Shear Bolt Difficulties

Symptom Problem Solution

Flywheel shear bolt sheared.

Shear bolt hub or shear bolt sleeve worn or damaged (hole edges must be sharp).

Replace parts.

Dull knives.

Sharpen knives.

Obstruction in bale chamber.

Remove all obstructions.

Too much clearance between knives.

Adjust plungerhead. (See ADJUSTING PLUNGERHEAD in Service section.)

Crank stop adjusted incorrectly.

Adjust stop. (See ADJUSTING CRANK STOP in Service section.)

Worn clutch ring.

Replace.

Bales too heavy for condition.

Loosen bale tension. (See ADJUSTING TWINE TENSION in Operating the Baler section.)

Needles in bale case.

Place needles in home position. (See PLACING NEEDLES IN HOME POSITION in Service section.)

Shear surfaces separated.

Shear bolt hub must be tight against shear bolt sleeve. (See REPLACING FLYWHEEL SHEAR BOLT in Operating the Baler section.)

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Symptom Problem Solution

Excessive flywheel shear bolt breakage.

Shear bolt sleeve is loose in flywheel.

Replace sleeve.

Flywheel bushing worn.

Replace bushing.

Chipped or worn sleeve in flywheel; or chipped or worn shear bolt hub.

Check and replace if needed.

Shear surfaces separated.

Shear bolt hub must be tight against shear bolt sleeve. (See REPLACING FLYWHEEL SHEAR BOLT in Operating the Baler section.)

Bales too heavy for conditions.

Reduce tension. (See ADJUSTING BALE WEIGHT in Operating the Baler section.)

Sheared knotter and needle drive bolt.

Knotter drive brake too tight.

Loosen knotter drive brake. (See ADJUSTING KNOTTER DRIVE BRAKE in Service section.)

Needles out of time.

Time needles. (See TIMING THE BALER in Service section.)

Needles hitting obstruction.

Remove all obstructions.

Obstruction in knotter.

Remove all obstructions.

Needles out of adjustment.

Adjust needles. (See ADJUSTING NEEDLES-TWINE BALER or ADJUSTING NEEDLES-WIRE BALER in Service section.)

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