GuardAir N552B Series Operating Instructions Manual

OPERATING INSTRUCTIONS
FOR GUARDAIR STANDARD, NED AND PULSAIR™ COMPRESSED AIR-POWERED VACUUMS
Please save these instructions and the accompanying replacement
FOR YOUR SAFETY
Turn off all compressed air connections with the
compressed air source at the nearest valve. Disconnect
compressed air connections only after the compressed
air supply has been turned off and the air supply hose
vented by opening the valve on the vacuum head. NEVER
disconnect a pressurized compressed air hose.
AIR SUPPLY
An adequate supply of compressed air is essential
for the proper performance of your Guardair vacuum.
Compressed air requirements for vacuum units and
vacuum generating heads equipped with the following
Venturi types are listed below:
"Dual B" Venturi
N552B Series ..................................................................... 110 cfm
"B" Type Venturi
N551B Series, N301B Series ................................................ 68 cfm
"D" Type Venturi
N551D Series, N301D Series, N201DC, N101DC .................. 47 cfm
"S" Type Venturi
N201SC, N101SC ................................................................ 20 cfm
"M" Type Venturi
N101MC, N051MC ............................................................... 20 cfm
Please note that these requirements are for compressed
air volume, not pressure. The recommended compressed
air inlet operating pressure is 100 psi for all vacuum units.
All units will function at lower operating pressures, but
with a corresponding reduction in performance.
Units featuring a "B" or "D" Type Venturi include a
Chicago-style connector. A 3/4" ID or larger compressed
air supply hose is recommended for these models.
Units featuring an "S" Type Venturi include a 1/2"
industrial interchange male connector. A 1/2" ID
parts information for your future reference.
or larger compressed air supply hose is recommended for
these models. Units featuring an "M" Type Venturi include
a 3/8" industrial interchange male connector. A 3/8" ID
or larger compressed air supply hose is recommended for
these models.
FOR ALL MODELS: To ensure maximum performance,
clean or replace the internal filter as necessary. In
addition, clean or replace the exhaust silencer (inside
the exhaust housing) as necessary. Inspect the cover
gasket for deterioration and replace if necessary. On
all vacuum units, use of a smaller diameter air hose or
smaller size air fittings will seriously restrict performance.
Use the recommended hoses and fittings.
Be certain that the drum has no dents along the seams
and is airtight. The cover gasket under the vacuum
generating head must form a complete seal with the
top edge of the drum.
CAUTION: Drums used with Guardair vacuum generating
heads must meet the steel gauge requirements in the
table below. Thinner gauges of steel run the risk of
drum collapse.
DRUM 55 gal
GAUGE 19
REPLACING GASKETS
On 55, 30 & 20 Gallon Models, remove the gasket to be
replaced. On the new gasket, remove the protective tape
covering the adhesive, then apply gasket to lid.
On 10 & 5 Gallon Models, the lid gasket is adhered to
the lid by hot glue. The hot glue can easily be removed
with rubbing alcohol. Let the rubbing alcohol sit for one
minute, then simply peel off with a flat head screwdriver.
We recommend using hot glue when installing new gasket.
1
30 gal 20 gal 10 gal
18 18 20
5 gal
20