Checking Oil Level; Changing Oil - MasterCool 90063-2V-110-B Instrucciones De Operación

5. Do not touch the machine's hot surface during operation.
6. Do not block air outlet.
CAUTION:
To reduce the danger of electric shock, keep the pump indoors and do not expose to rain.
DANGER:
1. With a grounding socket the operating voltage is rated ±10%; Receptacle shall be well grounded, or else electric
shock may be caused. Should power cord or plug require repair or replacement, do not connect grounded wire to any
flat adapter connector. If its surface is green, with or without yellow stripe, the insulation wire is grounding wire. If
you cannot fully understand grounding instructions and have doubt whether correct grounding is made, check with a
professional electrician or service man. Do not change the structure of attached adapter connector.
2. When pulling out power plug, make sure to pull the plug rather than the wire.
3. Do not place heavy matter on power wire or let power wire be squeezed.
4. Do not use broken plug or socket.
5. Do not pull out power plug with wet hand.
6. Do not pull out, insert power plug or turn on power switch where flammable gases may be present.
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!
• Make sure the oil drain valve located below the front casing is closed before attempting to add oil.
• Remove the large oil fill plug from the top of pump and insert the oil bottle into the fill port.
• Slowly add oil until oil level rises to the top of the Oil Level Line. Do not overfill with oil!
• Replace oil fill port.
OIL CAPACITY:
3 CFM
8.5 oz. (250 ml)

2. CHECKING OIL LEVEL

• Open the gas ballast valve (small brass fitting located next to the handle) one turn.
• 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.
• If the level is low, open the intake port and run pump for 15 seconds, stop pump and observe oil level again. Add a
small amount of oil as needed.
3. GAS BALLAST VALVE
The gas ballast valve must be opened 1/4 turn for the first part of the evacuation procedure. This will help to eliminate
moisture and extend the life of the vacuum pump. After about two minutes close the valve and continue the evacuation
procedure to reach ultimate vacuum. Failure to close the valve completely during the final evacuation will result in high
vacuum reading.
During the first stages of evacuation, vapors are highly concentrated. Unfortunately, some vapors will condense into a
liquid and mix with the oil, thus reducing the oil's ability to produce a deep vacuum. The GAS BALLAST VALVE emits a
controlled amount of dry air into the pump during compression to minimize this effect and keep oil relatively clean during
the first part of the evacuation.
Periodically remove the Gas Ballast Valve Needle and clean or replace the O-ring. Clean mating surfaces and lightly coat
with vacuum pump oil before securely re-tightening.

4. CHANGING OIL

In order to reach the deep vacuum required, your vacuum pump needs clean, moisture-free oil during 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.
6 CFM
15 oz. (440 ml)
www.mastercool.com
8 CFM
19 oz. (570 ml)
12 CFM
18 oz. (536 ml)
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