DETERMINE MAINTENANCE FREQUENCY Consult the original manufacturer’s guidelines. Consider the timing to schedule your maintenance. Will lines or pumps have to be disabled? Select a time when the system is down and use common sense when deciding the time and frequency.
OBSERVATION IS KEY Get to know your system and make a point to observe your pump while it is still running. Make note of leaks, unusual sounds or vibrations and unusual odours.
SAFETY FIRST Make sure machines are properly shut-down before performing your maintenance and/or systems check. Proper isolation is important not only for electrical systems, but for hydraulic systems as well.
MECHANICAL INSPECTION
Check that mounting points are secure
Inspect the mechanical seal and packing
Inspect the pump flanges for leaks
Inspect the couplings
Inspect and clean filters
LUBRICATION Lubricate the motor and pump bearing per the manufacturer’s guidelines. Be sure not to over lubricate. More bearing damage occurs as a result of over greasing than under greasing. If the bearing has a vent cap, remove the cap and run the pump for 30 minutes before reinstalling cap. This will allow excess grease to work its way out of the bearing.
ELECTRICAL/MOTOR INSPECTION
Check that all terminations are tight
Inspect motor vents and windings for dust/dirt build-up and clean according to manufacturer’s guidelines
Inspect starter/contractor for arcing, overheating, etc.
Use a megohmmeter on the windings to check for insulation failure
REPLACE DAMAGED SEALS AND HOSES If any hoses, seals, or O-rings show wear or damage, replace immediately. Using a temporary rubber assembly lubricant will ensure a tight fit and prevent leaks or slips.
