Drum Adjustments - Grizzly G0449 Owner's Manual

Tracking
If the conveyor tracks to either side, then the
tracking must be corrected or the conveyor will
load up to one side and could rip or tear and have
to be replaced.
Replacing a damaged conveyor is a big job.
Always be careful to make sure that the belt does
not travel too far to one side or the other.
Tracking the conveyor is a balancing process that
takes patience and some trial-and-error. Usually
you must tighten the loose side (the side the belt
is tracking towards) to make the conveyor move
to the middle of the rollers, then loosen that same
side to make the conveyor stay in position. If you
adjust the bolt too much either way, then you have
to repeat the process until the conveyor rides
in the middle and stays there during continuous
operation.
To track the conveyor:
1.
Make sure the drums are perpendicular to
the feed direction (parallel with the conveyor
roller). Go to Drum Adjustments.
After verifying that the drums are perpendicu-
lar to the feed direction, continue to the next
step.
2. Turn the conveyor ON and watch it track.
3.
Determine which side the conveyor is track-
ing towards (the loose side) and tension the
adjustment bolt on that side until the con-
veyor tracks in the opposite direction. Note:
Tracking changes may take up to three min-
utes before they are noticeable.
4.
When the conveyor is near the middle of the
rollers or table, loosen the adjustment bolt
until the conveyor stops moving and tracks
straight.
— If the conveyor tracks too far to the other
side, then adjust the bolt as necessary to
bring it back and repeat Steps 2 & 3 until
the tracking is correct.
G0449/G0450 37" Drum Sander

Drum Adjustments

Tools Needed:
Hex Wrench 3, 5 mm .................................... 1ea
Wrench/Socket 17, 19mm ............................. 1ea
Flat Head Screwdriver ....................................... 1
Measuring Tape ................................................ 1
Feeler Gauge Set .............................................. 1
Gauge Blocks (3' Long 2x4) .............................. 2
Small Gauge Blocks (Page 41) ......................... 2
There are three adjustments for the sanding
drums: 1) the drums must be perpendicular to the
feed direction (parallel with the conveyor roller,
Figure 51); 2) the drums must be parallel to the
top of the conveyor belt (Figure 56, Page 42); 3)
the rear drum must be set approximately 0.007"
to 0.015" below the front drum (Figure 60, Page
43).
At some point, you may need to readjust the
rear drum parallel to the conveyor if you change
the rear drum height to accomodate for different
sandpaper thicknesses or finish requirements.
Make sure the rear drum does not sit lower than
0.015" below the front drum.
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Figure 51. Drum perpendicular to feed direction.
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