Call Us: 1-931-738-3611

Tool Care

Tool Care

Cleaning / Maintenance / Troubleshooting

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Steps to Clean

Dealing with contaminated coolant is always a concern. Identify on the front end any contamination issues prior to coolant removal. If contaminated coolant has been removed into the Coolant Extractor, we recommend the following steps to clean the system.

  1. Mix 1/2 cup low foam detergent with 15 gallons of water (preferably hot water).
  2. Extract the detergent and water into the Coolant Extractor. Use the provided hand valve and wand attachments.
  3. Once the Coolant Extractor is filled, continue to extract air into the tank to agitate the cleaning mixture inside.
  4. When finished, pressurize the system and remove the cleaning mixture. The fluid will contain contaminates when removed, so please dispose mixture properly.
  5. Rinse out the extractor while removing the plug in the bottom of the tank and spraying water inside.

Proper Maintenance and Care

Use of Pressure Regulator

The 2V-700 is designed to be operated with shop air regulated at 90 PSI. An inline regulator attached to the manifold will work fine. This will ensure years of trouble free and reliable operation of your new coolant service tool. Prolonged pressures above 90 PSI cause the o-rings to expand and become damaged by the internal porting in the manifold and results in a loss of the ability to pull a vacuum.

We provide a free o-ring kit along with instructions to get your 2V-700 operating properly. It takes about 5 minutes to do the repair.

Damage to Hoses and Couplings

Periodically inspect the service hose for chaffing and cuts. Damage such as cuts and hose collapses cause the 2V-700 to not function properly. Also inspect the quick disconnect fitting at the end of the service hose for ease of connectivity to the cooling system.

Troubleshooting

Loss of Vacuum

There are a couple reasons that can cause the 2V-700 to not function as it did when it was new. The first and most common is damage to the o-rings caused by exceeding the air input pressure above the recommended 90 PSI. A pressure regulator is required on the input to maintain a proper input pressure (90 PSI). At higher pressures the o-rings expand and are damaged by the internal porting in the manifold and a loss of the ability to pull a vacuum. We provide a free o-ring kit along with instructions to get your 2V-700 operating properly. It takes about 5 minutes to do the repair.

The other causes are air leak related. There may be a hole in the service hose or a leaking quick disconnect fitting. There may be a loose fitting around a part on the tool itself. To check for air leak, pressurize the 2V-700 to around 25 PSI and using soapy water, spray the connections on the tool. If there is a leak you will see bubbles around the leak. Tighten as necessary or replace damaged parts.

Slow Fluid Flow

If your 2V-700 experiences a slowdown of coolant transfer (2.5 gallons per minute normal flow rate), the probable cause is a defective quick disconnect fitting. This is especially true with the Rectus-TEMA fitting used as the Volvo /Mack style QD fitting. Mineral deposits and other contaminates can lodge in the QD fitting causing it to be restricted. To test your 2V-700 just draw some coolant or water into the tool then attached the hand valve assembly and pressurize the tool to 25 PSI. Squeeze the hand valve handle and monitor the flow rate.

Another cause could be a leak in the 2V-700 system. To test that, pressurize the tank and see if it will hold the pressure for 5 minutes or so. If it won’t, use soapy water to spray on the connections that could be leaking and look for bubbles. If bubbles are found, tighten fittings or parts as needed.

After these tests you should have confirmed the cause for the slow operation. If a replacement QD fitting is needed, we stock them.

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A Dunn & Bybee Tool Company
Located at 635 Industrial Drive,  Sparta, Tennessee  38583
E-Mail all inquiries to
Phone Charles Sams at (931) 738-3611
Fax: 931-738-3610