OBJECTIVES
Upon completing this lesson, you should be able to:
- List four names of electrical equipment.
- Describe the specification of electrical equipments.
- List the power sources for equipment and tools.
- List the general steps for maintenance of electrical equipment (before, during and after their use).
- Demonstrate in four practical exercises the correct use of Electrical Equipment.
NAME OF THE EQUIPMENT
DEMOLITION HAMMER / CHIPPING HAMMER (DEWALT)
Use
The Demolition Hammer / Chipping Hammer (DeWalt) is used for breaking concrete, masonry, and rock surfaces. It is ideal for heavy-duty demolition work, chiseling, and trenching in construction projects.
Specification
ELECTRICALLY OPERATED
- Model: D25840 QS
- Input: 220V – 240V
- Type: 01
- Power: 1300W
- Frequency: 50/60Hz
Main Parts
- Adjustable handle
- Blade Guard
- On-off switch
- Speedometer
- Locking Switch
- Power Cord
- Selector switch
Operational Safety
- Use Proper PPE
- Keep Work Clean
- Do not Use in the presence of flammable liquids & gases
- Use right tools & Accessories
- Handle tool with care
- Check the damage parts
- Keep Children away
- Use Guard against Electric Shock
- Do not overreach
- Remove adjusting Keys & Wrenches
- Do not carry the tool with a finger on the switch
- Do not abuse cord
Operational Procedure
- Use proper PPE.
- Check the power cord.
- Insert the bit shank into the tool holder.
- Pull the bit to check if it is properly locked.
- Maintain proper position.
- Rotate the chisel in the desired position.
- Turn the dial to the desired level of speed.
- Adjust the side handle to your position of comfort.
- Let the bit be in contact first with the workpiece before switching it on and starting work.
Common Problem
- Check power source.
- Check power cord.
- Check if the bit is properly installed.
Maintenance
- Keep the tool in good condition & clean for better and safer performance.
- Keep all handles & switches dry, clean, and free from oil & grease.
- Use a clean cloth or paintbrush for cleaning.
- Always handle the saw carefully and store it with the bit removed.
- Protect the equipment from moisture.
- Bring it to the authorized service center for proper maintenance.
NAME OF THE EQUIPMENT
ROTARY HAMMER DRILL (DEWALT)
Use
The Rotary Hammer Drill (DeWalt) is used for drilling into hard materials like concrete, brick, and stone. It also functions as a hammer drill for chiseling and light demolition work.
Specification
- Model 25600 QS
- 220/240 volts
- Frequency 50/60Hz
- 1150 watts
Main Parts
- Electrical cord
- Drill bit
- Gauge
- Front handle
- Select switch
- Speedometer
- Ventilation hole
- Back handle
- Trigger switch
Operational Safety
- Use PPE
- Keep work area clean
- Guard against electric shock
- Do not abuse the tool and equipment
- Do not abuse the cord
- Do not overreach; maintain proper footing and balance
- Use right tools and accessories
Operational Procedure
- Check the power cord
- Insert the bit shank into the tool holder
- Pull the bit to check if it is properly locked
- Maintain proper position
- Turn the dial to the desired level of speed
- Adjust the side handle to your position of comfort
- Contact the workpiece first before triggering, and keep equipment running before removing it from the work piece
Common Problems and Troubleshooting
- Check power source
- Check power cord
- Check bit if properly installed and secured
Maintenance
- Keep clean and dry by using cloth or paintbrush for cleaning
- Protect the equipment from moisture
- Do not leave the bit connected to the equipment when storing
- Store properly and keep out of reach of children
- Have your equipment repaired by authorized service centers only
NAME OF THE EQUIPMENT
ANGULAR GRINDER (DEWALT)
Use
The Angular Grinder (DeWalt) is used for cutting, grinding, and polishing metal, concrete, and stone surfaces. It is ideal for removing rust, smoothing welds, and shaping materials with abrasive discs.
Specification
ELECTRICALLY OPERATED
- A Heavy Duty 9″ (230 mm) Grinder
- Model: D28414
- Input: 220V – 240V
- Type: B101
Main Parts
- Front handle
- Side handle
- Blade Guard
- On-off switch
Operational Safety
- Use Proper PPE
- Keep Work Clean
- Do not Use in the presence of flammable liquids & gases
- Use right tools & Accessories
- Handle tool with care
- Check the damage parts
- Keep Children away
- Use Guard against Electric Shock
- Do not overreach
- Remove adjusting Keys & Wrenches
- Do not carry the tool with a finger on the switch
- Do not abuse cord
Operational Procedure
- Use Proper PPE
- Place your right foot on the lower section of the rear handle and press the power cutter against the ground
- Grip the STARTER HANDLE with your right hand and slowly pull the STARTER CORD until you feel some resistance, then pull quickly and powerfully
Common Problems and Troubleshooting
- Check power source
- Check power cord
- Check blade if properly installed and secured
- Check the safe guard
Maintenance
- Keep the tool in good condition & clean for better and safer performance.
- Keep all handles & switches dry, clean, and free from oil & greases.
- Use clean cloth or paintbrush for cleaning.
- Always handle the saw carefully and store it with the blades removed.
- Protect the equipment from moisture.
- Bring it to the authorized service center for proper maintenance.
NAME OF THE EQUIPMENT
RECIPROCATING SAW
Use
The Reciprocating Saw (DeWalt) is used for demolition work, cutting through wood, metal, PVC, and nails. It’s ideal for pruning trees, remodeling, and quick, aggressive cuts in tight spaces.
Specification
ELECTRICALLY OPERATED
- Model: DW310 – QS
- Input: 220V – 240V (6.0A, 1200W)
Main Parts
- Blade holder
- Blade Clamp / Lock lever
- Shoe / Base
- Body handle
- Ventilation Hole
- Use Proper PPE
- Keep Work area Clean
- Use right tools & Accessories
- Handle tool with care
- Check the damage parts
- Keep Children away
- Use Guard against Electric Shock
- Do not overreach, keep proper footing and balance at all times
- Remove adjusting Keys & Wrenches
- Do not carry the tool with a finger on the switch
- Do not abuse cord
- Do not operate power in explosive atmospheres, such as in the presence of flammable liquids, gases or dust
- Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges & refrigerators
- Do not expose power tools in the rains or wet condition
- Stay alert, watch what you are doing and use common sense when operating a power tool
Operational Procedure
- Use proper PPE
- Check the power cord
- Install appropriate blade
- Maintain proper body position
- Place the lower edge of the Shoe/Base in contact with the surface to be cut
- Then slowly put in contact the tip of the blade to the surface and simultaneously press the trigger making a slow starting throttle
- Press the trigger to the full adjustment as the cut is made
- Do not force the equipment; Let the equipment do the work
- Bring the equipment to a full stop before pulling out the blade to avoid damaging the blade
Common Problems and Troubleshooting
- Check power source
- Check power cord
- Check blade if properly installed and secured
Maintenance
- Keep the tool in good condition & clean for better and safer performance
- Keep all handles & switches dry, Clean & free from oil & greases
- Use clean cloth or paint brush for cleaning
- Store reciprocating saw with carefully the blades removed
- Protect the equipment from moisture
- Bring it to the authorized service center for proper maintenance
Final Words
This guide covers essential DeWalt electrical equipment, including the Demolition Hammer, Rotary Hammer Drill, Angle Grinder, and Reciprocating Saw. Each tool’s specifications, uses, safety precautions, operational steps, and maintenance are explained to ensure proper handling and longevity. Whether breaking concrete, drilling into masonry, grinding metal, or cutting through tough materials, following these guidelines will help maximize efficiency and safety on the job. Always use PPE, inspect tools before use, and store them properly to maintain peak performance. For major repairs, rely on authorized service centers to keep your DeWalt tools in top condition.
Jordan Hayes, a rescue professional with years of hands-on experience, shares expert insights and tips to enhance safety and preparedness on arescuers.com