Grizzly G9983 Pressure Roller Tension, To adjust the pressure roller tension Unplug the sander

Page 31

Pressure Roller

Tension

Pressure roller tension is largely set by trial and error. If there is not enough tension, the work- piece will not pass through the sander evenly and may possibly be launched toward the operator. If there is too much tension, the feed belt will expe- rience premature wear and the workpiece will pass through the sander sluggishly (if at all).

To adjust the pressure roller tension:

1.Unplug the sander!

2.Make sure the pressure roller depth is set correctly.

3.Open both access doors and locate the pres- sure roller tension springs shown in Figure 25.

Figure 25. This is one of the four pressure roller adjustment bolts.

4.Turning the nut on the adjustment bolt clock- wise will increase the tension and counter- clockwise will decrease the tension.

A quick way to gauge that the spring tension is consistent is to measure the distance from the top of the nut to the the top of the adjustment bolt. If the board pulls to one side during sanding, loosen that side in small increments as needed.

G9983 15" Open-End Wide-Belt Sander

-29-

Image 31
Contents OPEN-END WIDE-BELT Sander Page Table Of Contents Safety Instructions For Power Tools Safety25ft 50ft 100ft Length AMP RatingAdditional Safety Instructions For The Wide-Belt Sander Introduction Circuit Requirements 220V Single-PhaseGrounding WiringExtension Cords External Features Control Panel Machine FeaturesThese items are behind Left-hand access door Access DoorsUnpacking SET UPPiece Inventory Measure Hardware Recognition ChartSite Considerations Clean UpTo install the handwheel handle Beginning AssemblyHandwheel Handle To insert the platen PlatenTo set the platen even with the belt rollers To connect the air hose To install a sanding beltAir Hose Sanding BeltTo Tighten Belt Tension Sanding Belt Tension Pressure RollersTo Loosen Belt Tension Before you test run your machine Dust Collection Test RunRecommended adjustment checklist Recommended AdjustmentsGrit Type OperationsBefore Starting Choosing SandpaperTo change feed belt speeds Unplug the sander Conveyor Height Feed Belt SpeedThis is the load meter Load Meter OperationThree basic platen positions Platen Depth Cleaning PadsEmptying Filters MaintenanceCleaning Sanding Belts GeneralDate Approximate Hours Of Use Maintenance Performed Oscillation Timing Service AdjustmentsUse the knob on this valve to control Oscillation speed Oscillation SpeedOscillation Return Limit SwitchesTo adjust the oscillation return To adjust the limit switchesPressure Roller Depth To adjust the pressure roller depth Unplug the sanderPressure Roller Tension To adjust the pressure roller tension Unplug the sanderTo check the feed belt tracking To adjust the feed belt tracking Unplug the sanderFeed Belt Tension Feed Belt TrackingReplacing V-Belts Belt TensionG9983 15 Open-End Wide-Belt Sander To replace the graphite sheet Platen Graphite Air SystemReplacing 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 Platen Tool G9983 Parts Breakdown109108 124 111 110 112 Machine Base Roller Bracket LH G9983 Contact Roller Base 414 Machine Frame 621 622 620 601 619 623 Control BOX Symptom Possible Cause Corrective Action TroubleshootingTion Warranty and Returns Warranty Card Grizzly INDUSTRIAL, INC Page Call Today For a Free Full Color Catalog