Grizzly G0458 - Manual (Page 38)

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Model G0458 (Mfg. Since 5/11)
5. raise the table until the gauge blocks just
touch the drum.
6. Find the largest size feeler gauge that can
pass between the front pressure plate and
your gauge block. (the feeler gauge should
slide with moderate resistance, without forc-
ing the drum to roll.)
—if the gap is 0.004" (0.1mm) or less, then
no adjustment of the front pressure plate is
necessary.
— if the gap is more than 0.004" (0.1mm),
then the front pressure plate must be
adjusted.
to adjust the rear pressure plate:
1. disconnect power to the sander!
2. loosen the lock nuts and tighten the cap
screws on both ends of the rear pressure
plate shown in
figure 48 to raise the pres-
sure plate, or loosen the cap screw to lower
the pressure plate.
to adjust the front pressure plate:
1. disconnect power to the sander!
2. loosen the lock nuts and tighten the cap
screws on both ends of the front pressure
plate shown in
figure 49 to raise the pres-
sure plate, or loosen the cap screw to lower
the pressure plate.
3. Adjust the front pressure plate until it is equal
to, or up to 0.004" (0.1mm) lower than the
height of the drum.
figure 49. Front pressure plate adjustments.
Front pressure
plate Adjustment
Cap Screw
lock nut
figure 48. rear pressure plate adjustments.
rear pressure
plate Adjustment
Cap Screw
lock nut
rear
pressure
plate
Front
pressure
plate
3. Adjust the rear pressure plate until it is equal
to, or up to 0.004" (0.1mm) lower than the
height of the drum.