Harbor Freight 91053 Users Manual 54 92147 85 Nailers

91054 to the manual cb8d1d29-fda5-4c61-81af-0dd10859ddbb

2015-01-25

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FRAMING NAILER
34 DEGREE & 28 DEGREE MAGAZINE ANGLES

Models 91053, 91054, 92147, & 92185
ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at: http://www.harborfreight.com

TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
Copyright© 2004 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.

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

Specifications
Item
Magazine Angle
Nail Size
Nail Capacity
(Quantity)
Operating PSI
SCFM
Required
Trigger Type
Accessories

Construction

Description
Models 91054 & 92147: 34 Degrees
Models 91053 & 92185: 28
All Models:
.113” to .131” Shank / 2” to 3-1/2” Long Clipped Head / 8 to 10 Gauge
All Models:
90 Per Load
All Models:
75 PSI to 125 PSI *
Models 91053 & 91054: 8 to 10 SCFM @ 90 PSI
Model 92147: 12 to 14 SCFM @ 100 PSI
Model 92185: 13 to 15 SCFM @ 100 PSI
All Models:
Full Sequential Safety Trip
All Models:
Carrying Case (Qty: 1) / Nails (Qty: 450).
Hex Wrenches (Qty: 4) / Air Tool Oil (Qty. 1).
Models 91053 & 91054: Steel and Steel Alloy.
Models 92147 & 92185: Magnesium / Steel.

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

Save This Manual
You will need this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.

Safety Warnings and Precautions
WARNING: When using tool, basic safety precautions should always be
followed to reduce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1.

Keep work area clean. Cluttered areas invite injuries.

Observe work area conditions. Do not use machines or power tools in damp or
wet locations. Do not expose to rain. Keep work area well lit. Do not use electrically powered tools in the presence of flammable gases or liquids.

Keep children away. Children must never be allowed in the work area. Do not
let them handle machines, tools, extension cords, or air hoses.

Store idle equipment. When not in use, tools must be stored in a dry location to
inhibit rust. Always lock up tools and keep out of reach of children.
REV 11/06

Skus

91053, 91054
92147, & 92185

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

Page 2

Use the right tool for the job. Do not attempt to force a small tool or attachment
to do the work of a larger industrial tool. There are certain applications for which
this tool was designed. It will do the job better and more safely at the rate for
which it was intended. Do not modify this tool and do not use this tool for a purpose for which it was not intended.

Dress properly. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically nonconductive clothes and nonskid footwear
are recommended when working. Wear restrictive hair covering to contain long
hair.

Do not overreach. Keep proper footing and balance at all times. Do not reach
over or across running machines or air hoses.

Use eye and ear protection. Always wear ANSI approved impact safety
goggles and appropriate hearing protection. Wear a full face shield if you
are producing metal filings or wood chips. Wear an ANSI approved dust
mask or respirator when working around metal, wood, and chemical dusts
and mists. Other people in the work area must also wear ANSI approved
impact safety goggles.

Maintain tools with care. Keep tools clean for better and safer performance.
Follow instructions for lubricating and changing accessories. Inspect tool cords
and air hoses periodically and, if damaged, have them repaired by an authorized
technician. The handle must be kept clean, dry, and free from oil and grease at
all times. Do not operate a tool if any portion of the tool’s operating controls are
inoperable, disconnected, altered or not working properly.

10.

Disconnect Air Hose and release any built-up air pressure. Never service the
Nailer, clear jams, or disassemble with the air hose attached. Always release any
built-up air even after disconnecting hose. Disconnect the Nailer when not in use.

11.

Remove adjusting keys and wrenches. Check that keys and adjusting
wrenches are removed from the tool or machine work surface before attaching to
an air source.

12.

Avoid unintentional starting. Be sure the trigger is in the Off position when not
in use and before plugging in. Do not carry any tool with your finger on the trigger, whether it is attached to an air source or not. Do not point the tool towards
yourself or anyone whether it contains fasteners or not.

13.

Stay alert. Watch what you are doing, use common sense. Do not operate any
tool when you are tired.

14.

Check for damaged parts. Before using any tool, any part that appears damaged should be carefully checked to determine that it will operate properly and

Skus

91053, 91054
92147, & 92185

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

Page 3

perform its intended function. Check for alignment and binding of moving parts;
any broken parts or mounting fixtures; and any other condition that may affect
proper operation. Any part that is damaged should be properly repaired or replaced by a qualified technician. Do not use the tool if the trigger does not operate properly.
15.

Guard against electric shock. Prevent body contact with grounded surfaces
such as pipes, radiators, ranges, and refrigerator enclosures.

16.

Replacement parts and accessories. This product is to be repaired and serviced only by a qualified technician. When this product is serviced, only identical
replacement parts should be used. Use of any other parts will void the warranty.
Only use accessories intended for use with this tool. Approved accessories are
available from Harbor Freight Tools.

17.

Do not operate tool if under the influence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgement or reflexes
are impaired while taking drugs. If there is any doubt, do not operate the tool.

18.

Use proper size and type extension cord. If an extension cord is required, it
must be of the proper size and type to supply the correct current to the compressor without heating up. Otherwise, the extension cord could melt and catch fire,
or cause electrical damage to the tool. Check your air compressor’s manual for
the appropriate size cord. It is also possible that the use of an extension cord
may cause your circuit breaker to trip or your panel fuse to break. If this happens,
either use the compressor without an extension cord or find a larger amperage
circuit to use.

19.

Maintenance. The maintenance outlined in the maintenance section should be
performed regularly. For your safety, this product should be serviced or repaired
regularly only by a qualified technician.

20.

Compressed air only. Never use combustible gas as a power source.

21.

Do not load nails with the trigger or safety depressed. Unintentional
firing may occur. Do not load nails when the air hose is connected to
the tool. Always assume the tool contains fasteners.

22.

Disconnect air supply before loading the Nailer. Before reloading (or making
any adjustments to) the Nailer, make sure the compressed air is disconnected.

23.

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 an angle. Fasteners can ricochet causing personal injury. Never fire the Nailer into the air, or point it toward yourself or another

Skus

91053, 91054
92147, & 92185

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

Page 4

person. Always wear ANSI approved safety goggles during use, maintenance,
and reloading.
24.

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

25.

Take caution, as some woods contain preservatives such as copper chromium arsenate (CCA) which can be toxic. When working with these materials
extra care should be taken to avoid inhalation and minimize skin contact.

26.

WARNING: Some dust created by power sanding, sawing, grinding, drilling,
and other construction activities contain 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 and other masonry products
* Arsenic and chromium from chemically treated lumber.
(California Health & Safety Code § 25249.5, et seq.)

26.

Stay within air pressure capacity. Never operate the Nailer above 125 PSI.

27.

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

28.

Transport Nailer safely. Always disconnect air supply when moving the tool in
the workplace. Carry the tool by the handle to avoid contact with the trigger.

29.

Avoid working alone. If an accident happens, an assistant can bring help.

Note: Performance of the compressor (if powered by line voltage) may vary depending
on variations in local line voltage. Extension cord usage may also affect the tool
performance.
Warning: The warnings, cautions, and instructions discussed in this instruction
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.

Unpacking
When unpacking, check to make sure all parts shown in the Parts List on page 12
are included. If any parts are missing or broken, please call Harbor Freight Tools at the
number on the cover of this manual as soon as possible.
REV 11/06
Skus

91053, 91054
92147, & 92185

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

Page 5

Operation
For best service, you should incorporate an oiler, regulator, and inline filter, as
shown in the diagram below. Hoses, couplers, oilers, regulators, and filters are all available at Harbor Freight Tools.

TO
ROOFING
NAILER

To connect this tool, we recommend you use the included quick connector.
Note: If you are not using an automatic oiler system, before operation, add a few
drops of Pneumatic Tool Oil to the airline connection. Add a few drops more after
each hour of continual use.

Set the air pressure on your compressor from 75-125 PSI. Do not exceed the
maximum air pressure.

Check the air connection for leaks.

Note: The amount of air pressure effects how deep the nails/staples will be
driven. It is suggested that you experiment on scrap material.
4.

Check the air connection for leaks and disconnect the Nailer/Stapler.

Testing the Full Sequential Safety Trip Mechanism
Warning: Even though the nailer should be empty during this procedure,
ALWAYS point the nailer at a piece of scrap wood when testing.
1.

Make sure the tool is disconnected from the power supply.

Completely empty the Magazine (74) of nails.

The Nailer should not fire if the Lower Safety (32) is not depressed against the
workpiece.
REV 11/06

Skus

91053, 91054
92147, & 92185

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

Page 6

Make sure the Trigger (48) and Lower Safety (32) move freely, without sticking see the illustration below.

Connect the air supply to the tool at the Quick Connector (87). Set the regulator at
the recommended 75 to 125 PSI.

Test the tool by depressing the Lower Safety (32) against the workpiece without
pulling the Trigger (48). The Tool must not cycle (fire). If it cycles (fires), stop
immediately and have it repaired by a qualified service technician.

Hold the tool away or off of the workpiece. The Lower Safety (32) of the tool
should return to its original position. Squeeze the Trigger (48). The tool should
not cycle (fire). If the tool fires, stop immediately and have it repaired by a
qualified service technician.

Depress the Lower Safety (32) against the workpiece and squeeze the Trigger
(48). The tool must cycle (fire) only once. Release the Trigger and squeeze it
again. The tool must not cycle (fire). With the Trigger held, carefully lift the
nailer and press it against the workpiece again. The tool must not cycle (fire).
If it fails to perform in the manner explained in bold, have it repaired by a qualified
service technician.

QUICK CONNECTOR (87)

TRIGGER (48)

LOWER SAFETY (32)

TRIGGER (48)

LOWER SAFETY (32)
REV 11/06
Skus

91053, 91054
92147, & 92185

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

Page 7

Loading Nails
ALWAYS WEAR ANSI APPROVED IMPACT SAFETY GOGGLES WHEN
RELOADING OR DOING ANY OTHER MAINTENANCE ON THIS TOOL.
Other people in the work area must also wear ANSI approved impact safety
goggles.
Warning! Make sure the Nailer is not attached to the air hose whenever loading the
tool.
1.

Slide the Tab (64) back and the Latch (78) will hold it in place.

Holding the nailer with the nose pointing slightly down, load a stick of nails into the
top slot.

While holding the Tab back, carefully press the Latch. BE CAREFUL. When you
press the Latch (78), the Tab (64) will spring forward with force. Slowly and cautiously
allow the tab to slide forward.

NAILS (91)

MAGAZINE
(74)

Skus

91053, 91054
92147, & 92185

TAB (64)
(PULLED
BACK)

LATCH
(78)

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

Page 8

Operating the Nailer
1.

Attach the Nailer to the air supply at the Quick Connector (87). Start your compressor, and check the pressure making sure it is set at the recommended 75-125
PSI and not to go over the maximum PSI.

Rotate the Exhaust Cover (3) so that the exhaust air blast will be directed away
from the operator.

To fire, place the nose of the Nailer on the workpiece. The Nailer should not fire if
the nose is not depressed. Once depressed, gently and briefly squeeze the
Trigger (48) once. Do not fire repeatedly. Nails could bounce off of one another, damaging the workpiece or causing PERSONAL INJURY.

Do not press the Lower Safety (32) of the Nailer against the work surface with
excessive force. Allow the tool to do the work. Always allow the tool to recoil off
the workpiece.

Caution: While working, dirt and sawdust may build up on the Lower Safety (32)
of the Nailer. This can prevent normal operation. Remove buildup using compressed air.

When finished using the Nailer, always disconnect the tool from its compressed
air supply. Empty the Magazine (74) completely of nails. Attempt to fire the
Nailer into a piece of scrap wood to ensure it is disconnected and is incapable of
firing any nails.

Make sure to store the Nailer in its Carrying Case in a clean, dry, safe location
out of reach of children.
EXHAUST COVER (3)

QUICK CONNECTOR (87)
TRIGGER (48)

LOWER SAFETY (32)
WORK SURFACE
REV 11/06
Skus

91053, 91054
92147, & 92185

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

Page 9

Anytime any maintenance or repairs are done (including clearing jams),
FIRST:
1.
2.
3.

Disconnect the Nailer from the air hose.
Empty the Magazine (74) completely.
Attempt to fire the Nailer into a piece of scrap wood to ensure that it is disconnected and is incapable of firing any nails.

Clearing Jams
1.

Occasionally a Nail may become jammed in the firing mechanism of the Nailer,
making the tool inoperative.

To remove a jammed nail, disconnect the Nailer from its compressed air supply.
Slide the Tab (64) back and empty the Magazine (74) completely of Nails. Attempt to fire the Nailer into a piece of scrap wood to ensure it is disconnected
and is incapable of firing any nails.

Use a pair of needle nose pliers (not included) to remove the jammed nail (usually from the Upper Safety (28) and/or Lower Safety (32) areas). While holding
the Tab back, carefully press the Latch. BE CAREFUL. When you press the
Latch (78), the Tab (64) will spring forward with force. Slowly and cautiously allow
the tab to slide forward.

Reconnect the air supply hose to the tool.

Press the Lower Safety (32) of the Nailer against a piece of scrap wood.

Test fire the Nailer several times, checking for proper operation.

If the Nailer is properly firing, you can continue to use the Nailer. Disconnect the
air supply to the Nailer, and reload the Nails. Then, reconnect the air supply and
continue working.

When finished working, Disconnect the air supply. Remove the Nails. Then,
store the Nailer and nails in a location out of children’s reach.

Skus

91053, 91054
92147, & 92185

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

Page 10

Anytime any maintenance or repairs are done, FIRST:
1.
2.
3.

Inspection, Maintenance, and Cleaning
1.

Inspect the Nailer frequently and lubricate periodically with Pneumatic tool oil,
then wipe dry. Do not use detergent oil or additives as these lubricants will cause
accelerated wear to the internal seals.

Inspect the air supply filter, if present, before each use and clean or replace as
necessary. Dirt and water in the air supply filter are major causes of pneumatic
tool wear. Use a filter/oiler for better performance and longer tool life. The filter
must have adequate flow capacity for the specific application.

Clean the Nailer with a clean, wet cloth. Then dry.

Store the unit in a clean and dry location out of children’s reach.

All maintenance, service, or repairs not listed in this manual are only to be
attempted by a qualified technician.

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.

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

Skus

91053, 91054
92147, & 92185

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

Page 11

Parts List
Part

Description

Part

Description

Part

Description

Part

Description

Set Screw

O-Ring

Trigger

Internal Hex Bolt

Shim

Gasket

O-Ring

Suppor t

Exhaust Cover

Body

Trigger Plate

Bushing

Internal Hex Bolt

Safety A

Spring Pin

Magazine

Shim

Safety Spring

O-Ring

Set Screw

Spring Washer

Lock Nut

Trigger Valve Body

Spring Pin

Flat Washer

Internal Hex Bolt

Deflector

Safety B

O-Ring

Latch

Packing

Safety Sleeve

O-Ring

Latch Bushing

Gasket

Shelter

O-Ring

Latch Spring

Inner Lining

Internal Hex Bolt

Trigger Valve Piston

Nail Guide

Spring

Outer Bumper

O-Ring

Lock Nut

O-Ring

Inner Bumper

Compression Spring

Tail Hanger

O-Ring

Spring Pin

O-Ring

Internal Hex Bolt

O-Ring

Driver Guide Bushing

Trigger Valve Stem

O-Ring

Head Valve Piston

O-Ring

Inner Trigger Valve Seat

End Cap

Seal

Driver Guide

Tab

Quick Connector

O-Ring

Spring Washer

Plug

Driver Unit

Internal Hex Bolt

Roller

Spring Washer

Cylinder

Safety Guide

Pusher Spring

Flat Washer

O-Ring

Spring Pin

Semicycle Soc.Hd.Screw

Spring

Seal

Flat Washer

Lining Ring

Spring Pin

Roller Seat

Internal Hex Bolt

Assembly Diagram

Skus

91053, 91054
92147, & 92185

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

Page 12

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Harbor Freight 91053 Users Manual 54 92147 85 Nailers

91054 to the manual cb8d1d29-fda5-4c61-81af-0dd10859ddbb

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