Central Pneumatic 69927 21° Angle Full Head Framing Air Nailer Specifications

Safety ......................................................... 2

Specifications ............................................. 7

Setup .......................................................... 8

Operation ................................................... 11

Table of Contents

Maintenance .............................................. 14

Parts List and Diagram .............................. 18

Warranty .................................................... 20

WARNING SYMBOLS AND DEFINITIONS

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.

Obey all safety messages that follow this symbol to avoid possible injury or death.

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Addresses practices not related to personal injury.

Symbol

PSI

Property or statement

Pounds per square inch of pressure

Symbol Property or statement

Warning marking concerning

Risk of Puncture Injury.

Wear heavy-duty work gloves.

CFM

Cubic Feet per Minute flow

Read the manual before set-up and/or use.

SCFM

NPT

NPS

Cubic Feet per Minute flow at standard conditions

National pipe thread, tapered

National pipe thread, straight

WARNING marking concerning

Risk of Hearing Loss.

Wear hearing protection.


Risk of Respiratory Injury. Wear

NIOSH-approved dust mask/respirator.


Risk of Eye Injury. Wear ANSI-approved safety goggles with side shields.


Risk of Explosion.

Table A: Symbol Definitions

Page 2 For technical questions, please call 1-800-444-3353.

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IMPORTANT SAFETY INSTRUCTIONS

INSTRUCTIONS PERTAINING TO A RISK OF FIRE,

ELECTRIC SHOCK, OR INJURY TO PERSONS

WARNING – When using tools, basic precautions should always be followed, including the following:

General

To reduce the risks of electric shock, fire, and injury to persons, read all the instructions before using the tool.

Work area

a. Keep the work area clean and well lighted.

Cluttered benches and dark areas increase the risks of electric shock, fire, and injury to persons.

b. Do not operate the tool in explosive atmospheres, such as in the presence of flammable liquids,

gases, or dust. The tool is able to create sparks resulting in the ignition of the dust or fumes.

c. Keep bystanders, children, and visitors away

while operating the tool. Distractions are able to result in the loss of control of the tool.

Personal safety

a. Stay alert. Watch what you are doing and use common sense when operating the tool.

Do not use the tool while tired or under the

influence of drugs, alcohol, or medication.

A moment of inattention while operating the tool increases the risk of injury to persons.

b. 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.

c. Avoid unintentional starting. Be sure the trigger is released before connecting to

the air supply. Do not carry the tool with your finger on the trigger or connect the tool to the air supply with the trigger pressed.

d. Do not overreach. Keep proper footing and balance at all times.

Proper footing and balance enables better control of the tool in unexpected situations.

e. Use safety equipment.

A dust mask, non-skid safety shoes and a hard hat must be used for the applicable conditions. Wear heavy-duty work gloves during use.

f. Always wear eye protection.

Wear ANSI-approved safety goggles with side shields.

g. Always wear hearing protection when

using the tool. Prolonged exposure to high intensity noise is able to cause hearing loss.

h. Do not attach the hose or tool to your body.

Attach the hose to the structure to reduce the risk of loss of balance if the hose shifts.

i. Always assume that the tool contains fasteners.

Do not point the tool toward yourself or anyone whether it contains fasteners or not.

j. WARNING – Do not fire fastener on top of another

fastener. This is able to cause the fastener to be deflected and hit someone, or cause the tool to react and result in a risk of injury to persons.

k. WARNING – Remove finger from the trigger when

not driving fasteners. Never carry the tool with finger on trigger, the tool is able to fire a fastener.

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For technical questions, please call 1-800-444-3353.

Page 3

Tool use and care

a. 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 can lead to loss of control.

b. Do not force the tool. Use the correct tool for the application. The correct tool will do the job better and safer at the rate for which the tool is designed.

c. Do not use the tool if the trigger does not

turn the tool on or off. Any tool that cannot be controlled with the trigger is dangerous and must not be used until repaired.

d. Disconnect the tool from the air source before making adjustments, doing tool maintenance, clearing jams, touching the safety nosepiece, leaving work area, loading,

or unloading the tool. Such precautionary measures reduce the risk of injury to persons.

e. Store the tool when it is idle out of reach

of children and other untrained persons.

A tool is dangerous in the hands of untrained users.

Service

a. Tool service must be performed only by qualified repair personnel.

b. When servicing a tool, use only identical replacement parts. Use only authorized parts.

Air source

f. Maintain the tool with care.

A properly maintained tool reduces the risk of binding and is easier to control.

g. Check for misalignment or binding of moving parts, breakage of parts, and any other condition

that affects the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools.

There is a risk of bursting if the tool is damaged.

h. Use only accessories that are identified by the

manufacturer for the specific tool model. Use of an accessory not intended for use with the specific tool model, increases the risk of injury to persons.

i. Use only those fasteners listed in the

Specifications chart of this manual.

Fasteners not identified for use with this tool by the tool manufacturer are able to result in a risk of injury to persons or tool damage when used in this tool.

c. Use only the lubricants supplied with the tool or specified by the manufacturer.

a. Never connect to an air source that is

capable of exceeding 200 PSI.

Over pressurizing the tool may cause bursting, abnormal operation, breakage of the tool or serious injury to persons.

Use only clean, dry, regulated compressed air at the rated pressure or within the rated pressure range as marked on the tool. Always verify prior to using the tool that the air source has been adjusted to the rated air pressure or within the rated air-pressure range.

b. Never use oxygen, carbon dioxide, combustible gases or any bottled gas as an air source

for the tool. Such gases are capable of explosion and serious injury to persons.

SAVE THESE INSTRUCTIONS.


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Specific Safety Instructions

1. Operators and others in work area MUST wear ANSI-approved safety goggles with

side shields during use. The employer is responsible to enforce the use of eye protection by the operator and others in the work area.

2. Keep fingers away from trigger when not driving fasteners to avoid accidental firing.

3. Choice of triggering method is important.

Check manual for triggering options.

4. Always assume the tool contains fasteners.

5. Do not point the tool toward yourself or anyone whether it contains fasteners or not.

6. Do not actuate the tool unless the tool is placed firmly against the workpiece.

7. Respect the tool as a working implement.

8. No horseplay. This tool is not a toy and can be deadly if misused.

9. Do not load the tool with fasteners when any one of the operating controls, such as the

Trigger or Safety Nosepiece, is activated.

10. Do not remove, tamper with, or otherwise cause the tool operating controls to become inoperable.

11. Do not operate the tool if any portion of the tool operating controls is inoperable, disconnected, altered, or not working properly.

12. Disconnect the tool from the air supply when: a. Unattended.

b. Performing any maintenance or repair.

c. Clearing a jam.

d. Moving the tool to a new location.

13. Do not make any modifications to this tool.

14. Refer to the tool maintenance instructions for detailed information on the proper maintenance of the tool.

15. Fire fasteners into an appropriate work surface only.

Do not attempt to fire fasteners into surfaces too hard to penetrate. Do not drive fasteners on top of other fasteners, or at too steep of an angle.

Fasteners can ricochet causing personal injury.

16. Do not fire fasteners too close to the edge of a workpiece. They may split the workpiece and fly free, causing personal injury.

17. Keep clear of the workpiece near the area being fastened. Fasteners may bend sideways during firing, causing them to exit the workpiece at an unexpected point, causing personal injury.

18. Transport tool safely. Always disconnect air supply when moving the tool. Carry the tool by the handle and avoid contact with the trigger.

19. Hold tool away from head and body. During operation the tool may kick back causing injury.

20. Do not fire fasteners into a workpiece that has people, utility lines, or other objects behind or inside it.

21. Keep balance while using this tool.

Keep area below clear if working in an elevated location, and secure air hose to prevent falls from bystanders accidentally pulling on it.

22. Obey the manual for the air compressor used to power this tool.

23. Install an in-line shutoff valve to allow immediate control over the air supply in an emergency, even if a hose is ruptured.

24. Do not engrave or stamp anything into the housing to avoid weakening it.

25. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities, contains chemicals known [to the State of California] 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 or other masonry products

• 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.

(California Health & Safety Code § 25249.5, et seq.)

WARNING: The brass components of this product contain lead, a chemical known to the State of California to cause birth defects (or other reproductive harm).

(California Health & Safety code § 25249.5, et seq.)

26. The warnings and precautions discussed in this manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

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Vibration Precautions

This tool vibrates during use.

Repeated or long-term exposure to vibration may cause temporary or permanent physical injury, particularly to the hands, arms and shoulders.

To reduce the risk of vibration-related injury:

1. Anyone using vibrating tools regularly or for an extended period should first be examined by a doctor and then have regular medical check-ups to ensure medical problems are not being caused or worsened from use. Pregnant women or people who have impaired blood circulation to the hand, past hand injuries, nervous system disorders, diabetes, or Raynaud’s Disease should not use this tool.

If you feel any symptoms related to vibration (such as tingling, numbness, and white or blue fingers), seek medical advice as soon as possible.

2. Do not smoke during use. Nicotine reduces the blood supply to the hands and fingers, increasing the risk of vibration-related injury.

3. Wear suitable gloves to reduce the vibration effects on the user.

4. Use tools with the lowest vibration when there is a choice between different processes.

5. Include vibration-free periods each day of work.

6. Grip tool as lightly as possible (while still keeping safe control of it). Let the tool do the work.

7. To reduce vibration, maintain tool as explained in this manual. If abnormal vibration occurs, stop immediately.

SAVE THESE INSTRUCTIONS.


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Functional Description

Specifications

Model

Maximum Air Pressure

Air Inlet

Air Consumption

Safety Mechanism Type

Nail Type

69927

120 PSI

1/4″ -18 NPT

3 CFM @ 90 PSI

Single Sequential or

Contact Trip (switchable)

10 Gauge,

2-3/8″ - 3-1/4″ Long, 21° Angle,

Plastic Collated Full Head

Components and Controls

Exhaust

Mode

Switch

Trigger

69928

120 PSI

1/4″ -18 NPT

3 CFM @ 90 PSI

Single Sequential or

Contact Trip (switchable)

10 Gauge,

2-3/8″ - 3-1/4″ Long, 28° Angle,

Paper Collated Clipped Head

Air Inlet

Depth

Adjustment

Screw Safety

Nosepiece

Pusher

Safety Nosepiece - Also called the workpiece contact, the Safety Nosepiece helps prevent the tool from firing unless it is pressed against an object.

Magazine

Pusher

Lock

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Page 7

Initial Tool Set Up/Assembly

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

Note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual.

Air Supply

TO PREVENT EXPLOSION:

Use only clean, dry, regulated, compressed air to power this tool. Do not use oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power source for this tool.

4. Release the tool’s trigger and empty its magazine.

1. Incorporate a filter, regulator with pressure gauge, oiler, in-line shutoff valve, and quick coupler for best service, as shown on Figure A on page 9 and Figure B on page 10. An in-line shutoff ball valve is an important safety device because it controls the air supply even if the air hose is ruptured. The shutoff valve should be a ball valve because it can be closed quickly.

5. Close the in-line safety valve between the compressor and the tool.

6. Turn on the air compressor according to the manufacturer’s directions and allow it to build up pressure until it cycles off.

Note: If an automatic oiler system is not used, add a few drops of Pneumatic Tool Oil into the airline connection before operation.

Add a few more drops after each hour of continual use.

Note: This air tool may be shipped with a protective plug covering the air inlet. Remove this plug before set up.

7. Adjust the air compressor’s output regulator so that the air output is enough to properly power the tool, but the output will not exceed the tool’s maximum air pressure at any time.

Adjust the pressure gradually, while checking the air output gauge to set the right pressure range.

2. Attach an air hose to the compressor’s air outlet.

Connect the air hose to the air inlet of the tool.

Other components, such as a coupler plug and quick coupler, will make operation more efficient, but are not required.

8. The air pressure setting must not exceed job site regulations/restrictions. The air pressure setting must not exceed 90 PSI when being used with workpieces that have a thickness of less than 1-3/4″.

9. Inspect the air connections for leaks.

Repair any leaks found.

WARNING! TO PREVENT SERIOUS INJURY

FROM ACCIDENTAL OPERATION:

Do not install a female quick coupler on the tool.

Such a coupler contains an air valve that will allow the air tool to retain pressure and operate accidentally after the air supply is disconnected.

10. If the tool will not be used at this time, turn off and detach the air supply, safely discharge any residual air pressure, and release the trigger to prevent accidental operation.

Note: Air flow, and therefore tool performance, can be hindered by undersized air supply components.

Note: Residual air pressure should not be present after the tool is disconnected from the air supply.

However, it is a good safety measure to attempt to discharge the tool in a safe fashion after disconnecting to ensure that the tool is disconnected and unpowered.

3. The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.


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Lubricated Tools Non-lubricated Tools

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Page 9

Lubricated Tools


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Operating Instructions

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

Inspect tool before use, looking for damaged, loose, and missing parts.

If any problems are found, do not use tool until repaired.

Workpiece and Work Area Set Up

1. Designate a work area that is clean and well-lit.

The work area must not allow access by children or pets to prevent distraction and injury.

2. Route the air hose along a safe route to reach the work area without creating a tripping hazard or exposing the air hose to possible damage.

The air hose must be long enough to reach the work area with enough extra length to allow free movement while working.

3. Secure loose workpieces using a vise or clamps

(not included) to prevent movement while working.

4. There must not be hazardous objects

(such as utility lines or foreign objects) nearby that will present a hazard while working.

Single Sequential Safety Trip Mechanism Definition

The single sequential safety trip mechanism is designed to prevent inadvertent firing. Use the Mode

Switch near the Trigger to change modes. The tool should only fire if the Safety Nosepiece is pressed against the workpiece prior to pulling the Trigger. It should only fire again if the trigger is released and squeezed again. The Tool should not fire if the Safety Nosepiece is not pressed against an object.

Single Sequential Safety Trip Mechanism Testing Procedure

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:

Point the tool at a piece of scrap wood when testing.

1. Disconnect the tool from the air supply.

2. Load the magazine with fasteners.

3. Check that the Trigger and the Safety Nosepiece move freely, without sticking.

4. Connect the air supply to the tool and set within the Operating Air Pressure indicated on the Specification chart.

6. Hold the tool away, or off of the workpiece.

The Safety Nosepiece should return to its original position. Squeeze the Trigger.

The tool must not cycle (fire).

If it cycles (fires), stop immediately and take the tool to a qualified service technician.

5. Test the tool by pressing the Safety Nosepiece against the workpiece without pulling the Trigger.


If it cycles (fires), stop immediately and have it repaired by a qualified service technician.

7. Press the Safety Nosepiece against the workpiece and squeeze the Trigger.

The tool must cycle (fire) only once.

Release the trigger, slide the nailer to a fresh piece of wood, and squeeze it again.

The tool must cycle (fire) again only once.

With the Trigger held, carefully lift the tool and press it against the workpiece again.


If it fails to act in the manner explained in bold, have it repaired by a qualified service technician.

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Contact Safety Trip (Bump Fire) Mechanism Definition

The contact safety trip (or bump fire) mechanism allows rapid fire. Use the Mode Switch near the Trigger to change modes. The tool should only fire if the Safety Nosepiece is pressed against the workpiece and the trigger is pulled. It should fire again if the trigger is released and pulled OR if the safety is lifted and pressed against the workpiece again. The Tool should not fire if the Safety Nosepiece is not pressed against an object. Contact safety trip / bump fire should only be enabled and used by skilled operators who are aware of the hazards and use proper, safe work practices.

Contact Safety Trip (Bump Fire) Mechanism Testing Procedure

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:

Point the tool at a piece of scrap wood when testing.

1. Disconnect the tool from the air supply.

2. Load the magazine with fasteners.

3. Check that the Trigger and the Safety Nosepiece move freely, without sticking.

6. Hold the tool away, or off of the workpiece.

The Safety Nosepiece should return to its original position. Squeeze the Trigger.


If it cycles (fires), stop immediately and take the tool to a qualified service technician.

4. Connect the air supply to the tool and set within the Operating Air Pressure indicated on the Specification chart.

5. Test the tool by pressing the Safety Nosepiece against the workpiece without pulling the Trigger.


If it cycles (fires), stop immediately and have it repaired by a qualified service technician.

7. Press the Safety Nosepiece against the workpiece and squeeze the Trigger.

The tool must cycle (fire) only once.

Release the trigger, slide the nailer to a fresh piece of wood, and squeeze it again.


With the Trigger depressed, carefully lift the tool and press it against the workpiece again in a new location.


If it fails to act in the manner explained in bold, have it repaired by a qualified service technician.

Safety Trip Mode Switch

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL FIRING:

• Release trigger and point tool in a safe direction before changing safety trip mode.

• ONLY operate the tool with the switch fully in one of the safety trip mode positions.

1. Turn the switch to the (single nail) setting to enable Single Sequential operation.

This operation is safer and should be used whenever practical.

2. Turn the switch to the (multiple nail) setting to enable contact trip / bump fire operation.

This operation is more dangerous.

Only a skilled operator who is aware of the hazards and uses proper, safe work practices should use contact trip / bump fire operation.

Single Sequential

Position

Contact Trip

Position

Figure C: Trigger Mode Switch Positions


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Loading the Tool

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION, BEFORE LOADING:

• Wear ANSI-approved safety goggles with side shields.

Other people in the work area must also wear ANSI-approved impact safety goggles with side shields.

• Release the trigger.

• Detach the air supply.

• Attempt to fire the Tool into a piece of scrap wood to ensure that it is disconnected and is incapable of firing any fasteners.

Note: Make sure nail type and angle are correct for nailer.

1. Pull Pusher all the way to the rear of Magazine until it is held in place by the Pusher Lock.

2. Orient a strip of nails with the tips down and drop the strip of nails into Magazine.

3. Pull Pusher back, release Pusher Lock, and allow Pusher to slide forward against strip of nails.

General Operating Instructions

1. Before each use, test the tool as directed in the prior section.

2. If an automatic oiler is not used, add a few drops of Pneumatic Tool Oil to the airline connection before use. Add a few drops more after each hour of continual use.

WARNING! TO PREVENT

SERIOUS INJURY: Keep second hand away from tool discharge area, especially if holding workpiece.

Tool applies extreme force to fastener, and fasteners may deflect or fire in an unexpected direction.

CAUTION! TO PREVENT INJURY: Do not hold tool near body while firing. Tool recoil can cause injury.

3. Position tool at desired fastener location and depress the Safety Nosepiece fully against the workpiece.

Squeeze the trigger to fire a fastener.

Note: PREVENT DOUBLE FIRING, allow the tool to recoil from the workpiece, do not force it against the workpiece.

4. Firing multiple fasteners using contact trip (bump fire) mode:

Squeeze and hold trigger, then push safety nosepiece to fire one fastener, move and push safety nosepiece again to fire additional fasteners.

5. To change firing depth: Disconnect Air Supply

and keep Safety Nosepiece pointed away.

Loosen the Depth Adjustment Screw, adjust the Safety Nosepiece, and retighten the

Screw to control the firing depth. See Figure D.

Depth

Adjustment

Screw

Safety

Nosepiece

Figure D: Depth Adjustment

6. If, at the maximum depth setting, the tool requires more force to accomplish the task, verify that the tool receives sufficient, unobstructed airflow (CFM) and increase the pressure (PSI) output of the regulator up to the maximum air pressure rating of this tool.

CAUTION! TO PREVENT INJURY FROM TOOL OR

ACCESSORY FAILURE:

Do not exceed the tool’s

maximum air pressure rating.

If the tool still does not have sufficient force at maximum pressure and sufficient airflow, then a larger tool may be required.

Note: The nailer will stop firing when it is empty.

7. After use, to prevent accidents: a. Release the trigger.

b. Detach the air supply.

c. Change the Mode Switch to setting.

d. Attempt to fire the Tool into a piece of scrap wood to ensure that it is disconnected and is incapable of firing any fasteners.

e. Release the trigger again.

f. Clean external surfaces with clean, dry cloth.

g. Store indoors out of children’s reach.

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User-Maintenance Instructions

Procedures not specifically explained in this manual must be performed only by a qualified technician.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION,

BEFORE ANY MAINTENANCE OR REPAIRS ARE DONE (including clearing jams):






• Empty the magazine and leave it open during service.

The Magazine is spring-loaded and may cause parts or a fastener to fly out of the Tool.

TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:

Do not use damaged equipment.

If abnormal noise, vibration, or leaking air is detected, have the problem corrected before further use.

TO PREVENT EXPLOSION: Lubricate only with specified lubricants. Lubricate the air inlet using only pneumatic tool oil. Lubricate the internal mechanism using only white lithium grease.

Other lubricants may damage the mechanism and may be highly flammable, causing an explosion.

Note: These procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the air-operated tool.

1. BEFORE EACH USE, inspect the general condition of the tool. Check for:

• proper safety trip mechanism operation,

• free safety nosepiece and trigger movement,

• loose hardware or housing,

• misalignment or binding of moving parts,

• cracked or broken parts, and

• any other condition that may affect its safe operation.

2. Daily - Air Supply Maintenance:

Every day, perform maintenance on the air supply according to the component manufacturers' instructions. Maintain the lubricator's oil level.

Drain the moisture filter regularly.

Performing routine maintenance on the air supply will allow the tool to operate more safely and will also reduce wear on the tool.


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Clearing Jams

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION,

BEFORE ANY MAINTENANCE OR REPAIRS ARE DONE (including clearing jams):






• Empty the magazine and leave it open during service.

The Magazine is spring-loaded and may cause parts or a fastener to fly out of the Tool.

1. If a fastener is jammed in the discharge area, remove it with pliers.

2. If a fastener is jammed in the magazine, pull the

Pusher all the way back to the engaged position.

Use a screwdriver to release the jammed fastener by probing the openings in the magazine.

3. Pull out the jammed fastener and the remainder of the fastener strip from the magazine.

Dispose of the remaining fastener strip; it is likely bent or damaged and may cause repeated jamming or damage to the tool if reused.

4. If the jam cannot be cleared using the method above, have the tool serviced by a qualified technician.

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Page 15

Troubleshooting

Problem

Insufficient fastener depth.

Fasteners drive too deeply.

Tool cycles without firing fastener.

Possible Causes

1. Incorrect tool depth setting.

2. Not enough air pressure.

3. Incorrect lubrication or not enough lubrication.

4. Blocked air inlet screen

(if equipped).

5. Mechanism contaminated.

1. Incorrect tool depth setting.

2. Too much air pressure.

1. Jammed fastener.

2. Tool empty.

3. Incorrect fasteners used.

4. Magazine dirty or not lubricated properly.

5. Insufficient air flow.

Likely Solutions

1. Adjust depth setting, if available.

2. Check for loose connections and make sure that air supply is providing enough air pressure (PSI) to the tool’s air inlet. Do not exceed maximum air pressure.

3. Lubricate using air tool oil and grease according to directions.

4. Clean air inlet screen of buildup.

5. Have qualified technician clean and lubricate mechanism. Install in-line filter in air supply as stated in Initial Set Up: Air Supply.

1. Adjust depth setting, if available.

2. Reduce air supply pressure (PSI).

1. Clear jammed fastener according to

Clearing Jams instructions.

2. Reload with correct fasteners.

3. Empty, then reload with correct fasteners.

4. Clean and lubricate magazine and pusher.

Frequent jamming.

Severe air leakage.

(Slight air leakage is normal, especially on older tools.)

Incorrect nail type.

1. Cross-threaded housing components.

2. Loose housing.

3. Damaged valve or housing.

4. Dirty, worn or damaged valve.

5. Check for loose connections and make sure that air supply is providing enough air flow (CFM) and pressure (PSI) to the tool’s air inlet.

Do not exceed maximum air pressure.

Confirm nail collation type, diameter, angle, type, and length. Correct as needed.

1. Check for incorrect alignment and uneven gaps.

If cross-threaded, disassemble and replace damaged parts before use.

2. Tighten housing assembly. If housing cannot tighten properly, internal parts may be misaligned.

3. Replace damaged components.

4. Clean or replace valve assembly.

Follow all safety precautions whenever diagnosing or servicing the tool.

Disconnect air supply before service.


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PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM

IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR

MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS

QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE

ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY

STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND

LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY

ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS

THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

Record Product’s Serial Number Here:

Note: If product has no serial number, record month and year of purchase instead.

Note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.

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Page 17

Parts List and Diagram

69927 Parts List and Diagram

Part Description

1 Screw

2 Spring Washer

3 Bushing

4 Exhaust Cover

5 Seal

6 Screw

7 Spring Washer

8 Cylinder Cap

9 Gasket

10 Washer

11 Valve Seat

12 Spring

13 O-ring 57.5×2.6

14 O-ring 72.4×3.5

15 Valve

16 Screw

17 Cylinder Seal

18 Collar

19 O-ring 54.4×4

20 Piston Assembly

21 Cylinder

22 O-ring 67×3

23 O-ring 60.25×2.5

24 Restrictive Plate

25 O-ring 97.5×3.5

26 Bumper A

27 Bumper B

28 Body

29 O-ring 62.3×1.8

30 Nose


31 Spring Washer

32 Screw

33 Spring

34 Safety Bracket A

35 Screw

36 Bushing

37 Safety Nosepiece

38 Washer

39 Depth Adjustment Screw

40 Rubber Cover

40a Cover Clip

41 Spring Pin

42 Safe Guide

43 O-ring 18.4x2.4

44 O-ring 20.3x1.5

45 Valve Set

46 O-ring 9.5x1.9

47 O-ring 10.3x1.9

48 Trigger Valve Head

49 O-ring 12.8x1.9

50 Spring

51 O-ring 5.5x1.5

52 Trigger Valve Stem

53 O-ring 24.8x2

54 Trigger Valve Guide

55 Trigger Spring

55a Locking Washer Ø3

56 Trigger

57 Rotating Shaft Bushing

57a Steel Ball


57b Spring

58 Mode Switch

59 Rail

60 Washer

61 Nut

62 Washer

63 Coil Spring Assembly

64 Pin

65 Bushing

66 Screw

67 Block

68 Feeder Shoe

69 Screw

70 Magazine

71 Screw

72 Support

73 Nut

74 Lock

75 Torsion Spring

76 Bushing

77 Nut

78 Nut

79 Soft Grip Sleeve

80 Gasket

81 End Cap

82 Screw

83 Air Plug

Page 18

40a 40


REV 12e

Item 69927

69928

69928 Parts List and Diagram


1 Screw M5×20

2 Spring Washer Ø5

3 Bushing

4 Exhaust Cover

5 Seal

6 Screw M6×30

7 Spring Washer Ø6

8 Cylinder Cap

9 Gasket

10 Washer

11 Valve Seat

12 Spring

13 O-ring 57.5×2.6

14 O-ring 72.4×3.5

15 Valve

16 Screw M6×8

17 Cylinder Seal

18 Collar

19 O-ring 54.4×4

20 Piston Assembly

21 Cylinder

22 O-ring 67×3

23 O-ring 60.25×2.5

24 Restrictive Plate

25 O-ring 97.5×3.5

26 Bumper A

27 Bumper B

28 Body

29 O-ring 62.3×1.8

30 Nose


31 Spring Washer Ø8

32 Screw M8×25

33 Spring

34 Safety Bracket A

35 Screw M5×12

36 Bushing

37 Safety Nosepiece

38 Washer

39 Depth Adjustment Screw M5×10

40 Rubber Cover

40a Cover Clip

41 Spring Pin

42 Safe Guide

43 O-ring 18.4x2.4

44 O-ring 20.3x1.5

45 Valve Set

46 O-ring 9.5x1.9

47 O-ring 10.3x1.9

48 Trigger Valve Head

49 O-ring 12.8x1.9

50 Spring

51 O-ring 5.5x1.5

52 Trigger Valve Stem

53 O-ring 24.8x2

54 Trigger Valve Guide

55 Spring

55a Locking Washer Ø3

56 Trigger

57 Rotating Shaft Bushing

57a Steel Ball


57b Spring

58 Mode Switch

59 Rail

60 Washer Ø5

61 Nut M4

62 Spring Washer Ø5

63 Coil Spring Assembly

64 Pin

65 Bushing

66 Screw M4×8

67 Block

69 Feeder Shoe

70 Screw M5×14

71 Magazine

72 Screw M4×16

73 Support

74 Nut M5

75 Lock

76 Torsion Spring

77 Bushing

78 Nut M4

79 Nut M6

80 Soft Grip Sleeve

81 Gasket

82 End Cap

83 Screw M5×20

84 Air Plug

REV 12e

Item 69927

69928

40a 40


Page 19

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.

If our inspection verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

Central Pneumatic 69927 21° Angle Full Head Framing Air Nailer Specifications

Table of Contents

PSI

CFM

SCFM

NPT

NPS

Table A: Symbol Definitions

IMPORTANT SAFETY INSTRUCTIONS

INSTRUCTIONS PERTAINING TO A RISK OF FIRE,

ELECTRIC SHOCK, OR INJURY TO PERSONS

General

Work area

Personal safety

Tool use and care

Service

Air source

SAVE THESE INSTRUCTIONS.

Specific Safety Instructions

Vibration Precautions

SAVE THESE INSTRUCTIONS.

Functional Description

Specifications

Components and Controls

Initial Tool Set Up/Assembly

Air Supply

Lubricated Tools Non-lubricated Tools

Lubricated Tools

Operating Instructions

Workpiece and Work Area Set Up

Single Sequential Safety Trip Mechanism Definition

Single Sequential Safety Trip Mechanism Testing Procedure

Contact Safety Trip (Bump Fire) Mechanism Definition

Contact Safety Trip (Bump Fire) Mechanism Testing Procedure

Safety Trip Mode Switch

Loading the Tool

General Operating Instructions

User-Maintenance Instructions

Clearing Jams

Troubleshooting

PLEASE READ THE FOLLOWING CAREFULLY

Parts List and Diagram

69927 Parts List and Diagram

69928 Parts List and Diagram

Limited 90 Day Warranty

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Table of contents