Harbor Freight Tools 90399 User Manual
FLOOR STAPLER
®
®
WITH HAMMER AND CASE
Model 90399
ASSEMBLY and OPERATING
INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright© 2003 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
Revised Manual 06/04
Specifications
Air Inlet 1/4” - 18 NPT
Recommended Air Pressure 70-90 PSI
Maximum Air Pressure 100 PSI
Dimensions 22-1/2” x 17-1/2” x 3-1/8”
Weight 21.85 Lbs.
Magazine Capacity 80 Pcs. / Top Loaded
Air Consumption 5.0 CFM @ 80 PSI
Fastener Size Range 3/4” to 2” Long x 15 Gauge
Staples included: 400, 1/2” crown, 2” Long, 15 Gauge
Iincludeds: Tool Oil, 3 Hex Wrenches, Storage Case, Hammer
Note: SKU 90429 - 2”, 15 Gauge Staples are available from Harbor Freight Tools.
Note: This Floor Stapler is designed for use on wood floors.
Save This Manual
You will need the manual for the safety warnings and precautions, assembly instructions,
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. THIS TOOL DOES NOT USE A SAFETY MECHANISM; extreme caution must be
used whenever this tool is connected to an air supply. If the tool is dropped or if the
Hammer Face (10) is accidentally struck, then the tool will fire a staple, potentially causing SEVERE PERSONAL INJURY.
2. Keep work area clean. Cluttered areas invite injuries.
3. Observe work area conditions. Do not use machines or power tools in damp or wet
locations. Don’t expose to rain. Keep work area well lighted. Do not use electrically
powered tools in the presence of flammable gases or liquids.
4. Keep children away. Children must never be allowed in the work area. Do not let them
handle machines, tools, extension cords, or air hoses.
5. 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.
6. 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.
REV 11/04; 04/05; 02/07
SKU 90399 For technical questions, please call 1-800-444-3353. Page 2
7. 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.
8. Use eye and ear protection. Always wear ANSI approved impact safety goggles. 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.
9. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines or air hoses.
10. 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
handles must be kept clean, dry, and free from oil and grease at all times.
11. Disconnect air supply. Disconnect air hose when not in use.
12. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches are
removed from the tool or machine work surface before plugging it in.
13. Avoid unintentional starting. Do not carry any tool with pressure applied to the Ham-
mer Face (10), whether it is plugged in or not.
14. Stay alert. Watch what you are doing, use common sense. Do not operate any tool when
you are tired.
15. 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.
16. Guard against electric shock. Prevent body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerator enclosures.
17. 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.
18. 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.
19. 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.
20. Maintenance. For your safety, maintenance should be performed regularly by a quali-
fied technician.
SKU 90399 For technical questions, please call 1-800-444-3353. Page 3
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