Cleaning / Maintenance / Inspection / Troubleshooting
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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.
- Mix 1/2 cup low foam detergent with 15 gallons of water (preferably hot water).
- Extract the detergent and water into the Coolant Extractor. Use the provided hand valve and wand attachments.
- Once the Coolant Extractor is filled, continue to extract air into the tank to agitate the cleaning mixture inside.
- When finished, pressurize the system and remove the cleaning mixture. The fluid will contain contaminates when removed, so please dispose mixture properly.
- Repeat the steps if needed to thoroughly clean the Tool. When the Coolant Extractor is clean, complete the cleaning procedure by following the same steps to rinse and empty the Coolant Extractor with clean water only.
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.
Tool Inspection Protocol
GENERAL OVERALL INSPECTION:
- Tool should be relatively clean with readable Gauge & Controls and clean front Sight Tube
- Tool should roll freely, and wheels securely fastened to the Tool
- The top tool handles should be free of splits or tears
- Inspect Service Hose for any cracks, breaks, or tears and ensure all hose clamps are secure
- Inspect Coupling at end of service hose for any damage, dirt, or blockages
- Inspect front Site Tube and top & bottom connections
- Any accessories should be stored in their tool holder location
- Inspect accessories for damage, dirt, or blockages
- Tilt tool down onto its handles and inspect all the connections at the bottom of the tank.
- With Tool’s Control in the OFF position, connect shop air source to Tool’s Air Pressure Regulator
- Pressurized tank to 30 PSI, hold, and check for leaks
- Increase pressure above 30 PSI to check the Pop-Off Valve. The Pop-Off Valve should open & relieve a few seconds after exceeding the 30 PSI pressure
- Switch to Vacuum mode and draw down to 15 inHg, hold, and check for leaks
- Place updated inspection record label under Tool’s Accessory Tray for future reference
- Schedule next inspection for no later than one year
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.