DONGCHENG DZC05-26B Rotary Hammer Instruction Manual

DONGCHENG DZC05-26B Rotary 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 mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work area safety

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• 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.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

• 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.

• 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.

• Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

• 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.

• 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.

• 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.

Personal safety

• 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.

• 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.

• 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.

• 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.

• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

• 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.

• 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.

Power tool use and care

• 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.
• Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
• 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.
• 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.
• 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.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
• 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.

Service
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.

Hammer safety warnings

• Wear ear protectors. Exposure to noise can cause hearing loss.
• Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury.
• 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.

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Technical data

Model| DZC05-26B/AZC05-26B/KZC05-26B(The letter “ZC”

means Hammer Drill)

---|---
Rated Voltage| 120V~
Rated Frequency| 60Hz
Rated Current| 6.7A
Net Weight Of The Machine| 6.4 lb(2.9kg)

Intended use
This product is suitable for drilling grooving, chiseling and other operations on concrete, rock, brick wall and other similar under general environmental conditions.

Instructions for putting into use
Setting-up or fixing power tools in a stable position as appropriate for power tools which can be mounted on a support or fixed to a bench or the floor.

GENERAL DESCRIPTIONS

1. Locking Sleeve
2. Dust Cap
3. Depth Gauge
4. Auxiliary Handle
5. Operating Mode Selector
6. Switch

INSTRUCTIONS For OPERATION

Setting Operating Mode
CAUTION:

• Always be sure that the tool is switched OFF before changing the operating mode, or the gears inside the tool maybe damaged.
• If the drill bit gets stuck by the steel hidden in the wall during impact drilling, and the tool rotates due to the kickback, hold the handle and auxiliary handle firmly to avoid personal injuries.

The Operating mode can be changed by turning the operating mode selector.

Drilling Operation
When impact drilling on the concrete or stone, turn the selector to the position as shown in the figure.
When normally drilling on the wood, metal, ceramics or plastic, turn the selector to the position as shown in the figure.

Installing SDS-plus Hammer Drill Bit
SDS-plus hammer drill bit can be used when drilling on the steel, wood or plastic.Screw the drill chuck in the connecting rod and tighten the lock screw. Then insert the connecting rod into the collect in the same way as installing SDS-plus hammer drill bit.SDS-plus hammer drill bit and drill chuck are optional accessories.

Installing /Removing Drill Bit
CAUTION:

• Always be sure that the tool is switched OFF and unplugged before installing or removing the drill bit.
• The SDS-plus drill bit will be off-center when rotating with no-load, but it will align with the center automatically during operation and its precision won’t be affected.

Clean the bit shank and smear it with bit grease before installation.
To install the drill bit (SDS-plus shank), fully pull back the slide grip and insert the drill bit as far as it will go while rotating.

By releasing the slide grip, the drill bit will be secured automatically.
To remove the SDS-plus drill bit, fully pull back and hold the slide grip and the drill bit can be removed.

Auxiliary Handle
Always use the auxiliary handle ensure operating safety. Loosen the auxiliary handle by turning it counterclockwise, swing it to the desired position and then tighten it by turning clockwise.

Switch Action
CAUTION:

Before plugging in the tool, always check to see that the trigger switch 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 switch trigger and then push in the lock lever.
To stop the tool from the locked position, pull the switch trigger fully, and then release it. The rotating speed of the tool becomes faster and faster until it reaches the full speed during the process of pressing the switch.

The switch of DZC05-26 is with positive and negative going motion,which can be used to change the tool’s direction of rotation. You can only change it when the tool completely stops rotating, otherwise the tool will be damaged. Set the direction of rotation for hammer drilling, drilling and chiseling always to right rotation.

Depth Gauge
CAUTION:

The depth gauge cannot be used at the position where he depth gauge strikes against the tool body.

The depth gauge enables the drilling depth to be set for convenient drilling holes of uniform depth. Loosen the auxiliary handle, and insert the linear part of the depth gauge into the fitting hole of the clip board.
Move the depth gauge to the desired depth and secure it by rotating the auxiliary handle clockwise.

MAINTENANCE AND INSPECTION

CAUTION

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

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 when they become blunt. 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.

Maintenance of the Motor
The motor unit winding is the very “heart” of the power tool. Exercise due care to ensure the winding does not become damaged and /or wet with oil or water.
Inspecting and Replacing 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. Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes insert the new ones and secure the brush holder caps

Replacing Dust Cap
Replace the dust cap once it is damaged to avoid chippings from getting into the collet.
Clean the collet regularly.

• 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.

2

|

Circlip For Shaft 16

|

32

|

Cylinder

3| Washer| 33| Pin 2.5
4| Circlip| 34| Clutch Plate
5| Locking Sleeve| 35| Circlip For Cylinder Hole
6| Clamping Ring| 36| Guide Sleeve
7| Steel Ball 9/32′(7.14)| 37| O Ring For Damping
8| Clamping Plate| 38| O Ring For Hammer
9| Compression Spring| 39| Splice Sleeve
10| Retainer Sleeve| 40| Circlip For Hole 25
11| O Ring| 41| Striker
12| Frame Oil Seal| 42| O Ring For Striker
13| Thrust Ring| 43| Air Piston
14| Impact Lever| 44| Washer (12×17.8×1.2)
16| Gear Housing| 45| Piston Pin
17| Frame Oil Seal| 46| Shaft Sleeve
18| Needle Bearing HK3012| 47| Sealing Ring
19| Needle Bearing Cover| 48| Bearing Retainer
20| Clamping Ring For Cylinder| 49| Middle Bearing Bracket
26| Cross Recessed Pan Head Tapping Screw ST4×37| 50| O Ring (23.4×2.6)
27| Washer| 51| Needle Bearing HK0709
28| Clutch Spring| 52| Metal Sheet
29| Circlip For Shaft| 53| Cross Recessed Pan Head Tapping Screw ST4.2×17
30| Clutch Gear| 54| Gear Shaft
55| Change Plate| 81| Carbon Brush
---|---|---|---
56| Ball Bearing 619/9-5| 82| Cross Recessed Pan Head Tapping Screw ST2.9×9
57| Hasp| 83| Coil Spring
58| Needle Bearing HK0910| 84| Handle Cover (Blue)
59| Rocker Bearing| 85| Cross Recessed Pan Washer Head Tapping Screw ST4×16
60| Needle Bearing K| 86| Switch
61| Spline Gear| 87| Cord Guard
62| Small Spring| 88| Cord 2×1.0
63| Small Spring Pad| 89| Strain Relief
64| Sleeve| 90| Lead Wire
65| Rubber Pad| 91| Lead Wire
66| Ball Bearing 609-2RS1| 92| Depth Gauge
67| Bearing Retainer| 93| Clamp
68| Cross Recessed Countersunk Head Tapping Screw M4×10| 94| Trapezoid Square- Neck Bolt M8×40
69| Washer (9×14×0.5)| 95| Tightening Screw
71| Insulation Washer| 96| Clamp Holder
72| Ball Bearing 607-2RS| 97| Type I Hex. Nut M6
73| Bearing Rubber Sleeve (19×21.2×8.6)| 98| Keep Plate
74| Baffle Plate| 99| Auxiliary Handle M8
75| Cross Recessed Pan Head Tapping Screw ST3.5×16| |
77| Pin Assembly| |
79| Motor Housing (Green)| |
79| Motor Housing (Blue)| |
80| Brush Holder Assembly| |

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

References

• P65Warnings.ca.gov

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