Ensure all users and maintenance personnel are adequately trained on how to safely use and service each piece of equipment.
Dull knives in your granulator cause excessive wear and tear on critical components leading to very costly downtime. A sharp set of knives set to the proper gap always works to your advantage.
Dull knives, worn screens or non-optimal knife gaps can lead to excessive vibration and amp draw. This can also reduce the amount of reusable regrind back into the process, ultimately costing the plant money.
Amp draw can be monitored as an indicator of dulling knives for more predictable maintenance.
Vibration can be monitored as an indicator of dulling knives or imbalance.
Do not resharpen knives beyond their minimum height. Always replace knives when they reach the minimum height.
Periodically check the setting of your bed knife shields. Approximately 1/32” of the bed knives should be uncovered by the knife shield for film, and 1/16” for other materials.
Shredders can be periodically checked for dulling cutters. Most cutters can be rotated for a sharper cutting surface before having to replace.
Periodically inspect all safety devices for functionality
With any rotating machinery, it is always a good idea to periodically check for loosened bolts before startup.
If a jam is encountered, be sure the jam is cleared and the machine is cleaned out before attempting to restart.
Proper air flow is required to evacuate the regrind. If material is building up under the screen(s) check the setting of the damper, it may not be sufficiently open.
Proper drive belt tension is important for many reasons. Check the drive belt tension monthly and adjust according to the instructions in your operators manual.
Follow local lock-out/tag-out procedures as required.