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SKU 66660 

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

Page 12

SpeCIFICatIonS

Electrical Requirements

120 V~ / 60 Hz / 15 A

Power Cord Type

Double Insulated 

Polarized

Motor No Load Speed

 4500 RPM

Blade Diameter

7-¼” Diameter

Arbor Size and Type

5/8” Diamond Type

 

Left Hand Thread

13mm Bolt Head

Maximum Cutting Depth

2-1/2” at 90°

1-3/4” at 45°

Lubricating Oil

Mobil SHC 636 

(15ml) 0.51 Oz.

UnpaCKInG

When unpacking, check to make sure 

that the item is intact and undamaged.  If 

any parts are missing or broken, please 

call Harbor Freight Tools at the number 

shown on the cover of this manual as soon 

as possible.

List of contents

description

Q’ty

Worm Drive Saw

1

Carbide Tipped Blade

1

13mm Arbor Wrench

1

InStrUCtIonS For 

pUttInG Into USe

  read the entIre Important 

SaFetY InFormatIon 

section at the beginning of this 

manual including all text under 

subheadings therein before set 

up or use of this product.

 

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 

assembling or making any 

adjustments to the tool.

note:

  For additional information regarding 

the parts listed in the following pages, 

refer to the Assembly Diagram near 

the end of this manual.

assembly

Before use, you must install the Saw 

1. 

Blade (43).
Be sure the tool is unplugged.

2. 

Press in and hold the Spindle Lock 

3. 

Pin (14).
Using the a 6mm Hex Key, remove 

4. 

the Arbor Bolt (46) and Arbor Wash-

ers (44 and 45). NOTE: The Arbor 

Bolt (46) has left hand threads.
Place the Saw Blade (43) on the 

5. 

Arbor (25). Be sure to match the rota-

tion direction marked on the Blade 

with the arrow embossed on the 

Lower Blade Guard (37). 
Replace the Arbor Washers (44 and 

6. 

45) as shown in the Assembly Dia-

gram.
Replace the Arbor Bolt (46). Tighten 

7. 

securely. 
Before operation make sure that the 

8. 

Spindle Lock (14) is released. Turn 

the blade by hand to check the Spin-

Summary of Contents for 66660

Page 1: ...l Copyright 2009 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 Har...

Page 2: ...he safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE is used to address practices not related to personal injury CAUTION without...

Page 3: ...lt in serious personal injury Use personal protective equip b ment Always wear eye protection Safety equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appropri...

Page 4: ...tained cutting tools with sharp cutting edges are less likely to bind and are easier to control Use only saw blades and acces h sories that have been approved for use with this tool Accessories that m...

Page 5: ...of your blade must be within the capacity rating of your saw Incorrectly sized accessories cannot be adequately guarded or controlled The arbor size of the blade must 10 properly fit the spindle of t...

Page 6: ...tool When using a handheld saw 21 maintain a firm grip on the tool with both hands to resist starting torque When cutting rest the larger por 22 tion of the Base Plate 103 on the supported portion of...

Page 7: ...which cannot be built into this product but must be supplied by the operator Preventing Kick Back Kick back is an extremely dangerous action which can cause serious injury Kick back occurs when the Bl...

Page 8: ...be cleaned with a blade cleaner to re move glue or pitch Damaged blades should be discarded Kick back can be caused by using 11 the wrong blade type for the work material Always read the recom mendati...

Page 9: ...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...

Page 10: ...ding provides a low resistance path to carry electricity away from the user reducing the risk of electric shock See 3 Prong Plug and Outlet The grounding prong in the plug is 2 connected through the g...

Page 11: ...ou are using one extension cord 5 for more than one tool add the nameplate amperes and use the sum to determine the required minimum cord size See Table A If you are using an extension cord 6 outdoors...

Page 12: ...bheadings therein before set up or use of this product 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...

Page 13: ...gger 79 Handle 77 81 Carbon Brush Cover 72 Cam Lever 88a Lower Blade Guard 37 Rotation Direction Marking Arbor Bolt and Wash ers 44 46 Base Plate 103 Depth Gauge Scissor Hinge 105 Lower Blade Guard Le...

Page 14: ...n 7 ally require maintenance and can be accessed through the Carbon Brush Covers 72 Operating Instructions Read the entire Important Safety Information section at the beginning of this manual includin...

Page 15: ...g Secure loose work pieces using a 3 vise or clamps not included to pre vent movement while working There must not be hazardous ob 4 jects such as utility lines or foreign objects nearby that will pre...

Page 16: ...tting 13 Guide 108 109 Slide the Cutting Guide 108 through 14 the Base Plate 103 and secure in position using the Thumb Screw 93 Align the Cutting Guide Fence 109 15 with the edge of the work piece an...

Page 17: ...ion of the Lower Blade Guard and adjust or repair if needed After Use 4 clean external surfaces of the tool with clean cloth Carbon Brush Maintenance 5 The carbon brushes may require maintenance when...

Page 18: ...Check condition of Carbon Brushes replace 1 if necessary Check condition of cord and repair if 2 necessary Saw Blade will not turn Spindle Lock 14 may be 1 engaged Press it to release If it won t rele...

Page 19: ...Ferrule 1 35 Fixed Blade Guard Bolt m8 x 40 1 36 Lower Blade Guard Spring 1 37 Lower Blade Guard 1 38 Lower Blade Guard Lever 1 39 Rivets m4 4 Parts List Part Description Qty 40 Lower Blade Guard Bea...

Page 20: ...Axle 1 103 Base Plate 1 104 Flat Head Screws m5 x 9 4 105 Depth Guide Scissor Hinge 1 106 Depth Guide Hinge Bracket 1 107 Depth Hinge Guide Pin 1 108 Cutting Guide 1 109 Cutting Guide Fence 1 110 Carb...

Page 21: ...SKU 66660 For technical questions please call 1 800 444 3353 Page 21 ASSEMBLY DIAGRAM...

Page 22: ...ontingent 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 ex...

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