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SKU 90891

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

job better and more safely at the rate for which it was intended.  Do not modify 

this product, and do not use this product for a purpose for which it was not in-

tended.

Always turn off the Miter Saw and unplug the Power Cord from its electrical 

outlet before changing accessories or performing any inspection, mainte-

nance, or cleaning procedures.

WARNING:  Some dust created by 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 cement 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 exposure to these chemicals: work in a well ventilated 

area, and work with approved safety equipment, such as those dust masks that 

are specially designed to filter out microscopic particles. (California Health & 

Safety Code § 25249.5, 

et seq.

)

People with pacemakers should consult their physician(s) before use.  Electro-

magnetic fields in close proximity to heart pacemaker could cause pacemaker 

interference or pacemaker failure.
The warnings, precautions, and instructions discussed in this manual cannot 

cover all possible conditions and situations that may occur.  The operator must 

understand that common sense and caution are factors which cannot be built into 

this product, but must be supplied by the operator.
Only lock the Motor Housing in the lock down position for carrying or storing the 

Miter Saw.  Never attempt to cut with the Miter Saw when the Motor Housing is in 

the lock down position.

gROUNDINg

Improperly connecting the grounding wire can result in 

electric shock.

Check with a qualified electrician if you are in doubt as to 

whether the outlet is properly grounded.  Do not modify 

the power cord plug provided with the tool.  Never remove 

the grounding prong from the plug.  Do not use the tool if 

the power cord or plug is damaged.  If damaged, have it 

repaired by a service facility before use.  If the plug will not 

fit the outlet, have a proper outlet installed by a qualified 

electrician.

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WARNINg

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Summary of Contents for 90891

Page 1: ...n Oaks Blvd Camarillo CA 93011 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 200...

Page 2: ...fle Plate Screw Qty 1 Carbon Brushes Qty 2 Dust Collect Bag Qty 1 SAVE THIS MANUAL You will need this manual for the safety warnings and precautions assembly operating inspection maintenance and clean...

Page 3: ...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 n...

Page 4: ...piece to a stable platform Holding the work by hand or against your body is unstable and may lead to loss of control Do not force the tool Use the correct tool for your application The correct tool wi...

Page 5: ...mmable chemicals dusts and vapors Do not use this product in a damp or wet location Maintain labels and nameplates on the Miter Saw These carry important information If unreadable or missing contact H...

Page 6: ...ways to hold and support the workpiece Do not attempt to cut material that does not have a flat surface unless a suitable support is used Turn off the Miter Saw and allow the Saw Blade to stop on its...

Page 7: ...o filter out microscopic particles California Health Safety Code 25249 5 et seq People with pacemakers should consult their physician s before use Electro magnetic fields in close proximity to heart p...

Page 8: ...all codes and ordinances The plug and outlet should look like those in the following illustration See 3 Prong Plug and Outlet 3 Prong Plug and Outlet Outlets for 2 Prong Plug Double Insulated Tools T...

Page 9: ...le for outdoor use Make sure the extension cord is properly wired and in good electrical condition Always replace a damaged extension cord or have it repaired by a qualified elec trician before using...

Page 10: ...o Assemble The Accessories WARNING Prior to performing any assembly procedures make sure the Power Cord of the Miter Saw is unplugged from its electrical outlet The Miter Saw comes with several access...

Page 11: ...ece Holder 149 and locked in place with a Wing Screw 152 Once attached and locked in place the Baffle Plate allows you to make repeated cuts of the same length To do so loosen the Wing Screw 148 that...

Page 12: ...ench To Remove Install A Saw Blade WARNING Prior to performing this procedure make sure the Miter Saw is un plugged from its electrical outlet When replacing a Saw Blade 51 make sure the new Saw Blade...

Page 13: ...SHAFT LOCK 1 FIGURE I HANDLE COVER 40 SAFETY COVER 58 SAFETY BUTTON 16 SWITCH LEVER 25 Press in and hold the Shaft Lock 1 to keep the Spindle 35 from turning See Figure I Use the accessory Hex Socket...

Page 14: ...GE HEAD BOLT 61 FLANGE 52 FIGURE J BLADE CASE 43 ARROW SAW BLADE 51 ARROW FIGURE K Remove the old Saw Blade 51 Then mount the new Saw Blade on the Spindle 35 making sure the arrow direction on the Saw...

Page 15: ...r 58 to return to its normal downward position See Figure H Lastly check to make sure the Saw Blade 51 does not touch the Turn Base 125 of the Miter Saw See Assy Diagram The Safety Cover For The Saw B...

Page 16: ...lock the Motor Housing in position See Figure N page 18 Note Only lock the Motor Housing in the down position for carrying or storing the Miter Saw Never attempt to cut with the Miter Saw when the Mo...

Page 17: ...w Blade 51 does not pass completely through the Kerf Board 114 lower the Saw Blade slightly by turning the Hex Head Bolt 71 COUNTER CLOCKWISE See Figure M After adjusting the Hex Head Bolt 71 press do...

Page 18: ...KNOB 104 SCALE PLATE 141 TURN BASE 125 GUIDE FENCE 105 FIGURE N Knob 74 The miter angle of a cut may be adjusted 0 45 degrees to the right or left To do so loosen the Fasten Knob 104 located on the Gu...

Page 19: ...E 59 ARM HOLDER 82 FIGURE O Support Screw 138 The bevel angle or Saw Blade tilt capacity may be adjusted from 0 45 degrees to the left To do so loosen the Lock Handle 59 located at the rear of the Mit...

Page 20: ...When the Saw Blade 51 is turning at full speed slowly bring down the Motor Housing 26 to complete the cut NOTE Feed the Saw Blade into the work piece gradually Do not force the machine to remove mater...

Page 21: ...ousing 26 To do so use a standard screwdriver not included to remove the two Carbon Brush Caps 21 Then remove the two Carbon Brushes from the Brush Holders 23 If the Carbon Brushes are worn down more...

Page 22: ...ons please call 1 800 444 3353 REV 05b PARTS LIST Torsion Spring Assy Includes 57 Spindle Sleeve and 58 Safety Cover Note Customer must save old brass sleeve from old Safety Cover and use it when inst...

Page 23: ...Page 23 SKU 90891 For technical questions please call 1 800 444 3353 PARTS LIST CONTINUED REV 04d...

Page 24: ...rposes only and are not avail able individually as replacement parts ASSEMBLY DIAGRAM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41...

Page 25: ...7 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 154 141 142 143 144 145 146 147 148...

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