MasterCool 90060 Manuel D'instructions page 3

evacuation. Dirty oil becomes a mixture of corrosive acids and water that effects the pump's ability to pull
a deep vacuum. Left sitting in the 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 OilLevel 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 contamination.
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.
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