Mastercool 90066-2V-110 6 CFM VACUUM PUMP (TWO STAGE) - Manual (Page 3)

3
pump, this sludge will rust and erode internal surfaces...shortening the pump’s life.
• Care should be taken to avoid contact of oil with skin or eyes.
• OIL MAY BE HOT!
• Used oil should be properly disposed of in a leakproof corrosive-resistant container
according to local regulations.
a. After every evacuation, while the pump is warm and oil is thin, take a small sample
of oil from the drain port.
b. If the oil is contaminated, drain the oil by placing the pump on a level surface and
opening the oil drain valve. Catch the waste oil in a container and properly dispose of
it.
c. If the pump has been sitting for more than one month, the oil is considered
contaminated regardless of appearance and should be changed as outlined above.
d. To add oil, close drain, remove the oil fill cap and fill to the Oil Level Line with fresh
oil.
5. INTAKE CONNECTIONS
Replace all caps and finger-tighten. Do not use caps with damaged or missing
O-rings and always store vacuum pump with capped ports to prevent dirt and moisture contami-
nation.
6. PUMP MOTOR
The PUMP and OIL must be above 30˚F.
The line voltage must be equal to the rating on the motor nameplate ±10%.
Normal operating temperature is approximately 160˚F, which is
HOT to the touch! Line voltage
and ambient temperature will affect the normal operating temperature somewhat. Your vacuum
pump is designed for continuous duty and will run for extended periods without overheating.
The motor has an automatic resetting overload protection feature. If the motor will not restart the
pump after shut-off, it may have opened the thermal protection. Disconnect the pump from the
system, wait about 15 minutes for the motor to cool down and then try again.
RETURNING A PUMP
Please fax a request for a return authorization number to 973-252-2455.
This applies to both warranty and non-warranty service!
Pumps returned for service without a return authorization number will not be accepted.
In your fax, include your NAME, ADDRESS and PHONE NUMBER along with a detailed
explanation of the problem. We will contact you (i.e. your phone number) to discuss your
problem and determine if you have to return your pump, or if we can trouble shoot it over the
phone.
If you have to return your pump, we will issue you an RMA#. Then, please follow the
instructions below.
• Drain oil, cap all ports and place tape over the exhaust port located on the
end of the pump handle. If you fail to do this, your pump will not be accepted
and it will be returned!!!
• Use the original shipping box and inserts if available. Shipping damages are
impossible to claim on used machinery.