Powermatic M-1791257 operating instructions Troubleshooting Operational Problems

Page 29

Troubleshooting – Operational Problems

Trouble

Table tilt does not hold position under load.

Table will not tilt.

Table vibration while sawing.

Surface finish on workpiece is rough.

Saw blade cutting inaccurately. Cuts are not straight.

Blade cannot be tensioned properly.

Blade forms cracks at base of teeth.

Blade forms cracks at base of teeth. (continued)

Probable Cause

Remedy

 

 

Locking lever is not tight.

Tighten locking lever (see page 15).

 

 

Trunnion locking mechanism is broken

Replace trunnion locking mechanism.

or worn.

 

 

 

Trunnion is not lubricated.

Lubricate trunnion.

 

 

Trunnion is jammed.

Disassemble and replace jammed

parts.

 

 

 

 

Position belt for correct speed (see

Incorrect blade speed.

page 21). Also use acceptable feed rate

 

for the material being worked (page 28).

 

 

Drive belt is too slack.

Increase tension on drive belt. (see

page 20). Replace belt if worn.

 

 

 

Incorrect choice of saw blade pitch.

Check blade selection chart and use

correct blade (see page 28).

 

 

 

Saw dust or debris on band wheel. Or

Keep band wheels clean. Replace tires

tire is worn/damaged.

if necessary.

 

 

Support bearing(s) are worn.

Replace support bearings.

 

 

Saw blade speed is too low.

Increase speed.

 

 

Saw blade pitch is too coarse.

Change to finer pitch blade.

 

 

Worn blade teeth or damaged blade.

Replace blade.

 

 

Fence not parallel to blade.

Align fence properly (see page 11).

 

 

Incorrect adjustment of blade guides.

Adjust blade guides properly (see

pages 18 and 19).

 

 

 

Incorrect blade speed used.

Change to correct speed (see page 21).

 

 

Workpiece being fed too strongly.

Reduce feed force.

 

 

Upper blade guides not located close

Guides should be about 3/16” above

enough to workpiece.

workpiece (see page 22).

 

 

Incorrect choice of saw blade for that

Change to correct blade.

particular cutting operation.

 

 

 

Blade tension too light.

Increase tension (see page 16).

 

 

Tension springs are fatigued.

Replace tension springs (contact

 

service representative).

 

 

Teeth not suitable for particular job, or

Replace with proper blade for job.

are incorrectly set.

 

 

 

Blade thickness not suitable for band

Replace with proper thickness blade.

wheel diameter.

 

 

 

Blade sharpened incorrectly, becomes

Sharpen blade properly or replace.

overheated.

 

 

 

Band wheels have become misaligned.

Contact service representative.

 

 

29

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Contents 20and 24 Band Saws Warranty Period Warranty and ServiceTable of Contents Page Page Page 2013 Introduction SpecificationsFloor Diagrams Features and TerminologyUnpacking Contents of the Shipping ContainerInstalling Fence and Rails AssemblyPage Dust Collection Grounding InstructionsExtension cords Volt, Single Phase OperationVolt, Three Phase Operation Three-Phase Test Run Converting from 230 Volt to 460 Volt Three Phase OnlyTable Stop AdjustmentsTable Tilt Blade Tension Installing/Changing BladesBlade Tracking Upper Blade Guides and Upper Support Bearing Upper Blade Guide AssemblyLower Blade Guides and Lower Support Bearing Belt Tension Miter GaugeBelt Alignment Blade Speed AdjustmentOperating Controls Brake Pedal General ProcedureOperation Crosscutting RippingResawing Blade LeadBlade Selection Shape WidthPitch Material SetBand Wheel Replacement MaintenanceTire Replacement For Radius Cutting Blade Selection GuideTroubleshooting Operational Problems Trouble Troubleshooting Mechanical and Electrical Problems Trouble Probable Cause Remedy Replacement PartsIndex No. Part No Description Size Qty Parts List Saw Body Assembly 2013 Band Saw2415-102ORN Parts List Saw Body Assembly 2415 Band SawSaw Body Assembly 2013 Parts List Table Assembly 2013 Band Saw Index No. Part No Description Size Qty Parts List Table Assembly 2415 Band Saw Index No. Part No Description Size Qty Table Assembly 2013 For 2013-3, serial #01062013090 to Parts List Upper Wheel Base Assembly 2013 Band SawFor 2415-3, serial #01062415011 to Parts List Upper Wheel Base Assembly 2415 Band SawUpper Wheel Base Assembly 2013 Parts List Lower Wheel Base Assembly 2013 Band Saw ST 18AWG Parts List Lower Wheel Base Assembly 2415 Band Saw 2013-459 Limit Switch Cord not shown Lower Wheel Base Assembly 2013 Parts List Guide Bracket Assembly 2013 Band Saw Index No. Part No Description Size Qty Parts List Guide Bracket Assembly 2415 Band Saw Index No. Part No Description Size Qty Guide Bracket Assembly 2013 Band Saw only MotorMagnetic Switch Electrical Connections 230 Volt, 3 Phase Models 2013 Electrical Connections 460 Volt, 3 Phase Models 2013 This page intentionally left blank This page intentionally left blank