Correct Use of Mechanised Equipment for Difficult Terrain Harvesting
Transcript of Correct Use of Mechanised Equipment for Difficult Terrain Harvesting
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Correct Use of Mechanised Equipment for
Difficult Terrain Harvesting
The practical Do’s and Don’ts
Eugene Schoeman
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Definition of “difficult”:
S.P.E.Q.S
• Safety
• Productivity
• Environment
• Quality
• Social
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Risk assessment • Continuous risk assessments take place during
harvesting operations.
• Planning and risk assessment is the same thing: Operational harvest plan at compartment level.
Daily planning
Continuous observation
System cut-off
Planting lines
Contour lines
Roads
Slope: 0% – 20%
Slope: 20% – 35%
Slope: > 35%
SMZ’s
Landing
! Wet area
Rocky area
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Typical high risk (difficult) factors
• Safety ▫ Oversized trees ▫ Power lines or telephone lines ▫ Windfalls ▫ Dead trees ▫ Cliffs to be considered and rocky outcrops ▫ Mine shafts or other sub terrainian cavities ▫ Fire risk ▫ Terrain restrictions: Slope Ground conditions Ground roughness
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Typical high risk (difficult) factors
• Environmental
▫ Visual impacts
▫ Sensitive soils
▫ Riparian zones
▫ Indigenous forest present
▫ Other SMZs or ASIs present?
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Typical high risk (difficult) factors
• Social
▫ Public access problematic (recreation, fire wood)
▫ Public roads adjacent to compartment
▫ Will noise/dust/transport affect stakeholders?
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Some key mitigation measures for harvester
• Traction or stability of the machine while climbing. • Track-Position-Work. • Caution when handling stems at full reach on a
slope. • Clear debris in front of the machine while climbing a
slope. • Always try to climb straight up and down a slope,
especially on rocky ground. • Don’t brake if machine slides down a slope. • Work close to the machine. • Correct running direction of chain. • Adhere to safe operating procedures.
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Case study: Harvester
Source: Tigercat
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Some key mitigation measures for forwarders
• Turn the machine around when empty.
• Working a hill with a flat spot at the top.
• The use of the uprights.
• Maintain correct distance from the pile at roadside.
• Unloading using the 3-2-1 method.
• Always travel straight up and down a hill.
• Haul smaller loads up steep slopes.
• Ensure proper tension on the tracks.
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GENERAL COMPARTMENT INFORMATION
landing area soft areas
planting lines
300m
250m
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CASE STUDY: FORWARDER - TRAVELLING IN THE COMPARTMENT,
EXAMPLE 1/6
THE TIMBER IS EXTRACTED USING THE SHORTEST ROAD (ON
STRIPROAD), ALWAYS LOADING FACING THE EXIT
HALF BLOCK /
EXTRACTION DISTANCES
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CASE STUDY: FORWARDER - TRAVELLING IN THE COMPARTMENT,
EXAMPLE 2/6
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CASE STUDY: FORWARDER - TRAVELLING IN THE COMPARTMENT,
EXAMPLE 3/6
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CASE STUDY: FORWARDER - TRAVELLING IN THE COMPARTMENT,
EXAMPLE 4/6
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CASE STUDY: FORWARDER - TRAVELLING IN THE COMPARTMENT,
EXAMPLE 5/6
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CASE STUDY: FORWARDER - TRAVELLING IN THE COMPARTMENT,
EXAMPLE 6/6
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ALWAYS TRAVEL ON THE EXTRACTION ROUTES!
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CONCLUSION
• Proper planning/risk assessment
• S.P.E.Q.S
• Proper mitigation measures for Harvesters/Forwarders
• MORE PRODUCTION!!!!!!!!
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Thank you!
Website: www.cmo.co.za/index.php