Jet Tools PB-85, PB-150 operating instructions Troubleshooting, Probable Cause Remedy

Page 16

Troubleshooting

Trouble

Motor will not start, or stops suddenly.

Overload trips frequently.

Band Saw vibrates excessively.

Miter cuts not accurate.

Cuts not square.

Finished surface of workpiece is rough, unsatisfactory.

Probable Cause

Remedy

 

 

No incoming power.

Check plug connection.

 

 

Blown electrical panel fuses.

Replace fuses.

 

 

Thermal overload has tripped.

Release run button and wait several

minutes for overload to reset itself.

 

 

 

Defective motor, switch, power cable,

Qualified electrician/service personnel

or plug.

should inspect these items.

 

 

Motor is overheating.

Check that motor air intakes are clear.

 

 

Downfeed pressure is too fast.

Reduce downfeed pressure.

 

 

Motor is faulty.

Motor should be inspected by

qualified electrician/service personnel.

 

 

 

Stand is on uneven surface.

Adjust stand for even support.

 

 

Saw blade has cracks.

Replace blade immediately.

 

 

Too heavy a cut.

Reduce downfeed pressure and blade

speed.

 

 

 

 

Adjust the stops to correct positions.

Setting of the miter stops is not

See page 12. Use an adjustable

correct.

square or protractor to check angle

 

settings.

 

 

Blade guides not set correctly.

See page 11 for proper adjustment.

 

 

Downfeed pressure too great.

Decrease downfeed pressure.

 

 

90° angle stop is not set correctly.

Adjust stop until blade is square with

vise.

 

 

 

Incorrect blade toothing in relation to

Consult the cutting parameters (blade

workpiece.

teeth, cutting speed) in Figure 17.

 

 

Incorrect adjustment of bearing

Re-adjust these. See page 11.

guides and guide assembly.

 

 

 

Workpiece incorrectly positioned in

Check positioning and clamping in the

vise.

vise.

 

 

Poor blade tension.

Check and correct if needed. See

page 12.

 

 

 

Blade is dull, or its parameters are not

Use proper blade tooth configuration

for that particular workpiece. See

right for thickness of piece being cut.

chart, Figure 17.

 

 

 

Downfeed pressure too great.

Reduce downfeed pressure.

 

 

Blade tension too low.

Increase blade tension.

 

 

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Contents Part No. M-414495 Vantage Drive Elgin, IllinoisRevision A1 02/07 Copyright WMH Tool Group Warranty and Service Table of Contents Page Page Introduction Specifications Features and Terminology Model PB-85 is shown features are similar for the PB-150Contents of the Shipping Container UnpackingBand Saw should be disconnected from power during assembly AssemblyStock Stop Grounding Instructions Volt OperationExtension cords AdjustmentsBlade Guide and Bearings Miter Cuts Bow Depth StopBlade Tension Blade TrackingBlade Replacement Vise AdjustmentGeneral Operating Procedure OperationMaintenance Blade Speed and Downfeed PressureTrouble TroubleshootingProbable Cause Remedy Replacement Parts Model PB-85 Bow Assembly See parts list on pagesModel PB-85 Base Assembly Parts List Model PB-85 Index No. Part No Description Size QtyBB-6202LLU TS-2361081TS-1504041 TS-1540071Model PB-150 Bow Assembly Model PB-150 Base Assembly Parts List Model PB-150 PB150-046-11 TS-1503091TS-1503121 BB-6200ZZPB150-126-1 TS-1482041Electrical Connections Model PB-85 Electrical Connections Model PB-150