Grizzly G9983 instruction manual Troubleshooting, Symptom Possible Cause Corrective Action

Page 54

TROUBLESHOOTING

SYMPTOM

 

 

POSSIBLE CAUSE

CORRECTIVE ACTION

 

 

 

 

 

 

 

Motor will not start.

 

 

1.

Low voltage.

1.

Check power line for proper voltage.

 

 

 

2.

Open circuit in motor or loose con-

2.

Inspect all lead connections on motor for loose or open connections.

 

 

 

 

nections.

 

 

 

 

 

 

 

Motor will not start; fuses or

1.

Short circuit in line cord or plug.

1.

Inspect cord or plug for damaged insulation and shorted wires.

circuit breakers blow.

 

2.

Short circuit in motor or loose con-

2.

Inspect all connections on motor for loose or shorted terminals or

 

 

 

 

nections.

 

worn insulation.

 

 

 

3.

Incorrect fuses or circuit breakers

3.

Install correct fuses or circuit breakers.

 

 

 

 

in power line.

 

 

 

 

 

 

 

 

 

Motor overheats.

 

 

1.

Motor overloaded.

1.

Reduce load on motor.

 

 

 

2.

Air circulation through the motor

2.

Clean out motor to provide normal air circulation.

 

 

 

 

restricted.

 

 

 

 

 

 

 

 

Motor stalls (resulting

in

1.

Short circuit in motor or loose con-

1.

Inspect connections on motor for loose or shorted terminals or worn

blown fuses or tripped cir-

 

nections.

 

insulation.

cuit).

 

 

2.

Low voltage.

2

Correct the low voltage conditions.

 

 

 

3.

Incorrect fuses or circuit breakers

3.

Install correct fuses or circuit breakers.

 

 

 

 

in power line.

 

 

 

 

 

4.

Motor overloaded.

4.

Reduce load on motor.

 

 

 

 

 

Machine slows when oper-

1.

Feed rate too high.

1.

Feed workpiece slower and watch load meter.

ating.

 

 

2.

Depth of cut too great.

2.

Reduce depth of cut and watch load meter.

 

 

 

 

 

Loud, repetitious noise com-

1.

Pulley set screws or keys are miss-

1.

Inspect keys and set screws. Replace or tighten if necessary.

ing from machine

 

 

 

ing or loose.

2.

Tighten fan or shim cover.

 

 

 

2.

Motor fan is hitting the cover.

 

 

 

 

 

3.

V-belt is defective.

3.

Replace V-belt. See Maintenance section.

 

 

 

 

 

Machine is loud, overheats

1.

Excessive depth of cut.

1.

Decrease depth of cut.

or bogs down in the cut.

 

2.

Dull sanding belt.

2.

Replace sanding belt.

 

 

 

 

 

Edges of wood are rounded.

1.

Excessive depth of cut.

1.

Reduce depth of cut.

 

 

 

 

 

 

 

Uneven thickness

from

left

1.

Feed table not parallel to sanding

1.

Adjust the table.

to right of board.

 

 

 

roller.

 

 

 

 

 

2.

Feed belt is worn.

2.

Replace feed belt.

 

 

 

 

 

 

Workpiece slips

on feed

1.

Pressure rollers set too high.

1.

Lower pressure rollers.

belt.

 

 

2.

Dirty feed belt.

2.

Clean feed belt.

 

 

 

3.

Feed belt is worn.

3.

Replace feed belt.

 

 

 

 

 

Straight strip of notches on

1.

Pressure rollers are dirty or dam-

1.

Clean or repair pressure rollers.

workpiece.

 

 

 

aged.

 

 

 

 

 

 

 

 

Snake shaped marks

on

1.

Sanding belt damaged or dirty.

1.

Clean or replace sanding belt.

workpiece.

 

 

 

 

 

 

 

 

 

 

 

 

 

For your safety, turn switch OFF and dis- connect the machine from power source before any troubleshooting. Please refer to the adjustment section to make correc- tions.

-52-

G9983 15" Open-End Wide-Belt Sander

Page 53 Page 55
Image 54
Page 53 Page 55
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
Top Page Image Contents