HiKOKI AC 18DA Cordless Caulking Gun Instruction Manual

Model AC 18DA
Cordless Caulking Gun
Designed for operating in USA & Canada only.
When this product is used in areas other than the USA & Canada,
we cannot guarantee the product quality and performance. Without a charger and battery

SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL
WARNING
IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily injury!
This manual contains important information about product safety. Please read and understand this manual BEFORE operating the power tool. Please keep this manual available or other users and owners before they use the power tool. This manual should be stored in a safe place.

IMPORTANT SAFETY INFORMATION
Read and understand all of the safety precautions, warnings, and operating instructions in the Instruction Manual before operating or maintaining this power tool.
Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and in the sections which contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identifi ed by WARNINGS on the power tool and in this Instruction Manual.
NEVER use this powerful tool in a manner that has not been specifi cally recommended by Metabo HPT.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situation that, if ignored, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury, or may cause machine damage.
NOTE emphasizes essential information.

SAFETY

GENERAL POWER TOOL SAFETY WARNINGS WARNING
Read all safety warnings, instructions, illustrations, and specifi cations 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.

1) Work area safety
a) Keep the 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 fl ammable liquids, gases, or dust.
Power tools create sparks that may ignite 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.
Unmodifi ed plugs and matching outlets will reduce the 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.
The 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.
The 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 a power source and/or battery pack, picking up or carrying the tool.
Carrying power tools with your fi nger on the switch or energizing 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 jewelry. Keep your hair and clothing away from moving parts.
Loose clothes, jewelry, 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.
The 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 at which it was designed.
b) Do not use the power tool if the switch does not turn 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 aff ect 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 diff erent 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) Battery tool use and care
a) Recharge only with the charger specifi ed by the manufacturer.
A charger that is suitable for one type of battery pack may create a risk of fi re when used with another battery pack.
b) Use power tools only with specifi cally designated battery packs.
Use of any other battery packs may create a risk of injury and fi re.
c) When the 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 fi re.
d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water.
If liquid contacts the eyes, additionally seek medical help.
Liquid ejected from the battery may cause irritation or burns.
e) Do not use a battery pack or tool damaged or modifi ed.
Damaged or that is modifi ed batteries may exhibit unpredictable behavior resulting in fi re, explosion or risk of injury.
f) Do not expose a battery pack or tool to fi re or excessive temperature.
Exposure to fi re or temperature above 265 °F may cause an explosion.
g) Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specifi ed in the instructions.
Charging improperly or at temperatures outside the specifi ed range may damage the battery and increase the risk of fi re.
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.
b) Never service damaged battery packs.
Service of battery packs should only be performed by the manufacturer or authorized service providers.

– WARNING –
To reduce the risk of the instruction manual. injury, the user must read
SPECIFIC SAFETY RULES AND SYMBOLS

1. Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory 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.
   

2. ALWAYS wear ear protectors when using the tool for extended periods.
   Prolonged exposure to high-intensity noise can cause hearing loss.

3. NEVER touch moving parts.
   NEVER place your hands, fingers, or other body parts near the tool’s moving parts.

4. NEVER operate without all guards in place.
   NEVER operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming the operation of the tool.

5. Use the right tool.
   Don’t force small tools or attachments to do the job of a heavy-duty tool.
   Don’t use tools for purposes not intended —for example— don’t use a circular saw for cutting tree limbs or logs.

6. NEVER use a power tool for applications other than those specifi ed.
   NEVER use a power tool for applications other than those specifi ed in the Instruction Manual.

7. Handle tool correctly.
   Operate the tool according to the instructions provided herein. Do not drop or throw the tool.
   NEVER allow the tool to be operated by children, individuals unfamiliar with its operation, or unauthorized personnel.

8. Keep all screws, bolts, and covers tightly in place.
   Keep all screws, bolts, and plates tightly mounted.
   Check their condition periodically.

9. Do not use power tools if the plastic housing or handle is cracked.
   Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not be used until repaired.

10. The holder and accessories must be securely mounted to the tool.
    Prevent potential injuries to yourself or others. The holder and accessories which have been mounted to the tool should be secure and tight.

11. Hold the tool firmly.

12. Keep motor air vent clean.
    The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check for dust build-up frequently.

13. NEVER use a tool that is defective or operating abnormally.
    If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by a Metabo HPT authorized service center.

14. NEVER leave the tool running unattended. Turn power off .
    Don’t leave the tool until it comes to a complete stop.

15. Carefully handle power tools.
    Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged.

16. Do not wipe plastic parts with solvent.
    Solvents such as gasoline, thinner benzene, carbon tetrachloride, and alcohol may damage and crack plastic parts. Do not wipe them with such solvents.
    Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry thoroughly.
    

17. ALWAYS wear eye protection that meets the requirement of the latest revision of ANSI Standard Z87.1.

18. ALWAYS wear a mask or respirator to protect yourself from dust or potentially harmful particles generated during operation.

19. ALWAYS fi rmly grip the handle while operating.

20. Defi nitions for symbols used on this tool
    V ………………volts
    ……………..direct current
    no …………….no-load speed
    inch/min …….inch per minute
    oz ……………..ounce

21. Because the cordless power tool operates by battery power, be aware of the fact that it can begin to operate at any time.

22. Do not use in locations where infl ammable materials such as lacquer, paint, benzene, thinner, or gasoline are present.

23. When working at elevated locations, clear the area of all other people and be aware of conditions below you.

24. NEVER operate from an unstable footing, such as when on a ladder or step ladder.
    Doing so may cause an injury.

25.  Do not use the product if the tool or the battery terminals (battery mount) are deformed. Installing the battery could cause a short circuit that could result in smoke emission or ignition.

26. Keep the tool’s terminals (battery mount) free of swarf and dust.
    ○ Prior to using, make sure that swarf and dust have not collected in the area of the terminals.
    ○ During use, try to avoid swarf or dust on the tool from falling on the battery.
    ○ When suspending operation or after use, do not leave the tool in an area where it may be exposed to falling swarf or dust.
    Doing so could cause a short circuit that could result in smoke emission or ignition.

IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY CHARGER
WARNING
Death or serious bodily injury could result from improper or unsafe use of battery chargers. To avoid these risks, follow this basic safety instruction:
READ ALL INSTRUCTIONS

1. This manual contains important safety and operating instructions for battery charger Model UC18YFSL.
2. Before using the battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using the battery.
3. To reduce the risk of injury, charge Metabo HPT rechargeable battery multi-volt type series and BSL18 series. Another type of battery may burst causing personal injury and damage.
4. Use of an attachment not recommended or sold by the battery charger manufacturer may result in a risk of fi re, electric shock, or injury to persons.
5. To reduce the risk of damage to the electric plug and cord, pull the plug when disconnecting the battery charger.
6. Make sure the cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.
7. An extension cord should not be used unless absolutely necessary. The use of an improper extension cord could result in a risk of fi re and electric shock. If an extension cord must be used make sure:
   a. That blades of extension cord are the same number, size, and shape as those of plug on battery charger:
   b. That extension cord is properly wired and in good electrical condition; and
   c. That wire size is large enough for the AC ampere rating of the battery charger as specifi ed in Table 1.

Table 1

RECOMMENDED MINIMUM AWG SIZE FOR
EXTENSION CORDS FOR BATTERY CHARGERS
AC Input Rating Amperes*| AWG Size of Cord
Equal to or greater than| but less than| Length of Cord. Feet (Meter)
25 (7.5)| 50 (15)| 100 (30)| 150 (45)
0
2
3| 2
3
4| 18
18
18| 18
18
18| 18
16
16| 16
14
14

• If the input rating of a battery charger is given in watts rather than in amperes, the corresponding ampere rating is to be determined by dividing the wattage rating by the voltage rating–for example: 

  8. Do not operate a battery charger with a damaged cord or plug replace them immediately.
  9. Do not operate the battery charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualifi ed serviceman.
  10. Do not disassemble the battery charger; take it to a qualifi ed serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.
  11. To reduce the risk of electric shock, unplug the charger from the receptacle before attempting any maintenance or cleaning. Removing the battery will not reduce this risk.

IMPORTANT SAFETY INSTRUCTIONS FOR THE USE OF THE BATTERY AND BATTERY CHARGER
You must charge the battery before you can use the power tool. Before using the model UC18YFSL battery charger, be sure to read all instructions and cautionary statements on it, the battery, and in this manual.
REMEMBER: USE ONLY Metabo HPT BATTERY TYPES BSL18 SERIES. OTHER TYPES OF BATTERIES MAY BURST AND CAUSE INJURY!
Follow these instructions to avoid the risk of injury:
WARNING
Improper use of the battery or battery charger can lead to serious injury. To avoid these injuries:

1. NEVER disassemble the battery.
2. NEVER incinerate the battery, even if it is damaged or is completely worn out. The battery can explode in a fire.
3. NEVER short-circuit the battery.
4. NEVER insert any objects into the battery charger’s air vents. Electric shock or damage to the battery charger may result.
5. NEVER charge outdoors. Keep the battery away from direct sunlight and use only where there is low humidity and good ventilation.
6. NEVER charge when the temperature is below 32°F (0°C) or above 104°F (40°C).
7. NEVER connect two battery chargers together.
8. NEVER insert foreign objects into the hole for the battery or the battery charger.
9. NEVER use a booster transformer when charging.
10. NEVER use DC power to charge.
11. NEVER store the battery or battery charger in places where the temperature may reach or exceed 104°F (40°C) such as inside a metal box or car.
12. NEVER expose the battery or battery charger to rain or wet conditions.
13. ALWAYS operate the charger on standard household electrical power (120 volts). Using the charger on any other voltage may overheat and damage the charger.
14. ALWAYS wait at least 15 minutes between charges to avoid overheating the charger.
15. ALWAYS disconnect the power cord from its receptacle when the charger is not in use.

CAUTION ON LITHIUM-ION BATTERY
To extend the lifetime, the lithium-ion battery equips with the protection function to stop the output.
In the cases of 1 to 3 described below, when using this product, even if you are pulling the switch, the motor may stop. This is not the trouble but the result of the protection function.

1. When the battery power remaining runs out, the motor stops.
   In such a case, charge it up immediately.

2. If the tool is overloaded, the motor may stop. In this case, release the switch of tool and eliminate causes of overloading. After that, you can use it again.

3. If the battery is overheated under overload work, the battery power may stop.
   In this case, stop using the battery and let the battery cool. After that, you can use it again.

Furthermore, please heed the following warning and caution.

WARNING
In order to prevent any battery leakage, heat generation, smoke emission, explosion, and ignition beforehand, please be sure to heed the following precautions.

1. Make sure that swarf and dust do not collect on the battery.
   ○ During work make sure that swarf and dust do not fall on the battery.
   ○ Make sure that any swarf and dust falling on the power tool during work do not collect on the battery.
   ○ Do not store an unused battery in a location exposed to swarf and dust.
   ○ Before storing a battery, remove any swarf and dust that may adhere to it, and do not store it together with metal parts (screws, nails, etc.).

2. Do not pierce the battery with a sharp object such as a nail, strike with a hammer, step on, throw or subject the battery to severe physical shock.

3. Do not use an apparently damaged or deformed battery.

4. Do not use the battery for a purpose other than those specified.

5. If the battery charging fails to complete even when a specifi ed recharging time has elapsed, immediately stop further recharging.

6. Do not put or subject the battery to high temperatures or high pressure such as into a microwave oven, dryer, or high-pressure container.

7. Keep away from fi re immediately when leakage or foul odor are detected.

8. Do not use it in a location where strong static electricity generates.

9. If there is battery leakage, foul odor, heat generated, discolored or deformed, or in any way appears abnormal during use, recharging, or storage, immediately remove it from the equipment or battery charger and stop use.

10. Do not immerse the battery or allow any fluids to flow inside. Conductive liquid ingress, such as water, can cause damage resulting in fi re or explosion.
    Store your battery in a cool, dry place, away from combustible and flammable items. Corrosive gas atmospheres must be avoided.

CAUTION

1. If liquid leaking from the battery gets into your eyes, do not rub your eyes and wash them well with fresh clean water such as tap water and contact a doctor immediately.
   If left untreated, the liquid may cause eye problems.

2. If liquid leaks onto your skin or clothes, wash well with clean water such as tap water immediately. There is a possibility that this can cause skin irritation.

3. If you fi nd rust, foul odor, overheating, discolor, deformation, and/or other irregularities when using the battery for the first time, do not use and return it to your supplier or vendor.

WARNING
If an electrically conductive foreign object enters the terminals of the lithium-ion battery, a short-circuit may occur resulting in the risk of fi re.
Please observe the following matters when storing the battery.

• Do not place electrically conductive cuttings, nails, steel wire, copper wire, or other wire in the storage case.
• Either install the battery in the power tool or store it by securely pressing it into the battery cover until the ventilation holes are concealed to prevent short-circuits (See Fig. 3)

REGARDING LITHIUM-ION BATTERY TRANSPORTATION

When transporting a lithium-ion battery, please observe the following precautions.
WARNING
Notify the transporting company that a package contains a lithium-ion battery, inform the company of its power output, and follow the instructions of the transportation company when arranging transport.

• Lithium-ion batteries that exceed a power output of 100 Wh are considered to be in the freight classifi cation of Dangerous Goods and will require special application procedures.
• For transportation abroad, you must comply with international law and the rules and regulations of the destination country.

SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO OTHER USERS
AND
OWNERS OF THIS TOOL!

FUNCTIONAL DESCRIPTION

NOTE
The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool.
NEVER operate, or attempt any maintenance on the tool unless you have first read and understood all safety instructions contained in this manual.
Some illustrations in this Instruction Manual may show details or attachments that diff er from those on your own power tool.

NAME OF PARTS

1. Cordless Caulking Gun

2. Battery
   (optional accessories…sold separately)

3. Battery Charger
   (optional accessories…sold separately)

SPECIFICATIONS

1. Cordless Caulking Gun
   Model| AC18DA
   ---|---
   Motor| DC motor
   Dispensing speed| 0-33 inch/min (0-14 mm/s)
   Maximum dispensing force| 674 lbs (3,000 N)
   Battery| Type| Li-ion battery Model BSL18300 (3.0 Ah)
   Voltage| DC 18 V
   Weight| 5.1 lbs. (2.3 kg) (BSL18300 attached)
2. Battery Charger
   Model| UC18YFSL
   ---|---
   Input power source| Single-phase: AC 120 V 60 Hz
   Charging time (At a temperature of 68°F (20°C))| BSL1830C: Approx. 45 min
   Charging voltage| DC 14.4-18 V
   Charging current| DC 3.5 A
   Weight| 1.1 lbs. (0.5 kg)

NOTE: The charging time may vary according to temperature and power source voltage.

ASSEMBLY AND OPERATION

APPLICATIONS

• Applying in ducts, kitchens, bathrooms, exterior walls, etc.
• Filling joints of exterior walls or tile
• Reinforcing airtightness and waterproofi ng
• Joining and attaching plate glass, and repairing aquariums

INSTALLING AND REMOVING THE BATTERY

• How to install the battery.
  Align the battery with the groove in the tool handle and slip it into place.
  Always insert it all the way until it locks in place with a little click, If not, it may accidentally fall out of the tool, causing injury to you or someone around you (Fig. 5).

• How to remove the battery.
  Withdraw the battery from the tool handle while pressing the latch (2 pcs) of the battery (Fig. 5).

CHARGING METHOD
NOTE
Before plugging into the receptacle, make sure of the following points.

• The power source voltage is stated on the nameplate.
• The cord is not damaged.

WARNING
Do not charge at a voltage higher than indicated on the nameplate.
If charged at a voltage higher than indicated on the nameplate, the charger will burn out.

1. Connect the charger’s power cord to a receptacle. When the power cord is connected, the charge indicator lamp will blink in red. (At 1-second intervals)
   WARNING
   Do not use the electrical cord if damaged. Has it been repaired immediately?

2. Insert the battery into the battery charger.
   Firmly insert the battery into the battery charger as shown in Fig. 6.

3. Charging
   When inserting a battery into the charger, the pilot lamp will light up continuously in red.
   When the battery becomes fully recharged, the pilot lamp will blink in red. (At 1- second intervals.) (See Table 2)
   (1) Lamp indication
   The indications of the pilot lamp will be as shown in Table 2, according to the condition of the battery charger or the battery.

Table 2

Indications of the pilot lamp

Pilot lamp (red)| Before charging| Blinks
Lights for 0.5 seconds. Does not light for  0.5 seconds. (off for 0.5 seconds)| Plugged into a power source
While charging| Lights
Lights continuously|
Charging complete| Blinks
Lights for 0.5 seconds. Does not light for 0.5 seconds. (off for 0.5 seconds)
Overheat standby| Blinks
Lights for 1 second. Does not light for 0.5 seconds. (off for 0.5 seconds)| Battery overheated.
Unable to charge.
(Charging will commence when the battery cools)
Charging impossible| Flickers
Lights for 0.1 seconds. Does not light for 0.1 seconds. (off for 0.1 seconds)| Malfunction in the battery or the charger

(2) Regarding the temperature of the rechargeable battery.
The temperatures for rechargeable batteries are as shown in Table 3, and batteries that have become hot should be cooled for a while before being recharged.

Table 3

(3) Regarding recharging time (At 68°F (20°C))

Table 4 Charging time

NOTE
The recharging time may vary according to the ambient temperature.
4. Disconnect the battery charger from the receptacle.

CAUTION
Do not pull the plug out of the receptacle by pulling on the cord.
Make sure to grasp the plug when removing from the receptacle to avoid damaging the cord.

5. Remove the battery from the battery charger.
Supporting the battery charger with a hand, pull out the battery from the battery charger.
NOTE
Be sure to pull out the battery from the battery charger after use, and then keep it.
Regarding electric discharge in case of new batteries, etc.
As the internal chemical substance of new batteries and batteries that have not been used for an extended period is not activated, the electric discharge might be low when using them the first and second time. This is a temporary phenomenon, and the normal time required for recharging will be restored by recharging the batteries 2–3 times.
How to make the batteries perform longer
(1) Recharge the batteries before they become completely exhausted.
When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after use. If such a battery is recharged immediately after use, its internal chemical substance will deteriorate, and the battery life will be shortened. Leave the battery and recharge it after it has cooled for a while

CAUTION

• When the battery charger has been continuously used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging.
• If the battery is charged while it is heated because it has been left for a long time in a location subject to direct sunlight or because the battery has just been used, the pilot lamp of the charger lights for 1 second, does not light for 0.5 seconds (off for 0.5 seconds). The battery will not be recharged. In such a case, let the battery cool before charging.
• When the pilot lamp fl ickers (at 0.2-second intervals), check for and take out any foreign objects in the charger’s battery connector. If there are no foreign objects, it is probable that the battery or charger is malfunctioning. Take it to your authorized Service Center.

PRIOR TO OPERATION
CAUTION
To avoid serious accidents, ensure the switch is in the OFF position, and pull out the battery.

1. Check the work area environment
   Check the work area to make sure that it is clear of debris and clutter.
   Clear the area of unnecessary personnel. Ensure that lighting and ventilation is adequate.

2. Power switch
   Ensure that the switch is in the OFF position.

3. Using the hook
   You can use the hook to briefl y set aside the tool during operation.
   You can change the hook’s position to the left or right

WARNING

• The hook is not for hanging the tool on your person.
  To avoid injury, do not hang the tool from your belt, trousers, or any other part of your body.

• Do not use the hook in high places.
  Doing so could result in unexpected accidents such as dropping the tool.

• When using the hook, make sure the tool is placed in a stable location where it won’t slip off or be dislodged by the wind.

CAUTION
Install securely the hook. Unless the hook is securely installed, it may cause an injury while using.
(1) Installing the hook.
Install securely the hook in the groove of the power tool and tighten the screws to fi x the hook fi rmly. (Fig. 8)
4. Types of sealing materials
There are three types of sealing materials that the tool can use.
Refer to Table 5 for the appropriate holder for the sealing material you are using.

Table 5

Buckets

CAUTION
Before use, refer also to the directions on the packaging of the sealing material to ensure that you use it correctly.
NOTE
Do not make the diameter of the cut cross-section of the nozzle 3 mm or smaller. Doing so may cause leakage of sealing material on the piston side or damage to the cartridge.
5. Exchanging the piston
The piston can be mounted to the rack by simply screwing it in. No screws or tools are required, so it is easy to exchange the piston even in the middle of working. (Fig. 9)
The piston to be used depends on the sealing material. Refer to Table 6 for the corresponding pistons. Table 6

6. Exchanging the holder
< Removing the 300 ml holder >
(1) Hold the holder nut and turn the holder in the direction of the arrow to remove it from the main body. (Fig. 10)![HiKOKI AC 18DA Cordless Caulking Gun

• FIG 10](https://manuals.plus/wp-content/uploads/2022/07/HiKOKI-AC-18DA- Cordless-Caulking-Gun-FIG-10.png)(2) Loosen the screw at the rear of the rack handle and remove the rack handle from the rack. (Fig. 11) (3) While pressing the release button to release the lock, pull the rack out from the front side of the main body. (Fig. 12)

When installing, perform the reverse of the removal procedure.
< Attaching the 600 ml holder >
(1) Attach the piston that corresponds to the sealing material to be used by screwing it into the rack.
(2) While pressing the release button to release the lock, insert the rack from the front side of the main body. Insert it so that the teeth of the rack are facing downwards. (Fig. 13) (3) Attach the rack handle to the rack with the screw.
(4) Attach the 600 ml holder by inserting it into the holder nut and turning it in the direction of the arrow until it comes into contact. (Fig. 14)

< Attaching the 800 ml holder >
(1) While pressing the release button to release the lock, insert the rack from the front side of the main body. Insert the rack so that the teeth are facing downward and the female threads are on the rack-handle side. (Fig. 15)

(2) Attach the rack handle to the rack with the screw.
(3) Attach the 800 ml holder by inserting it into the holder nut and turning it in the direction of the arrow until it comes into contact. (Fig. 16)(4) Screw the piston onto the rack.
NOTE
When removing the 800 ml holder, remove the piston from the rack before removing the holder, as the piston will get stuck when the holder is removed.
7. Loading the sealing material
CAUTION
Please also check the information on the sealing material package before use.

(2) Remove the nozzle and use the cut end to break the membrane inside the cartridge, then return it to its original position. (Fig. 18)

(3) While pushing the release button on the main body to release the lock, pull the rack handle backward to bring the piston closer to the main-body side. (Fig. 19)(4) Load the cartridge into the holder. (Fig. 20)< Sausages >
(1) Press the release button on the main body to release the lock, then pull the rack handle backward to bring the piston closer to the main-body side. (Fig. 19)
(2) Place the sausage in the 600 ml holder and cut the closed-off portion at the tip. (Fig. 21) (3) Combine the holder cap and the nozzle, and attach them to the holder.
Cut the tip of the nozzle to 3 mm or more before use. (Fig. 22) < Bucket >
Prepare the sealing material in advance so that it is ready for use, according to the sealing material’s instruction manual.
(1) Place the tip of the 600 ml holder into the container that the sealing material is in.
While pressing the release button to unlock, pull the rack handle to suction up the sealing material. (Fig. 23) (2) Combine the holder cap and nozzle and attach them to the holder. Cut the tip of the nozzle to 3 mm or more before use. (Fig. 22)
NOTE
After suctioning up, lightly wipe any sealing material that is adhered to the edge of the holder before attaching the holder cap.

WARNING
If the battery is inserted while the power switch is in the ON position, the power tool will start operating immediately, inviting serious accidents.
CAUTION
Until the battery locks in place with a little click, if not, it may accidentally fall out of the tool causing injury to you or someone around you.

OPERATION
WARNING
During use, hold the tool body securely with both hands.
CAUTION

• Do not put an unreasonable burden on the tool that causes the motor to lock, such as attempting to use hardened sealing material.
  Remove hardened sealing material, as it may cause malfunction.

• Keep your hands away from moving parts while using the tool.
  There is a risk of pinching your fingers.

• Wear safety glasses while working.

1. Switch operation
Pull the trigger switch to push the piston out. At first, pull the switch just a little, and start slowly. (Fig. 24) When the switch is released, the piston will back up
slightly before stopping. This prevents the sealing material remaining at the end of the nozzle from dripping.
2. Dial
The dial can be used to set the maximum push-out speed to six levels. (Fig. 25)
Use it while also adjusting the amount that the switch is pulled to achieve the optimum speed, depending on the hardness of the sealing material and the temperature.
NOTE
If the cross-section of the nozzle is small (3 mm or smaller) or if the sealing material is pushed out at a fast speed at low temperature, there is a possibility of sealing material leakage to the piston side.

3. How to use the LED light
While the switch is pulled, the LED light will automatically light up the tip portion of the tool. (Fig. 26)
The LED light will automatically turn off the switch is released. CAUTION

• Do not expose directly your eye to the light by looking into the light.
  If your eye is continuously exposed to the light, your eye will be hurt.

• Wipe off any dirt or grime attached to the lens of the LED light with a soft cloth, being careful not to scratch the lens.
  Scratches on the lens of the LED light can result in decreased brightness.

4. Work tips
○ Start at low speed, and see how hard the sealing material is and how well it pushes out.
The speed is controlled by the dial and the amount that the switch is pulled.
○ Support the bottom of the holder with your hand.
○ When the sealing material adheres to the holder, wipe it off with a cloth.

NOTE
Be careful not to scratch the inside of the container with the pin.

5. LED light warning signals
This product features functions that are designed to protect the tool itself as well as the battery. While the switch is pulled, if any of the safeguard functions activate during operation, the LED light will blink as described in Table 7. When any of the safeguard functions are triggered, immediately remove your finger from the switch and follow the instructions described under corrective action.

Table 7

Screwdriver - FIG 10](https://manuals.plus/wp-content/uploads/2022/07/metabo-W -18DA-Cordless-Screwdriver-FIG-10.png)| Remove the cause of the overload.

OPERATIONAL CAUTIONS

Resting the unit after continuous work
After use for continuous work, rest the unit for 15 minutes or so when replacing the battery. The temperature of the motor, switch, etc., will rise if the work is started again immediately after battery replacement, eventually resulting in burnout.

MAINTENANCE AND INSPECTION

WARNING
Be sure to turn off the switch and pull out the battery before doing any inspection or maintenance.

1. Check the Screws
   Loose screws are dangerous. Regularly inspect them and make sure they are tight.
   CAUTION
   Using this power tool with loosened screws is extremely dangerous.

2. 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.

3. Check for Dust
   Dust may be removed with a soft cloth or a cloth dampened with soapy water.
   Do not use bleach, chlorine, gasoline, or thinner, for they may damage the plastics.

4. Inspection of terminals (tool and battery)
   Check to make sure that swarf and dust have not been collected on the terminals.
   On occasion check prior, during, and after the operation.
   CAUTION
   Remove any swarf or dust which may have collected on the terminals.
   Failure to do so may result in malfunction.

5. Lubrication
   The bearings in this tool have been suffi ciently lubricated with quality lubricating oil, taking into account the expected life of this tool under normal operating conditions. As a result, no further lubrication is necessary.

6. Disposal of the exhausted battery
   WARNING
   Do not dispose of the exhausted battery. The battery must explode if it is incinerated. The battery is recyclable. At the end of its useful life, under various state and local laws, it may be illegal to dispose of this battery in the municipal waste stream. Check with your local solid waste officials for details in your area for recycling options or proper disposal.

7. Storage
   Storing in a place below 104°F (40°C) and out of the reach of children.
   NOTE
   Storing lithium-ion batteries
   Make sure the lithium-ion batteries have been fully charged before storing them.
   Prolonged storage (3 months or more) of batteries with a low charge may result in performance deterioration, signifi cantly reducing battery usage time or rendering the batteries incapable of holding a charge.
   However, signifi cantly reduced battery usage time may be recovered by repeatedly charging and using the batteries two to fi ve times.
   If the battery usage time is extremely short despite repeated charging and use, consider the batteries dead and purchase new batteries.

8. Service and repairs
   All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a Metabo HPT AUTHORIZED SERVICE CENTER, ONLY.

** CAUTION
In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed. Important notice on the batteries for the Metabo HPT cordless power tools Please always use one of our designated genuine batteries. We cannot guarantee the safety and performance of our cordless power tool when used with batteries other than those designated by us, or when the battery is disassembled and modifi ed (such as disassembly and replacement of cells or other internal parts).**

ACCESSORIES

** WARNING
ALWAYS use Only authorized Metabo HPT replacement parts and accessories. NEVER use replacement parts or accessories which are not intended for use with this tool. Contact Metabo HPT if you are not sure whether it is safe to use a particular replacement part or accessory with your tool. The use of any other attachment or accessory can be dangerous and could cause injury or mechanical damage.  **

NOTE: Accessories are subject to change without any obligation on the part of the Metabo HPT.

STANDARD ACCESSORIES

AC18DA (NN)| 1. Hook ……………………………………………………………………………………………………………
2. Safety glasses ………………………………………………………………………………………………
Battery, battery charger, plastic case, and battery cover are not contained.
---|---

OPTIONAL ACCESSORIES

1. 600 ml holder set (Code No. 378712M)
2. 800 ml holder set (Code No. 378613M)
3. Battery (BSL1830C)
4. Battery charger (UC18YFSL)
5. Battery cover (Code No. 329897)

Please contact Koki Holdings America Ltd. at 1-800-59-TOOLS (toll-free) or Metabo HPT
AUTHORIZED POWER TOOL SERVICE CENTER regarding COLLECTION.

Issued by
Koki Holdings Co., Ltd.
Shinagawa Intercity Tower A, 15-1, Konan 2-Chome,
Minato-ku, Tokyo 108-6020, Japan
Distributed by
Koki Holdings America Ltd.
1111 Broadway Ave,
Braselton, Georgia, 30517
Koki Holdings America Ltd. Canadian Branch
3405 American Drive. Units 9-10,
Mississauga, ON, L4V 1T6
201
Code No. C99744761 G
Printed in China

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