Wilton 7060 manual Troubleshooting, Fault Probable cause Suggested remedy

Page 20

20

Troubleshooting

Fault

Probable cause

Suggested remedy

 

 

 

 

 

Excessive blade

1.

Material loose in vise.

1.

Clamp work securely.

breakage

2.

Incorrect speed or feed.

2.

Check Machinist’s Handbook for

 

 

 

 

speed/feed appropriate for the

 

 

 

 

material being cut.

 

3.

Teeth too coarse for material.

3.

Check Machinist’s Handbook for

 

 

 

 

recommended blade type.

 

4.

Incorrect blade tension.

4.

Adjust blade tension to the point

 

 

 

 

where the blade just does not slip

 

 

 

 

on the wheel.

 

5.

Saw blade is in contact with

5.

Start the motor before placing the

 

 

workpiece before the saw is

 

saw on the workpiece.

 

 

started.

 

 

 

6.

Blade rubs on the wheel flange.

6.

Adjust blade tracking.

 

7.

Misaligned guides.

7.

Adjust guides.

 

8.

Cracking at weld.

8.

Longer annealing cycle.

 

 

 

 

 

Premature blade

1.

Blade teeth too coarse.

1.

Use a finer tooth blade.

dulling

2.

Blade speed too high.

2.

Try a lower blade speed.

 

3.

Inadequate feed pressure.

3.

Decrease spring tension.

 

4.

Hard spots in workpiece or scale

4.

Increase feed pressure (hard

 

 

on/in workpiece.

 

spots). Reduce speed, increase

 

 

 

 

feed pressure (scale).

 

5.

Work hardening of material

5.

Increase feed pressure by

 

 

(especially stainless steel).

 

reducing spring tension.

 

6.

Insufficient blade tension.

6.

Increase tension to proper level.

 

7.

Operating saw without pressure

7.

Do not run blade at idle in/on

 

 

on workpiece.

 

material.

 

 

 

 

 

Bad cuts

1.

Workpiece not square with blade.

1.

Adjust vise so it is square with the

(out-of-square)

 

 

 

blade. (Always clamp work tightly

 

 

 

 

in vise.)

 

2.

Feed pressure too fast.

2.

Decrease pressure.

 

3.

Guide bearings not adjusted

3.

Adjust guide bearing clearance to

 

 

properly.

 

0.001 inch (0.002 inch maximum).

 

4.

Inadequate blade tension.

4.

Gradually increase blade tension.

 

5.

Span between the two blade

5.

Move blade guide bar closer to

 

 

guides too wide.

 

work.

 

6.

Dull blade.

6.

Replace blade.

 

7.

Incorrect blade speed.

7.

Check blade speed

 

 

 

 

(see Figure 3).

 

8.

Blade guide assembly is loose.

8.

Tighten blade guide assembly.

 

9.

Blade guide bearing assembly

9.

Tighten blade guide bearing

 

 

loose.

 

assembly.

 

10.

Blade track too far away from

10.

Adjust blade tracking.

 

 

wheel flanges.

 

 

 

11.

Guide bearing worn.

11.

Replace worn bearing.

 

 

 

 

 

Bad cuts (rough)

1.

Blade speed too high for feed

1.

Reduce blade speed and feed

 

 

pressure.

 

pressure.

 

2.

Blade is too coarse.

2.

Replace with finer blade.

 

 

 

 

 

Image 20
Contents Inch x 20-Inch Semi Automatic Horizontal Cut-Off Band Saw Page Table of Contents General Specifications SpecificationsMachinery General Safety Warnings When Setting up MachineSafety Instructions on Sawing Systems General Electrical CautionsControls IntroductionOperating Instructions Raising/Lowering the Saw Head Setting Blade SpeedOther Controls Blade Break-in Procedures Controlling the Cut Hydraulic Feed ControlEvaluating Cutting Efficiency Blade SelectionInstallation and Adjustment of Work Stop Adjusting the Vise for Angle CutsWork Set-up Securing the Workpiece forAdjustments Blade Tracking AdjustmentStarting the Saw Coolant FlowFactory or Field Procedure Excessive Rubbing will Damage the Wheel AND/OR the BladeBlade Guide Bearing Adjustment Test Cutting to Verify Adjustment AccuracyMaintenance Adjustment of Limit SwitchesCleaning LubricationServicing Hydraulic Oil Changing BladesChanging the Drive Belt Replacing the Drive MotorAdjusting the Blade Guides Replacement of CarbideReplacing the Drive Wheel Replacing Idler Wheel or Idler Bearing Replacement of Guide Replacement of Blade Edge Replacement of the Wire Brush Replacing the Coolant PumpElectrical Machine SetupUncrating and Spotting Wiring Diagram Troubleshooting Fault Probable cause Suggested remedyTroubleshooting Replacement Parts 55 56 137 113 136 114 115 135 134 Page Electrical Components Detail a 242A WHM Tool Group