Pressure Rollers; Dust Collection - Grizzly g9983 Owner's Manual

pressure rollers

the pressure rollers have been set at the factory,
but for increased personal safety, you should
verify that they are below the sanding belt.
always keep the pressure rollers set below
the level of the sanding roller. if the pres-
sure rollers are even, or higher than the
sanding roller, the workpiece Will be pro-
pelled from the sander at a high rate of
speed. this situation could cause serious
personal injury.
to check the feed pressure:
1.
place a piece of scrap wood of uniform thick-
ness across the conveyor so it spans both
front and rear pressure rollers at the same
time.
2.
Make sure the platen is even with the sanding
belt rollers.
3.
With the air pressure connected, the sanding
belt installed, and the belt tension switch on,
slowly raise the conveyor and verify that the
board touches both pressure rollers before it
touches the sanding belt.
— if the board does not touch both pressure
rollers before it touches the sanding belt,
then the pressure rollers must be adjusted
before operation. see section 8: service
adjustments for step-by-step instructions
on how to do this.
Model G9983 (Mfg. Since 8/09)

dust collection

this machine creates substantial amounts
of dust during operation. breathing air-
borne dust on a regular basis can result in
permanent respiratory illness. reduce your
risk by wearing a respirator and capturing
the dust with a dust collection system.
recommend cfm at dust port: 1200 cfm
do not confuse this CFM recommendation with
the rating of the dust collector. to determine the
CFM at the dust port, you must consider these
variables: (1) CFM rating of the dust collector,
(2) hose type and length between the dust col-
lector and the machine, (3) number of branches
or wyes, and (4) amount of other open lines
throughout the system. explaining how to cal-
culate these variables is beyond the scope of
this manual. Consult an expert or purchase a
good dust collection "how-to" book.
the dust collection port is located on top of the
sander and measures 5" in diameter. it will be
necessary to attach a 5" dust collection pipe over
this port before operation. if you have rigid ducts
in your dust collection system, we recommend
that you connect the ducts to your sander with
flexible hose. the flex-hose easily attaches with
a 5" hose clamp and it absorbs any movement
that may occur during operation. please refer to
the grizzly catalog for current price and ordering
information.
-19-