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ALIGNMENT AND INITIAL OPERATION of CONVEYOR BELTS

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ALIGNMENT AND INITIAL OPERATION of CONVEYOR BELTS

May 16, 2023 nflg 0 Comments

COMPONENT ALIGNMENT AND OPERATION

Accurate alignment of all components is most important.
All Terminal assemblies should be square, level and in line .
All idlers should be perpendicular to line of belt travel, properly spaced and level.
Belt splice should be square to center line of belt.
All shafts should be free to turn by hand without bolts in place and bearings must be stop-blocked to prevent shifting during operation.
All bolts, fastening bearings and other power transmission equipment should be securely tightened.

ALIGNMENT AND INITIAL OPERATION

Before placing belt conveyor in operation, check the following:
Object on Belt – Carefully check for and remove any tools, bolts, nuts, etc. that might have been left on the belt after installation. This is especially important to the return side of belt where the objects may get between the terminal pulleys and belt, thus causing damage to belt.

Automatic Take-ups – See that the pulley revolves freely and the take-up frame slides easily to compensate for variations in belt tension. Use recommended amount of counterweight and adjust if necessary.

Manual Take-ups – Adjust so that the tension will permit the loaded belt to just travel over the terminal pulleys without slipping. Excessive take-up on the belt will cause undue strain on shafting, bearings, and belt splicing. It will also tend to keep the belt from troughing properly.

Belt Training – After the take-ups are properly adjusted and working freely, allow the conveyor to run without load for belt training, which is accomplished by shifting the idlers. Never attempt to train belt by unequal adjustment of screw take-ups as this will disturb the terminal pulley alignment.

Belts will usually fleet (continue to run to one side) toward the idler roll it first touches. To correct fleeting, align the return idlers first, starting with the fourth to sixth idler back (nearest head pulley) of the runout point and work toward the tail pulley. Line up idlers in direction of belt travel. It is better to adjust a number of idlers slightly than adjust one or two a great deal.

With the return idlers positioned, the throughing idlers can be aligned in the same manner, remembering to start in back of, and always work toward the runout point in the same direction of the belt travel.

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