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DeWALT DWS780 User Manual

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TABLE 1: COMPOUND MITER CUT 
(POSITION WOOD WITH BROAD FLAT SIDE ON THE TABLE AND THE NARROW EDGE AGAINST THE FENCE)
SET THIS MITER ANGLE ON SA
W
ANGLE OF SIDE OF BOX (ANGLE A)
SQUARE BOX
6-SIDED BOX
SET THIS BEVEL ANGLE ON SAW
8-SIDED BOX
Troubleshooting Guide
BE SURE TO FOLLOW SAFETY RULES AND INSTRUCTIONS
TROUBLE!
WHAT’S WRONG?
WHAT TO DO
Saw will not start
  1. Saw not plugged in
  1. Plug in saw.
  2. Fuse blown or circuit breaker tripped
  2. Replace fuse or reset circuit breaker.
  3. Cord damaged
  3. Have cord replaced by authorized service center.
  4. Brushes worn out
  4. Have brushes replaced by authorized service center or replace them yourself. Refer to Brushes. 
Saw makes 
unsatisfactory cuts
  1. Dull blade
  1. Replace blade. Refer to Changing or Installing a New Saw Blade. 
  2. Blade mounted backwards
  2. Turn blade around. Refer to Changing or Installing a New Saw Blade. 
  3. Gum or pitch on blade
  3. Remove blade and clean with coarse steel wool and turpentine or household oven cleaner.
  4. Incorrect blade for work being done
  4. Change the blade type. Refer to Saw Blades under Optional Accessories. 
Blade does not come up to 
speed
  1. Extension cord too light or too long
  1. Replace with adequate size cord. Refer to Use Proper Extension Cord under Important Safety 
Instructions. 
  2. Low house current
  2. Contact your electric company.
Machine vibrates excessively
  1. Saw not mounted securely to stand or work 
bench
 1.  
Tighten all mounting hardware. Refer to Bench Mounting. 
  2. Stand or bench on uneven floor
  2. Reposition on flat level surface. Refer to Familiarization. 
  3. Damaged saw blade
  3. Replace blade. Refer to Changing or Installing a New Saw Blade. 
Does not make accurate 
miter cuts
  1. Miter scale not adjusted correctly
  1. Check and adjust. Refer to Miter Scale Adjustment under Adjustments. 
  2. Blade is not square to fence
  2. Check and adjust. Refer to Miter Scale Adjustment under Adjustments. 
  3. Blade is not perpendicular to table
  3. Check and adjust fence. Refer to Bevel Square to Table Adjustment under Adjustments. 
  4. Workpiece moving
  4. Clamp workpiece securely to fence or glue 120 grit sandpaper to fence with rubber cement.
Material pinches blade
  1. Cutting bowed material
  1. Refer to Bowed Material under Special Cuts.