Specifications

Document No. DER05022
Effective Date 25 May 07
Page No. 1 of 10
PREVENTIVE MAINTENANCE
DE-1000 CENTRIFUGE - GEARBOX DRIVE
GENERAL
Preventive maintenance consists of overall inspection, cleaning, and lubrication. Routine
maintenance will ensure maximum life and trouble-free operation. While the maintenance
schedule presented in this section is not rigid, modifications should be based on experience with
operating the equipment at your facilities. A maintenance log using document
DER13000 should
be kept to help establish a routine maintenance schedule, as well as to monitor and adjust the
schedule as necessary throughout the equipment’s life.
Consider the following factors when establishing a maintenance schedule:
• Duty cycle
• Ambient temperature
• Operating environment
Following is the recommended routine maintenance schedule:
PREVENTIVE MAINTENANCE SCHEDULE
Action Frequency
Inspect feed tube connection for leaks, and tighten connection clamp as
required.
Each shift
Inspect liquid discharge connection for leaks. Tighten connection and/or
add silicone sealant to prevent leakage.
Each shift
Grease rotating assembly bearings (Figure 5022-1). One shot each shift
Remove feed tube, clean interior of tube, and reinstall. Weekly
Check gearbox fluid level with fill plug at 12 o’clock position. Every 2 weeks
Check fluid coupling level with fill plug at 12 o’clock position. Every 2 weeks
Check interior and exterior of case for accumulated solids, and clean as
required.
Weekly
Purge conveyor bearings Every 2 weeks
Remove belt cover, inspect belt for damage, and check/adjust tension. Monthly
Remove and clean flinger covers Monthly
Check overload release clutch torque setting Every 250 hours
Grease overload release clutch Every 1000 hours