Chicago Electric 91938 User Manual

14” HEAVY DUTY CUT-OFF SAW

Model

91938

SET UP AND OPERATING INSTRUCTIONS

Visit our website at: http://www.harborfreight.com

Read this material before using this product.

Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Copyright© 2004 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. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for
assembly and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.

Manual Revised 10a

CONTENTS

IMPORTANT SAFETY

INFORMATION .................................3

GENERAL TOOL SAFETY WARNINGS . 3

GROUNDING INSTRUCTIONS ..........5

110-120 V~ GROUNDED TOOLS:

TOOLS WITH

THREE PRONG PLUGS ....................... 5

CUT-OFF SAW SAFETY WARNINGS .... 5

SPECIFICATIONS ...............................8

UNPACKING .......................................8

INSTRUCTIONS FOR PUTTING

INTO USE .........................................8

FUNCTIONS ............................................ 8

OPERATING INSTRUCTIONS ...........9

TOOL SET UP ......................................... 9

WORK PIECE AND WORK AREA

SET UP ............................................... 10

GENERAL OPERATING

INSTRUCTIONS ..................................11

MAINTENANCE AND SERVICING ...12

CLEANING, MAINTENANCE, AND

LUBRICATION .................................... 12

TROUBLESHOOTING ........................... 13

PARTS LIST ......................................14

ASSEMBLY DIAGRAM .....................15

LIMITED 90 DAY WARRANTY .........16

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

SAVE THIS MANUAL

Keep this manual for the safety warnings
and precautions, assembly, operating,
inspection, maintenance and cleaning
procedures. Write the product’s serial number
in the back of the manual near the assembly
diagram (or month and year of purchase if
product has no number). Keep this manual
and the receipt in a safe and dry place for
future reference.

IMPORTANT SAFETY

INFORMATION

In this manual, on the labeling, and
all other information provided with
this product:

This is the safety alert

symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that follow
this symbol to avoid possible
injury or death.

DANGER indicates a

hazardous situation
which, if not avoided, will result
in death or serious injury.

WARNING indicates a

hazardous situation
which, if not avoided, could
result in death or serious injury.

NOTICE is used to

address practices not

related to personal injury.
CAUTION, without the

safety alert symbol, is
used to address practices not
related to personal injury.

General Tool Safety Warnings

WARNING Read all safety warnings

and instructions. Failure to follow the

warnings and instructions may result

in electric shock, re and/or serious

injury.

Save all warnings and instructions
for future reference.

KEEP GUARDS IN PLACE and in 1.
working order.

REMOVE ADJUSTING KEYS AND 2.
WRENCHES. Form habit of checking to
see that keys and adjusting wrenches
are removed from tool before turning it
on.

KEEP WORK AREA CLEAN. Cluttered 3.
areas and benches invite accidents.

DON’T USE IN DANGEROUS 4.
ENVIRONMENT. Don’t use power tools
in damp or wet locations, or expose them
to rain. Keep work area well lighted.

KEEP CHILDREN AWAY. All visitors 5.
should be kept safe distance from work
area.

CAUTION, used with

the safety alert
symbol, indicates a hazardous
situation which, if not avoided,
could result in minor or moderate
injury.

MAKE WORKSHOP KID PROOF 6.
with padlocks, master switches, or by
removing starter keys.

DON’T FORCE TOOL. It will do the job 7.
better and safer at the rate for which it
was designed.

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

USE RIGHT TOOL. Don’t force tool or 8.
attachment to do a job for which it was
not designed.

RECOMMENDED MINIMUM WIRE

GAUGE FOR EXTENSION CORDS

(120 VOLT)

NAMEPLATE

AMPERES

(at full load)

0 – 6 18 16 16 14

6.1 – 10 18 16 14 12

10.1 – 12 16 16 14 12

12.1 – 16 14 12 Do not use.

EXTENSION CORD

LENGTH

25’ 50’ 100’ 150’

TABLE A

DON’T OVERREACH. Keep proper 13.
footing and balance at all times.

MAINTAIN TOOLS WITH CARE. Keep 14.
tools sharp and clean for best and safest
performance. Follow instructions for
lubricating and changing accessories.

DISCONNECT TOOLS before servicing; 15.
when changing accessories, such as
blades, bits, cutters, and the like.

REDUCE THE RISK OF 16.
UNINTENTIONAL STARTING. Make
sure switch is in off position before
plugging in.

USE PROPER EXTENSION CORD. 9.
Make sure your extension cord is in good
condition. When using an extension
cord, be sure to use one heavy enough
to carry the current your product will
draw. An undersized cord will cause a
drop in line voltage resulting in loss of
power and overheating. Table A shows
the correct size to use depending on
cord length and nameplate ampere
rating. If in doubt, use the next heavier
gauge. The smaller the gauge number,
the heavier the cord.

WEAR PROPER APPAREL. Do not wear 10.
loose clothing, gloves, neckties, rings,
bracelets, or other jewelry which may get
caught in moving parts. Nonslip footwear
is recommended. Wear protective hair
covering to contain long hair.

ALWAYS USE SAFETY GLASSES. Also 11.
use face or dust mask if cutting operation
is dusty. Everyday eyeglasses only have
impact resistant lenses, they are NOT
safety glasses.

SECURE WORK. Use vise to hold work 12.
when practical. It’s safer than using your
hand and it frees both hands to operate
tool.

USE RECOMMENDED ACCESSORIES. 17.
Consult the owner’s manual for
recommended accessories. The use of
improper accessories may cause risk of
injury to persons.

NEVER STAND ON TOOL. Serious 18.
injury could occur if the tool is tipped
or if the cutting tool is unintentionally
contacted.

CHECK DAMAGED PARTS. Before 19.
further use of the tool, a guard or other
part that is damaged should be carefully
checked to determine that it will operate
properly and perform its intended
function – check for alignment of moving
parts, binding of moving parts, breakage
of parts, mounting, and any other
conditions that may affect its operation.
A guard or other part that is damaged
should be properly repaired or replaced.

DIRECTION OF FEED. Feed work into 20.
a blade or cutter against the direction of
rotation of the blade or cutter only.

NEVER LEAVE TOOL RUNNING 21.
UNATTENDED. TURN POWER OFF.
Don’t leave tool until it comes to a
complete stop.

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

GROUNDING INSTRUCTIONS

TO PREVENT

ELECTRIC SHOCK
AND DEATH FROM INCORRECT
GROUNDING WIRE
CONNECTION
READ AND FOLLOW THESE
INSTRUCTIONS:

3-pole receptacles that accept the tool’s
plug.

Repair or replace damaged or worn cord 6.
immediately.

110-120 V~ Grounded Tools:

Tools with Three Prong Plugs

In the event of a malfunction or 1.
breakdown, grounding provides a path
of least resistance for electric current
to reduce the risk of electric shock.
This tool is equipped with an electric
cord having an equipment-grounding
conductor and a grounding plug. The
plug must be plugged into a matching
outlet that is properly installed and
grounded in accordance with all local
codes and ordinances.

Do not modify the plug provided – if it will 2.

not t the outlet, have the proper outlet
installed by a qualied electrician.

Improper connection of the equipment-3.
grounding conductor can result in a risk
of electric shock. The conductor with
insulation having an outer surface that
is green with or without yellow stripes is
the equipment-grounding conductor. If
repair or replacement of the electric cord
or plug is necessary, do not connect the
equipment-grounding conductor to a live
terminal.

Check with a qualied electrician or 4.
service personnel if the grounding
instructions are not completely
understood, or if in doubt as to whether
the tool is properly grounded.

Use only 3-wire extension cords that 5.
have 3-prong grounding plugs and

Grounding

Pin

125 V~ 3-Prong Plug and Outlet

(for up to 125 V~ and up to 15 A)

This tool is intended for use on a circuit 7.
that has an outlet that looks like the one
illustrated above in 125 V~ 3-Prong
Plug and Outlet. The tool has a
grounding plug that looks like the plug
illustrated above in 125 V~ 3-Prong
Plug and Outlet.

The outlet must be properly installed and 8.
grounded in accordance with all codes
and ordinances.

Do not use an adapter to connect this 9.
tool to a different outlet.

Cut-off Saw Safety Warnings

For Your Own Safety Read Instruction

Manual Before Operating Cut-off Saw

Check Swing Guard (53) for proper 1.
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
accidently 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.

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