrasonic Cleaners use high frequency sound waves to agitate a cleaning solution The sound waves are powerful enough to induce cavitation small bubbles within the cleaning solution When the bubble collapses it releases a significant amount of energy in the form of an acoustic shock wave against the surface being cleaned This action has sufficient power to overcome the particle to substrate adhesion forces loosening contaminants It penetrates blind holes cracks and irregularly shaped recesses that are difficult to clean using conventional methods Cavitation also greatly enhances the effectiveness of whatever cleaning solution is being used Choosing An Ultrasonic Cleaner Also see the Ultrasonic Cleaner Comparison Work Sheet on the last page The Manufacturer There are a lot of cheap ultrasonic cleaners out there Don t waste your money on them They are underpowered have cheap plastic housin2. 66 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Ultrasonic Cleaner Comparison Work Sheet The table below has a list of features to consider when purchasing an ultrasonic cleaner Fill in the information for each ultrasonic cleaner you are considering and it will be easier to determine which unit to choose Manufacturer Ultrasonic Power Watts Frequency kHz Number of Transducers Timer Yes No Type Digital Analog Dial Range minutes Tank Dimensions LxWxDepth Capacity gal liter Cover Yes No Cover Material Metal Plastic Basket Included Yes No Material Stainless Steel other Basket Dimensions LxWxD Basket Liner Yes No Heater Yes No Heater Power Watts Temperature Range F C Thermostat Yes No Drain Yes No SS Ball Valve Yes No Housing Sheet Metal or Plastic Lifting Handles Yes No Weight Other Included Accessories Warrantee Yrs Cost 2011 UniqueTek Inc 12 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com
3. alve Anything left behind will just contaminate the lubricating solution shortening its life It may not be possible or practical to save and reuse the cleaning solution Most aqueous cleaning solutions are concentrates so you will not be able to return them to the original container They also tend to become exhausted quickly and saving them may not be recommended Check the manufacturer s instructions Organic solvent cleaning solutions are typically used without dilution or additives so it may be acceptable to save and reuse them During use some solvents in the formulation may evaporate quickly reducing the effectiveness of the solution Again check the manufacturer s instructions One exception is UniqueTek Premium Firearms Cleaner It does not change composition due to evaporation and can be reused many times without loosing effectiveness especially if filtered when drained back into the jug TIP Use a coffee filter to filter lubricating solution or cleaning solution when returning to the jug Coffee filters are effective easy to find and cheap 2011 UniqueTek Inc 7 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Safety Keep Your Fingers Out Of The Tank Never place your fingers into the tank when the ultrasonic is turned on The ultrasonic energy can generate bubbles
4. ank each time If you are only cleaning a few small parts you can have two containers in the ultrasonic cleaner at the same time one for cleaning solution and one for lubricating solution This is also handy if your ultrasonic cleaner tank doesn t have a bottom drain The down side is that it significantly reduces the size of parts that can be cleaned It will also take a bit longer for the cleaning solution to come up to temperature NOTE Always place indirect cleaning containers in the wire basket and not directly on the bottom of the tank NOTE Always turn off the ultrasonic before removing the containers from the tank When you lift the containers out the water level may drop below the minimum level and could damage the transducer TIP To maximize the efficiency of coupling ultrasonic energy into the container adjust the cleaning solution level so it is the same as the water level in the tank TIP Use wide mouth jars with screw on lids for indirect cleaning containers When finished you can screw on the lid to preserve the cleaning or lubricating solutions for reuse During cleaning leave the lids off or on loosely to minimize evaporation so that pressure can t build up inside the jars 2011 UniqueTek Inc 5 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Degassing Ca
5. as the cleaning solution Not necessary if previously done to this batch of cleaning solution or lubrication solution Steps For Ultrasonic Cleaning A Firearm Step 1 Field strip the firearm Step 2 Swab the bore with a good defouler and allow to soak for a few minutes then run a bore brush several passes through Step 3 Place the firearm in the basket Be sure to also use a plastic tray to prevent direct contact between the firearm and metal basket Step 4 Lower the basket into the ultrasonic cleaner bath Step 5 Set cleaning time 5 to 30 minutes depending on how dirty the firearm is and turn on ultrasonic cleaner Step 6 Check firearm periodically for cleanliness Step 7 When clean turn off ultrasonic and heater Step 8 Lift the basket from the tank Allow a few seconds for excess cleaning solution to drain back into the tank Step 9 Rinse each part with water or whatever is recommend If water is recommended using warm water will speed drying If you are using a solvent based cleaning solution rinsing may not be required and you may only need to set the firearm aside to air dry Step 10 Blow off as much water as possible with an air compressor or canned air Pay special attention to confined spaces where water may be trapped Step 11 ALWAYS IMMEDIAELY LUBRICATE FIREARMS AFTER CLEANING See following Section Steps For Lubricating A Firearm If you are using a single tank ultrasonic system you will need to remove the
6. cleaning solution clean the tank and replace it with lubricating solution If heating is required allow lubricating solution to come to temperature before proceeding Step 1 Ensure that the firearm has been thoroughly rinsed and as much excess water as possible has been removed Step 2 Place the firearm in the basket Be sure to use a plastic tray to prevent direct contact between the firearm and metal basket Step 3 Lower the basket into the ultrasonic cleaner bath Step 4 Set cleaning time to 5 minutes and turn on ultrasonic cleaner Step 5 Turn off ultrasonic and heater if used Step 6 Lift the basket from the tank Allow a few seconds for excess lubricating solution to drain back into the tank Continued on next page 2011 UniqueTek Inc 10 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Step 7 Wipe down all parts with a clean cloth to absorb excess lubricating solution Do not wipe excessively as you want to leave a thin coating of lubricant on the parts Use an air compressor or canned air to blow excess lubricating solution out of confined spaces Reassemble Firearm Step 1 Thoroughly inspect all parts As they will be very clean now is the best time to inspect for wear cracks or other problems and take corrective action Step 2 Lubricate all points as recommend
7. e Be very careful with your selection as cleaners can contain acids ammonia or other harsh chemicals that could potentially damage gun finishes The best recommendation is to call the manufacturer and ask for a recommendation and make sure to tell them exactly what you are cleaning Keep in mind that you may need more than one cleaning solution to cover all of your needs e g one for cleaning firearms and a different one for cleaning brass Aqueous Cleaning Solutions Aqueous water based cleaning solutions are currently the most widely used type in industrial applications They usually come as a concentrate that you mix with water before use and contain surfactants detergents corrosion inhibitors and other additives They can be formulated to be alkali acidic or neutral pH depending on the contamination you are trying to remove and the substrate material Most modern aqueous cleaning solutions are more environmentally friendly than solvent based cleaners Always use distilled or reverse osmosis water and not tap water Tap water contains far too many minerals that you don t want in the mix Organic Solvent Cleaning Solutions Organic Solvent cleaning solutions are less popular due to environmental concerns as well as concerns for their flammability You do have to be careful with solvents as most small ultrasonic cleaners are not explosion proofed Even without a heating element the ultrasonic energy will cause some heating of the solven
8. ed by the firearm manufacturer using the appropriate lubricants The lubricating solution alone may not be the best choice for all lubrication points Step 3 Complete firearm assembly according to the manufacturer s instructions Cleaning Rifles and Shotguns You will undoubtedly have noticed that have not mentioned anything about cleaning rifles or shotguns That is because ultrasonic cleaners large enough to immerse an entire barrel are too expensive and take up too much space for the average gun owner However all of the information contained herein is applicable to ultrasonic cleaning of long guns TIP Although you can t immerse an entire barrel receiver assembly in an ultrasonic cleaner tank sized for cleaning handguns you can suspend the barrel above the tank so that just the receiver is fully immersed That leaves only the bore to be cleaned using conventional cleaning methods Final Thoughts Choosing the right ultrasonic cleaner for your needs and then using it to properly and safely clean your firearms may sound like a daunting task But with a little knowledge and preparation the selection process will be easier and you will find ultrasonic cleaning to be an efficient and effective way of protecting your firearms investment Simple Green is a trademark of Sunshine Makers Inc Premium Firearms Cleaner and Time Out are trademarks of UniqueTek Inc 2011 UniqueTek Inc 11 Rev 2 12 11 UniqueTek Inc Ph 480 507 08
9. ely clean a fully assembled firearm There are just too many confined spaces for the cleaning solvent to easily flow through and for residues to be flushed out In particular cleaning between tightly fitted parts e g a pivot hole and shaft is difficult even for an ultrasonic cleaner That said there are times when you either can t disassemble something any further or don t want to risk further disassembly In that case you should be prepared to put that part through longer cleaning cycles and or repeated cleaning cycles to achieve complete cleaning Obviously you must unload and remove all ammunition And you must remove wood grips soft rubber grips optics and any other parts that are not compatible with either the cleaning solution or with ultrasonic cleaning in general But you should also consider such things as Tritium night sights If there is any doubt a call to the manufacturer is recommended Field strip at minimum If further disassembly is possible it can significantly shorten the ultrasonic cleaning time and also make it much easier to ensure that all the cleaning solution has been rinsed away and the parts are completely dry before lubrication It is also a good idea to detail strip the slide periodically for a more thorough cleaning and inspection On many firearms detail stripping the frame can be too difficult to be practical Just disassemble as far as is practical be thorough with the clean rinse and lubrication steps and
10. gs and covers and effective cleaning action is limited toa small zone directly over the ultrasonic transducer Look for an ultrasonic cleaner from a well known and established manufacturer They can recommend one to suite your exact needs Be prepared to pay for what you get A high quality ultrasonic cleaner is an investment as important as the firearms you intend to clean and will last for many years Ultrasonic Transducers The ultrasonic transducer is the part that generates ultrasonic energy and couples that energy to the tank The transducer is usually round and bonded to the bottom of the tank Depending on the tank size and ultrasonic power in Watts there may be multiple transducers In fact multiple transducers is a desirable feature Multiple transducers spaced out along the tank bottom ensure more uniform cleaning and fewer dead spots in the tank This adds cost but it is well worth it in the long run Look for industrial grade transducers as they are stronger and more reliable Ultrasonic Frequency Ultrasonic frequencies usually range from 20 400 kHz Most ultrasonic cleaners marketed as gun cleaners are 40kHz It seems counter intuitive but low frequencies yield more vigorous cleaning 2011 UniqueTek Inc i Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com action
11. in your joints and veins and is also bad for your bones Wear Gloves The cleaning solution s you use may recommend that you avoid skin contact Wearing gloves will protect your hands from the cleaning solution but not from the ultrasonic energy So don t be tempted to reach into the tank with the ultrasonic on even when wearing gloves Wear Safety Glasses Wear safety glasses to avoid getting cleaning solution or lubricating solution into your eyes Ultrasonic cleaners shouldn t generate any splashing on their own but accidentally dropping a part into the tank will And blowing off parts can cast a lot of mist into the air Ventilation Good ventilation is always a good idea but may be essential depending on the cleaning solution s you choose Always read the manufacturer s instructions MSDS You should always request the MSDS Material Safety Data Sheet for each of the cleaning and lubricating solutions and read them prior to use The MSDS contains detailed information on the chemicals in each solution as well as safety and first aid information 2011 UniqueTek Inc 8 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Preparing A Firearm For Ultrasonic Cleaning In a word disassemble You simply cannot expect any cleaning method not even an ultrasonic cleaner to effectiv
12. is more resistant to the ultrasonic cleaning chemicals Timer A built in timer is a very good feature to look for With a timer you can turn your attention to other tasks such as preparing the next firearm for cleaning and not have to watch the clock 2011 UniqueTek Inc 2 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com TIP If your ultrasonic cleaner doesn t have a built in timer a simple kitchen timer will get the job done but will not automatically shut off the ultrasonic cleaner A countdown power timer e g UniqueTek s Time Out Timer will give you to the minute control and assurance that you can t get distracted and accidentally leave the ultrasonic turned on Heated Tank A heated tank is essential Many cleaning solutions require elevated operating temperatures to be effective One commercial cleaning solution I ve used requires a temperature of 150 F 65 C and cleaning activity is markedly reduced below that temperature Make sure the heater is capable of reaching the temperature required for the cleaning solution you choose Although the ultrasonic energy alone will cause some heating of the cleaning solution it is slow and may never reach the desired operating temperature The additional cost for a heated tank is not that much more and worth every penny A hea
13. it will still come out cleaner that what you could accomplish without ultrasonic cleaning Semi Automatic Pistols e Field strip according to manufacturer s instructions e Remove grips if possible Revolvers e Remove grips e Place hammer in cocked position when possible e Remove side plate e Remove cylinder and separate cylinder from crane if applicable e Place a small spacer a spent cartridge case works under the extractor star TIP Swab the bore with a good defouler allow to soak for a few minutes then run a bore brush several passes through This will reduce ultrasonic cleaning time and yield improved results over ultrasonic cleaning alone To save time his can be done while waiting for the cleaning solution to come to temperature 2011 UniqueTek Inc 9 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Preparing Ultrasonic Cleaner For Cleaning Firearms Step 1 Check that ultrasonic cleaner tank is clean Wipe out any residue Step 2 Fill ultrasonic cleaner tank with cleaning solution Step 3 Turn on heater and set to recommended temperature Allow enough time for cleaning solution to come to temperature If the ultrasonic cleaner doesn t have a display that shows that actual temperature use a thermometer Keeping the tank covered will speed up heating Step 4 Deg
14. ng solution not oil The lubricating solutions recommended for ultrasonic gun cleaning are specially formulated for this purpose They are mostly oil but also contain water displacement additives and corrosion inhibitors that are essential if you use an aqueous cleaning solution or any solution that requires a water rinse They are also low viscosity so that they can easily penetrate into small pores in the metal Check the instructions to see if the one you use is to be used at room temperature or heated Lubricating solutions are generally used at full strength Never dilute unless the manufacturer specifically recommends it 2011 UniqueTek Inc 6 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com TIP The more thoroughly you dry parts before immersing in lubricating solution the more times the lubricating solution can be reused Recover And Reuse Chemicals Recover and store the lubricating solution from the tank Since it is used straight from the jug you can simply return it to its original jug for later use Remember the cleaner you keep the lubricating solution the more times it can be reused Lubricating solution can be reused many times if it is kept clean TIP If your ultrasonic cleaner has a drain be sure to thoroughly purge cleaning solution and dirt from the drain tube and v
15. s deep enough Don t forget that the wire basket see next section will be slightly smaller than the tank dimensions Wire Basket Ultrasonic cleaners should always come with a wire basket usually stainless steel that fits into the tank The basket is essential as it elevates parts off the tank bottom Placing anything directly on the bottom of the tank prevents the ultrasonic transducers from oscillating and will damage the transducers You will notice that the basket touches the tank at only a few points usually in the far corners of the tank well away from the ultrasonic transducers Some baskets hang from the rim of the tank and never touch the bottom at all Avoid ultrasonic cleaners with a plastic basket or no basket at all NEVER operate the ultrasonic cleaner with anything lying directly on the tank bottom ALWAYS use the wire basket To protect the finish on your guns from rubbing against the metal basket some ultrasonic cleaners come with a plastic plate or it may be available as an option that lies in the bottom of the basket TIP Misplaced the plastic plate A piece of fiberglass mosquito screen laid in the bottom of the basket will work in a pinch The ultrasonic energy will degrade it over time but it is cheap and easily found If you want a longer lasting solution you can buy polyethylene screen from McMaster Carr http www mcmaster com wire screens cn8fkx It will survive the ultrasonic cleaning action longer and
16. t especially during long cleaning cycles Adequate ventilation should be provided and the tank should be kept covered at all times to minimize evaporation You also need to be more careful about materials compatibility with solvent cleaning solutions as ultrasonic cleaners can greatly accelerate their attack on plastics A solvent that you used successfully for just a spray n wipe cleaning may completely melt the same material when used in an ultrasonic cleaner personally prefer solvent based cleaning solutions versus aqueous cleaners due to concerns about corrosion Water and steel just don t go together in my mind Solvent based cleaners readily evaporate after the parts are removed from the cleaner without rinsing and drying However you still MUST LUBRICATE IMMEDIATELY after cleaning to prevent rust Keep in mind that any cleaning solution that will attack gun finishes or plastic parts will attack faster in an ultrasonic cleaner So be very careful especially with home grown cleaning solutions For example Simple Green will corrode aluminum when used in ultrasonic cleaners NEVER use gasoline or other highly flammable materials as a cleaning solvent in any ultrasonic cleaner even one that has an explosion proof rating 2011 UniqueTek Inc 4 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales w
17. t and use it as a place to drain and blow off the parts after removing from the ultrasonic cleaner Any pan about the size of a cafeteria tray is the right size for most firearms and parts that will fit into the tank In fact an old cafeteria tray if you can find one is good Try a restaurant supply outlet as they usually have heavy duty products at reasonable prices Lubricate Immediately After Cleaning Ultrasonic cleaners are so efficient they clean out the microscopic pores in the metal To prevent rust you must ALWAYS IMMEDIATELY LUBRICATE all parts after ultrasonic cleaning It doesn t matter if you use an aqueous or solvent based cleaner The up side of this is that lubricants tend to get a better grip on the metal and work better since the metal pores aren t contaminated with old lube carbon grit etc Many professional gun cleaning services use two ultrasonic cleaners one filled with cleaning solution and one filled with a special lubricating solution The ultrasonic action helps get the lubricating solution deep into the metal pores You can easily accomplish the same thing with a single ultrasonic cleaner by using the indirect cleaning technique and filling one container with cleaning solution and a filling a second container with lubricating solution If your tank is too small for this you will need to drain the cleaning solution and refill the tank with lubricating solution You will notice that said lubricati
18. ter with thermostatic temperature control is even better as it will maintain a constant temperature Bottom Drain A bottom drain is handy when it comes time to change cleaning solution but you will pay a premium for this feature Bottom drains are not a common feature on tabletop ultrasonic cleaners Up to about 1 5gal 6L capacity they are not too heavy to just pick up and pour out Some even come with handles on the side to make this easier A bottom drain can have drawbacks A drain is a potential leak waiting to happen A valve that leaks or just doesn t get closed tightly can drain a tank overnight Look for a drain tube that is welded to the tank a gasket will eventually leak and that has a stainless steel ball valve A poorly designed drain can also dampen the ultrasonic energy in that immediate area Tank Cover A tank cover is essential and most ultrasonic cleaners will come with one Keeping the tank covered greatly minimizes evaporation of cleaning solution and minimizes fumes Look for covers and tanks made from stainless steel as it is more sturdy and chemical resistant Plastic covers should be avoided as they are handled frequently and thus prone to breakage TIP If you have a cleaner without a cover some heavy duty aluminum foil will get the job done assuming the cleaning solution is compatible with aluminum In the long run you may want to get a cover made at a local sheet metal fabricator shop Materials of Cons
19. than high frequencies In fact low frequency ultrasonic cleaners can be too rough on more delicate surfaces High frequencies produce cavitation bubbles of smaller size that are better able to penetrate small cracks and blind holes But cavitation bubbles at all frequencies are very small Cavitation bubbles generated by a 40kHz ultrasonic cleaner are about 164um in diameter a human hair is roughly 90um diameter So even at 40kHz the cavitation bubbles are small enough to enter the smallest places in gun parts Ultrasonic Power and Tank Capacity Ultrasonic power and tank capacity are closely related Ultrasonic cleaners are available with a wide variety of power ratings in Watts and tank capacities Although the amount of power you need is dependent on a number of factors tank capacity is probably the largest In a larger the tank the ultrasonic energy is dispersed across the greater volume reducing the power density To completely immerse a full size handgun will require a tank with approximately 4 to 6 Liter 1 0 to 1 5 Gallon capacity At this tank volume 150 watts is typical with 200 watts as an available option on some units Less than 150 watts on this size tank will provide slow cleaning Keep in mind that tank dimensions may be more important than tank capacity A tank sized so that you can lay your handgun frame flat is preferred But don t forget that you can also prop it vertically if the tank is too narrow provided the tank i
20. truction High quality ultrasonic cleaners will have a metal housing not plastic They will also be heavy since heavy duty power supplies industrial grade transducers sheet metal housings and associated hardware all add weight You can expect a high quality cleaner with 1 gallon capacity to weigh in at close to 10 pounds Manufacturer s Warrantee Don t forget to ask about the manufacturer s warrantee especially if you don t buy direct from the manufacturer Warrantee terms vary greatly from one manufacturer to the next 2011 UniqueTek Inc 3 Rev 2 12 11 UniqueTek Inc Ph 480 507 0866 574 E Alamo Drive Suite 60 Fax 480 507 0867 Email info uniquetek com Chandler AZ 85225 Toll Free 855 507 0866 Web Sales www uniquetek com Ultrasonic Cleaning Solutions The choice of cleaning solution will greatly affect the results you will obtain with any ultrasonic cleaner and the correct cleaning solution is very dependent upon the item being cleaned Water alone is not a very efficient cleaning solution unless it contains surfactants detergents or other additives Water based cleaning solutions are also somewhat more limited in their ability to remove contaminants by chemical action alone compared to solvent solutions e g for parts covered with thick grease There are many industrial ultrasonic cleaning solutions and virtually every ultrasonic cleaner manufacturer has its own line of products There are far too many to list her
21. vitation bubbles are not filled with air but rather with vapor from the cleaning solution In fact dissolved gasses reduce the power and effectiveness of ultrasonic cleaners so running the ultrasonic cleaner for a short period to degas the solution is often recommended During degassing you can often see bubbles form and rise to the surface Once a cleaning solution or lubricating solution has been degassed it will not need degassing again until it is changed or fresh cleaning solution is added to make up for evaporation Check the ultrasonic cleaner user manual and the cleaning solution instructions for how long to degas It can take anywhere from just a few minutes to 30 minutes depending on the ultrasonic cleaner and cleaning solution Removing Excess Cleaning Solution From Parts After cleaning any residual cleaning solution or rinse water should be thoroughly removed from all parts Towel drying with clean cotton towels is a good start Compressed air and a blow drier for hair are great accessories to assist with this task Canned air is ok for smaller jobs and places you don t want much force but a small air compressor can achieve higher pressure greater volume of air and won t run out just when you need it The hair dryer warms the parts and greatly speeds drying CAUTION Remember to wear safety glasses especially when blowing off parts TIP Buy a cookie sheet a 1 2 Sheet Pan is 18 x13 and place an old bath towel on i
22. ww uniquetek com More Things To Know About Ultrasonic Cleaning NEVER Operate When Empty Or Low Never run an ultrasonic when empty or low not even for just a few seconds This can instantly damage the ultrasonic transducer With the tank empty there is no place for the ultrasonic energy to go It is also generally not recommended to run the ultrasonic cleaner with no parts in the tank Always keep the cleaning solution within the recommended level Many ultrasonic cleaners have minimum and maximum fill levels marked directly on the tank wall Always Use The Basket Always use the wire basket to elevate parts off the tank bottom Never place anything directly on the bottom of the tank as this prevents the ultrasonic transducer from oscillating and will damage the transducer Also use the basket to support jars of cleaning solution and lubricating solution when doing indirect cleaning Indirect cleaning is described in the next section Direct Versus Indirect Cleaning Direct cleaning is when you fill the ultrasonic cleaner tank with cleaning solution Indirect cleaning is when you fill the tank with plain water then place a smaller container filled with your desired cleaning solution in the basket Indirect cleaning can save a lot of cost in cleaning solution as you don t need to fill the entire tank It can also saver a lot of time if you change cleaning solutions frequently as you will not need to drain the t
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