Jet 577001 j-4126ac - vari-speed square wheel grinder Mode D'Emploi

13

Troubleshooting

Poor Tracking

1.  Improper belt splice.

1.  Check belt for irregular seam or  shape.

2.  Excessive belt tension.

2.  Set tension so belt is just taut.

3.  Insufficient belt tension.

3.  Set tension so belt is just taut.

4.  Worn contact surfaces.

4.  Check elastomer on contact wheels.
     Replace worn wheels.

5.  Misaligned contact surfaces.

5.  Check alignment of drive wheel and
     contact wheels.  The drive pulley and
     contact wheel must be aligned.  To
     adjust drive wheel, loosen set screws

        and move drive wheel in or out on

     motor shaft as required. To adjust
     contact wheel, loosen shaft clamping
     screw and move contact wheel in or out
     as required.

6.  Lack of crown on drive wheel.

6.  Check for 1/16-inch crown. Replace
     drive wheel if crown is not present.

7.  Worn bearings.

7.  Check all bearings for overheating or
     damage.  Replace worn or damaged

        bearings.

Slack Belt

1.  Insufficient belt tension.

1.  Set tension so belt is just taut.

Contact Wheel Wear

1.  Excessive belt tension.

1.  Set tension so belt is just taut.

2.  Grinding in one area on belt.

2.  Use entire work surface of belt when
     ever possible.

3.  Excessive grinding deposits

3.  Periodically clean interior of grinder.

     on belt and debris in machine.

Short Belt Life

1.  Excessive grinding pressure.

1.  Allow the belt to do the cutting.
     Excessive pressure dulls the belt and
     removes the grit from the belt.

Replacement Parts

This section provides exploded view illustrations that show the replacement parts for the JET Models J-4103 and
J-4126AC Square Wheel Belt Grinder.  Also provided are parts listings that show part number, description and
quantity. The item numbers on the illustration relate to the item number in the facing page of the parts listing.

Order replacement parts from:

WALTER MEIER (Manufacturing) Inc.
427 New Sanford Road
LaVergne, Tennessee 37086
Phone: 800-274-6848

Identify the replacement part by the part number shown in the parts listing.  Be sure to include the model
number and serial number of your machine when ordering replacement parts to assure that you will receive the
correct part.