210-1 General Safety Procedures - Transit Training€¦ · REVIEW slide18 and describe the upper...
Transcript of 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
HHaannddrraaiill DDrriivvee SSyysstteemmss
ii IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
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
HHaannddrraaiill DDrriivvee SSyysstteemmss
iiii IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
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
HHaannddrraaiill DDrriivvee SSyysstteemmss
iiiiii IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
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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Instructor’s Notes
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. _______
HHaannddrraaiill DDrriivvee SSyysstteemmss
33 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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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Instructor’s Notes
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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Instructor’s Notes
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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HHaannddrraaiill DDrriivvee SSyysstteemmss
66 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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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HHaannddrraaiill DDrriivvee SSyysstteemmss
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Instructor’s Notes
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
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88 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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?
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Instructor’s Notes
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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1100 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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
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1111 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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
HHaannddrraaiill DDrriivvee SSyysstteemmss
1122 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
Slide 18
REVIEW slide18 and describe the upper and lower newels.
ASK participants to describe the purpose of having newels.
Newels
Figure 5: Newels
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1133 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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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1144 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
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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HHaannddrraaiill DDrriivvee SSyysstteemmss
1155 IInnssttrruuccttoorr//PPaarrttiicciippaanntt GGuuiiddee
Instructor’s Notes
Slide 22
REVIEW slide 22 and summarize the module.
ASK the participants if they have any outstanding questions on what was presented.
Summary