Central Pneumatic 46309 User manual

AIR BRAD NAILER

ASSEMBLY and OPERATING

INSTRUCTIONS

Model 46309

Distributed exclusively by

Harbor Freight Tools®.

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www.harborfreight.com

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 and replacement parts, please call 1-800-444-3353

Manual Revised 11h

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

SKU 46309 Page 2For technical questions, please call 1-800-444-3353.

Brad Size .039-.042” Shank (18 Gauge), 3/8” to 2” long

Magazine Capacity 100

Operating PSI 55-95 PSI

Air Inlet Size 1/4” NPT Male

Safety Feature Full Sequential Safety Trip Mechanism

Dimensions 9-3/4” L x 8-5/8” H x 2-1/4” W

Accessories Two Hex Wrenches, Lubricating Oil

Specications

Fasteners available from Harbor Freight Tools: SKU 33205-3/4”, SKU 33206-1”,

SKU 33207-1-3/16”, 91221-2”.

Save This Manual

You will need the manual for the safety warnings and precautions, assembly instruc-

tions, operating and maintenance procedures, parts list and diagram. Keep your invoice with

this manual. Write the invoice number on the inside of the front cover. Keep the 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.

2. 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 ammable gases or liquids.

3. Keep children away. Children must never be allowed in the work area. Do not let them

handle machines, tools, extension cords, or air hoses.

4. 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.

5. 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.

6. 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.

7. Do not overreach. Keep proper footing and balance at all times. Do not reach over or

across running machines or air hoses. REV 08a

SKU 46309 Page 3For technical questions, please call 1-800-444-3353.

8. 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 lings 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.

9. 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 nger 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 perform its

intended function. Check for alignment and binding of moving parts; any broken parts

or mounting xtures; and any other condition that may affect proper operation. Any part

that is damaged should be properly repaired or replaced by a qualied 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 qualied 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 inuence of alcohol or drugs. Read warning labels

if taking prescription medicine to determine if your judgement or reexes 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 re, or cause electrical

damage to the tool. Check your air compressor’s manual for the appropriate size cord.

SKU 46309 Page 4For technical questions, please call 1-800-444-3353.

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 nd 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 qualied 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 ring

may occur. Do not load nails when the air hose is connected to the tool.

Always assume that the tool contains fasteners.

22. Disconnect air supply before loading Nailer. Before reloading (or making any

adjustments to) the Nailer make sure that the compressed air is disconnected.

23. Fire fasteners into an appropriate work surface only. Do not attempt to re 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. Never re

the Nailer into the air, or point it toward yourself or another person. Always wear ANSI

approved safety goggles during use, maintenance, and reloading.

24. Do not re fasteners too close to the edge of a workpiece. They may split the

workpiece and y free, causing personal injury.

25. Take caution as some woods contain preservatives such as copper chromium

arsenate (CCA) which can be toxic. When stapling or nailing these materials extra

care should be taken to avoid inhalation and minimize skin contact.

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 or 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 95 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 and avoid contact with the trigger.

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 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.

SKU 46309 Page 5For technical questions, please call 1-800-444-3353.

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.

2. Completely empty the magazine of nails.

3. The Nailer should not re if the nose is not depressed against the workpiece.

4. Check that the Trigger (29) and the Safety (56) move freely, without sticking - see Figure

1, next page.

5. Connect the air supply to the tool at the Air Inlet (38) set at the recommended 55-95

PSI, and not to go over the maximum 95 PSI.

6. Test the tool by depressing the Safety (56) against the workpiece without pulling the

Trigger (29). The tool must not cycle (re). If it cycles (res), stop immediately and

take the tool to an authorized service technician.

7. Hold the tool away or off of the workpiece. The Safety (56) of the tool should return to

its original position. Squeeze the Trigger (29). The tool should not cycle (re). If it

cycles (res), stop immediately and take the tool to an authorized service technician.

8. Depress the Safety (56) against the workpiece and squeeze the Trigger (29). The

tool must cycle (re) once only. Release the trigger and squeeze it again. The tool

must not cycle (re). With the Trigger held, carefully lift the nailer and press it against

the workpiece again. The tool must not cycle (re). If it fails to act in the manner

described in bold, have it repaired by a qualied service technician.

Unpacking

When unpacking, check to make sure the parts listed on page 8 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.

NOTE: Although a spare Drive Pin (46), Step Pin (45), Piston Head (44), O-ring (43), and

assorted O-rings are included, these parts are for installation by a qualied technician only.

Operation

For best service, you should incorporate an oiler, regulator, and inline lter, as shown in

the diagram below. Hoses, couplers, oilers, regulators, and lters are all available at Harbor

Freight Tools.

Note: To connect this tool, we recommend a quick coupler/adapter (not included). Coupler/

adapters are available at Harbor Freight Tools. If an automatic oiler is not used, put

3-5 drops of pneumatic tool oil in the Air Inlet (38) before each use.

Nailer

REV 04/05

SKU 46309 Page 6For technical questions, please call 1-800-444-3353.

Operating the Nailer

1. Attach the Nailer to the air supply at the Air Inlet (38). Start your compressor and check

the pressure making sure it is set at the recommended 55-95 PSI and not to go over the

maximum 95 PSI.

2. To re, place the nose of the Nailer on the workpiece. The Nailer should not re if the

nose is not depressed. Once depressed, gently and briey squeeze the Trigger (29)

once. Do not re repeatedly. Nails could bounce off of one another, damaging the

work piece or causing PERSONAL INJURY.

Operation (continued)

Loading Brad 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. Press the Retaining Spring (58) up and slide the Magazine (60) back.

2. Holding the nailer with the nose pointing slightly down, insert the brad nails into the

Magazine (60), letting the pointed end ride on the rail of the Magazine (60).

3. After the Nails reach the nose of the tool, close the Magazine (60) making sure the

Retaining Spring (58) clicks shut. See Figure 1.

Air Inlet (38)

Magazine (60)

Safety

Trigger (29)

Retaining Spring (58)

FIGURE 1

SKU 46309 Page 7For technical questions, please call 1-800-444-3353.

Anytime any maintenance or repairs are done (including clearing jams), FIRST:

1. Disconnect the Nailer from the air hose.

2. Empty the Magazine (60) completely.

3. Attempt to re the Nailer into a piece of scrap wood to ensure that it is disconnected

and is incapable of ring any brads.

4. Always leave the Magazine (60) open during maintenance. The Magazine is

spring-loaded and may cause parts or a nail to y out of the Nailer.

Clearing Jams

1. Disconnect tool from air hose, empty the

Magazine (60) of nails, release any built-up

air pressure, and leave the magazine open, as

explained above.

2. While doing this step and the next, hold the Nailer

pointed away from you and any other people or

fragile objects. Pull the Quick Release Lever

(49) forward to the position shown in Figure 2.

Remove the Driver Guide Cover (51).

3. Remove the jammed nail. Pliers may be

necessary to remove a stuck nail.

4. Inspect the Drive Pin (46) for bends or breakage

- see location in Figure 3. If it is damaged, do

not use the tool until it is repaired by a qualied

technician.

5. Lightly oil the Drive Pin (46). Replace the Driver

Guide Cover (51) and latch the Quick Release

Spring (50) up against both hooks, making sure

it is securely in place and the Quick Release

Lever (49) is pressed down - see Figure 4.

6. Reload the Nailer.

7. Reconnect the Nailer to the air hose.

8. Press the Safety (56) of the Nailer against an

appropriate piece of scrap wood.

9. Test re the Nailer several times, checking for

proper operation.

10. Disconnect the Nailer, remove the nails and store

it in a location out of children’s reach.

FIGURE 2

Driver Guide

Cover (51)

Quick Release

Lever (49)

FIGURE 3

Drive Pin (46) (inside housing)

FIGURE 4

Driver Guide

Cover (51)

hooks

-part of

Driver Guide (52)

Quick Release

Spring (50)

REV 04/05

SKU 46309 Page 8For technical questions, please call 1-800-444-3353.

Anytime any maintenance or repairs are done, FIRST:

1. Disconnect the Nailer from the air hose.

2. Empty the Magazine (60) completely.

3. Attempt to re the Nailer into a piece of scrap wood to ensure that it is disconnected

and is incapable of ring any brads.

4. Always leave the Magazine (60) open during maintenance. The Magazine is

spring-loaded and may cause parts or a nail to y out of the Nailer.

Troubleshooting Guide

Stop using the Brad Nailer immediately if any of the following problems occur.

Repairs and part replacements must be done only by a qualied technician.

All procedures in bold on this chart are to be attempted only be a qualied technician.

Problem Likely Cause Solution

Air leaking at Trigger area. O-Rings in Trigger Valve housing are

damaged.

Replace O-Rings and check contact

trip operation.

Air leaking between Housing and

Nose.

1. Loose screws in Housing.

2. Damaged O-Rings/Bumper (17).

1. Tighten screws.

2. Replace O-Rings or Bumper (17).

Air leaking at Trigger Valve Stem. O-Rings or Seals are damaged. Replace O-Rings or Seals.

Air leaking between Housing and

Cap.

1. Loose screws.

2. Damaged Gasket (7).

1. Tighten Screws.

2. Replace Gasket (7).

Runs slowly or has power loss.

1. Insufcient oil.

2. Broken Spring in Cylinder Cap.

3. Exhaust (1) is blocked.

1. Lubricate as instructed.

2. Replace Compression Spring (6).

3. Replace damaged parts.

Nailer skips a nail.

1. Worn Bumper (17) or damaged

Pusher Spring.

2. Dirt in Driver Guide (52).

3. Inadequate airow to Nailer.

4. Worn or dry O-Ring on Piston.

5. Damaged O-Ring on Trigger

Valve.

6. Cap Gasket (7) leaking.

1. Replace Bumper (17) or Pusher

Spring.

2. Clean Channels in Driver Guide (52).

3. Check hose and compressor ttings.

4. Replace or lubricate O-Rings.

5. Replace O-Rings.

6. Replace Gasket (7).

Nails are jammed.

1. Guide on driver is worn.

2. Nails are wrong size or damaged.

3. Magazine or Nose screws are

loose.

4. Drive Pin (46) is damaged.

1. Replace Guide.

2. Use correct, undamaged nails.

3. Tighten screws.

4. Replace Drive Pin (46).

Nailer will not drive down tight.

1. Rounded Drive Pin (46) slipping

off nail crown.

2. Lack of air pressure.

3. Slow cycling and loss of power.

1. Replace Drive Pin (46).

2. Supply correct pressure (55-95 PSI).

3. Check Compression Spring (6) for

broken coils or reduced length.

Make sure Exhaust (1) is clear.

Blade driving nail too deeply. Worn Bumper (17) and/or Piston

Spacer.

Replace either or both parts.

All procedures in bold on this chart are to be attempted only be a qualied technician.

SKU 46309 Page 9For technical questions, please call 1-800-444-3353.

NOTE: Some parts are listed and shown for illustration purposes only and are not available

individually as replacement parts.

PLEASE READ THE FOLLOWING CAREFULLY

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

TROUBLESHOOTING GUIDE IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE

MANUFACTURER NOR 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.

Parts List

Part Description

1 Exhaust

2 Screw

3 Washer

4Cylinder Cap Assembly

5Seal Air

6 Compression Spring

7 Gasket

8 O-ring

9 O-ring

10 Head Valve Piston

11 O-Ring

12 Stopper

13 Collar

14 O-ring

15 O-ring

16 Cylinder

17 Bumper

18 Body

19 Nozzle

20 Cover

21 Trigger Axle Head

22 Spring

23 O-Ring

Part Description

24 Trigger Valve Stem

25 O-Ring

26 Valve Guide

27 Releasing Blade

28 E-ring

29 Trigger

30 Spring Pin

31 Step Pin

32 Frame

33 Spring Pin

34 Stopper

35 Filter Net

36 O-ring

37 Bottom Cap

38 Air Inlet

39 Screw

40 Washer

41 Pin

42 Spring

43 O-ring

44 Piston Head

45 Step Pin

46 Drive Pin

Part Description

47 Screw

48 Cover II

49 Quick Release Lever

50 Spring

51 Driver Guide Cover

52 Driver Guide

53 Screw

54 Spring Pin

55 Spring

56 Safety

57 Screw

58 Retaining Spring

59 Support

60 Magazine

61 Steel Bar

62 Magazine Side Cover

63 Cover

64 Spring

65 Spring Pin

66 Pusher Guide

67 Pusher

68 Screw

69 Hex Nut

REV 04/05

SKU 46309 Page 10For technical questions, please call 1-800-444-3353.

Assembly Drawing

Maintenance

Warning! Always disconnect the tool from the air compressor and then empty the magazine of nails before attempting to inspect

or perform maintenance to the Nailer.

1. Inspect all of the nuts and screws and make sure they are securely fastened.

2. Periodically lubricate the driving mechanism and magazine with a light oil. Wipe down with a clean cloth. Never use gasoline

or ammable solvents to clean the tool.

3. Inspect your air compressor according to manufacturer’s instructions.

REV 04/05

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