MCCCD Official Course Competencies:

IRW150  1995 Spring – 2009 Spring

Rigging I

1.

Describe the history and machine principles of rigging as applied to iron work. (I)

2.

Identify the parts, types, and grades of fiber rope and describe the affects of load and temperature on fiber rope. (II)

3.

Calculate the safe working loads of fiber rope and manipulate and maintain fiber rope in a safe condition. (II)

4.

Tie knots, bends, and hitches and splice fiber rope properly. (II)

5.

Describe the types of blocks and their applications in rigging systems. (II)

6.

Identify the parts, types, grades, lay and length of wire rope. (III)

7.

Describe the effects of fatigue and abrasion on the safe of wire rope and inspect, maintain and manipulate wire rope safely. (III)

8.

Calculate the maximum safe working load for wire rope configurations. (III)

9.

Select the appropriate sheave for a wire rope and inspect the alignment. (III)

10.

Identify and attach swaged sockets, cappel sockets, and wedge sockets. (III)

11.

Properly perform a flemish eye-splice, nash splice, and logger's splice. (IV)

12.

Given a safety table, calculate the maximum safe working load for steel chain and inspect, maintain and use chain properly. (V)

13.

Identify the various types of hardware used in rigging and use and maintain rigging hardware properly. (VI)

14.

Determine the line requirements and the maximum working load for a given reeving arrangement and rig two though thirteen part reeve systems correctly. (VII)

15.

Determine the number of persons required to hoist a load with a vertical or horizontal pull line. (VII)

16.

Calculate the estimated safe working load for specific sling configurations. (VIII)

17.

Select the appropriate rope sling or web sling configuration for a jab application. (VIII)

18.

Store all types of slings properly. (VIII)

MCCCD Official Course Outline:

IRW150  1995 Spring – 2009 Spring

Rigging I

I. Rigging

A. History

B. Machine Principles

II. Fiber Rope

A. Parts

B. Construction

1. Hard-Laid

2. Soft-Laid

C. Types

1. Natural

2. Synthetic

D. Core

E. Rope and Line Configurations

F. Manila Rope Grades

G. Maintenance

H. Synthetic Rope

1. Characteristics

2. Selection

I. Condition Effects

1. Loads

2. Temperature

J. Calculating Load

1. Safety Factor

2. Breaking Strength

K. Manipulation and Maintenance

1. Coiling and Uncoiling

2. Whipping Ends

3. Storing

4. Inspection

L. Thimbles

M. Connecting

1. Knots

2. Bends

3. Hitches

4. Splices

N. Blocks

1. Types

2. Applications

III. Wire Rope

A. Selection

1. Requirements

2. Design Characteristics

B. Parts

C. Description

1. Terms

2. Measurements

D. Grades

E. Strand Classification

F. Rope Lay and Length

1. Regular

2. Lang

3. Alternate

4. Right and Left

5. Herringbone or Twin Strand

G. Performing

1. Effect

2. Purpose

H. Cores

I. Diameter

J. factor

1. Fatigue

2. Abrasion

3. Safety

K. Safe Working Loads

L. Non-Rotating Wire Rope

1. Purpose

2. Precautions

M. Manipulations

1. Removing

2. Unwinding

3. Winding

4. Cutting

N. Spool Capacity

O. Sheaving

1. Selection

2. Alignment Inspection

P. Grove Angle

Q. Fleet Angle

R. Idlers

S. Reverse Bending

T. Inspection and Maintenance

1. Damage

2. Lubrication

U. Sockets

1. Swaged

2. Cappel

3. Wedge

IV. Splicing Wire Rope

A. Tools

1. Endless Rope

2. Thimble

3. Loop

B. Preparation

C. Splicing

1. Flemish Eye-Splicing

2. Nash Splice

3. Logger's Splice

V. Chain

A. Application

B. Safe Working Load

C. Inspection

D. Care and Use

VI. Rigging Hardware

A. Drums

1. Performance Characteristics

2. Spooling Rope

3. Selection

B. Sheaves

1. Poor Maintenance and Improper Sheave Effects

2. Installation of Cable Keepers

3. Inspection

4. Methods for Reducing Contact Pressure

C. Hooks

1. Loads

2. Choker Hooks

D. Shackles

1. Chain

2. Anchor

3. Selection

E. Eye Bolts and Ring Bolts

1. Shouldered

2. Shoulderless

F. Spreaders

G. Equalizer Beams

H. Blocks

1. Parts

2. Functions

3. Types

4. Selection

5. Inspection

VII. Reeving

A. Line Requirements

B. Load

C. Line Pull

D. Blocks

1. Reeved System

2. Laced System

E. Rigging

F. Compound Tackle Systems

G. Persons Required

1. Vertical Pull Line

2. Horizontal Pull Line

VIII. Slings

A. Configurations

B. Sling Angles

C. Safe Working Load

D. Measurement

E. Selection

F. Synthetic Webbing Slings

1. Advantages

2. Protection Devices

3. Safe Working Load

4. Selection

G. Chain Mesh Slings

1. Gauge

2. Purpose

3. Selection

H. Wire Rope Sling

I. Storage