Central Pneumatic 92917 User manual

COIL ROOFING NAILER
3/4”TO 1-3/4” FASTENER LENGTH CAPACITY
92917
93253
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© 2005 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.
Manual Revised 05/06

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 2
Specifications
92917 93253
Unit Weight 8 lb. 6 lb.
Housing Material Aluminum Alloy Magnesium
Fastener Length Capacity 3/4” to 1-3/4” Long
Fastener Thickness 0.12” Diameter (Approximately)
Magazine Capacity 120 Nails
Operating PSI 70 to 100
Air Consumption 2.5 CFM @ 90 PSI
Triggering Type Full-Sequential Safety Mechanism
Accessories
5mmHexWrench,Pneumatic
Tool Oil, Coil of 120 Nails,
Carrying Case
5mmHexWrench,Pneumatic
Tool Oil
Save This Manual
You will need this manual for the safety warnings and precautions, assembly, operat-
ing, 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!
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 electri-
cally 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.
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
1.
2.
3.
4.
5.
REV 09/05; 12/05

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 3
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 foot
wear 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 a NIOSH-approved
dust mask or respirator when working around metal, wood, and chemi-
cal 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. Fol-
low instructions for lubricating and changing accessories. Inspect tool cords and
air hoses periodically and, if damaged, have them repaired by a qualified techni-
cian. 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.
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.
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.
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.
Stay alert. Watch what you are doing, use common sense. Do not operate any
tool when you are tired.
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 the trigger does not operate properly.
6.
7.
8.
9.
10.
11.
12.
13.
14.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 4
Guard against electric shock. Prevent body contact with grounded surfaces such
as pipes, radiators, ranges, and refrigerator enclosures.
Replacement parts and accessories. This product is to be repaired and serviced
only by a qualified technician. When this product is serviced, only identical replace-
ment 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.
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.
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 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 exten-
sion 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.
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.
Compressed air only. Never use combustible gas as a power source.
Do not load nails with the trigger or safety depressed. Uninten-
tional firing may occur. Do not load nails when the air hose is con-
nected to the tool. Always assume the tool contains fasteners.
Disconnect air supply before loading the Nailer. Before reloading (or making
any adjustments to) the Nailer, make sure the compressed air is disconnected.
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 person. Always
wear ANSI approved safety goggles during use, maintenance, and reloading.
Do not fire fasteners too close to the edge of a workpiece. They may split the
workpiece and fly free, causing personal injury.
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.
15.
16.
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21.
22.
23.
24.
25.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 5
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.)
Stay within air pressure capacity. Never operate the Nailer above 100 PSI.
Hold tool away from head and body. During operation the Nailer may kick back
causing injury.
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.
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
26.
27.
28.
29.
30.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 6
Note: To connect this tool, we recommend you use Air Plug (83, not included). For smoother
operation and to extend the life-span of the tool, put 3-5 drops of pneumatic tool oil
in the attached Air Plug (83) before each use.
Unpacking
When unpacking, check to make sure all parts shown in the Parts List on page 13
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.
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 avail-
able at Harbor Freight Tools.
TO
ROOFING
NAILER
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.
Make sure the tool is disconnected from the air supply.
Completely empty the Nail Canister (90) of nails.
The Nailer should not fire if the nose is not depressed against the workpiece.
Make sure the Trigger (73) and nose move freely, without sticking - see the illustra-
tion on the following page.
1.
2.
3.
4.
REV 11/05

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 7
Connect the air supply to the tool at the Air Plug (83). Set the regulator at the rec-
ommended 70 PSI to 100 PSI, and set not to go over the maximum 100 PSI.
Test the tool by depressing the nose against the workpiece without pulling the Trig-
ger (73). 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 nose of the tool should return to its
original position. Squeeze the Trigger (73). The tool should not cycle (fire). If the
tool fires, stop immediately and have it repaired by a qualified service technician.
Depress the nose against the workpiece and squeeze the Trigger (73). 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.
5.
6.
7.
8.
Loading Coil 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.
NOSE
TRIGGER (73)
AIR PLUG (83)

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 8
To open the Canister (90), press down on the Pin (91) and swing the Door (53) and
Canister Cover (84) open.
Check the Canister Platform (86) inside the Canister (90). The Platform can be
adjusted up and down to use various lengths of nails from 3/4” to 1-3/4”:
A. 3/4” Long Nails
(Use top setting).
B. Between 3/4” and 1-3/4” Long Nails
(Use middle setting).
C. 1-3/4” Long Nails
(Use bottom setting).
CANISTER COVER
(84)
CANISTER COVER (84)
(TURN TO ADJUST)
CANISTER (90)
CANISTER (90)
NAILS
CANISTER PLATFORM (86)
DOOR
(53)
DOOR
(53)
PIN (91)
FEED PAWL (51)
1.
2.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 9
Place a coil of Nails (99) around the Canister Platform (86) in the Nail Canister
(90).
Uncoil enough nails to reach the Feed Pawl (51). Place the second nail on the coil
between the teeth of the Feed Pawl, making sure the nail head fits in the slot in the
upper portion of the Feed Pawl.
Swing the Canister Cover (84) closed. Then, close the Door (53). Make sure the
Door closes securely. If it does not engage, the nail head is not in the slot in the
upper portion of the Feed Pawl (51).
To Adjust The Shingle Gauge:
The Bracket (96) controls roof shingle spacing. To adjust the Bracket to work with a
particular width of shingles, use the accessory Hex Wrench (97) to loosen the two
Screws (28) on the Bracket. Slide the Bracket forward or backward to the desired
spacing. Then, retighten the two Screws.
BOTTOM
VIEW
SCREWS
(28)
BRACKET
(96)
SHINGLE SPACING
3.
4.
5.
Operating the Nailer
Attach the Nailer to the air supply at the Air Plug (83). Start your compressor and
check the pressure making sure it is set at the recommended 70-100 PSI and not
to go over the maximum 100 PSI.
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
(73) once. Do not fire repeatedly. Nails could bounce off of one another, damag-
ing the workpiece or causing PERSONAL INJURY.
Caution: When the Trigger (73) is depressed, the Roofing Nailer will fire if the Nose
of the tool comes in contact with anything.
1.
2.
3.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 10
Do not press the Nose of the Roofing Nailer against the work surface with extra force.
Allow the tool to do the work. Always allow the tool to recoil off the workpiece.
Caution: While working on roofs, tar and dirt may build up on the Nose of the Roof-
ing Nailer. This can prevent normal operation. Remove buildup with a nonflammable
solvent. NEVER use gasoline or other flammable solvents. Do not immerse the
Roofing Nailer in an approved solvent beyond the height of the nail heads, to avoid
getting the solvent into the drive cylinder of the tool. Make sure to dry off the Roof-
ing Nailer before use. Any oil film left after cleanup will accelerate tar buildup.
When finished using the Roofing Nailer, always disconnect the tool from its com-
pressed air supply. Empty the Nail Canister (90) completely of nails. Attempt to
fire the Roofing Nailer into a piece of scrap wood to ensure it is disconnected and
is incapable of firing any nails. Always leave the Nail Canister open during this
procedure. The Canister is spring loaded and may cause parts or a nail to fly
out of the Roofing Nailer.
Make sure to store the Roofing Nailer in its accessory Carrying Case and in a clean,
dry, safe location out of reach of children.
4.
5.
6.
7.
ROOFING SHINGLE
NOSE
TRIGGER (73)
AIR SUPPLY HOSE
(NOT INCLUDED)

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 11
Clearing Jams
Occasionally a nail may become jammed in the firing mechanism of the Roofing
Nailer, making the tool inoperable.
To remove a jammed nail, disconnect the Roofing Nailer from its compressed air
supply. Empty the Nail Canister (90) completely of nails. Attempt to fire the Roof-
ing Nailer into a piece of scrap wood to ensure it is disconnected and is incapable
of firing any nails. Always leave the Canister open during this procedure. The Nail
Canister is spring loaded and may cause parts or a nail to fly out of the Roofing
Nailer.
Use a pair of needle nose pliers (not included) to remove the jammed nail (usually
from the Feed Pawl (51) area). Replace the coil of nails into the Roofing Nailer.
Close the Canister Cover (84) and Door (53) securely. Then, reconnect the air
supply hose to the tool.
1.
2.
3.
Anytime any maintenance or repairs are done (including clearing jams),
FIRST:
1. Disconnect the Nailer from the air hose.
2. Empty the Nail Canister (90) completely.
3. Attempt to fire the Nailer into a piece of scrap wood to ensure that it is
disconnected and is incapable of firing any nails.
4. Always leave the Nail Canister (90) open during maintenance. The Canister
is spring-loaded and may cause parts or a nail to fly out of the Nailer.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 12
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.
Inspection, Maintenance, and Cleaning
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 ac-
celerated 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.
Store the unit in a clean and dry location.
All maintenance, service, or repairs not listed in this manual are only to be
attempted by a qualified technician.
1.
2.
3.
4.
Anytime any maintenance or repairs are done, FIRST:
1. Disconnect the Nailer from the air hose.
2. Empty the Nail Canister (90) completely.
3. Attempt to fire the Nailer into a piece of scrap wood to ensure that it is
disconnected and is incapable of firing any nails.
4. Always leave the Nail Canister (90) open during maintenance. The Canister
is spring-loaded and may cause parts or a nail to fly out of the Nailer.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 13
PARTS LIST
NOTE:
Some parts are listed and shown for illustration purposes only, and are not available individually
as replacement parts. REV 11/05
Part Description
1 Screw
2 Exhaust Cover
3 Screw
4 Screw
5 Cap
6 Packing
7 Ring
8 Head Cap
9 Compression Spring
10 O-Ring
11 Head Valve
12 O-Ring
13 Cylinder Ring
14 Screw
15 Washer
16 Piston Head
17 O-Ring
18 Driver Blade
19 Screw
20 Cylinder Plate
21 O-Ring
22 Cylinder
23 O-Ring
24 Cylinder Ring
25 O-Ring
26 Bumper
27 Push Lever
28 Screw
29 Flake
30 Spring
31 Cover Plate
32 Nose (Bottom Plate)
33 Feed Pawl (A)
34 Pin Guide
35 Spring
Part Description
36 Feed Piston
37 Spring Guide
38 O-Ring
39 O-Ring
40 Spring
41 Spring
42 Spring Guide
43 Piston Stopper
44 Piston
45 Ring
46 Pin Guide
47 Ring
48 Pin
49 Screw
50 Screw
51 Feed Pawl (B)
52 Spring
53 Door
54 Pin
55 Pin
56 Pin Guide
57 Spring
58 Latch Door
59 Pin
60 Trigger Valve
61 O-Ring
62 O-Ring
63 Trigger Valve Cover
64 O-Ring
65 Trigger Plunger
66 Spring
67 O-Ring
68 O-Ring
69 Valve Bushing
70 Flake
Part Description
71 Pin
72 Pin
73 Trigger (A)
74 Pin
75 Trigger (B)
76 Screw
77 Screw
78 Grip Handle
79 Body
80 Spring
81 Filter Unit
82 End Cap
83 Air Plug (not included)
84 Canister Cover
85 Receiver (B)
86 Canister Platform
87 Canister Guide
88 Spring
89 Pin Guide
90 Canister
91 Pin
92 Ring
93 Screw
94 Platform Canister
95 Trigger
96 Bracket
97 5 mm Hex Wrench*
98 Pneumatic Tool Oil*
99 120 Piece Nail Coil*
100 Carrying Case*
P1 Driver Ass’y
Includes parts 14-18
P2 Trigger Ass’y
Includes parts 25 and 59-69
*Not shown on diagram
When ordering parts, specify which model number they are for.

SKU 92917 & 93253 For technical questions, please call 1-800-444-3353. Page 14
ASSEMBLY DIAGRAM
NOTE:
Some parts are listed and shown for illustration purposes only, and are not available individually
as replacement parts.