Vacuum Tips for Best Performance
1.
Make sure motor is off and the voltage
selector switch is set to the appropriate
voltage.
2.
Remove oil fill cap on pump cover. Fill
with YELLOW JACKET
®
SuperEvac
™
Pump Oil until oil level is even with oil
level line.
3.
Make sure blank-off valve is in the open
position (vertical).
Stay clear of the oil
fill/exhaust port!
Remove intake cap
to open intake to the atmosphere and
then switch on the motor. When pump
reaches running speed, replace cap.
The vacuum indicator gauge should
read 30 inches.
4.
To check the pump’s performance,
attach a micron gauge to the 1/4” male
flare fitting, making sure that the intake
fitting is capped and the gas ballast
valve is closed. Turn on the pump. The
micron gauge will display the ultimate
vacuum reached.
5. Improve cold weather starting by
opening intake and running your pump
for 60 seconds...motor has cold weath-
er soft-start mode and may take up to
60 seconds for temperatures 0c and
below.
6. When turning pump off, open intake
fitting until vacuum indicator gauge
reads zero to break vacuum just
prior
to shut-off.
7. Disconnect pump and put cap on intake
to keep out contaminants.
8. If an extension cord is needed, refer to
the below chart for proper sizing.
6. Use the
4-in-1
Vacuum/Charge Valve &
Core Tool
(Part #18975)
to remove the
Schrader
valves
from the
system
and evacuate through unrestricted
lines for a faster and higher vacuum.
Removing Schraders saves over 30%
in time.
7. Use
two pumps
on very large systems
to reduce vacuum time. Put one of the
pumps on the low side of the system
and one pump on the high side of the
system.
1.
For the fastest vacuum, connect your
pump directly to the system. Going
through a manifold slows the job.
2.
Use as
large
a hose as possible, even
though the system has 1/4” fittings. A
1/2” or 3/8” hose allows a much faster
and more complete vacuum.
3.
Use as
short
a hose as practical to
get maximum evacuation speed. Short
hoses make evacuation faster than
longer hoses. Long hoses slow the
process.
4.
Metal hoses
are the most impervious
so will be most effective in evacuation.
5.
Evacuate through both
high and low
sides at the same time to speed evacu-
ation.
Quick Tips:
Important Steps of Initial Start-Up
5
RECOMMENDED EXTENSION
CORD SIZES
Total Extension Cord Length (feet)
25’
50’
100’
16 Ga.
14 Ga.
12 Ga.
Wire Gauge (AWG)
