From Maintenance Planning and Scheduling Handbook, Second Edition

The previous chapters have described the principles underlying effective planning and scheduling. This chapter describes exactly what a planner does in the context of the preceding chapters. The chapter follows the entire actual planning process including areas such as how a planner scopes a job, what a planner writes on a work order form, and how a planner files.

More magazine articles have described the concepts of maintenance planning than have described exact steps a planner might take to fulfill those concepts. This may be because there are often many different options for exact steps. Nevertheless, many programs with the right concepts have failed due to difficulty in determining how to execute the concepts. Therefore, this book undertakes the obligation to describe exact steps to clarify the role of a planner to fulfill the concepts. The following sections describe specific planner actions. After understanding what is necessary to execute the principles of planning, readers may implement alternative steps than the ones prescribed. The following sections address some of the considerations involved to allow readers to tailor their own systems appropriately. In this manner, this chapter covers the question: "Exactly what does a planner do?"

Before examining the basics of hands-on planning, observe a planner through a normal work day. This company has a correctly established planning organization. Read the following illustration with the principles and concepts affecting planning identified in parentheses.

A Day in the Life of a Maintenance Planner

Maintenance Planner David Clemons came in to work on Wednesday...

Copyright Richard D. Palmer 2006 under license agreement with Books24x7

Products & Services
Motor Controllers
Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors. They include a power supply, amplifier, user interface, and position control circuitry.
Motor Speed Controllers
Motor speed controllers are electronic devices that control motor speed. They carry specifications for drive type, product classification, electrical ratings, and operating parameters.
Stepper Motor Drives
Stepper motor drives power unipolar and bipolar stepper motors in full step, half step, and microstep motion control applications.
Linear Actuators
Electric linear actuators have an output rod that provides linear motion via a motor driven ball screw, lead screw, or ACME screw assembly. The actuator's load is attached to the end of a screw or rod and is often unsupported.
AC Motors
AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.  

Topics of Interest

This chapter continues the nuts and bolts of making the planning system work with regard to scheduling. The chapter shows exactly how to do a practical method of scheduling. In actual practice, it...

Protection and Ratings Motor Protection The typical method of starting a three-phase induction motor is by connecting the motor directly across the power line. Line starting a motor is done with a...

Methods for sizing motors, selecting drives and controllers, and using design rules for reducing cogging torque, help motion control engineers build more accurate, efficient, and reliable systems.

The goal of an effective motor overload protection scheme is to protect the motor from damage while allowing it to operate normally up to its thermal limit. Ideally such a scheme would be based on a...

Field-oriented control boosts servomotor torque and delivers a flatter torque-speed curve. Accelus amplifiers provide up to ±18-A peak current for rapid motor acceleration and ±6-A...