Grizzly G9983 instruction manual Sanding Belt Tension Pressure Rollers, To Tighten Belt Tension

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Sanding Belt Tension

Pressure Rollers

 

 

 

 

 

 

The sanding belt tension is controlled by a switch located inside the upper portion of the machine (see Figure 12). To locate it, open the access door on the left-hand side of the sander.

Figure 12. This is the belt tension switch.

To Tighten Belt Tension:

Flip the switch up. The vertical cylinder will auto- matically tighten the top roller to the correct ten- sion.

To Loosen Belt Tension:

Flip the switch down. The vertical cylinder will automatically loosen the belt tension for belt removal.

NOTICE

The belt tension switch is part of the air control system. This means the machine must have air pressure for the switch to work correctly.

NOTICE

Always tighten belt before starting sander!

Always keep the pressure rollers set below the level of the sanding roller. If the pres- sure rollers are even, or higher than the sanding roller, the wood WILL be propelled from the sander at a high rate of speed. This situation could cause serious person- al injury.

The pressure rollers have been set at the factory, but for increased personal safety, you should ver- ify that they are below the sanding belt.

To check the feed pressure:

1.Disconnect the sander from the power source!

2.Place a piece of scrap wood of uniform thick- ness across the conveyor so it spans both front and rear pressure rollers at the same time.

3.Make sure the platen is even with the sand- ing belt rollers.

4.With the air pressure connected, the sanding belt installed, and the belt tension switch ON, slowly raise the conveyor and verify that the board touches both pressure rollers before it touches the sanding belt.

If the board does not touch both pressure rollers before it touches the sanding belt, then the pressure rollers must be adjust- ed before operation. See Section 8: Service Adjustments for step-by-step instructions on how to do this.

 

 

 

 

 

 

 

 

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G9983 15" Open-End Wide-Belt Sander

 

 

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Contents OPEN-END WIDE-BELT Sander Page Table Of Contents Safety Safety Instructions For Power ToolsLength AMP Rating 25ft 50ft 100ftAdditional Safety Instructions For The Wide-Belt Sander Introduction 220V Single-Phase Circuit RequirementsWiring GroundingExtension Cords Machine Features External Features Control PanelAccess Doors These items are behind Left-hand access doorSET UP UnpackingPiece Inventory Hardware Recognition Chart MeasureClean Up Site ConsiderationsBeginning Assembly To install the handwheel handleHandwheel Handle Platen To insert the platenTo set the platen even with the belt rollers Sanding Belt To install a sanding beltAir Hose To connect the air hoseSanding Belt Tension Pressure Rollers To Tighten Belt TensionTo Loosen Belt Tension Dust Collection Test Run Before you test run your machineRecommended Adjustments Recommended adjustment checklistChoosing Sandpaper OperationsBefore Starting Grit TypeConveyor Height Feed Belt Speed To change feed belt speeds Unplug the sanderLoad Meter Operation This is the load meterPlaten Depth Cleaning Pads Three basic platen positionsGeneral MaintenanceCleaning Sanding Belts Emptying FiltersDate Approximate Hours Of Use Maintenance Performed Service Adjustments Oscillation TimingOscillation Speed Use the knob on this valve to control Oscillation speedTo adjust the limit switches Limit SwitchesTo adjust the oscillation return Oscillation ReturnTo adjust the pressure roller depth Unplug the sander Pressure Roller DepthTo adjust the pressure roller tension Unplug the sander Pressure Roller TensionFeed Belt Tracking To adjust the feed belt tracking Unplug the sanderFeed Belt Tension To check the feed belt trackingBelt Tension Replacing V-BeltsG9983 15 Open-End Wide-Belt Sander Platen Graphite Air System To replace the graphite sheetReplacing Brakes Date Approximate Hours Of Use Service Performed Closure Machine Data Sheet Air Inlet Motor 5 6 8 9 10 11 14 Model G9983 Wiring Diagram 220 Volt Single Phase G9983 Parts Breakdown Platen Tool109108 124 111 110 112 Machine Base Roller Bracket LH G9983 Contact Roller Base 414 Machine Frame 621 622 620 601 619 623 Control BOX Troubleshooting Symptom Possible Cause Corrective ActionTion Warranty and Returns Warranty Card Grizzly INDUSTRIAL, INC Page Call Today For a Free Full Color Catalog