Dong Cheng DCZC22 20V Max Brushless Rotary Hammer Drill Kit Instruction Manual

OPERATION INSTRUCTIONS

DCZC22 ADZC22 KDZC22

DCZC22 20V Max Brushless Rotary Hammer Drill Kit

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 and all instructions. Failure to follow the warnings and instructions 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.

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 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.
   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.

5. Battery tool use and care
   a) Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
   b) Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
   c) When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
   d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.

6. 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.

Hammer safety warnings
a) Wear ear protectors.
Exposure to noise can cause hearing loss.
b) Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury.
c) Hold power tools by insulated gripping surfaces, when performing an operation where the cutting tool may contact hidden wiring. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

Battery safety warning
a) Do not dismantle, open or shred secondary cells or batteries.
b) Keep batteries out of the reach of children Battery usage by children should be supervised. Especially keep small batteries out of reach of small children.
c) Do not expose cells or batteries to heat or fire. Avoid storage in direct sunlight.
d) Do not short-circuit a cell or a battery. Do not store cells or batteries haphazardly in a box or drawer where they may shortcircuit each other or be shortcircuited by other metal
objects.
e) Do not subject cells or batteries to mechanical shock.
f) In the event of a cell leaking, do not allow the liquid to come in contact with the skin or eyes. If contact has been made, wash the affected area with copious amounts of water and seek medical advice.
g) Do not use any charger other than that specifically provided for use with the equipment.
h) Do not use any cell or battery which is not designed for use with the equipment.
i) Do not mix cells of different manufacture, capacity, size or type within a device.
j) Always purchase the battery recommended by the device manufacturer for the equipment.
k) Keep cells and batteries clean and dry.
l) Wipe the cell or battery terminals with a clean dry cloth if they become dirty.
m) Secondary cells and batteries need to be charged before use.
Always use the correct charger and refer to the manufacturer’s instructions or equipment manual for proper charging instructions.
n) Do not leave a battery on prolonged charge when not in use.
o) After extended periods of storage, it may be necessary to charge and discharge the cells or batteries several times to obtain maximum performance.
p) Retain the original product literature for future reference.
q) Use the cell or battery only in the application for which it was intended.
r) When possible, remove the battery from the equipment when not in use.
s) Keep the cell or battery away from microwaves and high pressure.
t) Dispose of properly.

Symbol

| WARNING
---|---
| To reduce the risk of injury, user must read instruction manual
| Wear ear protection
| Wear dust mask
| Do not burn
| Do not charge a
damaged battery pack
| Do not dispose of batteries.
Return exhausted batteries to your local collection or recycling point.
| Conformity of US and CANADA

Technical data

Intended Use

The machine is intended for hammer drilling in concrete, bricks and masonry, as well as for light chiselling work. It is also suitable for drilling without impact in wood, metal, ceramics and plastic, as well as for screwdriving.
The light of this power tool is intended to illuminate the power tool’s direct area of working operation and is not suitable for household room illumination.
Instructions for putting into use and Operation

GENERAL DESCRIPTIONS

1.Locking Sleeve
2.Depth Gauge
3.Dust Cap
4.Operating Mode Selector
5.LED Light| 6.Battery Pack Button
7.Auxiliary Handle
8.Reversing Switch Lever
9.Switch Trigger
---|---

CAUTION:
When installing or removing the battery pack, please set the reversing switch lever to the center position to lock the switch so as not to accidentally touch the switch and cause safety problems.
The battery pack is only partially charged at delivery. In order to ensure the maximum power of the battery , the battery pack must be fully charged in the charger before the first use.
● Installing or Removing the Battery 1.Installing the Battery
As shown in the figure below. When inserting the battery pack, please pay attention to insert the battery pack into the casing correctly, and be sure to insert it until you hear the sound of “click”, indicating that the battery pack is firmly installed on the machine. Otherwise, the battery pack may accidentally fall off from the case, causing injury to the operator or others. Avoid using excessive force when inserting the battery pack or knocking it in with other objects.

1. Battery Pack

Only the specified battery pack can be used.
Use of battery packs of other brands carries a risk of injury and personal injury and property damage due to battery packs exploding.
● Removing the Battery Pack
The battery pack is under the handle of the machine, press the battery pack button, and then pull out the battery pack.
Caution: Do not forcefully pull out the battery pack.

1. Battery Pack Button
2. Battery Pack

● Battery Indicator
When you press the battery pack power button, the battery indicator on the battery pack will show the power of the battery pack, and the power level is indicated by the state of the 4 red LED lights (hereinafter referred to as a red light).

1. Battery Indicator

The power status is shown in the following table

●Continuous Use
When the battery is in continuous use until the battery is exhausted. Cool the machine for 15 minutes before continuing to use with a new battery pack.

● Switch Action
Before inserting the battery cartridge into the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released.
*Do not operate the machine at a low speed for too long, or the inside machine may be overheated.
To start the tool, simply pull switch trigger. Tool speed is increased by increasing pressure on the switch trigger and further pressure results in an

increase in speed. Release the switch trigger to switch off the tool.

1. Switch Trigger

● Light Indicator
When the switch button is pressed, the white light is lit to illuminate the operating position in a poorly lit environment.
When the battery is running low. The white light flashes about once a second. When the temperature of the machine is too high, the white light will flash twice a second.

1. LED Light

● Positive Inversion Operation
Push the reversing lever from side B to side A, and the machine will turn forward/clockwise (looking from the end of the machine to the head).
Push the reversing lever from side A to side B, reversing/counterclockwise (looking from the back of the machine to the head).
When the reversing lever is in the middle position, the switch is locked and the trigger cannot be pulled.

1. Reversing Switch Lever
2. clockwise
3. Anticlockwise

CAUTION:
Before operation, always confirm the direction of rotation; Be sure to use the reversing knob after the machine has completely stopped. Changing the direction of rotation before the machine has stopped may cause damage to the machine.

● Installing or Removing tools
Apply a small amount (about 0.5-1g) of bit oil on the drill shank in advance to ensure smooth operation and prolong the service life of the machine.
CAUTION: Before operation, the reversing lever must be placed in the center position and the battery pack must be removed, and it is absolutely forbidden to press the switch button.

1. Installing the bit
   Clean the bit handle and apply bit oil before installing the bit. Insert the bit into the machine, turn the bit, and push it in until it meshes. If the bit cannot be pushed in, remove it. Pull down the sleeve several times, then insert the bit, turn the bit and push it in until it meshes. After installation, be sure to pull the bit to make sure it is fixed in place
   1.Drill Bit
   2.Locking Sleeve

2. Removing the bit
   To remove the bit, just pull the locking sleeve back and pull out the bit.
   ● Auxiliary Handle
   For safety, use the auxiliary handle when operating.
   Before operating the machine, please cover the auxiliary handle in the specified position of the machine and tighten it clockwise before operating the machine.
   Loosen the handle counterclockwise to adjust the auxiliary handle to any Angle.
   1. Auxiliary Handle

● Setting Operating Mode

1. Drill Mode
   Turn the operating mode selector ( pressing the lock button), and align the triangle symbol with the as shown in the figure, then the tool is set in drill operation. Set like this when drilling on the wood, metal, or plastic, and use twist bits or solid center bits.
   1.Operating Mode Selector
   2.Lock Button

2. Electric Hammer Mode
   Turn the operating mode selector (pressing the lock button), and align the triangle symbol with the as shown in the figure, then the tool is set in hammer operation. Set like this when drilling on the concrete or stone with a carbide-tipped bit.
   1.Lock Button
   2.Operating Mode Selector

3. Hammer Mode
   Turn the operating mode selector (pressing the lock button), and align the triangle symbol with the as shown in the figure, then the tool is set in hammer operation. It can be used for chiseling, stripping, dismantling and other operations, which require the use of a pointed drill, chise, rust chisel.
   1.Operating Mode Selector
   2.Lock Button

CAUTION:
Only after the machine shut down can you change the operation function, otherwise it will damage the machine.
In order to avoid fast wear of the mode changing mechanism, it is necessary to ensure that the operating mode selector is always in one of the three modes correctly.
When switch from drill mode or hammer mode to impact mode. The operating mode selector may not be successful. At this time, press the switch to inching the machine and then rotate the function button. Forcing the operating mode selector to rotate may damage the machine.

● Drill Point Adjustment
When the machine is in hammer mode and the drill point needs to be changed, press the lock button and turn the operating mode selector to make the aimed at , at this point the bit can be adjusted to the desired angle. Adjust the angle before turning the machine back into hammer mode.

1.Lock Button
2.Operating Mode Selector

● Usage of depth gauge
The installation of the depth gauge is shown in the figure.

1. Loosen the wing bolt, and insert the depth gauge into the fitting hole of the clip board.
2. Move the depth gauge to the desired depth and secure it by rotating the wing bolt clockwise.
   1.Wing Bolt
   2.Depth Gauge

● Drill Operation

1. Hammer Drill Operation
   Set the operating mode selector to the hammer mode symbol, and position the bit at the desired location for the hole, then pull the switch trigger.
   CAUTION: Applying more pressure will not speed up the drilling. In fact, this excessive pressure will damage the drill bit, decrease the tool performance, and shorten the service life of the tool.
   There is a tremendous force exerted on the bit at the time of hole break through. Be careful and hold the tool firmly when the bit begins to break through the workpiece.
   1.Dill bit
   A stuck bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. Hold the tool firmly before starting the tool to remove the bit easily. Do not drill in the material that may contain nails or something that may hamper or destroy the drill bit.

2. Drilling on the steel or wood
   When drilling on steel, wood or plastic, a SDS-plus twist drill bit should be used to spin the drill chuck into the connecting rod, tighten the screws tightly, and then insert the connecting rod into the machine, the method of which is the same as the drill bit mentioned earlier and turn the operating mode selector to the drill mode.
   1.Lock Screw
   2.Drill Chuck
   3.Connecting Rod
   4.Locking Sleeve
   5.Twist Drill

CAUTION:
Do not set the tool to hammer mode when drilling on the wood or metal, or the drill bit or the drill chuck may be destroyed.

• Overload Protection
  The motor will stop if it is overload during the operation. Release the switch button then push it to start the tool again.

• Over Temperature Protection
  Overload is not allowed during the operation of the tool. The electronic control system will stop the tool when it is overload or the temperature is over 75°C.

• Deep Discharging Protection
  The tool is equipped with a protective circuit to protect the battery against deep discharging. When the battery is near to be empty, the protective circuit actuates to switch off the tool.

• Disposal of discarded battery packs
  To protect natural resources, properly recycle or dispose of battery packs. The battery contains a lithium battery. Please consult your local authority for information on recycling and/or disposal. Remove the battery pack when it has run out of power and wrap the pole port with strong tape to avoid short circuit and leakage. Do not attempt to open or remove any component.

MAINTENANCE AND SERVICING INSTRUCTIONS

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

• Cleaning Ventilation Slots
  For safe and proper working, always keep the power tool and its ventilation slots clean. Use a soft, clean and dry brush to clean the ventilation slots regularly or when they’re clogged.

• 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.

• Cleaning
  Only use soft and dry cloth to wipe the body of the tool. Do not clean the tool with wet cloth, thinner, gasoline or other volatile solvents.

• Disposal

The machine, rechargeable batteries, accessories and packaging should be sorted for environmental friendly recycling.
Do not dispose of power tools and batteries/ rechargeable batteries into household waste!

For battery tools:
Ambient temperature range during operation and storage: 0°C – 45°C(32 ℉ -113 ℉ ).
Recommended ambient temperature range during charging: 5°C – 40°C(41 ℉ -104 ℉ ).

| Charger| Battery Pack
---|---|---
Model| FFCL20-02| FFBL2040
FFBL2020
1| Dustproof Cover
---|---
2| Locking Sleeve
3| Washer
4| Dustproof Cover Locating Ring
5| Steel Ball 9/32 ＇ (7.14)
6| Support
7| Drill Clamping Ring
8| Drill Clamping Plate
9| Drill Compression Spring
10| Roundwire Snap Ring for Shaft
11| Bearing
12| Damping Washer Assembly
13| Air Cylinder Skeleton Seal Ring
14| Circlip for Shaft
15| Clutch Plate
16| Gear (Large)
17| Clutch Spring
18| Spring Gasket
19| Circlip For Shaft
20| Cylinder Retainer Sleeve
21| Thrust Ring
22| Impact Bolt
23| O Ring
24| Guide Sleeve
25| Impact Bolt O Ring
26| Damping Washer
27| Lockpin  O Ring
28| Fixing Ring
29| Roundwire Snap Ring for Hole
30| Punch Hammer
31| O Ring
32| Piston
33| Piston Pin Washer
34| Piston Pin
35| Sleeve
36| Split Washer 6
37| Ball Bearing 627ZZ（LFB）
38| Spline Gear
39| Mode Switching Sleeve
40| Spline Shaft
41| Pendulum Bearing
42| Needle Bearing K8×11×17
43| Helical Gear
44| Ball Bearing 608SS(NMB)
45| Gearbox
46| Wool Seal Ring
47| Bearing Steal Washer
48| Ball Bearing
49| Armature
50| Stator
51| Pan Head Tapping Screw
52|  Deep Groove Ball Bearing 626-2RS(RB)
53| Tapping Screw
54| Washer
55| Extension Spring
56| Rigt Pick
57| Lefe Pick
58| Pin Retainer
59| Mode Selector Switch
60| O Ring
61| Button Spring
62| Locked Button
63| Reversing Pole
64| Oil Seal
65| Right-Half Handle
66| Tapping Screw
67| Tapping Screw
68| Switch
69| Controller Assembly
70| Left-Half Handle
71| LED Shade
72| Rubber Column
73| Buttery Combonation Hub
74| Depth Gauge
75| Auxiliary Handle(M8 Internal Thread)
76| Trapezoid Square-Neck Bolt M8×40
77| Compression Plate
78| Type I Hex. Nut M6
79| Steel Band Base
80| Steel Band
81| Tightening Screw
82| Shaft Sleeve

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
https://www.dongchengtool.com/

90040600419/2022.05/NO.2

References

• P65Warnings.ca.gov

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