DongCheng KZJ05-13 Drill Hammer Instruction Manual

OPERATION INSTRUCTION

DZJ05-13 AZJ05-13 KZJ05-13

KZJ05-13 Drill Hammer

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• Lead from lead-based paints,
• Crystalline silica from bricks and cement and other masonry products, and
• Arsenic and chromium from chemically treated lumber.
  Your risk from these exposures varies, depending on how often you do this type of work.
  To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.
  For more information go to www.P65Warnings.ca.gov.

General power tool safety warnings

WARNING Read all safety warnings, instructions, illustrations and specifications provided with this power tool.
Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mainsoperated (corded) power tool or battery-operated (cordless) power tool.

1. Work area safety
   a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
   b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
   c) Keep children and bystanders away while operating a power tool.
   Distractions can cause you to lose control.

2. Electrical safety
   a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
   b) Avoid body contact with earthed or grounded surfaces,such as pipes, radiators, ranges and refrigerators.
   There is an increased risk of electric shock if your body is earthed or grounded.
   c) Do not expose power tools to rain or wet conditions.
   Water entering a power tool will increase the risk of electric shock.
   d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
   e) When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
   f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

3. Personal safety
   a) Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication.
   A moment of inattention while operating power tools may result in serious personal injury.
   b) Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
   c) Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool.
   Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
   d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
   e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
   f) Dress properly. Do not wear loose clothing or jewellery.
   Keep your hair and clothing away from moving parts.
   Loose clothes, jewellery or long hair can be caught in moving parts.
   g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used.
   Use of dust collection can reduce dust-related hazards.
   h) Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

4. Power tool use and care
   a) Do not force the power tool.
   Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
   b) Do not use the power tool if switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
   c) Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
   d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.Power tools are dangerous in the hands of untrained users.
   e) Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use.Many accidents are caused by poorly maintained power tools.
   f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
   g) Use the power tool, accessories and tool bits etc.
   in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
   h) Keep handles and grasping surfaces dry, clean and free from oil and grease.Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

5. Service
   a) Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
   Drill safety warnings

1. Safety instructions for all operations
   a) Wear ear protectors when impact drilling. Exposure to noise can cause hearing loss.
   b) Use the auxiliary handle(s).
   Loss of control can cause personal injury.
   c) Hold the power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
2. Safety instructions when using long drill bits
   a) Never operate at higher speed than the maximum speed rating of the drill bit. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
   b) Always start drilling at low speed and with the bit tip in contact with the workpiece.
   At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
   c) Apply pressure only in direct line with the bit and do not apply excessive pressure.
   Bits can bend causing breakage or loss of control, resulting in personal injury.

Symbol

| WARNING
---|---
| To reduce the risk of injury, user must read
instruction manual
| Class II tool
| Conformity of US
and CANADA

Technical data

※ Due to the continuing program of research and development, the specifications herein are subject to change without prior notice.

Intended use

This product is suitable for drilling metals，plastics，wood and other similar materials under general environmental conditions.

1. Drill Chuck
2. Auxiliary Handle
3. Speed Adjusting Dial
4. Switch Trigger
5. Lock Button

ADDITIONAL SAFETY RULES

1. Always hold the tool firmly. Otherwise the counterforce produced may result in inaccurate and even dangerous operation.

2. Always be sure you have a firm footing. Be sure no one is below when using the tool in high locations.

3. Ensure that the drill is firmly chucked before drilling.

4. Keep hands away from rotating parts.

5. Before drilling into walls, ceilings or floors, ensure that there are no concealed power cables inside.
   Do not contact any metallic parts of the tool to avoid electric shock.

6. Do not leave the tool running. Operate the tool only when hand-held.

7. Do not touch the bit or the workpiece immediately after operation; they may be extremely hot and could burn your skin.

8. Some material contains chemicals which may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.

SAVE THESE INSTRUCTIONS.
WARNING! MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

INSTRUCTIONS FOR OPERATION

Installing or Removing Drill Bit

CAUTION:
Always be sure that the tool is switched off and unplugged before installing or removing drill bit.
To install the drill bit, loosen the drill chuck and insert the drill bit in the chuck as far as it will go. Tighten the chuck by hand. Place the chuck key in each of the three holes and tighten clockwise. Be sure to tighten all three chuck holes  evenly.

To remove the drill bit, turn the chuck key counterclockwise in just one hole, then loosen the chuck by hand.

1. Tighten
2. Loosen
3. Drill Chuck Key
4. Drill Chuck

Switch Action

CAUTION:
Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released.
To start the tool, simply pull the switch trigger.
Release the switch trigger to stop. For continuous operation, pull the trigger and then push in the lock button. To stop the tool from the locked position, pull the trigger fully then release it.
A speed adjusting dial is provided so that maximum tool speed can be limited (variable). Turn the speed adjusting dial in “+” direction for higher speed, and in “-” direction for lower speed.
Always be sure you have a firm footing.

1. Switch Trigger
2. Speed Adjusting Dial
3. Lock Button

Reversing the Rotational Direction CAUTION:

• Check the rotational direction of the power tool before drilling operation.
• Change the rotational direction only when the tool comes to a complete stop. Changing it before the tool stops may damage the tool.

Turn the reversing bar to “A”, the tool will rotate clockwise, and turn the reversing bar to “B”, the tool will rotate counterclockwise.

1. Reversing Bar

IMPACT to ROTATION Changeover
CAUTION:
Always switch on the drill after turning the change

knob fully to one of two final positions ( or ). If in the middle, the drill may be damaged.
The tool is equipped with change knob to switch running mode between drill mode and impact drill mode.
Turn the change knob fully to the right ( ) and the drill rotates as an impact drill.
Turn the change knob fully to the left ( ) and the drill rotates as an ordinary electric drill.

Installing Auxiliary Handle CAUTION:
The auxiliary handle cannot be rotated 360°after installing depth gauge.
Always use the auxiliary handle to ensure operating safety. Sleeve the auxiliary handle on the neck of the gear housing and secure it at the desired position by rotating the auxiliary handle. The auxiliary handle can be rotated 360°to any side, so it can be fixed at  any position.

1. Auxiliary Handle

Depth Gauge
The depth gauge enables the drilling depth to be set for convenient drilling holes of uniform depth.
Loosen the wing bolt on the auxiliary handle base and insert the depth gauge, adjust it to the desired depth and secure it by tightening the wing bolt.

1. Auxiliary Handle Base
2. Depth Gauge
3. Auxiliary Handle

Drilling Operation
WARNING:

• Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your bit, decrease the tool performance and shorten the service life of the tool.
• There is a tremendous force exerted on the tool/bit at the time of hole break through. Hold the tool firmly and exert care when the bit begins to break through the workpiece.
• Always secure small workpieces in a vise or similar hold-down device

Impact Drilling
Always use auxiliary handle when operating the tool and hold the tool firmly with the help of auxiliary handle and switch trigger at the same time.
When drilling in granite or similar materials, turn the change knob fully to the right ( ) and the drill rotates as an impact drill.
Position the bit at the desired location for the hole, then pull the switch trigger. Do not force the tool.
Light pressure gives best results. Keep the tool in position and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, and then remove the bit partially from the hole. By repeating this several times, the hole will be cleaned out and normal drilling may be resumed.

Drilling
When drilling in wood, turn the change knob fully to the left ( ) and the drill rotates as an ordinary electric drill
When drilling in wood, the best results are obtained with wood drills equipped with a guide screw. The guide screw makes drilling easier by pulling the bit into the workpiece. Metal drills may be used when drilling a hole less than ø6mm.
When Drilling in metal, to prevent the bit from slipping when starting a hole, make an indentation with a center-punch and hammer at the point to be drilled.
Place the point of the bit in the indentation and start drilling.
Use a cutting lubricant when drilling metals. The exceptions are iron and brass which should be drilled dry.

MAINTENANCE AND INSPECTION

CAUTION: Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

1. Inspecting the mounting screws
   Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard.

2. Inspecting Drill Bits
   Blunt drill bit or chisel will decrease the work efficiency and causes the motor be overloaded.
   Exchange or sharpen your drill bits and chisels when they become blunt..

3. Inspecting and replacing the carbon brushes
   Remove and check the carbon brushes regularly.
   Replace when they wear down to the limit mark.
   Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes.
   Remove the handle cover by loosening the screws on it with a screwdriver, and remove the holder plate.
   Pull out the brush holder and disconnect the wire connecting to the stator, then remove the worn out carbon brushes and replace new ones. Replace the brush holder and the holder plate, and then reinstall the handle cover by tightening the screws.
   

※ If the replacement of the supply cord is necessary, this has to be done by the manufacturer or his agent in order to avoid a safety hazard.
※To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by authorized centers, always using original replacement parts

Made by Jiangsu Dongcheng M &E Tools Co.,Ltd.
Add:Power Tools Industrial Park of Tianfen, Qidong City, Jiangsu
Province, P.R.China
Tel :+86-400-182-5988
Fax:+86-513-83299608
www.dongcheng-tools.com
90040600447/2022.06/NO.2

References

• P65Warnings.ca.gov

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