Water /Wastewater Mechanical Maintenance Program

Introduction and Overview

Objectives and contents of the Course
Operation and Purpose of a Waste Water Treatment Plant
Blueprint reading

General Safety Practices

Safety Equipment
Overview of applicable OSHA regulations and guidelines

Pumps
Pump Physics

Pump curves

Proper pump selection and maintenance issues on each type (including seals and pump packing)

Types of Pumps

Centrifugal Pumps

Frame mounted

Shaft Alignment

Couplings

Close coupled

Vertical turbine

Positive Displacement Pumps

Rotary
Diaphragm
Progressing Cavity

Valves – design and use of Valves

Ball
Gate
Plug
Check – Swing

Lift

Ball
Butterfly
Valve maintenance

Gates- design and use of Gates

Sluice
Weir
Slide
Waste Water Treatment

Air Compressors

Compressor theory and types

Rotary

Reciprocating

Blowers

Blower physics and laws of air movement
Centrifugal
Positive displacement (rotary lobe)

Material conveyers

Screw conveyers
Belt conveyers

Mixers

Submersible
Extended shaft

Screening Equipment

Comminutors

Bar screens

Mechanical Drives

Power transmission physics and formulas
Shafts, Key ways and Key seats
Gearing and Gear boxes
Chain Drives
Belt drives
Couplings
Bushings

Lubrication basics

Oil
Viscosities
Flash Point
Cloud and pour points
Uses and manufacture's recommendations
Grease
NLGI number (softness or hardness)
Shear stability
Dropping point
Penetration
Types, uses and manufacture's recommendations
Waste Water Treatment

Preventative Maintenance and Trouble-shooting

A discussion out-lining a preventative maintenance program with step-by-step procedures.

Using actual equipment (to be determined) for a “hands on” demonstration.

Skills tests “Hands – On” Procedures

Pipefitting and maintenance plumbing procedures will demonstrated by the attendees by fabricating various piping designs with blueprints as a guide

Shaft alignment procedures will be demonstrated by attendees on actual equipment