December Monthly Maintenance Tip: Perform Daily Checks of Safety Equipment, Hydraulic Fluids, and Filter Cloth

Maintenance Tip of the Month – December 

Preventative Maintenance, including regular daily checks and routine attention to components, will prevent later headaches. Daily Operator-performed checks make excellent operational and financial sense!

Micronics recommends that the following be checked DAILY:

1. Safety Light Curtain

Operator safety is critical, and safety light curtains provide a non-contact, invisible safety wall. Ensure that the safety light curtain is not damaged and that the transmitter & receiver are functioning as expected. Clean the lenses with a soft, lint-free rag. Brackets should be correctly secured. With a properly operating safety light curtain, an opaque object (e.g., a person) will break the light beam, causing all filter press activities to stop. If you find a defective safety device during your inspection, lock out the press and perform service on the unit immediately.

2. Mechanical Safety Guards

Take care to ensure that safety guards are in place and all hardware required to secure them are present and tight.

3. Fluid Level in the Hydraulic Power Unit

An improper oil level may lead to HPU inefficiency. It is a good practice to check the fluid level in the HPU daily.

4. Cleanliness of Hydraulic Oil

Ensuring the hydraulic oil is clean is critical to filter press performance. Contaminated oil can cause damage to components and potentially lead to system failure. Again, it is a good practice to check the cleanliness of the oil daily as a preventative measure.

5. Filter Cloths

Inspect and ensure all cloths in the plate stack are clean and not ripped, torn, creased, or containing holes. If any cloths in the plate stack are damaged, carefully replace them.

6. Absence of Hydraulic Fluid leaks

Leaks can signal a damaged cylinder or damaged/worn cylinder seals. Visually inspect fittings for leaks. Inspect all hydraulic hoses for leaks, bulging, and dry rot. Daily inspection to ensure the absence of leaks is critical to your filter press operation.

7. No Missing or Corroded Nuts, Screws, Washers, or Bolts

Tighten anything that needs tightening and replace anything that needs replacing. When the bolts are at proper torque, add a baseline mark that can serve as an easy-to-spot indicator for ongoing checks.

8. Hydraulic Clamping Pressure

Check that the Hydraulic Clamping Pressure is correct for your press. The Hydraulic Clamping Pressure needs to be high enough to withstand the pressure created by the slurry feed pump pushing slurry into the chambers between the plates. Cycle time is, of course, affected by slurry pump feed pressure, so this is an important parameter to ensure optimal press efficiencies.

Contact Us for Filter Press Replacement Parts, Spare Parts, and Replacement Filter Press Cloth.

Contact Micronics regarding expert on-site field service, an on-site preventative maintenance audit, overhauling your hydraulic power unit (HPU), and troubleshooting assistance.

Remember that a Preventative Maintenance Program – including Daily Checks By Press Operators – is a key ingredient to a trouble-free filter press operation!