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18
Conveyor Belt Replacement
To replace the conveyor belt:
1. Disconnect the machine from the power
source.
2. Raise the drum to its highest position using
the handwheel (Figure 19, Item A).
3. Remove the belt tension by loosening both
take-up nuts (Figure 19, Item B).
4. Unscrew the three screws (Figure 19, Item
C) that attach the conveyor to the bracket.
5. Unbolt the two hex head bolts (Figure 19,
Item D) that hold the bracket to the bench or
stand.
6. Slide the conveyor belt off the conveyor and
replace it with a new belt.
7. Reverse the procedure for installation.
Tension Roller Alignment
1. Remove the abrasive strip (Figure 20 Item
E) from the drum.
2. Loosen the two bearing hex nuts (Figure 20,
Item F) on the outboard side of the drum
and two cap screws on the inboard side
(Figure 20, Item G).
3. This will allow the tension rollers to drop to
their lowest position.
4. Lower the sanding drum so that it just
touches the conveyor bed.
5. Turn the drum height handle one complete
revolution to raise the drum.
6. Retighten the bearing hex nuts and the cap
screws.
Tension Roller Pressure Adjustment
You can also adjust the spring-loaded screws
(Figure 20, Item H) found on the pressure roller
brackets, to increase or decrease roller
pressure. If you are getting snipe marks at the
leading end of the board adjust the outfeed roller
pressure. If the snipe marks occur on the trailing
end of the board, adjust the infeed roller
pressure.
Drum Height Control Adjustment
If the height control mechanism does not
operate easily or smoothly, or there is excessive
vertical movement of the drum carriage, perform
the following adjustments.
1. To reduce the handwheel backlash, tighten
the locknut on the height adjustment screw
(Figure 21, Item J).
2. Thoroughly lubricate all mating surfaces and
height adjustment screw (Figure 21, Item K).
Figure 20
F F
H
H
E
E
Figure 19
C
B
A
D
Figure 21
J
K
K