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Operating Instructions
Cast Iron Series
Introduction (Continued)
ing. Personal injury or property dam-
age could occur from contact with mov-
ing parts.
Tank Drain Valve - This valve is locat-
ed on the bottom of the tank. Use this
valve to drain moisture from the tank
daily to reduce the risk of corrosion.
Reduce tank pressure below 10 psi,
then drain moisture from tank daily to
avoid tank corrosion. Drain moisture
from tank(s) by opening the drain valve
located underneath the tank.
Assembly
WARNING
!
Disconnect, tag and lock out
power source, then release all
pressure from the system before
attempting to install, service, relocate
or perform any maintenance.
OIL DRAIN EXTENSION
Some models include an oil drain
extension and cap (found with the
owner's manual). Install the oil drain
extension and cap before adding oil
to the pump. To avoid oil leaks, it is
highly recommended to apply Teflon
tape or thread sealant to the threads
on each end of the oil drain extension.
Screw the cap onto one end of the
extension. Remove the oil drain plug
from the base of the pump and install
the oil drain extension (See Figure 2).
Dipstick
Breather
Dipstick
and Oil
Fill
Cap
Oil Drain
Extension
Figure 2
LUBRICATION
CAUTION
!
Follow lubrication instructions before
operating compressor.
Ensure oil drain extension has been
installed (if included) then remove the
dipstick/ breather and fill pump with oil
according to the chart. Use SAE30 indus-
trial grade compressor oil or full synthetic
motor oil like Mobil 1 10W30. Do not use
regular motor oils. They will cause
deposits to form on the pistons and
valves.
Model
See Model Number on Tank Label
VT6314
VT7615
If the compressor is run under humid
conditions for short periods of time, the
humidity will condense in the crankcase
and cause the oil to look creamy. Oil
contaminated by condensed water will
not provide adequate lubrication and
must be changed immediately. Using
®
contaminated oil will damage bearings,
pistons, cylinders and rings and is not
covered under warranty.
NOTE: To avoid water condensation in
the oil, periodically run the compressor
with tank pressure near 120 psi for sin-
gle stage compressors by opening the
drain cock or air valve connected to the
tank or hose.
Max.
Fill
Run the pump for an hour at a time at
Line
least once a week or more often if the
Low
condensation reoccurs.
ADDITIONAL HARDWARE NEEDED
Purchase necessary regulator, plumbing
and filtration devices to attach to com-
pressor. Make sure pressure ratings of
added components exceed that of the
compressor.
Installation
LOCATION
It is extremely important to install the
Drain
compressor in a clean, well ventilated
area where the surrounding air temper-
ature will not be more than 100°F.
A minimum clearance of 18 inches
THIS UNIT
between the compressor flywheel or
CONTAINS NO OIL!
fan and a wall is required because
objects could obstruct air flow.Do not
locate the compressor air inlet near
steam, paint spray, sandblast areas or
any other source of contamination.
TANK MOUNTING
The tank should be bolted to a con-
crete floor or on a separate concrete
foundation. Vibration isolators should
be used between the tank leg and the
floor (part number MP3445, available
separately). When using isolator pads,
Oil Capacity
do not draw bolts tight. Allow the pads
(approx.)
to absorb vibrations. A flexible coupling
should be installed between the tank
and service piping. The air compressor
12 oz.
should be mounted on a flat, even
22 oz.
surface.
skids for mounting the compressor.
INSTALLING A SHUT-OFF VALVE
A shut-off valve should be installed on
the discharge port of the tank to con-
trol the air flow out of the tank. The
valve should be located between the
tank and the piping system.
between the compressor pump and the
tank. Personal injury and/or equipment
damage may occur.
PIPING
pressed air. Serious injury or death
could result.
Any tube, pipe, or hose used must have
a pressure rating higher then 150 psi.
Minimum recommended pipe size:
Larger diameter pipe is always better.
ELECTRICAL INSTALLATION
All wiring and electrical con-
nections must be performed by
a qualified electrician. Installations
3
Never use the
CAUTION
!
wood shipping
Never install a
WARNING
!
shut-off valve
Never use plastic
WARNING
!
(PVC) pipe for com-
- up to 50 feet long 1/2"
- greater than 50ft. long 3/4"
WARNING
!
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