Tracked Dozer Operation Skills For Construction Training

Objectives:
• Understand the role of tracked dozers in construction.
• Identify key safety regulations and personal protective equipment.
• Describe basic machine components and controls.
• Explain the importance of pre-start inspections.

Topics:
• Overview of tracked dozer applications in construction.
• Health and safety legislation (OHS Act, construction regulations).
• Personal protective equipment requirements.
• Machine familiarisation: engine, undercarriage, blade, ripper.
• Operator's manual and controls introduction.
• Pre-start inspection procedures.
• Daily logbook and reporting.

Objectives:
• Identify major machine systems (hydraulic, powertrain, electrical).
• Perform pre-start checks correctly.
• Demonstrate start-up and shut-down procedures.
• Execute basic forward and reverse travel.

Topics:
• Engine and cooling system basics.
• Hydraulic system components and functions.
• Powertrain: torque converter, transmission, final drives.
• Electrical system and instrumentation.
• Pre-start walk-around checklist.
• Starting and warming up the engine.
• Steering and braking controls.
• Straight-line travel in forward and reverse.

Objectives:
• Operate blade lift, tilt, and angle controls.
• Perform simple dozing operations on flat ground.
• Maintain blade depth and level cuts.
• Understand blade types and their uses.

Topics:
• Blade control functions: lift, tilt, angle, pitch.
• Blade types: straight, semi-U, U-blade.
• Dozing technique: cutting, carrying, spreading.
• Maintaining blade depth with float position.
• Level dozing on level terrain.
• Safety around blade operations.
• Common errors and corrections.

Objectives:
• Execute precise steering using clutch-brake and differential steer.
• Perform pivot turns and reverse manoeuvres.
• Navigate around obstacles safely.
• Apply correct steering for slope work.

Topics:
• Steering systems: clutch-brake vs. differential steer.
• Pivot turns, counter-rotation, and gradual turns.
• Manoeuvring in confined spaces.
• Forward and reverse directional changes.
• Steering on side slopes.
• Avoiding track slippage.
• Practical exercises on marked courses.

Objectives:
• Demonstrate cutting techniques for excavation.
• Perform fill and spread operations.
• Achieve grade tolerance within construction specs.
• Understand soil types and their effect on dozing.

Topics:
• Excavation dozing: slot dozing, side-by-side dozing.
• Fill dozing: spreading and compacting.
• Soil identification: cohesive, granular, rock.
• Adjusting technique for soil moisture.
• Grade control using blade and visual references.
• Working with survey stakes.
• Practical exercise: cut and fill a defined area.

Objectives:
• Identify ripper types and applications.
• Perform safe ripping techniques.
• Choose ripper depth and speed for material.
• Integrate ripping with dozing cycles.

Topics:
• Ripper types: single shank, multi-shank.
• Ripping patterns: parallel, cross-ripping.
• Depth and speed selection.
• Ripping rock and hard clay.
• Ripper maintenance and wear.
• Combining ripping and dozing for efficiency.
• Safety during ripping operations.

Objectives:
• Operate dozer safely on uphill and downhill slopes.
• Maintain machine stability on side slopes.
• Cut and fill to specified grades.
• Use blade to achieve consistent slope angles.

Topics:
• Slope safety: stability, tipping lines.
• Uphill dozing techniques.
• Downhill dozing and braking.
• Side slope operation: blade positioning.
• Grade control using laser or string line.
• Cut and fill on slopes.
• Practical exercise: create a ramp at 3:1 slope.

Objectives:
• Coordinate with other dozers in push-pull operations.
• Communicate using hand signals and radio.
• Maintain safe distances during tandem work.
• Optimise production with two machines.

Topics:
• Tandem dozing benefits and risks.
• Push-pull techniques.
• Communication protocols: hand signals, radios.
• Spacing and timing.
• Blade overlap and alignment.
• Safety in multi-machine environments.
• Practical exercise: tandem dozing of a stockpile.

Objectives:
• Support loading operations by dozing material to loaders.
• Build stockpiles and windrows.
• Maintain loading area for efficiency.
• Understand interaction with haul trucks.

Topics:
• Feeding material to loaders.
• Stockpile construction and management.
• Windrow dozing for road construction.
• Loading area preparation and maintenance.
• Spotting for trucks.
• Avoiding loader collisions.
• Practical exercise: support a loading cycle.

Objectives:
• Perform vegetation clearing and grubbing safely.
• Separate topsoil and debris.
• Stack brush and debris for disposal.
• Apply environmental controls.

Topics:
• Clearing techniques: blade work for trees and brush.
• Grubbing: removing roots and stumps.
• Topsoil stripping and stockpiling.
• Debris management and burning regulations.
• Environmental protection: silt fences, erosion control.
• Safety around falling objects.
• Practical exercise: clear a designated area.

Objectives:
• Achieve fine grade tolerances within ±20 mm.
• Use blade adjustments for smooth finish.
• Work with grade stakes and laser levels.
• Perform final trim passes.

Topics:
• Fine grading techniques: backblading, float pass.
• Laser grade control systems.
• Using string lines and grade stakes.
• Achieving drainage slopes.
• Smoothing and compacting final surface.
• Quality checks with level and straightedge.
• Practical exercise: fine grade a 10x10 m pad.

Objectives:
• Operate safely on soft, wet, or unstable ground.
• Use matting or corduroy roads.
• Prevent bogging and track slippage.
• Recover a stuck dozer.

Topics:
• Soft ground challenges: sinkage, loss of traction.
• Use of timber mats and geotextiles.
• Operating techniques: low ground pressure.
• Track slip detection and correction.
• Self-recovery methods: winching, cribbing.
• Safety in boggy conditions.
• Practical exercise: traverse a soft area.

Objectives:
• Perform light demolition using dozer blade.
• Handle and sort debris safely.
• Understand structural collapse risks.
• Apply dust suppression methods.

Topics:
• Demolition techniques: pushing walls, breaking concrete.
• Debris sorting: metal, concrete, wood.
• Working with excavator and loader support.
• Dust control: water sprays, PPE.
• Hazard identification: rebar, unstable structures.
• Safety zones and exclusion areas.
• Practical exercise: demolish a low wall.

Objectives:
• Excavate trenches and backfill pipelines.
• Maintain trench stability and spoil placement.
• Work alongside other construction equipment.
• Comply with trench safety regulations.

Topics:
• Trench excavation for pipelines.
• Spoil placement: side casting, stockpiling.
• Backfilling and compaction.
• Trench safety: sloping, shoring, barricades.
• Working with pipelayers and compactors.
• Avoiding utility strikes.
• Practical exercise: excavate and backfill a trench.

Objectives:
• Prepare subgrade to specified crossfall and levels.
• Compact subgrade with dozer tracks.
• Coordinate with graders and rollers.
• Test subgrade density and moisture.

Topics:
• Subgrade preparation: cutting, filling, compaction.
• Achieving crossfall and camber.
• Using dozer for proof rolling.
• Moisture control and compaction testing.
• Working with graders for fine shaping.
• Quality control: levels, density tests.
• Practical exercise: prepare a 50 m road subgrade.

Objectives:
• Manage stockpiles for efficient loading.
• Blend materials by dozing layers.
• Maintain stockpile stability.
• Operate safely near crushers and conveyors.

Topics:
• Stockpile building: cone, windrow, layered.
• Blending materials: dozing layers.
• Reclaiming material for crusher feed.
• Stockpile safety: ramps, edges.
• Working near crushers and conveyors.
• Dust and noise control.
• Practical exercise: build and reclaim a stockpile.

Objectives:
• Apply slot dozing for increased production.
• Perform side cutting for drainage.
• Optimise cycle times.
• Calculate production rates.

Topics:
• Slot dozing: creating and using slots.
• Side cutting: V-ditching, drainage channels.
• Production estimation: cycles per hour, volume.
• Factors affecting production: distance, material.
• Efficiency tips: blade load, gear selection.
• Practical exercise: slot doze a 100 m course.

Objectives:
• Identify common mechanical issues.
• Perform daily and weekly maintenance.
• Troubleshoot hydraulic, electrical, and powertrain problems.
• Replace wear parts like cutting edges.

Topics:
• Daily maintenance: fluids, filters, tracks.
• Weekly maintenance: greasing, bolt checks.
• Common issues: overheating, loss of power.
• Hydraulic troubleshooting: leaks, slow response.
• Undercarriage wear and adjustment.
• Replacing blade cutting edges.
• Safety during maintenance.

Objectives:
• Conduct a risk assessment for dozer operations.
• Apply environmental controls (spills, dust, noise).
• Implement emergency procedures.
• Understand legal compliance requirements.

Topics:
• Risk assessment methodology (HIRA).
• Site-specific hazards: traffic, overhead lines, underground services.
• Environmental management: spill kits, dust suppression.
• Emergency procedures: fire, rollover, entrapment.
• Legal compliance: OHS Act, SANS codes.
• Documentation: permits, checklists.
• Practical exercise: complete a risk assessment.

Objectives:
• Demonstrate all skills in a simulated construction task.
• Complete a timed dozing operation to specification.
• Perform pre-start, operation, and shutdown safely.
• Review key learning and receive feedback.

Topics:
• Integrated practical task: clear, grade, and stockpile.
• Assessment criteria: safety, accuracy, efficiency.
• Timed operation with quality checks.
• Oral questioning on theory and safety.
• Feedback session and improvement plan.
• Course review and certificate preparation.
• Final Q&A.