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G0512 Edge Sander
Platen-to-Rollers
Adjustments
Figure 41. Checking top of platen-to-roller.
Figure 42. Checking bottom of platen-to-roller.
The platen can be adjusted forward or backward
in relation to the main and idler rollers. When the
platen is correctly adjusted, it should extend
beyond the rollers approximately
1
⁄8". 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 will be given
below. First, check the platen-to-roller relation-
ship to see if you need to make the adjustments.
To check the platen-to-main roller relation-
ship:
1. Disconnect the sander from the power
source!
2. Remove the sanding belt and dust port.
3. Place a straightedge across the TOP part of
the platen graphite and the main roller as
shown in Figure 41. Measure the gap, if
there is one, between the straightedge and
the main roller.
4. Now place the straightedge across the BOT-
TOM part of the platen graphite and the main
roller as shown in Figure 42. Measure the
gap, if there is one, between the straightedge
and the main roller.
5. Analyze the results of your check in steps 3-
4, using the criteria below:
— Correct Platen-to-Main Roller
Relationship: The distance between the
straightedge and the main roller is
approximately
1
⁄8" at both the top and bot-
tom. No adjustments are necessary to
the platen position or the main roller posi-
tion.
— Platen Incorrect: The distances between
the straightedge and the main roller at
both the top and bottom are more or less
than
1
⁄8", but the distances at both the top
and bottom are approximately the same.
The platen needs to be adjusted.
— Main Roller Incorrect: The distance
between the straightedge and the main
roller is different at the top than it is at the
bottom. The main roller needs to be
adjusted.
To check the platen-to-idler roller relation-
ship:
1. Follow steps 1–2 from the previous instruc-
tions.