Grizzly G0621 owner manual Service, Troubleshooting, Motor & Electrical

Page 39

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel- ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Motor & Electrical

Symptom

 

Possible Cause

Possible Solution

Machine does not

1.

OFF button has not been reset.

1.

Lift paddle and press OFF button down completely

start or a breaker

 

 

 

until it clicks.

trips.

 

2.

Plug/receptacle is at fault or wired incorrectly.

2.

Test for good contacts; correct the wiring.

 

 

 

 

3.

Motor connection wired incorrectly.

3.

Correct motor wiring connections.

 

 

4.

Wall fuse/circuit breaker is blown/tripped.

4.

Ensure circuit size is suitable for this machine;

 

 

 

 

 

replace weak breaker.

 

 

5.

Power supply switched OFF or is at fault.

5.

Ensure power supply is switch on; ensure power

 

 

 

 

 

supply has the correct voltage.

 

 

6.

Wiring is open/has high resistance.

6.

Check for broken wires or disconnected/corroded

 

 

 

 

 

connections, and repair/replace as necessary.

 

 

7.

Motor ON button or ON/OFF switch is at fault.

7.

Replace faulty ON button or ON/OFF switch.

 

 

8.

Inverter/Controller box is at fault.

8.

Inspect inverter/controller box; replace if faulty.

 

 

9.

Motor is at fault.

9.

Test/repair/replace.

 

 

 

 

 

Machine stalls or

1.

Feed rate/cutting speed too fast for task.

1.

Decrease feed rate/cutting speed.

is underpowered.

2.

Machine is undersized for the task.

2.

Use sharp blade with lower TPI; reduce the feed

 

 

 

 

 

rate/depth of cut.

 

 

3.

Blade is slipping on wheels.

3.

Adjust blade tracking and tension to factory specifi-

 

 

 

 

 

cations.

 

 

4.

Motor connection is wired incorrectly.

4.

Correct motor wiring connections.

 

 

5.

Plug/receptacle is at fault.

5.

Test for good contacts; correct the wiring.

 

 

6.

Pulley/sprocket slipping on shaft.

6.

Replace loose pulley/shaft.

 

 

7.

Motor is at fault.

7.

Test/repair/replace.

 

 

 

 

 

 

Machine

has

1.

Motor or component is loose.

1.

Inspect/replace stripped or damaged bolts/nuts, and

vibration or noisy

 

 

 

re-tighten with thread locking fluid.

operation.

 

2.

Blade weld is at fault or teeth are broken.

2.

Replace blade.

 

 

 

 

3.

Blade is at fault.

3.

Replace warped, bent, or twisted blade; resharpen

 

 

 

 

 

dull blade.

 

 

4.

V-belt worn or loose.

4.

Inspect/replace belt.

 

 

5.

Pulley is loose.

5.

Realign/replace shaft, pulley, setscrew, and key as

 

 

 

 

 

required.

 

 

6.

Motor mount loose/broken.

6.

Tighten/replace.

 

 

7.

Machine is incorrectly mounted or sits uneven-

7.

Tighten/replace anchor studs in floor; relocate/shim

 

 

 

ly.

 

machine.

 

 

8.

Motor fan is rubbing on fan cover.

8.

Replace dented fan cover; replace loose/damaged

 

 

 

 

 

fan.

 

 

9.

Motor bearings are at fault.

9.

Test by rotating shaft; rotational grinding/loose shaft

 

 

 

 

 

requires bearing replacement.

 

 

 

 

G0621 Wood/Metal Bandsaw

 

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Page 38 Page 40
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Page 38 Page 40
Contents Model G0621 WOOD/METAL Bandsaw Page Table of Contents Introduction ForewordContact Info Machine Data Sheet G0621 Wood/Metal Bandsaw Identification Safety G0621 Wood/Metal Bandsaw Additional Safety Instructions for Bandsaws Circuit Requirements 220V Single-PhaseUnpacking SetupSetup Safety Items Needed for SetupInventory Main Components Figure QtyFasteners and Tools not shown Qty Hardware Recognition Chart Floor Load Clean UpPlacement Location Site ConsiderationsTo assemble the bandsaw AssemblyPage Dust port installation G0621 Wood/Metal Bandsaw Dust Collection Blade Tracking To connect a vacuum hoseTo center track the blade Changes in the blade tension may change the blade tracking Test RunTo tension the bandsaw blade Adjusting Support BearingsTo adjust the support bearings Tensioning BladeG0621 Wood/Metal Bandsaw To adjust the upper and lower blade guides Adjusting Blade GuidesTo calibrate the pointer on the table tilt scale Adjusting Positive StopSetting Table Tilt Scale to 0˚ To set the positive stop 90˚ to the bladeTo align the fence parallel with the miter slot Aligning TableAligning Fence To align the miter slot parallel to the bandsaw bladeOperations Operation Safety Basic ControlsIrregular Cuts Workpiece Inspection WoodOverview Straight CutsPositive stop must be removed to move the table to the left Table TiltGuide Post To tilt the tableRippingCrosscutting To make a rip cutTo make a 90˚ crosscut Typical resawing operation ResawingTo complete a stacked cut Cutting Curves Stacked CutsTooth Style Blade Selection Wood CuttingBlade Length Blade WidthMost common causes of blade breakage are Tooth PitchBlade Care Blade BreakageTo select the correct blade TPI Blade Selection Metal CuttingTo replace the blade Blade ChangesTo calibrate the scale Scale CalibrationG1928-Bandsaw Handbook AccessoriesGrizzly Bandsaw Blades G7315-Super Heavy-Duty Mobile BaseLubricating MaintenanceCleaning ScheduleService TroubleshootingMotor & Electrical Miscellaneous Cutting OperationsAccessing V-Belts Servicing V-BeltsChecking V-Belts Tensioning/Replacing V-Belts Shimming Table Blade Lead To shim the tableTo skew your fence Verifying Upper/Lower Wheels are Coplanar Wheel AlignmentAdjusting Lower Wheel To adjust the lower wheelShimming Upper Wheel Motor junction box wiring Electrical Component WiringWiring Diagram Breakdown Description Main Parts ListTable/Blade Guides Parts Breakdown Secondary Parts Breakdown Stand Parts Breakdown Fence Parts Breakdown Safety Labels Parts Breakdown Warranty and Returns Page Page Page
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