3
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.
VACUUM PUMP OPERATION
WARNING:
Do not operate on systems under pressure. Damage to the pump may occur.
1. Install fully charged 18VDC battery onto the vacuum pump.
NOTE:
The battery has enough energy to run for about 45-60 minutes.
2. Check oil level in vacuum pump
3. Connect vacuum pump.
4. Open manifold valves.
5. Turn vacuum pump power switch “ON”.
6. Run vacuum pump until final vacuum level is met.
NOTE:
Do not run vacuum pump continuously for more than 2 hours.
7. Once the final vacuum level is reached, close manifold valves, turn power switch “OFF”.
ROUTINE MAINTENANCE
It is recommended to change the vacuum pump oil after 25 hours of usage. The purity of the oil will determine the final
vacuum level achieved. Always use the recommended vacuum pump oil (VPOQ / VPOP / VPOG). The oil provided with the
pump has been specially blended to maintain maximum viscosity at normal running temperatures as well as cold weather
starts.
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.
NOTE:
After every evacuation, while the pump is warm and oil is thin, take a small sample of oil from the drain port. If the
oil is contaminated, drain and replace.
NOTE:
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 below.
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 leak-proof corrosive-resistant container according to local regulations.
OIL CHANGE PROCEDURES:
1.
Be sure the pump oil is warmed up. If not warm, turn vacuum pump “ON” for 5 minutes.
2.
Make sure vacuum pump is not plugged in.
3.
Remove the oil drain cap and drain the contaminated oil into a suitable container. Tilt the vacuum pump toward the
oil drain port.
4.
Once all the oil has been drained, re-secure the oil drain cap back onto the oil drain port.
5.
Remove the exhaust / oil fill cap and add oil until it is seen in the middle of the oil sight glass. Re-secure exhaust /
oil fill cap.
TROUBLESHOOTING CHART
Condition
Possible Problem
Solution
Pump does not start
1. No power to motor
2. Power Switch to ON
1. Check battery
