metabo HPT NH90AB Palm Nailer Instruction Manual

HPT NH90AB Palm Nailers
Instruction Manual

NH90AB Palm Nailer

Instruction and safety manual
Model NH 90AB
Palm Nailer

DANGER
Improper use of this Nailer can result in death or serious injury!
This Manual contains important information about product safety. Read and understand this Manual before operating the Nailer. Never allow anyone who has not reviewed this manual to use the tool. This manual should be stored in safe place.

IMPORTANT SAFETY INFORMATION

Read and understand tool labels and all of the operating instructions, safety precautions and warnings in this manual before operating or maintaining this Nailer.
Failure to follow warnings could result in DEATH or SERIOUS INJURY
Most accidents that result from the operation and maintenance of Nailers 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 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 identified by DANGERS and WARNINGS on the Nailer and in this Manual.
NEVER use this Nailer for applications other than those specified in this Manual.
DEFINITIONS OF SIGNAL WORDS
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or may cause machine damage.
NOTE emphasizes essential information.

SAFETY

IMPORTANT SAFETY INSTRUCTIONS – FOR USING NAILERS
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS
● General
To reduce the risks of electric shock, fi re, and injury to persons, READ ALL THE INSTRUCTIONS BEFORE USING THE TOOL.
DANGER

1. OPERATORS AND OTHERS IN WORK AREA MUST WEAR EYE PROTECTION (SAFETY GLASSES WITH SIDE SHIELDS).
   When operating the Nailer, always wear safety glasses with side shields, and make sure others in work area wear safety glasses, too.
   Safety glasses must conform to the requirements of American National Standards Institute, ANSI Z87.1 and provide protection against flying particles both from the front and side.
   Ordinary eyeglasses do not provide adequate protection.
   The employer must enforce the use of safety glasses by the Nailer operator and others in work area.

2. NEVER USE REACTIVE GASES OR OTHER BOTTLED GASES. EXPLOSION MAY OCCUR.
   Never use reactive gases such as oxygen, combustible gases or any other bottled gases as a power source for the Nailer.
   Use of the above gases is dangerous, as the Nailer will explode.
   Use only clean, dry, regulated compressed air.
   WARNING

3. NEVER POINT TOOL AT YOURSELF OR OTHERS IN WORK AREA.
   Always assume that the Nailer contains fasteners.
   Never point the Nailer toward yourself or others, whether it contains fasteners or not.
   If fasteners are mistakenly driven, it can lead to severe injuries.
   Never engage in horseplay with the Nailer.
   Respect the Nailer as a working implement.

4. DO NOT MAKE CONTACT WITH ROD WHEN NOT DRIVING FASTENERS.

WARNING

When using tools, basic precautions should always be followed, Including the following:

1. Work area
   (1) Keep the work area clean and well lighted.
   Cluttered benches and dark areas increase the risks of electric shock, fi re, and injury to persons.
   (2) Do not operate the Nailer in explosive atmospheres, such as in the presence of flammable liquids, gases, or combustible dust.
   The Nailer is able to create sparks resulting in the ignition of the dust or fumes.
   (3) Keep bystanders, children, and visitors away while operating the Nailer. Distractions are able to result in the loss of control of the Nailer.

2. Personal safety
   (1) Stay alert. Focus on your work and use common sense when working with the Nailer. Do not use the Nailer while tired, after having consumed drugs or alcohol, or while under the influence of medication.
   A moment of inattention while operating the Nailer increases the risk of injury to persons.
   (2) Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep hair, clothing, and gloves away from moving parts.
   Loose clothes, jewelry, or long hair increases the risk of injury to persons as a result of being caught in moving parts.
   (3) Avoid unintentional starting. Be sure the switch is off before connecting to the air supply.
   Do not carry the tool with your finger on the switch or connect the tool to the air supply with the switch on.
   (4) WARNING – Disconnect the Nailer from the air source before making adjustments, doing Nailer maintenance, clearing jams, touching the Rod, when not in use, leaving work area, leaving the Nailer outside of the operator’s supervision or control, handing it to another person, elevating, lowering or otherwise moving the Nailer to a new location. Never attempt to clear a jam or repair the Nailer unless you have disconnected air hose from the Nailer. The Nailer should never be left unattended since people who are not familiar with the Nailer might handle it and injure the themselves.
   Such precautionary measures reduce the risk of injury to persons.
   (5) Do not overreach. Keep proper footing and balance at all times. Proper footing and balance enables better control of the Nailer in unexpected situations
   (6) Use safety equipment. A dust mask, non-skid safety shoes and a hard hat must be used for the applicable conditions.
   (7) WARNING – Risk of hearing loss. Wear hearing protection.
   Hearing protection shall have a Noise Reduction Rating (NRR) determined in accordance with US Environmental Protection Agency rules that is appropriate for noise exposure.
   (8) Always wear head protection.
   Head protection shall conform to ANSI Z89.1, “American National Standard for Industrial Head Protection.”
   (9) Do not attach the hose or Nailer to your body.
   Attach the hose to the structure to reduce the risk of loss of balance if the hose shifts.
   (10) WARNING – Drive Nails into proper work surface only. Do not drive nail into other nails. This is able to cause the fastener to be deflected and hit someone, or cause the Nailer to react and result in a risk of injury to persons.

3. Nailer use and care
   (1) Use clamps or another practical way to secure and support the workpiece to a stable platform.
   Holding the work by hand or against the body is unstable and is able to lead to loss of control.
   (2) Do not force the Nailer. Use the correct Nailer for the application. The correct Nailer will do the job better and safer at the rate for which the Nailer is designed.
   (3) Never use Nailer which is defective or operating abnormally. If the Nailer 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.
   (4) Connect air hose before nail loading and check the followings.
   Check for air leakage and abnormal noise.
   Use of the Nailer in an abnormal condition may cause accidents or injuries. If any abnormality is detected, ask your dealer or Metabo HPT authorized service center for repair.
   (5) Disconnect the Nailer from the air source before making any adjustments, changing accessories, or storing the Nailer.  Such preventive safety measures reduce the risk of starting the Nailer unintentionally.
   (6) Store the Nailer when it is idle out of reach of children and other untrained persons. A Nailer (7) Maintain the Nailer with care. Keep the Nailer Clean and lubricated for better and safer performance.
   (8) Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the Mailer’s operation.
   If damaged, have the Nailer serviced before using. Because of high air pressure in the Nailer, cracks in the surface are dangerous. To avoid this, do not drop the Nailer or strike the Nailer against hard surfaces; and do not scratch or  engrave signs on the Nailer. Many accidents are caused by poorly maintained Nailers. There is a risk of bursting if the Nailer is damaged.
   (9) Do not use the Nailer that is not in proper working order. Tags and physical segregation shall be used for control.
   (10) Use only accessories that are identified by Metabo HPT for the specific Nailer. Use of an accessory not intended for use with the specific Nailer, increases the risk of injury to persons.
   (11) Be aware of followings when connecting air hose.
   Make sure there is no nail in the rod.
   Otherwise, a nail may be shot mistakenly, which may result in injury.
   Keep the nail outlet pointed downward and make sure to keep your body, hands and feet away from the firing head.
   Do not place the rod tip on a table or floor.
   (12) Use dedicated nails.
   Do not use any other nails because they may result in injury or malfunction of this Nailer.
   (13) Load nail carefully.
   When loading a nail in the rod, hold the nail shaft instead of the tip.
   Otherwise, when the Nailer operates mistakenly and injuries as nailing a finger may result.
   When loading a nail in the rod, make sure it does not press the tip of the driver unit.
   If the nail is inserted to the rod excessively, it may press the tip of the driver unit. By this, the Nailer may operate mistakenly, which may result in injury.
   (14) Be aware of followings when shooting nail holding with fingers.
   Shoot the nail by placing the nail tip at a target first, and then inserting the rod to the nail head.
   If the nail tip is not placed firmly or the nail head is firstly inserted to the rod, injuries may result when the nail bounces back or is shot mistakenly.
   (15) Avoid long time nailing operation.
   Make sure to finish nailing in as short a time as possible. Also, avoid continuous operation and allow adequate downtime between operations.

4. Service
   (1) Tool service must be performed only by qualified repair personnel.
   (2) When servicing a Nailer, use only identical replacement parts. Use only authorized parts.
   (3) Use only the lubricants supplied with the Nailer or specified by Metabo HPT.

5. Air source
   (1) Never connect to an air source that is capable of exceeding 200 psi (13.7 bar 14 kgf/cm2) if a regulator fails.
   Over pressurizing the Nailer is able to result in bursting, abnormal operation, breakage of the Nailer or serious injury to persons.
   DO NOT EXCEED 100 psi (6.9 bar 7.0 kgf/cm2).
   Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure range as marked on the Nailer.
   Always verify prior to using the Nailer that the air source has been adjusted to the rated air pressure or within the rated air-pressure range.
   (2) Never use reactive gases such as oxygen, carbon dioxide, combustible gases or any bottled gas as an air source for the Nailer. Such gases are capable of explosion and serious injury to persons.

6. Others
   (1) Be careful of hit by the Nailer due to spring back (“recoil”). After driving a nail, the Nailer may recoil causing it to move away from the work surface.
   To reduce risk of injury always manage recoil by:

1. always maintaining control of the Nailer.
2. allowing recoil to move the Nailer away from work surface.
3. keeping face and body parts away from the Nailer.
   (2) Never Use NON relieving coupler on Nailer. If a non relieving coupler is used on the Nailer, the Nailer can remain charged with air after disconnecting and thus will be able to drive a fastener even after disconnecting. The Nailer and air hose must have a hose coupling such that all pressure is removed from the Nailer when the coupling joint is disconnected.
   (3) Check Rod before use. Make sure the Rod operates properly, and is not inoperable, disconnected, or altered. This is because a rod loaded with nails acts as a switch. Never use the Nailer unless the Rod is operating properly, otherwise the Nailer could drive a fastener unexpectedly. Do not tamper with or remove the Rod, or otherwise cause the Rod to become inoperable.
   (4) Keep all screws and socket tightly in place. Keep all screws and socket tightly mounted.
   Check their condition periodically. Never use the Nailer if parts are missing or damaged.
   (5) Do not load fasteners with Rod depressed. When loading fasteners into the Nailer or when connecting the air hose,
4. do not depress the Rod;
5. keep the Nailer pointed downward.
   (6) Keep hands and body away from fi ring head during use. Never place your hands or feet closer than 8 inches (200 mm) from the fi ring head. A serious injury can result if the fasteners are deflected by the workpiece, or are driven away from the point of entry.
   (7) When working close to an edge of a workpiece or at steep angles, or driving fasteners into thin workpiece use care to minimize chipping, splitting or splintering, or free fl ight, ricochet or piercing of fasteners, which may cause  injury.
   (8) Never drive fasteners from both sides of a wall at the same time. The fasteners can be driven into and through the wall and hit a person on the opposite side.
   (9) Use extra caution when driving the Nailer into existing walls or other blind areas to prevent contact with hidden objects or persons on other side (eg., wires, pipes).
   (10) Check for live wires. Avoid the risk of severe electrical shock by checking for live electrical wires that may be hidden by walls, floors or ceilings. Turn off the breaker switch to ensure there are no live wires.
   (11) Do not lift, pull or lower the Nailer by the hose.
   (12) Handle Nailer correctly. Operate the Nailer according to this Manual. Never allow the Nailer to be operated by children, individuals unfamiliar with its operation or unauthorized personnel.
   (13) Never use Nailer for applications other than those specified in this manual.
   (14) Never modify or alter a Nailer. Doing so may cause it to malfunction and personal injuries may result.

RESPONSIBILITIES OF EMPLOYER, TOOL OWNER AND TOOL OPERATOR

1. Ensure that this MANUAL is available to operators and personnel performing maintenance.

2. Train the operator in the safe use of the Nailer as described in this MANUAL.

3. Ensure that only persons who have read and understand this MANUAL operate the Nailer.

4. Ensure that Nailers are used only when operators and others in work area are wearing EYE
   PROTECTION, and other appropriate personal protective equipment such as HEAD, HEARING, FOOT PROTECTION.

5. Enforce the use of EYE PROTECTION by operators and others in work area.

6. Ensure that Nailers are kept in safe working order as described in this MANUAL.

7. Maintain Nailers properly.

8. Ensure that only qualified personnel shall repair Nailers.

9. Ensure that Nailers that require repair are removed from service and that tags and physical segregation are used as a means of control.

SAVE THIS MANUAL AND KEEP IT AVAILABLE FOR OTHERS!

OPERATION

NOTE:
The information contained in this Manual is designed to assist you in the safe operation of the Nailer.
Some illustrations in this Manual may show details or attachments that diff er from those on your own Nailer.
NAME OF PARTS

SPECIFICATIONS

Operating pressure| 80 -100 psi (5.5 – 6.9 bar                         5.6 – 7.0 kgf/cm2)
---|---
Dimensions Length x Height x Width| 3-9/64″ x 4-3/8″ x 2-23/32″ (80 mm x 111 mm x 69 mm)
Weight| 1.3 lbs (0.60 kg)
Air consumption| .706 ft3/cycle at 100 psi, .162″ x 3-1/2″ Common Nail (20.0 lt/cycle at 7 kgf/cm2)

NAIL SELECTION

Use nails in following sizes for this Nailer.

Range|

Common Nails
Length Shank Dia. Head Dia.

| Range|

Box Nails
Length Shank Dia. Head Dia.

|

Sinker Nails
Range Length Shank Dia. Head Dia.

---|---|---|---|---
8d| 21/2″| .131″| .281″| 8d| 21/2″| .113″| .297″| | | |
9d| 2 3/4″| .131″| .281″| 9d| 2 3/4″| .113″| .297″| | | |
10d| 3″| .148″| .312″| 10d| 3″| .128″| .312″| 10d| 2 7/8″| .120″| .281″
12d| 3 1/4″| .148″| .312″| 12d| 3 1/4″| .128″| .312″| 12d| 3 1/8″| .135″| .312″
16d| 3 1/2″| .162″| .344″| 16d| 3 1/2″| .135″| .344″| 16d| 3 1/4″| .148″| .344″

WARNING

• Do not use nails in any other sizes. They may damage the rod or be shot in a slanting direction.
• Be careful of nail head sizes. Nail head size may vary between large and small with commercially available bulk nails. Do not use nails with heads that do not fi t into the rod (D1) or heads that can go into the wall in the rod (D2).
• To verify the size of a nail head, remove the air hose.
• Do not use hardened nails.

ACCESSORIES

WARNING
● Accessories other than those shown below can lead to malfunction and resulting injuries.

1 oz. (30 cc) oil feeder (Code No. 877153)
4 oz. (120 cc) oil feeder (Code No. 874042)
1 quart (1 ltr) can (Code No. 876212)

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

APPLICATIONS
○ Wooden materials in general constructions, fittings, wood decks, frameworks, and renovations
BEFORE OPERATION
Read section titled “SAFETY” (pages 1 – 3).
Make sure of the followings before operation.
WORKING ENVIRONMENT
WARNING

• No flammable gas, liquid or other flammable objects at worksite.
• Clear the area of children or unauthorized personnel.

AIR SUPPLY

DANGER

• NEVER use reactive gases or other bottled gases. Explosion may occur.

WARNING

• Never connect Nailer to pressure which potentially exceeds 200 psi (13.7 bar 14 kgf/cm2) if a regulator fails.
• Never use non relieving coupler on Nailer.

1. Power source
   ○ Use only clean, dry, regulated compressed air as a power source for this Nailer.
   ○ Air compressors used to supply compressed air to this Nailer must comply with the requirements of the latest version of ANSI Standard B 19.3 “Safety Standard For Compressors For Process Industries”.
   ○ Moisture or oil in the air compressor may accelerate wear and corrosion in the Nailer. Drain daily.

2. Filter-Regulator-Lubricator
   ○ Use a regulator with a pressure range of 0 – 100 psi (0 – 6.9 bar 0 – 7.0 kgf/cm2).
   ○ Filter-regulator-lubricator units supply an optimum condition for the Nailer and extend the Nailer life.
   These units should always be used.
   Filter ………… The filter removes moisture and dirt mixed in compressed air.
   Drain daily unless fitted with an automatic drain. Keep the filter clean by regular maintenance.
   Regulator ….. The regulator controls the operating pressure for safe operation of the Nailer.
   Inspect the regulator before operation to be sure it operates properly.
   Lubricator …. The lubricator supplies an oil mist to the Nailer.
   Inspect the lubricator before operation to be sure the supply of lubricant is adequate.
   Use Metabo HPT pneumatic tool lubricant.

3. Air hose
   Compressed air supply hoses shall have a minimum working pressure rating equal to or greater than the pressure from the power source if a regulator fails, or 150 psi (10.4 bar 10.6 kgf/cm2), whichever is greater.

4. Air consumption
   Using the Air consumption table and the Air compressor size formula, fi nd a correct compressor size.
   Air consumption table

Air compressor size formula
Amount of air required
= number of Nailers
× average nails driven each minute per Nailer
× air consumption at given air pressure
× safety factor (always 1.2)
Example: 2 Nailers (NH90AB)operating at 100 psi driving 2 nails per minute
Amount of air required
= 2 × 2 × .706 (20.0) × 1.2
= 3.4 CFM (ft3/min) (96.0 ltr/min)
After making the calculations as shown above, you should fi nd a compressor providing 3.4 CFM of air that is required.
LUBRICATION
It is important that the Nailer be properly lubricated.
Without proper lubrication, the Nailer will not work properly and parts will wear prematurely.
○ Use metabo HPT pneumatic tool lubricant.
Do not use detergent oil or additives. These lubricants will harm the O-rings and other rubber parts.
This will cause the Nailer to malfunction.
○ Filter-regulator-lubricator units should always be used.
Keep the lubricator filled with metabo HPT pneumatic tool lubricant.
○ If a lubricator is not available, supply 3 drops min. of metabo HPT pneumatic tool lubricant into the air plug on the Nailer every 1500 shots.
COLD WEATHER CARE
○ Do not store the Nailer in a cold weather environment. Keep the Nailer in a warm area until beginning the work.
○ If the Nailer is already cold, bring it in a warm area and allow the Nailer to warm up before use.

1. Reduce the air pressure to 64 psi (4.4 bar 4.5 kgf/cm2).
2. Remove nail from the Nailer.
3. Connect the air hose and free-fi re (blank-fi re) the Nailer.
   The lowered air pressure will be enough to free-fi re the Nailer.
   Slow speed operation tends to warm up the moving part.
   CAUTION
   ● Do not free-fire the Nailer at high pressure.

TESTING THE NAILER
DANGER
● Operators and others in work area MUST wear safety glasses with side shields which conforms to ANSI Z87.1 specifications.
Ordinary eyeglasses do not provide adequate protection.
WARNING
● Never use Nailer unless rod is operating properly.
Before actually beginning the nailing work, test the Nailer by using the checklist below. Conduct the tests in the following order.
If abnormal operation occurs, stop using the Nailer and contact a metabo HPT authorized service center immediately.
(1) DISCONNECT AIR HOSE FROM NAILER.
REMOVE NAIL FROM NAILER.
□ ALL SCREWS MUST BE TIGHTENED.
If any screws are loose, tighten them.

(2) Adjust the air pressure to 80 psi (5.5 bars 5.6 kgf/cm2).
Connect the air hose.
Do not load nail in the Nailer.
Do not place the rod tip on a table or floor.
Do not point the fi ring head at yourself and others in work area.
□ THE NAILER MUST NOT LEAK AIR.
Hold the Nailer downward.
□ THE NAILER MUST NOT OPERATE.
There may be operation noises once or twice when connecting an air hose, but it is a normal phenomenon.

ADJUSTING AIR PRESSURE
WARNING

● Do not exceed 100 psi (6.9 bars 7.0 kgf/cm2).
Adjust the airpressure at recommended operating pressure 80 – 100 psi (5.5 – 6.9 bar 5.6 – 7.0 kgf/cm2) according to the length of nails and the hardness of workpiece.
The correct air pressure is the lowest pressure which will do the job. Using the Nailer at a higher than required air pressure unnecessarily over stresses the Nailer.
NAILER OPERATION
Read section titled “SAFETY”(pages 1 – 3).
DANGER
● Operators and others in work area MUST wear safety glasses with side shields which conforms to ANSI Z87.1 specifications.
Ordinary eyeglasses do not provide adequate protection.
WARNING

• Only person who have read and understand this MANUAL should operate the Nailer.
• NEVER point tool at yourself or others in work area.
• Never place your face, hands or feet near fi ring head when using.
• Never place your hands or body closer than 8 inches (200 mm) from fi ring head when using.
• Do not drive nails into other nails; nails can ricochet and hurt someone.
• Do not actuate Nailer unless Nailer is placed firmly against the workpiece.
• When working close to an edge of a workpiece or at steep angles, or driving fasteners into thin workpiece use care to minimize chipping, splitting or splintering, or free fl ight, ricochet or piercing of fasteners, which may cause injury.
• Never drive nails from both sides of a wall at the same time. Nails can be driven into and through the wall and hit a person on the opposite side.
• Never use Nailer which is defective or operating abnormally.
• Do not use Nailer as hammer.
• Disconnect air hose from Nailer when:

1. it is not in use;
2. leaving work area;
3. elevating, lowering or otherwise moving it to another location;
4. handing it to another person.
5. performing any maintenance or repairs;
6. clearing a jam;
7. Nailer is outside of the operator’s supervision or control;
8. removing nails from the rod;

• Oil may be leaked from the exhaust outlet of the Nailer while in use due to its structural characteristic.

METHODS OF OPERATION

WARNING

• Make sure to wear safety glasses during operation.

• Exercise due caution to ensure safety of others in work area during operation.

• Do not point the fi ring head at yourself and others in work area.

• Keep your body, hands and feet away from the fi ring head during operation.

• Do not use the Nailer head or body as a hammer.
  CAUTION

• When the Nailer is used at a low temperature, its operation may slow down.

1. How to shoot a nail
Shooting by holding a nail with the magnet
WARNING

• When loading a nail in the rod, hold the nail shaft instead of the tip.
• When loading a nail in the rod, make sure it does not press the tip of the driver unit.
• When loading a nail in the rod, do not place your fingers or hands below the tip of a nail.

A Nail can be shot by holding it with the magnet.
(1) Hold the nail shaft lightly with fingers and insert the nail head to the rod. Magnetically hold the nail near the main

(2) Place the nail tip at a target and press the Nailer to shoot the nail.

Shooting by holding a nail with fingers.
CAUTION
● When shooting a nail holding it with fingers, place the nail tip at a target first, and then insert the rod to the nail head.

1. Holding the nail shaft lightly, place the nail tip at a target.
2. Insert the nail head to the rod and press the Nailer lightly to shoot the nail to the extent that it becomes stable.
3. After the nail is stabilized to some extent, release the fingers from it and press the Nailer to make the nail head completely fl at.

2. Efficient work
(1) The Nailer may take a long time to shoot a nail when the operating pressure is low, or hard timber or long nails are used. In such cases, it is advisable to set the operating air pressure to 100 psi (6.9 bar, 7.0 kgf/m2) for efficient work.
(2) When the Nailer is pressed firmly or used continuously, it may become inoperative due to decreased pressure of the air compressor. In such cases, wait until the air compressor’s pressure increases sufficiently to use the Nailer.
3. Precautions on idle shooting
NOTE:
● “Idle shooting” means that the Nailer is pressed and operated even though no nail is shot or the Nailer continues to be pressed and operated even after a nail is shot. If idle shooting is continued, each part of the Nailer may be affected. Take extra care not to do idle shooting.
● After nailing:

1. disconnect air hose from the Nailer;
2. remove nail from the Nailer;
3. supply 3 drops min. of metabo HPT pneumatic tool lubricant into the air plug on the Nailer; and
4. open the petcock on the air compressor tank to drain any moisture.

MAINTENANCE

NOTE:
The information contained in this Manual is designed to assist you in the safe maintenance of the Nailer.
Some illustrations in this Manual may show details or attachments that differ from those on your own Nailer.
MAINTENANCE AND INSPECTION
Read section titled “SAFETY” (pages 1 – 3).
WARNING
● Disconnect air hose and remove nail from Nailer when:

1. doing maintenance and inspection; and
2. clearing a jam.
   ● Without connecting the air hose, check if the rod moves steadily by pressing the rod tip against a material such as of wood.

1. Clearing a jam
   Remove a jammed nail in the following order:
   1 DISCONNECT AIR HOSE.
   2 Remove the jammed nail with a slotted screw driver. 3 In case of frequent jam, contact a metabo HPT authorized service center.

2. Inspection of mounting screws?
   Periodically inspect the mounting screws of each part for looseness.
   If any screw is loose, retighten it.
   If the Nailer is used with any screw loosen, this may cause an accident such as injury.

3. Prevention of dirt and dust
   ○ To prevent dirt or dust from entering the inside, wipe the opening clean before connecting the air hose.
   ○ When performing lubrication before and after work, be sure to use clean oil. Dirt or dust in oil may block the air supply hole or damage the sliding part.

4. Rod inspection

Periodically clean and lubricate the sliding part of the rod and socket.

Check if the rod moves smoothly by pressing the Nailer against a material such as of wood.

Lubrication prevents the rod and socket from rusting and smoothens the movement of the rod.

When iron powders or the like adheres to the magnetized area within the rod, the power to magnetically hold a nail may be reduced. Wipe the area clean with a cloth or adhesive tape sometimes.

Also, clean the iron powder on the magnet outside the rod with cloth or adhesive tape sometimes.

It makes the rod operation smooth.

5. Storing
   ○ When not in use for an extended period, apply a thin coat of the lubricant to the steel parts to avoid rust.
   ○ Do not store the Nailer in a cold weather environment. Keep the Nailer in a warm area.
   ○ When not in use, the Nailer should be stored in a warm and dry place. Keep out of reach children.

6. WARNING LABEL
   Do not use the Nailer with missing or damaged WARNING LABEL.
   A new WARNING LABEL is available from a metabo HPT authorized service center.

7. Maintenance chart (See page 9)

8. Operator troubleshooting (See page 10)

9. Service parts list

CAUTION
● Repair, modification and inspection of metabo HPT Power Tools must be carried out by a metabo HPT Authorized Service Center.
This Parts List will be helpful if presented with the tool to the metabo HPT Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.
MODIFICATIONS:
metabo HPT Power Tools are constantly being  improved and modified to incorporate the latest technological advancements. Accordingly, some parts may be changed without prior notice.
SERVICE AND REPAIRS

WARNING

• Only service personnel trained by metabo HPT, distributor or employer shall repair the Nailer.
• Use only parts supplied or recommended by metabo HPT for repair.

All quality Nailers will eventually require servicing or replacement of parts because of wear from normal use.
NOTE:
Specifications are subject to change without any obligation on the part of metabo HPT.
Maintenance chart

manual petcock.
Keep lubricator filled.| Keep the Nailer lubricated.| Fill with metabo HPT pneumatic tool lubricant.
Keep rod working properly.| Promote operator efficient Nailer operation.| Blow clean daily.
Lubricate the Nailer after nailing.| Extend the Nailer life.| Supply 3 drops min. of lubricant into the Nailer.
Drain air compressor daily.| Keep the Nailer operated properly.| Open petcock on air compressor tank.

Operator troubleshooting

Most minor problems can be resolved quickly and easily using the table below.
If problems persist, contact a metabo HPT authorized service center for assistance.

page 8.
Check for proper nails.| Use only recommended nails.
Weak drive. Slow to cycle.| Check air pressure.| Increase air pressure. (Do not exceed 100 psi (6.9 bars, 7.0 kgf/cm2))
| Use metabo HPT pneumatic tool lubricant.
Driver unit worn?| Contact metabo HPT for replacement.
0 — ring worn or damaged?
Drives too deep.| Check air pressure.| Reduce air pressure. (Adjust 80 —100 psi (5.5 — 6.9 bar 5.6 — 7.0 kgf/cm2))
Nails jam. Driven nail is bent.| Check for proper nails.| Use only recommended nails.
Driver unit worn?| Contact metabo HPT for replacement.
Drives properly during normal operation, but does not drive fully at faster nailing speeds.| Check inside diameter of air hose.| Use larger air hose.

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
806
Code No. C99227461
Printed in Taiwan

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