Mastercool 90067 7.5 CFM VACUUM PUMP (TWO STAGE) - Manual

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Instruction Manual
DEEP VACUUM PUMP
OPERATING INSTRUCTIONS
1. OIL FILL
This vacuum pump has been tested at the factory and shipped with only trace amounts of oil.
OIL MUST BE ADDED BEFORE OPERATING! Failure to add oil will damage cartridge and void
warranty!
a. Make sure the oil drain valve located below the front casing is closed
before attempting to add oil. (See ref. #4 in parts breakdown.)
b. Remove the large brass oil fill plug from the top of pump and insert the oil bottle into the fill
port. (See ref. #5 in parts breakdown.)
c. Slowly add oil until oil level rises to the top of the Oil Level Line. Do not overfill with oil!
d. Replace the oil fill plug.
CAPACITY: 2 CFM = 24 oz., 5 CFM = 18 oz.,
7.5 CFM = 24 oz., 10 CFM = 24 oz.
2. CHECKING OIL LEVEL
a. Open the gas ballast valve (small brass fitting located next to the handle) one turn. Do not
remove!
b. Start pump and run with intake port capped for about two minutes. Observe the oil level
with the pump running. The oil level in the sight glass should be even with the level line.
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DO NOT ATTEMPT TO OPERATE
WITHOUT USING OIL!!!
In order to make the best use of your investment,
familiarize yourself with the new features and operat-
ing instructions before starting pump. Routine care and
maintenance of your vacuum pump will give you years of
reliable service.
Retain shipping box and packing material for use if
factory warranty service is required.
IMPORTANT!: Use oil specifically refined for Deep
Vacuum Pumps. Use of oil not refined for Deep
Vacuum Pumps and/or operating with
contaminated oil will void warranty.
Each vacuum pump has been factory tested for CFM
and micron performance. The serial number has been
recorded. Complete and mail the warranty form immedi-
ately to validate your warranty!