210-1 general safety procedures - transit training€¦ · review slide18 and describe the upper...

211: Escalator-Specific: Handrail Installation and Maintenance

Module 2: Handrail Drive Systems

Instructor/Participant Guide

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Table of Contents:

Introduction ...................................................................................... 1 Choose a Case ............................................................................ 2 Handrail Speed ............................................................................ 3 Conventional Chain Drive ............................................................ 4 Handrail Transmissions................................................................ 5 Handrail Profiles .......................................................................... 6 Drive Types .................................................................................. 7 Handrail Track Guides ................................................................. 8 Spliced Handrails ......................................................................... 9 Drive Sheave ............................................................................. 10 Adjustments ............................................................................... 11 Newels ....................................................................................... 12 Inlet ............................................................................................ 13 Tools .......................................................................................... 14

Summary ....................................................................................... 15

Table of Figures:

Figure 1: C Groove Handrail ............................................................ 7 Figure 2: V Groove Handrail ............................................................ 7 Figure 5: Drive Sheave .................................................................. 10 Figure 3: Pinch Roller Adjustment .................................................. 11 Figure 4: Newels ............................................................................ 12


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Icons Used in This Guide

Throughout the Instructor’s Guide, the following icons indicate the type of content being presented.

Refer To

PowerPoint

Multimedia

Web based Training

Write

Ask

Individual Activity

Small Group Activity

Classroom Activity

Duration

Agenda

Topic No. Topic Title Duration

1 Introduction 5 minutes

2 Handrail Speed 10 minutes

3 Handrail Transmissions

Conventional

Modular

Positive

30 minutes

4 Handrail Profiles 10 minutes

5 Drive Types 15 minutes

6 Handrail Track Guides 10 minutes

7 Spliced handrails

Binding

20 minutes

8 Drive Sheave 10 minutes

9 Adjustments

Tension Adjustments

Pinch Roller Adjustments

20 minutes

10 Newels 20 minutes

11 Inlets

Brushes

Doors

20 minutes

12 Summary 5 minutes

Total Time: 3 hours


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Overview

Purpose The purpose of this module is to:

Introduce participants to Escalator-Specific: Handrail Installation and Maintenance.

Objectives At the end of this chapter, the learner will be able to:

Identify the handrail drive systems and component parts used in various transit escalators.

Determine the types of handrails and installation methods (loop and splice) for various transit escalators.

Demonstrate the ability to perform wheel (roller) removal and replacement procedures for different types of steps on transit escalators.

Materials Make sure you have the following:

Laptop (one for leader)

Participant Guides

PowerPoint slide deck

LCD projector

A17.2 Guide for Inspection of Elevators, Escalators and Moving Sidewalks

A17.3 Safety Code for Existing Elevators and Escalators

Heavy Duty Transportation System Escalator Design Guidelines (APTA RT-RP-FS 007-02)

Transit Agency Handbook

Preparation PREPARE flip charts with the following titles:

Class Expectations


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Instructor’s Notes

Slide 1

Slide 2

WELCOME the participants to the Escalator-Specific: Handrail Installation and Maintenance Handrail Drive Systems Module.

ASK the participants what their expectation is of the course.

WRITE their expectations on the board so they can see how they align to the course objectives.

REVIEW the objectives on Slide 2.

Introduction

Welcome to the Escalator-Specific: Handrails Drive Systems Module.

What are your expectations for this module?

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Slide 3

CLASS ACTIVITY – Choose a Case.

ASK for a volunteer to pick a case. Click on the case chosen and ask the participants if the item held within will be used with handrail drive systems.

ANSWERS:

1. Yes 2. No 3. No 4. No 5. Yes 6. Yes 7. Yes 8. No

Choose a Case

Which of these items would be used on handrail drive systems?

1. _______

2. _______

3. _______

4. _______

5. _______

6. _______

7. _______

8. _______




Slide 4

Slide 5

REVIEW slides 4 and 5 and review the specifics on handrail speed.

ASK

What potential hazard could occur if the handrail and step speeds are out of sync?

What monitors the handrail speed?

Handrail Speed

What potential hazard could occur if the handrail and step speeds are out of sync?

_______________________________________________

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_______________________________________________

_______________________________________________

What monitors the handrail speed?

_______________________________________________

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Slide 6

REVIEW slides 6 and review the Chain Drive

ASK

List the characteristics of a conventional chain drive.

Conventional Chain Drive

List the characteristics of a Chain Drive

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_______________________________________________

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Slide 7

Slide 9

REVIEW slides 7 to 9 on handrail transmissions.

ASK the participants to list characteristics of the Conventional, Modular, and positive Drives.

Handrail Transmissions

List the characteristics of the following handrail transmissions:

Conventional:

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Modular: _______________________________________________

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Positive: _______________________________________________

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Slide 10

REVIEW slide 10 and elaborate on handrail profiles.

ASK participants how handrail profiles differ.

Handrail Profiles

Are handrail profiles typically the same? _______________________________________________

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If not, what differs between them?

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Slide 11

REVIEW slide 11 and describe the differences in drive types.

ASK:

What is the purpose of having a V Groove drive type?

Drive Types

Figure 1: C Groove Handrail

Figure 2: V Groove Handrail




Slide 12

REVIEW slide 12 and discuss how handrail track guides are used.

ASK: How many handrail guide tracks will an escalator have?

Handrail Track Guides

How many handrail guide tracks will an escalator have?

_______________________________________________

_______________________________________________

_______________________________________________




Slide 13

Slide 14

REVIEW slides 13 and 14 in the PowerPoint presentation to discuss splicing and binding of handrails.

ASK: What is the difference between splicing and binding?

Spliced Handrails

What is the difference between splicing and binding?

_______________________________________________

_______________________________________________

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Slide 15

REVIEW slide 15 and review the characteristics and functions of the drive sheave.

ASK participants to describe how the drive sheave operates.

ACTIVITY: If available, have participants view an operating drive sheave on an escalator. Have a volunteer indicate the various features of the sheave.

Drive Sheave

Figure 3: Drive Sheave




Slide 16

Slide 17

REVIEW slides 16 and17 and review the tension and pinch roller adjustment procedures.

ASK: Are all escalator handrail’s tension, adjusted in the same manner?

Adjustments

Are all escalator handrail’s tension adjusted in the same manner?

_______________________________________________

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Figure 4: Pinch Roller Adjustment




Slide 18

REVIEW slide18 and describe the upper and lower newels.

ASK participants to describe the purpose of having newels.

Newels

Figure 5: Newels




Slide 19

Slide 20

REVIEW slides 19 and 20 and explain inlet doors and brushes.

ASK: What is the difference between the inlet brushes and the inlet doors?

Inlet

What is the difference between the inlet brushes and the inlet doors?

_______________________________________________

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Slide 21

REVIEW slide 21 and discuss the proper tools used on the handrail drive system.

ASK participants to identify the specialty tool for handrail drive systems.

Tools

What are the characteristics of the handrail drive system specialty tool?

_______________________________________________

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Slide 22

REVIEW slide 22 and summarize the module.

ASK the participants if they have any outstanding questions on what was presented.

Summary

210-1 general safety procedures - transit training€¦ · review slide18 and describe the upper...

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