Operate a tracked dozer

DESCRIPTION

Unit Standard (SAQA Reg. No 262729)

A dozer short for bulldozer is a continuous tracked tractor with a substantial wide metal plate (blade) that is mounted to the front of the tractor. Dozers are large and powerful tracked machinery and the tracks provide them with ground holding capability and mobility in all kinds of terrains. The torque divider is designed to transform the engine power in order to enhance the dragging capacity. Commonly a dozer is used to move significant magnitude of soil, sand, debris, obstacles, clear roads and bushes.

Operators who are not adequately trained in tracked dozer operations are at great risk of injury because of their lack of understanding in the principles of operations that allow tracked dozers to move sand, soil, debris and other material.

Successful candidates credited with this unit standard are able to:

Demonstrating knowledge of the functions of a tracked dozer.
Planning for work activities and prepare work area.
Starting and shutting down tracked dozer.
Operating tracked dozer.
Transporting tracked dozer to and from site.

COURSE DURATION:

5 Days Novice
1 Day Re-certification

NQF LEVEL: 2

CREDITS: 15

Quality Assured Partner: Construction Education And Training Authority

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Category: CETA Courses

Detailed Information

Description

The qualifying learner will be able to operate a tracked dozer by understanding the functions of starting, shutting down and operating procedures for the machine. Learners who master the applied competence described in this unit standard will contribute to the development of a professional community of Construction Plant operators. The area of focus of this course will be;

Module 1

Demonstrate knowledge of the functions of a tracked dozer

Parts & Function
Controls & Instruments Overview
Electronic Monitoring System (EMS)
Basic EMS Symbols
Warning Category Levels

Gauge & Indicators on the Instrument Panel

Temperature Gauges
Light Switches
Windshield Wiper/Washers

Heating & Air-conditioning Controls

Fan Control
Temperature Control
Heating & Air-conditioning System Operation

Dozers Main Components

Dozer Blade
Straight Blade
Angle Blade
“U” Blade
Rippers
Winches

Tracks & Track Frame

Track Assembly
Track Chain
Track Shoes
Track Frame
Track Frame Rollers
Front Idler
Recoil Spring
Track Adjusting Mechanism

Module 2

Demonstrate Function of the Tracked Dozer

Operate a Tracked Dozer

Transport Tracked Dozer to and from Site

Dozer Safety
Purpose & Use

General Safety Information

Crushing & Burn Prevention
Fire & Explosion Prevention
Machine Start-up Safety
Engine Start-up & Operating Safety
Machine Operating Safety
Machine Parking Safety
Transporting, Loading & Unloading
Shipping
Machine Towing Safety

Precaution for Maintenance

Workplace Clean & Tidy
Personnel
Attachments
Noise

Precautions

Precaution When Using Hammer
Welding Repairs
Removing Battery Terminals
Precaution With High-Pressure Oil
Handling of High Pressure Hoses
Waste material
Maintenance of Air-conditioners
Compressed Air
Periodic Parts Replacement
Personnel Protective Equipment
Safety Rules

Operating Procedures

Hooter Signals
Road Signs
Safety Risk Controls
Accident Reporting
Breakdown
Direction of Travel
Precaution When Traveling
Precaution When operating a Dozer

Close Down Procedures

Parking the Dozer

Module 3

Start & Shut-down Tracked Dozer

Daily Inspections

Pre-start Checks
Dozer Level Checks
Access & Exit Procedure

Start the Dozer

Starting With an External Air Supply
Cold Engine Idle Procedure
Engine Starting With Jumper Cables
Use of Jumper Cables
Auxiliary Start-up
After Starting the Engine
Secondary Brake Testing
Procedure for Warming-up the Engine
Extreme Care When Leaving Engine Running

Moving-off & Operational Checks

Shutting Down Procedures

Safety Summary

Pre-shift Checklist – Tracked Dozer

Daily Maintenance Service Card

Logbooks & Other Checklists

Module 4

Principles of Operations

Precautions When Operating
Operating Capacity

Module 5

Mechanical Appreciation

Engine

Transmission Types

Manual Transmission
Automatic Transmission

Differentials & Final Drives

Undercarriage

Steering System

Hydraulic System

Hydraulic Reservoir
Strainers & Filters
Hydraulic Pumps
Control Valves
Hydraulic Cylinders
Flexible Hoses
Fuel Systems
Electrical Systems
Storage Battery
Charging System
Lightning System
Braking System

Cooling System

Air Cooled
Liquid Cooling System
Radiator
Radiator Pressure Cap

Proximity of Other Machines

Warning Devises
Oil Pressure Gauge
Air Pressure Gauge
Hydraulic Pressure Gauge
Hydraulic Temperature Gauge
Fuel Level Gauge
Warning Signals
Warning Operations
Safety Features

Troubleshooting

Module 6

Plan for Work Activities and Prepare Work Area

Start and Shut Down Tracked Dozer

Practical Operations

Attachment Controls
Blade Control
Blade Tilt Control
Ripper Control
Parking Brake
Service Brake
Accelerator
Engine Shutdown
Parking/Secondary Brake
Accelerator Pedal
Transmission Direction & Speed Control
Transmission Neutral Lock

Machine Operations

Operating Techniques
Clearing Bush & Trees
Trees with large root systems
Stumping
Removing Rocks and Boulders
Working in Wet Material
Bulldozing
Side by Side Dozing
Slot Dozing
Spreading
Backfilling
Ditching
Sidehill Excavation
Finishing Side Slopes
Push Dozer
Safe Parking
Engine Stopping
Leaving the Machine

General Driving – Types of Hazards

Stationery Hazards
Moving Hazards
Proximity Hazards
Ground Hazards

The System of Vehicle Control

Identify
Predict
Decide
Execute

Entry level requirements into this programme?

All new entrants intended under this code (Novice or Re-licensing) shall provide training institution with the required documents as specified under the National Code Of Practice (NCOP No 43835) Promulgated 23 October 2020

An employer declaration or medical certificate confirming the medical fitness of the learner to undergo the intended training
An eye test results issued by a person trained to carry out such tests
All new entrants intended under this code will be required to hold at least a Grade 9 (Std 7) school certificate
Learners shall provide training institution with a valid certified copy of his/her Identity Document