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Operating in the rain

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Toolbox Talk: Operating in the Rain

Date: [DATE] Duration: [DURATION] minutes Presenter: [PRESENTER NAME] Location: [LOCATION]

Objective

To educate participants on the safety precautions and procedures necessary for operating machinery safely in rainy conditions, ensuring both personal safety and the integrity of the equipment.

Introduction

Operating machinery in the rain presents unique challenges and hazards. Wet conditions can lead to unstable ground, reduced visibility, and increased risk of equipment malfunction. Understanding how to navigate these conditions is crucial for maintaining safety on the job site.

Presenter Note: Engage the audience by asking if anyone has personal experience operating machinery in the rain.

Key Points

  • Ground Stability: Rain can cause the ground to become loose or unstable, increasing the risk of machine rollover [1].
  • Visibility: Rain can significantly reduce visibility, making it difficult to operate machinery safely [2].
  • Equipment Maintenance: Wet conditions can lead to equipment damage if not properly maintained [3].
  • Electrical Hazards: Rain increases the risk of electrical hazards, especially near power lines [2].
  • Personal Safety: Slippery surfaces increase the risk of slips and falls [4].

Hazard Identification

  • Unstable Ground: Wet ground can become loose, leading to potential machine rollover [1].
  • Reduced Visibility: Rain can obscure vision, increasing the risk of accidents [2].
  • Electrical Hazards: Increased risk of electrocution near power lines [2].

Presenter Note: Encourage participants to share any additional hazards they've encountered.

Control Measures

  • Ground Inspection: Visually inspect ground conditions before operating machinery to ensure stability [5].
  • Use of Lights: Ensure work lights are used to improve visibility in low-light conditions caused by rain [2].
  • Safe Distance from Power Lines: Maintain a safe distance from electrical power lines to prevent electrocution [2].
  • Equipment Maintenance: Regularly clean and maintain equipment to prevent damage from water exposure [3].

Safe Work Procedures

  1. Inspect the work area for stability and potential hazards.
  2. Ensure all lights are functioning and use additional lighting if necessary.
  3. Maintain a safe distance from power lines and other electrical sources.
  4. Operate machinery at reduced speeds to account for slippery conditions.
  5. Regularly check and maintain equipment to prevent water damage.

Presenter Note: If possible, demonstrate the safe work procedure or use visual aids.

Personal Protective Equipment (PPE) Requirements

  • Rain Gear: Wear waterproof clothing to stay dry and maintain body temperature.
  • Non-Slip Footwear: Use footwear with good traction to prevent slips and falls.
  • High-Visibility Clothing: Ensure visibility to others on the worksite.

Real-World Example or Case Study

Discuss a scenario where failure to inspect ground conditions after rain led to a machine rollover. Highlight the importance of ground inspection and proper equipment maintenance.

Presenter Note: Ask participants if they can relate this example to their own experiences.

Group Discussion

Discuss the following questions:

  1. What additional precautions can be taken when operating in the rain?
  2. How can we improve visibility during rainy conditions?
  3. What are the signs of unstable ground?

Presenter Note: Encourage active participation and facilitate the discussion.

Emergency Procedures

  1. Stop all operations immediately if conditions become unsafe.
  2. Move to a safe location away from machinery and power lines.
  3. Report any incidents or near-misses to a supervisor.
  4. Follow site-specific emergency protocols.

Questions and Answers

Encourage participants to ask questions and provide answers to common questions related to the topic.

  • Q: What should be done if machinery starts to slide on wet ground?

A: Stop the machine immediately and assess the ground conditions before proceeding.

  • Q: How can we ensure equipment is safe to use after rain?

A: Conduct a thorough inspection and maintenance check before resuming operations.

Summary

  • Inspect ground conditions before operating machinery.
  • Use appropriate lighting and maintain visibility.
  • Keep a safe distance from electrical hazards.
  • Regularly maintain equipment to prevent water damage.

Action Items

  1. Conduct a site inspection before operating machinery in the rain.
  2. Ensure all operators are trained on emergency procedures.
  3. Regularly maintain and inspect equipment for water damage.

Remember: Safety first, especially in adverse weather conditions.

Report all hazards, near-misses, and incidents to your supervisor immediately.

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5 source record(s)

Sources used for this answer

[1] Kobelco SK235SR-2, SK235SRLC-2 Operation Manual

Page 46

Open source document

Source excerpt

## DD. LOOSE / UNSTABLE GROUND AFTER RAIN Be careful for the possibility of machine rollover after rain. The vibration and weight of the machine could cause shoulder of road or pathway to become loose or unstable. Inspect the areas where the machine will travel and operate on to assure safe operation is possible. Pay attention for possible loosened precipice/overhang or shoulder of road, and falling rocks. pay attention for unexploded dynamite on job sites where dynamite is used. Always ## EE. SAFETY CHECK IN PARKING MACHINES When the machine is not parked properly, there is a possibility of unexpected overrun, risks due to barbarous act and dangerous movement at the time of the coming start. Park the machine following the safety parking procedure shown below. - ・ Park the machine on the firm and level ground to prevent overrun. - ・ Put the working equipment like bucket and dozer (if equipped) on the ground. - ・ Secure the safety lock lever to "LOCKED" position. - ・ Perform the cool-down operation of engine at low idling for 5 minutes. - ・ Stop the engine by switching the starter key switch off and then take out the key. - ・ When leaving from the machine, close the window, door of cab and all doors and covers and lock them. <!-- image -->

[2] Kobelco SK500XSLC-10, SK520XDLC-10 Operation Manual

Page 56

Open source document

Source excerpt

［ ## OPERATING ON SOFT GROUND When working on soft or wet ground, place logs or lumber horizontally beneath the crawler tracks to prevent the machine from becoming stuck. Be aware frozen ground may become soft or wet as the ambient temperature rises during the day and could cause the machine to become unstable or stuck. ## VISUALLY INSPECT GROUND CONDITIONS BEFORE OPERATING The ground near cliffs, trenches and road shoulders may be too soft to operate the machine. Visually inspect for soft ground before travelling or working in these areas. Be aware that rain, blasting activities, earthquakes, or other events may cause the ground to be soft. To prevent serious injury, death, and property damage, only travel or work on firm ground when the machine is close to sudden elevation changes, including cliffs, trenches and road shoulders. The weight of the machine or vibration from the machine may cause the ground to collapse and cause the machine to tip or roll over.

[3] Kobelco SK330-10, SK250LC-10 Operation Manual

Page 198

Open source document

Source excerpt

［ ## 3. MACHINE OPERATION ］ - · Wipe the cylinder rod completely. If frozen mud or water is stuck to the cylinder rod surfaces, the seal may be damaged when retracting the cylinder. Retract each cylinder to the minimum size to minimize the exposed area of the rod. For the storing position, see "PRECAUTIONS FOR LONG-TERM STORAGE" in Chapter 3. ## 3.14.2 OPERATION AT SEASHORE After operation, wash the machine carefully to remove salt, and apply anti-rust treatments with oil and grease, if necessary. ## 3.14.3 OPERATION IN SANDYAND DUSTYAREAS - · Clean and change the air cleaner element earlier than the specified interval. - · Clean the radiator earlier than the specified interval to prevent the radiator core from being clogged with dust. - · Be careful to prevent dust entering when refueling, and refilling oils. Inspect the filter element earlier than the specified interval. - · Especially, clean the starter and alternator earlier than the specified interval to prevent deposit of dust on them.

[4] Kobelco SK235SR-2, SK235SRLC-2 Operation Manual

Page 45

Open source document

Source excerpt

## X. WORKING AROUND UTILITIES If it is suspected that utility lines such as, gas, water, phone or electrical power are in the work area, contact the local utility authority for line location BEFORE beginning work in the area. Use extreme caution around electrical power lines. Keep a sufficient distance away from electrical lines during operation. See chart below for minimum distances. <!-- image --> ## Y. SET LIMITS TO WORKING AREA Set limits around the working area to avoid collision, injury or death. Check for obstacles and personnel while swinging. Use a flagman to guide the operator whenever necessary. <!-- image --> ## Z. CAUTION FOR WORK IN URBAN AREAS It is dangerous to allow other personnel to enter into the working area. Make the working area off-limits to other people by providing barricades. Provide a flagman in working areas with heavy traffic to avoid accidents. ## AA. WORK WITH SUFFICIENT LIGHTING When working in dark places, turn on the work lamp. And if required, provide additional lighting facilities to assure good visibility. Stop working when it is impossible to ensure the visual field due to fog, snow or rain. ## BB. SLIPPERY OPERATION SURFACE Use caution when operating machine on boards or steel plates. Boards and steel plates become very slippery when wet. Pay special attention when working on inclined areas. Provide a device to prevent skidding and operate with extra care. Piled up tree leaves or branches also may causes skidding. ## CC. STRENGTHEN SOFT GROUND When working on a soft ground or marshy area, the machine may sink. Be aware that frozen ground becomes soft with the increase of ambient temperature. Use logs or lumber positioned in the opposite direction of the track to prevent the machine from sinking. １

[5] Kobelco SK135SR-7, SK140SRLC-7, SK140SRL-7 Operation Manual (Excavators)

Page 41

Open source document

Source excerpt

## GROUND CONDITIONS Always place tracks perpendicular (at a 90 degree angle) to the edge of a cliff or the road shoulder with the travel motors(1) positioned away from the edge to prevent the machine from falling over the edge. Visually inspect for soft ground near the edge, especially either any raised ground or any wet ground following a rain. Do not dig close to the machine or undercut the bank in front of the machine to prevent the machine from falling over the edge. ## ELECTRICAL POWER LINES Keep a safe distance from electrical power. Never approach power lines with any part of the machine and its load unless all local and national required safety precautions have been taken. Electrocution and death can result from arcing, touching or even being close to a machine that is in contact with or near an electrical source. - · Maintain the maximum possible distance from power lines and never violate the minimum clearance. - · Always contact the nearest electric utility and determine jointly what specific precautions must be taken to insure safety. - · Consider all lines to be power lines and treat all power lines as energized even though it is known or believed that the power is shut off and the line is visibly grounded. - · Use a signal person to observe the approach of any part of the machine or load to the power line. - · Caution all ground personnel to stand clear of the machine and the load at all times. - · If the machine should come in contact with a live electrical source, do not leave the operator's seat. Do not allow anyone to approach or touch the machine. <!-- image --> The reference of the safe distances from high voltage cables are as follows. ## USE WORK LIGHTS - · When operating in dark locations, turn on the work light. If necessary, use additional lighting devices to make the work areas bright enough to operate. - · Stop work if you have poor or limited visibility because of darkness, fog, rain, especially lightning, snow, or other cause…

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