Grizzly G0703 11 - Manual (Page 20)

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Model g0703 (Mfg. since 8/09)
SECTiON 4: COLLECTiON SYSTEM
the Model g0703 is designed to collect dust from
one machine at a time. this can be accomplished
by either connecting it to one machine at a time
or by connecting it to multiple machines and using
blast gates to control which branch is active.
the Model g0703 works quite well as a point of
use dust collector. the wheels make it easy to
move around the shop near the machine being
used.
Tips for Optimum Performance
• Avoid connecting this machine to any other
power supply than one rated for 30-amp,
110-volts, or 15-amp, 220-volts. if you do,
you may have to install the included inlet
restrictor which will prevent circuit breaker
tripping at the cost of lower dust collector
performance.
• Avoid using more than 10' of flexible hose on
any connection.
• Keep ducts between the dust collector and
machines as short as possible.
• Keep ducting directional changes to a mini-
mum. the more curved fittings you use, the
greater the loss of overall pressure.
• gradual directional changes are more effi-
cient than sudden directional changes (i.e.
use 45° elbows in place of 90° elbows when-
ever possible).
• the simpler the system, the more efficient
and less costly it will be.
System Setup Duct Material
you have many choices regarding main line and
branch line duct material. For best results, use
metal duct for the main line and branch lines, then
use short lengths of flexible hose to connect each
machine to the branch lines.
plastic duct is also a popular material for home
shops. however, be aware that there is a fire or
explosion hazard if plastic duct material is used
for dust collection without being grounded against
static electrical charge build-up. this topic will be
discussed later in this section. Another problem
with using plastic is that it is less efficient per foot
than metal.
Metal Duct
Advantages of metal duct is its conductivity and
that it does not contribute to static electrical
charge build-up. however, static charges are still
produced when dust particles strike other dust
particles as they move through the duct. Since
metal duct is a conductor, it can be grounded quite
easily to dissipate any static electrical charges.
figure 23. Examples of metal pipe and
components.