Harbor Freight Tools Nail Gun 94446 User Manual

®
2 in 1 Flooring Cleat/  
Staple nailer  
Model 94446  
aSSeMBlY and operating  
inStrUCtionS  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Visit our Web site at http://www.harborfreight.com  
©
®
Copyright 2006 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 and replacement parts, please call 1-800-444-3353  
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8. do not overreach. Keep proper footing and balance at all times. Do not reach over or  
across running machines or air hoses.  
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 a qualified technician.The handles  
must be kept clean, dry, and free from oil and grease at all times.  
10. disconnect air supply. Disconnect air hose 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 plugging it in.  
12. avoid unintentional starting. Do not carry any tool while holding the trigger, whether  
it is plugged in 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 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 any switch does not turn On and Off 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. When servicing, use only identical replacement  
parts. 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 for the air  
compressor, it must be of the proper size and type to supply the correct current to the  
tool without heating up. Otherwise, the extension cord could melt and catch fire, or cause  
electrical damage to the tool. Check your compressor’s manual for the appropriate size  
cord.  
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.  
19. Maintenance. For your safety, maintenance should be performed regularly by a qualified  
technician.  
20. Compressed air only. Never use combustible gases as a power source.  
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 94446  
For technical questions, please call 1-800-444-3353.  
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Unpacking  
When unpacking, check to make sure the item is intact and undamaged. 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.  
Setup  
1/4”-18 NPT  
Floor  
Stapler  
For best service you should incorporate an oiler, regulator, and inline filter, as shown in the  
diagram above. Hoses, couplers, oilers, regulators, and filters are all available at Harbor  
Freight Tools.  
1. Wrap the Air Inlet (37) with pipe thread seal tape (not included) before threading it into  
the Arm (30). Connect the 3/8” ID Air Source Hose to the Air Inlet (37).  
note: If you are not using an automatic oiler system, before each use add a few drops of  
Pneumatic Tool Oil to the airline connection. Add a few drops more after each hour of  
continual use.  
2. Set the air pressure on your compressor to between 60-125 PSI. Do not exceed the  
maximum air pressure of 125 PSI.  
3. Check the air connection for leaks. Disconnect from the air source.  
REV 11/06  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
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loading the tool  
Warning! Disconnect the Stapler from the air compressor whenever loading or servicing. After  
disconnecting the Stapler from the air compressor, there could still be enough air pressure to  
fire the Stapler. After the air compressor hose is disconnected, always fire the Stapler into a  
piece of scrap to make sure all of the air is expended.  
1. Grip the Sleeve (78) and pull out the Magazine Cover (72).  
Caution: the Magazine Cover (72) may snap closed with force, sometimes without  
warning.  
Cleats  
FigUre 1  
2. Install fasteners:  
Cleats – Place the Cleats into the larger slot in the magazine so that the top of the cleat  
rests on the rail in the center of the magazine. See Figure 1, above.  
Staples – Place the staples over the center rail of the magazine.  
note: Only use the fastener types and sizes listed on the Specifications Chart on page 2.  
3. While holding the Sleeve (78) securely, slide the Magazine Cover (72) closed.  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
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operation  
1.  
Connect the Floor Stapler to the air hose and turn on the air compressor.  
note: Before using on a floor, test the unit on a scrap piece of wood. Adjust the driving depth  
by providing more or less air pressure. Never exceed 125 PSI.  
Warning! Keep your feet clear of the Stapler. Refer to Figure 2.  
2.  
Hold the Handle (44) securely with one hand and grip the Hammer with the other  
hand.  
FigUre 2  
FigUre 3  
Hammer  
Face (1)  
(Striking this with the  
Trigger (33) held causes  
the stapler to fire.)  
trigger (33)  
(This helps prevent  
unintentional firing.)  
Fasteners exit the Stapler from the bottom in the  
direction indicated above.  
3.  
Make sure the Base Plate (52) is over the Fastener target position. Press down hard  
so that the Base Plate (52) is firmly contacting the floor.Then squeeze the Trigger (33)  
and strike the Hammer Face (1) with the Hammer to drive out a Fastener. Lift the tool  
off of the floor. See Figure 3.  
4.  
Repeat the process until you are finished.Then, disconnect the Floor Stapler from the  
air source.  
Warning! After disconnecting the Stapler from the air compressor, there could still be enough  
air pressure to fire the Stapler. After the air compressor hose is disconnected, always  
fire the Stapler into a piece of scrap to make sure all of the air is expended.  
REV 11/06  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
Page 6  
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anytime any maintenance or repairs are done (including clearing jams), FirSt:  
1.  
2.  
3.  
Disconnect the Stapler from the air hose.  
Empty Magazine (59, 69) completely.  
Attempt to fire the Stapler into a piece of scrap wood to ensure that it is disconnected  
and is incapable of firing any Fasteners.  
4.  
always leave Magazine Cover (72) closed during maintenance. the Magazine  
Cover is spring-loaded and may cause parts or a Fastener to fly out of the Stapler  
if it suddenly snaps closed.  
Clearing Jams  
1. Disconnect tool from air hose, empty Magazine (59, 69) of Fasteners, release any built-  
up air pressure, and keep the magazine closed, as explained above.  
2. While doing this step and the next, hold the Stapler pointed away from you and any other  
people or fragile objects. Remove all three Screws (49) and Washers (4) on the Driver  
Cover (48). See Figure 4.  
FigUre 4  
driver  
Blade  
FigUre 5  
3. Carefully lift the Driver Cover (48) off and remove the jammed Fastener. Pliers may be  
necessary to remove a stuck Fastener.  
4. Inspect the Driver on the end of the Piston Assembly (26) for bends or breakage. If it is  
damaged, do not use the tool until it is repaired by a qualified technician. See Figure  
5.  
5. Lightly oil the driver and replace the Driver Cover (48). Make sure that the Driver Cover  
(48) fits in place flush and that the Driver does not get pinched by it. Replace and se-  
curely tighten all of the Screws (49) and Washers (4).  
6. Reload the Stapler and reconnect it to the air hose.  
7. Press the tip of the Stapler against an appropriate piece of scrap wood.  
8. Test fire the Stapler several times, checking for proper operation.  
9. Disconnect the Stapler, remove the Fasteners, and store the Stapler in a location out of  
children’s reach.  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
Page 7  
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anytime any maintenance or repairs are done, FirSt:  
Disconnect the Stapler from the air hose.  
1.  
2.  
3.  
Empty Magazine (59, 69) completely.  
Attempt to fire the Stapler into a piece of scrap wood to ensure that it is disconnected  
and is incapable of firing any Fasteners.  
4.  
always leave Magazine Cover (72) closed during maintenance. the Magazine  
Cover is spring-loaded and may cause parts or a Fastener to fly out of the Stapler  
if it suddenly snaps closed.  
Maintenance  
Periodically lubricate all moving parts and pivots with a light oil.  
1.  
2.  
Wipe down the Floor Stapler with a damp cloth. Do not use harsh detergents or  
solvents.  
3.  
Check that the Base Plate (52) and the Hammer Face (1) is clear of any dirt or  
debris.  
troubleshooting  
note: Have the following problems repaired by a qualified service technician.  
proBleM  
Air leaking in nose  
CaUSe  
SolUtion  
1. Loose Nose Screws  
2. Bumper is cracked/worn  
1. Tighten and recheck  
2. Replace Bumper  
Lack of Power, slow to cycle.  
1. Tool is too dry  
1. Lubricate  
2. Air Pressure is too low  
3. Exhaust blocked  
2. Check air supply equipment  
3. Clean exhaust channel  
Intermittent feeding or no fastener 1. Damaged pusher spring  
1. Replace Spring  
coming out  
2. Wrong size Fastener  
2. Use correct size  
3. Dirty magazine or wearplate  
3. Clean magazine and nose  
Jammed Fastener  
1. Driver channel worn  
2. Driver is broken/worn  
3. Bent Fasteners  
1. Replace wear plate  
2. Replace driver  
3. Use straight Fasteners  
pleaSe read tHe FolloWing CareFUllY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS 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  
OFTHE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATESTHAT  
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.  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
Page 8  
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parts list  
part  
1
description  
Hammer Face  
part  
description  
part  
description  
28 Bumper  
29 Seal  
55 Washer  
2
O-ring 30.3 x 2.65  
Screw  
56 Coil Spring  
57 Spring Bracket  
58 Screw  
3
30 Arm  
4
Spring Washer  
Cylinder Cap  
Screw  
31 Handle A  
32 Locknut  
33 Trigger  
5
59 Magazine A  
60 Washer  
6
7
Spring Washer  
Actuator A  
34 Sleeve  
61 Screw  
8
35 Pin  
62 Screw  
9
Snap Ring  
36 Pin  
63 Plate  
10 Half Block  
37 Air Inlet  
38 Spring  
64 Limit Nut  
65 Support Plate A  
66 Screw  
11 Bushing  
12 O-ring 33.3 x 2.65  
13 Actuator B  
39 Trigger Valve Stem  
40 O-ring 6.4 x 1.8  
41 O-ring 11 x 1.4  
42 Trigger Valve Guide  
43 Screw  
67 Spring Washer  
68 Screw  
14 O-ring 57.4 x 3.5  
15 Retaining Ring  
16 Poppet Cap  
17 O-ring 42 x 3.5  
18 Plunger  
69 Magazine B  
70 Bushing  
71 Pin  
44 Handle B  
45 Screw  
72 Magazine Cover  
73 Feeder  
19 O-ring 21 x 2  
20 O-ring 14.3 x 2.5  
21 Body  
46 Guide Body  
47 Pin  
74 Nut  
48 Driver Cover  
49 Screw  
75 Rail A  
22 Cylinder  
76 Orienting Plate  
77 Rail B  
23 O-ring 17.5 x 2.6  
24 O-ring 38.5 x 4.5  
25 Poppet  
50 Pin  
51 Plate  
78 Sleeve  
52 Base Plate  
53 Screw  
79 Screw  
26 Piston Assembly  
27 O-ring 58.7 x 3.5  
80 Support Plate B  
81 Magazine Handle  
54 Pad  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
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assembly diagram  
SKU 94446  
For technical questions, please call 1-800-444-3353.  
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SKU 94446  
For technical questions, please call 1-800-444-3353.  
Page 11  
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