Preventive Maintenance Procedures Flashcards

What is the primary purpose of lubrication in preventive maintenance?

Answer: To reduce friction and wear between moving parts

Lubrication reduces friction and wear between moving parts, extending equipment life and preventing premature failure.

Which document type provides the manufacturer's recommended PM intervals and procedures for specific equipment?

Answer: Original Equipment Manufacturer (OEM) manual

OEM manuals specify manufacturer-recommended maintenance intervals, lubrication types, torque values, and inspection criteria.

A technician notices a slight vibration on a pump that was not present during the last PM. What is the BEST immediate action?

Answer: Document it and notify the maintenance supervisor

New vibrations should be documented and reported so they can be investigated and corrected before causing equipment failure.

What is the purpose of a PM checklist?

Answer: To ensure all required tasks are consistently performed and documented

PM checklists ensure every required task is performed consistently and provide a documented record of completed maintenance activities.

When should a technician calibrate a pressure gauge during a PM activity?

Answer: When readings deviate from known reference values or per the calibration schedule

Gauges should be calibrated when readings deviate from references or according to a scheduled calibration interval to ensure accuracy.

Which type of bearing failure is most commonly caused by inadequate lubrication?

Answer: Adhesive wear and scuffing

Inadequate lubrication leads to metal-to-metal contact, causing adhesive wear and scuffing on bearing surfaces.

What action should be taken BEFORE performing PM on a rotating piece of equipment?

Answer: Apply lockout/tagout (LOTO) to isolate energy sources

LOTO must be applied before any PM work on rotating equipment to prevent accidental startup and protect the technician.