Harbor Freight Tools 42307 User Manual

BENCH TOP

CUT-OFF SAW

Model

42307

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© 2000 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 10g

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.

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.

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.

CAUTION, used

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

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KEEP WORK AREA CLEAN. Clut-3.
tered areas and benches invite ac­cidents.

DON’T USE IN DANGEROUS EN-4.
VIRONMENT. 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.

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

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

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

glasses only have impact resistant
lenses, they are NOT safety glasses.

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

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

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 10.
wear 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. 11.
Also use face or dust mask if cutting
operation is dusty. Everyday eye-

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

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

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

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

USE RECOMMENDED ACCESSO-17.
RIES. 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

SKU 42307 For technical questions, please call 1-800-444-3353. Page 3

or other part that is damaged should
be properly repaired or replaced.

proper outlet. Do not change the plug
in any way.

DIRECTION OF FEED. Feed work 20.
into 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.

GROUNDING INSTRUCTIONS

TO PREVENT

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

110-120 V~ Double Insulated
Tools: Tools with Two Prong

Plugs

Double insulated tools may be used 2.
in either of the 120 volt outlets shown
in the preceding illustration. (See

Outlets for 2-Prong Plug.)

Miter Saw Safety Warnings

For Your Own Safety Read Instruction

Manual Before Operating Miter Saw

Wear eye protection.1.

Keep hands out of path of saw blade.2.

Do not operate saw without guards in 3.
place.

Do not perform any operation free-4.
hand.

Never reach around saw blade.5.

Turn off tool and wait for saw blade 6.
to stop before moving workpiece or
changing settings.

Disconnect power before changing 7.
blade or servicing.

Return all guards to original position if 8.
any are moved during blade replace­ment. Check all guards for proper
operation after service.

DO NOT OPERATE WITH ANY 9.
GUARD DISABLED, DAMAGED,

Outlets for 2-Prong Plug

To reduce the risk of electric shock, 1.
double insulated equipment has a po­larized plug (one blade is wider than
the other). This plug will t in a polar­ized outlet only one way. If the plug

does not t fully in the outlet, reverse
the plug. If it still does not t, contact
a qualied electrician to install the

SKU 42307 For technical questions, please call 1-800-444-3353. Page 4

OR REMOVED. Moving guards
must move freely and close in­stantly.

The use of accessories or attach-10.
ments not recommended by the
manufacturer may result in a risk of
injury to persons.

When servicing use only identical 11.
replacement parts.

Only use safety equipment that has 12.
been approved by an appropriate
standards agency. Unapproved
safety equipment may not provide
adequate protection. Eye protection
must be ANSI-approved and breath-

a well ventilated area, and work with
approved safety equipment, such as
those dust masks that are specially

designed to lter out microscopic

particles. (California Health & Safety
Code § 25249.5, et seq.)

ing protection must be NIOSH-ap-

proved for the specic hazards in the

work area.

WARNING: Handling the cord on 18.
this product will expose you to lead,

a chemical known to the State of
Industrial applications must follow 13.
OSHA guidelines.

California to cause cancer, and birth

defects or other reproductive harm.

Wash hands after handling. (Califor­Maintain labels and nameplates on 14.

the tool. These carry important safety

nia Health & Safety Code § 25249.5,

et seq.)
information. If unreadable or miss-

ing, contact Harbor Freight Tools for a
replacement.

The warnings, precautions, and in-19.

structions discussed in this instruction

manual cannot cover all possible con­Avoid unintentional starting. Prepare 15.

to begin work before turning on the
tool.

People with pacemakers should 16.
consult their physician(s) before use.
Electromagnetic elds in close prox-

ditions 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.

imity to heart pacemaker could cause
pacemaker interference or pacemak­er failure.

WARNING: Some dust created by 17.
power sanding, sawing, grinding, drill­ing, and other construction activities,
contains 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 ce-

ment or other masonry products

• Arsenic and chromium from chemi­cally treated lumber
Your risk from these exposures var­ies, depending on how often you do
this type of work. To reduce your

Vibration Safety

This tool vibrates during use. Re-

peated or long-term exposure to

vibration may cause temporary or

permanent physical injury, particularly

to the hands, arms and shoulders. To

reduce the risk of vibration-related

injury:

Anyone using vibrating tools regu-1.

larly or for an extended period should

rst be examined by a doctor and

then have regular medical check-

ups to ensure medical problems are

not being caused or worsened from

use. Pregnant women or people

who have impaired blood circulation

to the hand, past hand injuries, ner-

vous system disorders, diabetes, or
exposure to these chemicals: work in

REV 09d

SKU 42307 For technical questions, please call 1-800-444-3353. Page 5

Raynaud’s Disease should not use
this tool. If you feel any medical or
physical symptoms related to vibra­tion (such as tingling, numbness, and

white or blue ngers), seek medical

advice as soon as possible.

Do not smoke during use. Nico-2.
tine reduces the blood supply to the

hands and ngers, increasing the risk

of vibration-related injury.

Wear suitable gloves to reduce the 3.
vibration effects on the user.

Use tools with the lowest vibration 4.
when there is a choice between dif­ferent processes.

Include vibration-free periods each 5.
day of work.

Grip tool as lightly as possible (while 6.
still keeping safe control of it). Let
the tool do the work.

To reduce vibration, maintain the tool 7.
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.

SAVE THESE

INSTRUCTIONS.

SKU 42307 For technical questions, please call 1-800-444-3353. Page 6

SPECIFICATIONS

Installing the Cutting Blade

Arbor 3/8”
Blade 2” HSS
Power Source 120 V~, 60 Hz, .9 A
Max. RPM 7800
Cutting Depth 3/4”
Miter Gauge 0°- 45°
Base 5-1/2” L X 5” W
Overall 9” Length X 5-1/2” W X 6-3/4” H

UNPACKING

When unpacking, make sure that the

item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon
as possible.

ASSEMBLY

Your Mini Cut-Off Saw will require

some assembly. Information on installa­tion is included below for your reference.
For assistance with assembly please refer
to the illustration in the operation section
as well as the Assembly diagram and the
Parts List near the end of this manual.

With the tool OFF and Unplugged, 1.

slide the Blade Guard (21) up and off

of the Saw.

Insert the HSS Saw Blade (18) onto 2.

the Arbor (16). Slide on the Washer

(19) and then tighten on the Screw

(20). Slide the Blade Guard (21)

back on.

WARNING! Mount the blade so that its ar-

row matches the arrow on the Blade

Guard (21).

Replacing the Timing Belt

Slide the Belt Cover (7) up to remove 1.

it from the Saw. This will expose the

Timing Belt (5) and the Driving Pul-

leys (12 and 4).

Slide the one end of the Timing Belt 2.

(5) over the Driving Pulley (4). Once

this side is in place, side the other

end of the Timing Belt (5) over the

Driving Pulley (12).

It is important that you read the entire

manual to become familiar with the unit
BEFORE you use it. Be sure that you
have all parts described in the Parts List.

The Mini Cut-Off Saw can be mount-

ed to your table or workbench with four
(4) 1/8” Bolts (not included). Insert a Bolt
through the hole in each corner and tight­en it into place with a Nut (not included).

The mounting surface must be at, level

and capable of supporting the weight of
the Saw combined with the materials to
be cut. The Saw can also be mounted by
securing the top of the Clamp (24) into its
slot (See Assembly Diagram) and tighten­ing the bottom of the clamp to the desired
work surface.

SKU 42307 For technical questions, please call 1-800-444-3353. Page 7

Make certain that the Timing Belt (5) 3.

is centered on both Driving Pulleys

(12 & 4). Replace the Belt Cover (7)

by sliding it back down into place.

Safety

Lever (27)

Switch (6)

Belt Cover (7)

Handle (8)

Arrow on Blade Guard

Blade Guard (21)

Vise Fixture (22)

Vise Handle (11)

OPERATION

When operating your Mini Cut-Off

Saw, it will be helpful to refer to Figure 1
as well as to the Parts List and Assembly
Diagram near the end of this manual.

Setting the Vise

The Miter Gauge on the Vise (9) can 1.
be set from 0°- 45°. Loosen the Vise
Fixture (22) and slide the Gauge to
the desired angle. Tighten the Vise
Fixture into place.

The Vise Jaw (25) can be adjusted 2.
for the work piece with the Vise
Handle (11). Turning the Vise Handle
(11) clockwise will tighten the Vise
Jaw(s) onto the workpiece. Turning
the Vise Handle counterclockwise will
loosen the Vise Jaw.

Figure 1

Vise Jaw (25)

Mounting Holes

Cutting

Place the material to be cut in the 1.

Vise (9) as described above.

The Mini Cut-Off Saw has a Safety 2.

Lever (27) which must be released to

lower the Blade. Pushing down on

the Safety Lever (27) will release the

Safety Lever, allowing you to push

down on the Handle (8) to begin cut-

ting.

Turn the Saw “ON” by pressing down 3.

on the red Switch (6) on the side

marked with —. To turn the Saw

“Off”, press down on the end of the

Switch (6) marked O.

With the Saw at full speed, move it 4.

slowly forward to complete the cut.

When the cut is complete, pull up on 5.

the Handle (8). The Safety Lever

(27) will engage. Turn the Saw “Off”.

Store out of reach of children.6.

REV 10a

SKU 42307 For technical questions, please call 1-800-444-3353. Page 8

MAINTENANCE AND

SERVICING

 Proceduresnotspecically

explained in this manual
must be performed only by a

qualiedtechnician.

every work session remove sawdust

from the motor vents. Prevent wood,

dust and debris from accumulating

in the working area. Keep the Saw

Blade (18) clean and sharp. A sharp

blade will minimize stalling and kick-

back.

TO PREVENT

SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch of the
tool to its “OFF” position and
unplug the tool from its
electrical outlet before
performing any inspection,
maintenance, or cleaning
procedures.

TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE:
Do not use damaged
equipment. If abnormal noise
or vibration occurs, have the
problem corrected before
further use.

3. WARNING! If the supply cord of

this power tool is damaged, it must

bereplacedonlybyaqualied

service technician.

Cleaning, Maintenance, and

Lubrication

BEFORE EACH USE,1. inspect the

general condition of the tool. Check
for loose hardware, misalignment or
binding of moving parts, cracked or
broken parts, damaged electrical wir­ing, and any other condition that may
affect its safe operation.

AFTER USE: 2. Remove all sawdust
that has accumulated around the
Blade Guard (21), the Motor (1) and
the Motor Housing (36). Regularly
clean the work surface with a vacuum
cleaner or a dry brush. At the end of

SKU 42307 For technical questions, please call 1-800-444-3353. Page 9

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.

PARTS LIST

Part Description Qty.

1 Motor 1

2 Washer 4

3 Locking Nut 2

4 Driving Pulley 1

5 Timing Belt 1

6 Switch 1

7 Belt Cover 1

8 Handle 1

9 Vise 1

10 Base 1

11 Vise Handle 1

12 Driving Pulley 1

13 Screw 1

14 Bearing 1

Part Description Qty.

23 Nut 1

24 Clamp 1

25 Vise Jaw 1

26 Spacer 1

27 Safety Lever 1

28 Spring 1

29 Pin 1

30 Ring 2

31 Motor Housing A 1

32 Cord Clamp 1

33 Screw 2

34 Cord Cover 1

35 Cord with Plug 1

36 Motor Housing B 1

15 Spindle 1

16 Arbor 1

18 HSS Saw Blade 1

19 Washer 1

20 Screw 1

21 Blade Guard 1

22 Vise Fixture 1

37 Screw 6

38 Vibration Absorber 1

39 Busing 1

40 Screw 1

41 Spring 1

42 Hex Wrench 1

SKU 42307 For technical questions, please call 1-800-444-3353. Page 10

ASSEMBLY DIAGRAM

Record Product’s Serial Number Here:

Note: If product has no serial number, record month and year of purchase instead.

Note: Some parts are listed and shown for illustration purposes only, and are not avail-

able individually as replacement parts.

SKU 42307 For technical questions, please call 1-800-444-3353. Page 11

LIMITED 90 DAY WARRANTY

Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this prod­uct is free from defects in materials and workmanship for the period of 90 days from
the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities,
criminal activity, improper installation, normal wear and tear, or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property, or for incidental,
contingent, special or consequential damages arising from the use of our product. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESS­LY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the com­plaint must accompany the merchandise. If our inspection veries the defect, we will ei­ther repair or replace the product at our election or we may elect to refund the purchase
price if we cannot readily and quickly provide you with a replacement. We will return re­paired products at our expense, but if we determine there is no defect, or that the defect
resulted from causes not within the scope of our warranty, then you must bear the cost
of returning the product.

This warranty gives you specic legal rights and you may also have other rights

which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]

REV 10f

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