Harbor Freight Tools 91938 User Manual

14” HEAVY DUTY CUT-OFF SAW

Model 91938

ASSEMBLY AND OPERATING INSTRUCTIONS

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

3491 Mission Oaks Blvd., Camarillo, CA 93011

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

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.

PRODUCT SPECIFICATIONS

Electrical Requirements 120V/60Hz/15 AMP’s Rated

Speed 3500 RPM

Maximum Cut-Off Wheel Diameter 14”

Recommended Cut-Off Wheel Types

Cutting Capacity 4-1/4”

Quick Release Vice Capacities 7” (1st Setting), 9-1/2” (2nd Setting)

Arbor Size 1”

Overall Dimensions 25-1/2”L x 18-1/2”W x 10-3/4”W

Weight 34-1/2 lbs.

14” Cut-Off Wheel for Metal (SKU 44814, included)

14” Cut-Off Wheel for Masonry (SKU 44815)

E105017

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.

GENERAL SAFETY RULES

WARNING!

READ AND UNDERSTAND ALL INSTRUCTIONS

Failure to follow all instructions listed below may result in

electric shock, ﬁre, and/or serious injury.

SAVE THESE INSTRUCTIONS

WORK AREA

1. Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents.

2. Do not operate power tools in explosive atmospheres, such as in the presence of ﬂammable liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes.

3. Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. Protect others in the work area from debris such as chips and sparks. Provide barriers or shields as needed.

REV 09/04

SKU 91938 For technical questions, please call 1-800-444-3353. Page 2

ELECTRICAL SAFETY

4. Grounded tools must be plugged into an outlet properly installed and grounded in accordance with all codes and ordinances. Never remove the grounding prong or modify the plug in any way. Do not use any adapter plugs. Check with a qualiﬁed electrician if you are in doubt as to whether the outlet is properly grounded. If the tools should electrically malfunction or

break down, grounding provides a low resistance path to carry electricity away from the user.

5. Double insulated tools are equipped with a polarized plug (one blade is

wider than the other). This plug will ﬁt in a polarized outlet only one way. If the plug does not ﬁt fully in the outlet, reverse the plug. If it still does not ﬁt, contact a qualiﬁed electrician to install a polarized outlet. Do not change the plug in any way. Double insulation eliminates the need for the

three wire grounded power cord and grounded power supply system.

6. Avoid body contact with grounded surfaces such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is grounded.

7. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

8. Do not abuse the Power Cord. Never use the Power Cord to carry the tools

or pull the Plug from an outlet. Keep the Power Cord away from heat, oil, sharp edges, or moving parts. Replace damaged Power Cords immedi- ately. Damaged Power Cords increase the risk of electric shock.

9. When operating a power tool outside, use an outdoor extension cord marked “W-A” or “W”. These extension cords are rated for outdoor use, and

reduce the risk of electric shock.

PERSONAL SAFETY

10. Stay alert. Watch what you are doing, and use common sense when oper-

ating a power tool. Do not use a power tool while tired or under the inﬂu- ence of drugs, alcohol, or medication. A moment of inattention while operat-

ing power tools may result in serious personal injury.

11. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.

SKU 91938 For technical questions, please call 1-800-444-3353. Page 3

12. Avoid accidental starting. Be sure the Power Switch is off before plugging in. Carrying power tools with your ﬁnger on the Power Switch, or plugging in power tools with the Power Switch on, invites accidents.

13. Remove adjusting keys or wrenches before turning the power tool on. A wrench or a key that is left attached to a rotating part of the power tool may result in personal injury.

14. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance enables better control of the power tool in unexpected situations.

15. Use safety equipment. Always wear ANSI approve eye protection. Dust mask, non-skid safety shoes, hard hat, or hearing protection must be used for appropriate conditions.

TOOL USE AND CARE

16. Use the included clamp or other practical ways to secure and support the workpiece to the Base (13). Holding the work by hand or against your body is

unstable and may lead to loss of control.

17. Do not force the tool. Use the correct tool for your application. The correct

tool will do the job better and safer at the rate for which it is designed.

18. Do not use the power tool if the Power Switch does not turn it on or off.

Any tool that cannot be controlled with the Power Switch is dangerous and must be replaced.

19. Disconnect the Power Cord Plug from the power source before making any

adjustments, changing accessories, or storing the tool. Such preventive safety measures reduce the risk of starting the tool accidentally.

20. Store idle tools out of reach of children and other untrained persons. Tools

are dangerous in the hands of untrained users.

21. Maintain tools with care. Keep cutting tools sharp and clean. Properly

maintained tools with a sharp cutting edge are less likely to bind and are easier to control. Do not use a damaged tool. Tag damaged tools “Do not use” until repaired.

22. Check for misalignment or binding of moving parts, breakage of parts, and

any other condition that may affect the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly main-

tained tools.

SKU 91938 For technical questions, please call 1-800-444-3353. Page 4

23. Use only accessories that are recommended by the manufacturer of your

model. Accessories that may be suitable for one tool may become hazardous when used on another tool.

SERVICE

24. Tool service must be performed only by qualiﬁed repair personnel. Service

or maintenance performed by unqualiﬁed personnel could result in a risk of injury.

25. When servicing a tool, use only identical replacement parts. Follow

instructions in the “Inspection, Maintenance, And Cleaning” section of this manual. Use of unauthorized parts or failure to follow maintenance instructions

may create a risk of electric shock or injury.

SPECIFIC SAFETY RULES

1. Maintain labels and nameplates on the Cut-Off Saw. These carry important

information. If unreadable or missing, contact Harbor Freight Tools for a replace ment

2. Maintain a safe working environment. Keep the work area well lit. Make sure there is adequate surrounding workspace. Always keep the work area free of obstructions, grease, oil, trash, and other debris. Do not use a power tool in areas near ﬂammable chemicals, dusts, and vapors. Do not use this product in a damp or wet location.

3. Avoid unintentional starting. Make sure you are prepared to begin work

before turning on the Cut-Off Saw.

4. Do not force the Cut-Off Saw. This tool will do the work better and safer at

the speed and capacity for which it was designed.

5. Always keep the extension cord away from moving parts on the tool.

6. Keep hands and ﬁngers away from the cutting area and the Cut-Off Wheel.

Keep one hand on the handle and the other on the motor housing. If both hands are holding the saw, you hands and ﬁngers cannot be cut by the Cut-Off Wheel.

7. Do not reach under the base of the Cut-Off Saw. The Swing Guard (53)

cannot protect you from the Cut-Off Wheel below the base.

SKU 91938 For technical questions, please call 1-800-444-3353. Page 5

8. Check Swing Guard (53) for proper closing before each use. Do not operate

the Saw if the Swing Guard does not move freely and close instantly. Never clamp or tie the Swing Guard (53) into the open position. If the saw is acci-

dently dropped, the Swing Guard (53) may be bent. Raise the Swing Guard (53) and make sure it moves freely and does not touch the Cut-Off Wheel or another part, in all depths of cut.

9. The Swing Guard (53) should be retracted manually only for special cuts

such as “Pocket Cuts) and “Compound Cuts.” Raise the Swing Guard (53) only enough to begin the cut. As soon as the Cut-Off Wheel enters the material, the Swing Guard (53) must be released. For all other sawing, the

Swing Guard (53) should be allowed to operate automatically.

10. The Saw is not to be used for any cutting in the locked down position. The

Saw should be locked down position only for carrying and storage.

11. Always use Cut-Off Wheels with a 14” diameter, 1” arbor hole, and rated at

a minimum of 3750 RPM. Cut-Off Wheels that do not match the mounting hard- ware of the Saw or that are rated at less than the Saw’s maximum RPM may ﬂy off the Saw or may run eccentrically, causing loss of control.

12. Never use damaged or incorrect Cut-Off Wheel washers or bolts. The Cut-

Off Wheel’s washers and bolts were specially designed for your Saw, for opti- mum performance and safety of operation.

13. Do not use the included Cut-Off Wheel to cut aluminum, copper, brass, or

other non-ferrous metals. The included Cut-Off Wheel is designed to cut only ferrous (iron containing) metals such as steel alloys and cast iron. If using other Cut-Off Wheels, only use them on materials that the manufacturer recommends.

14. To avoid accidental injury, always wear heavy duty work gloves and work

bib when changing a Cut-Off Wheel.

15. Before using the Cut-Off Saw, make sure the Cut-Off Wheel is properly

mounted on the saw spindle. Make sure the Cut-Off Wheel is balanced and is

not broken or bent.

16. Always unplug the Cut-Off Saw from its electrical outlet before perform-

ing any inspection, maintenance, or cleaning procedures.

SKU 91938 For technical questions, please call 1-800-444-3353. Page 6

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