Platen-Roller Adjustments - Grizzly G1531 Owner's Manual

6. Tighten the two cap screws shown in Figure
53.
7.
Replace and track the belt. The top of the
belt should now be parallel with the top of the
platen.
— If the top of the belt is not parallel with
the top of the platen and the low side of
the belt is less than
top of the graphite, then you do not need
to make further adjustments for parallel
tracking.
— If the top of the belt is not parallel with the
top of the platen and the lower side of the
belt is still more than
top of the graphite, estimate how much
the belt moved from when you originally
checked it. Compare this movement with
how much you turned the two set screws
in Step 5, then repeat Steps 3-6, but
adjust the set screws from Step 5 the
amount that you estimate will fix the paral-
lel tracking. Repeat as necessary until the
parallel tracking is correct.
Model G1140 G1531 (Mfd. Since 08/14)
/ " away from the
1
8
/ " away from the
1
8
Platen-Roller
Adjustments
The platen can be adjusted forward or backward
in relation to the main and idler rollers. When the
platen graphite pad is correctly adjusted, it should
extend beyond the rollers approximately
shown in Figure 54.
Platen
Graphite
Pad
⁄ " Gap
1
8
Figure 54. Correct platen-main roller distance.
If the platen extends beyond this, the belt will
stretch and the graphite pad will wear quicker.
Because the idler roller is attached to the platen,
it will need to be adjusted independently to com-
plete this procedure.
Also, if the main roller is not vertically parallel with
the platen, the motor will need to be adjusted on
the motor mount to complete this procedure.
Instructions for all three adjustments are given
below. First, check the platen-to-roller relationship
to see if you need to make the adjustments.
Tools Needed
Straightedge ...................................................... 1
Wrench 8mm ..................................................... 1
Wrench 12mm ................................................... 1
Wrench 14mm ................................................... 1
/ ", as
1
8
Main (End View
Roller of Sander)
Qty
-37-