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Maintenance

1.4.19 Timing Belt Inspection

Maintenance Schedule

Inspect every 750K cycles.

Procedure

Inspect all timing belts for wear, missing teeth, frayed edges, and cracks. For

replacement, see Belt Replacement on page 4-69.

Check for proper deflection of belts. The belts should be slightly loose with

approximately 1/4” deflection [1]. Belts that are too loose will not drive properly

and belts that are too tight can wear out prematurely or damage their driven

components. Five belts have tensioners, it is these five belts that should be

checked.

[1]

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GBC AdvancedPunch Specifications

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