Powermatic WB-37 Adjustments, Volt Conversion, Extension cords, Sanding Belt Tracking Oscillation

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5.Press the Up S or Down T button on the keypad (see page 18 for detailed keypad instructions). Make sure the conveyor table moves in the same direction as indicated on the button.

6.If the conveyor table moves in the wrong direction, turn off the machine and disconnect from power. Switch any two of the three incoming power leads at R,S,T.

7.Re-connect power to the sander.

8.3460 Volt Conversion

To convert the sander to 460V:

1.Disconnect sander from power source.

2.In the electrical cabinet, switch the “R” wire on the transformer from the 220V to the 440V terminal. See Figure 6. (Refer to the wiring diagram on the inside cover of the electrical box for clarification.)

3.Replace two 230V overload relays with two 460V overload relays (not included; see

parts list for stock numbers).

Figure 6

4.Change the wiring at the main motor, the conveyor table motor, and the table elevating motor, according to the wiring diagrams inside their respective junction boxes.

5.If using a plug, install a UL/CSA-listed plug appropriate for 460V operation.

8.4Extension cords

The use of an extension cord for this sander is discouraged, because of the machine’s high amperage draw. If an extension cord becomes necessary, make sure the cord rating is suitable for the amperage listed on the machine’s motor plate. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

9.0Adjustments

9.1Sanding Belt Tracking and

Oscillation

The sanding belt should oscillate left and right without a tendency to slide off the rollers. If the sanding belt runs outside of the normal track, it will contact a limit switch and the machine will stop automatically.

The oscillation settings have been made at the factory, but should be checked by the operator. NOTE: When a new sanding belt is installed, there may be a slight length tolerance between the right and left sides of the sanding belt which

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Contents Wide Belt Sanders Warranty and Service Warranty PeriodTable of Contents Pressure Bar Assembly Models WB-25, WB-37, WB-43 16.8.2 Safety warnings Safety warnings Introduction Specifications 1790843Contents of Shipping Container UnpackingAssembly Air Supply ConnectionDust Collection Installing/Replacing Sanding Belt ElectricalGrounding Instructions 230 Volt Operation Model WB-25 shownAdjustments 460 Volt ConversionExtension cords Sanding Belt Tracking OscillationOscillation Air Flow Oscillation SpeedBelt Tension and Replacement Platen PositionReplacing Graphite and Felt Pad Conveyor Belt Tension Conveyor Belt TrackingPressure Bar Adjustment Feed RateTable Parallelism Operating Controls Amperage MeterLED Controller and Keypad Operation Braking SystemMaintenance Dust Port LayoutTroubleshooting the Sander TroubleTrouble Troubleshooting the LED Unit Replacement PartsBase and Motor Assembly Model WB-25 only Parts List Base and Motor Assembly Model WB-25 Index No. Part No Description Size QtyBase and Motor Assembly Model WB-37 only Parts List Base and Motor Assembly Model WB-37 Base and Motor Assembly Model WB-43 only Parts List Base and Motor Assembly Model WB-43 Upper Cabinet Assembly Model WB-25 only Parts List Upper Cabinet Assembly Model WB-25 Upper Cabinet Assembly Models WB-37, WB-43 Parts List Upper Cabinet Assembly Model WB-37 Parts List Upper Cabinet Assembly Model WB-43Table Raising Assembly Models WB-25, WB-37, WB-43 Parts List Table Raising Assembly Model WB-25 Parts List Table Raising Assembly Model WB-37 Parts List Table Raising Assembly Model WB-43 Hex Screw 12x4 Table and Conveyor Belt Assembly Models WB-25, WB-37, WB-43 Parts List Table and Conveyor Belt Assembly Model WB-25 WB25-IRAParts List Table and Conveyor Belt Assembly Model WB-37 WB37-IRAParts List Table and Conveyor Belt Assembly Model WB-43 WB43-IRAPressure Bar Assembly Models WB-25, WB-37, WB-43 Parts List Pressure Bar Assembly Model WB-25Parts List Pressure Bar Assembly Model WB-37 Parts List Pressure Bar Assembly Model WB-43Platen Assembly Model WB-25 only Parts List Platen Assembly Model WB-256290294 Platen Assembly Models WB-37, WB-43 Parts List Platen Assembly Model WB-37Parts List Platen Assembly Model WB-43 WB43-717 Air Regulator Assembly Models WB-25, WB-37, WB-43 Parts List Air Regulator Assembly Model WB-25Parts List Air Regulator Assembly Model WB-37 Parts List Air Regulator Assembly Model WB-43 Sanding Belt and Accessories Models WB-25, WB-37, WB-43 Parts List Sanding Belt and Accessories Model WB-25 Parts List Sanding Belt and Accessories Model WB-37Parts List Sanding Belt and Accessories Model WB-43 Tension Roller Assembly Models WB-25 and WB-37 only Parts List Tension Roller Assembly Model WB-25 Parts List Tension Roller Assembly Model WB-37 Seal Tension Roller Assembly Model WB-43 only Parts List Tension Roller Assembly Model WB-43 WB43-163 Electrical Box Assembly Models WB-25 and WB-37 Parts List Electrical Box Assembly Model WB-25 Parts List Electrical Box Assembly Model WB-37 Electrical Box Assembly Model WB-43 only Parts List Electrical Box Assembly Model WB-43 Electrical Connections Models WB-25 and WB-37 onlyModel WB-43 only