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12

12

WARNING: 

Ensure the saw is mounted firmly to a stable flat surface. 

Failure to do so could cause the saw to be unstable and fall causing 

personal injury. 
  4. Place the workpiece to be cut on top of the platform mounted to the 

table. Ensure the workpiece is firmly against the back of the base 

fence (O) (fig. 28B). 

  5. Secure the material before cutting. Cut slowly through the material 

using a out-down-and-back motion. Failure to clamp securely or cut 

slowly could result in the material coming loose and causing injury.

After several cuts are made at various mitre angles other than 0º, the 

platform may weaken and not properly support the work. Install a new, 

unused platform to the saw after presetting the desired mitre angle.

CAUTION:

 Continued use of a platform with several kerfs may cause 

loss of material control and possible injury. 

MAINTENANCE

DO NOT use lubricants or cleaners (particularly spray or aerosol) in the 

vicinity of the plastic guard. The polycarbonate material used in the guard 

is subject to attack by certain chemicals.
  1.  All bearings are sealed. They are lubricated for life and need no 

further maintenance.

  2.  Periodically clean all dust and wood chips from 

around AND UNDER the base and the rotary table. 

Even though slots are provided to allow debris to 

pass through, some dust will accumulate.

  3. The brushes are designed to give you several years 

of use. If they ever need replacement follow the 

Brushes

 instructions or return the tool to the nearest 

service center for repair. Service center locations 

are packed with your tool. 

Brushes (fig. 1)

Inspect carbon brushes regularly. Keep brushes clean 

and sliding freely in their guides.
  •  Unplug tool, remove the motor end cap (F), lift the 

brush spring and withdraw the brush assembly. 

  •  If the brushes are worn down to approximately 

12.7 mm (1/2"), the springs will no longer exert 

pressure and they must be replaced. 

  •  Use only identical D

E

WALT brushes. Use of the 

correct grade of brush is essential for proper 

operation of electric brake. New brush assemblies 

are available at D

E

WALT service centres. 

  •  Always replace the brush inspection cap after 

inspection or servicing the brushes.

  •  The tool should be allowed to “run in” (run at 

no load) for 10 minutes before use to seat new 

brushes. The electric brake may be erratic in 

operation until the brushes are properly seated (worn 

in). 

  •  While “running in” DO NOT TIE, TAPE, OR OTHER-

WISE LOCK THE TRIGGER SWITCH ON. HOLD BY 

HAND ONLY.

Cleaning

Before use, carefully check the upper guard, lower guard 

and dust duct to determine that they will operate properly. 

Ensure that chips, dust or workpiece particles do not 

block of one of the functions.

In case of workpiece fragments jammed between the saw blade and 

guards, disconnect the machine from the power supply and follow the 

instructions given in 

Changing or Installing a New Saw Blade

. Remove 

the jammed parts and reassemble the saw blade.
Periodically clean all dust and wood chips from around AND UNDER the 

base and the rotary table.

WARNING:

 Blow dirt and dust out of the main housing with dry air as 

often as dirt is seen collecting in and around the air vents. Wear approved 

eye protection and approved dust mask when performing this procedure. 

WARNING: 

Never use solvents or other harsh chemicals for cleaning 

the non-metallic parts of the tool. These chemicals may weaken the 

materials used in these parts. Use a cloth dampened only with water and 

mild soap. Never let any liquid get inside the tool; never immerse any part 

of the tool into a liquid.

WORKLIGHT CLEANING

  •  Carefully clean sawdust and debris from worklight lens with a cotton 

swab. Dust build-up can block the worklight and prevent it from 

accurately indicating the line of cut.

  •  DO NOT use solvents of any kind; they may damage the lens. 
  •  With blade removed from saw, clean pitch and build-up from blade. 

DUST DUCT CLEANING

With the saw unplugged and the saw head raised fully, low pressure air or 

a large diameter dowel rod can be used to clear the dust out of the dust 

duct.

Service Information

Please have the following information available for all service calls: 
Model Number ________________ Serial Number _________________ 

Date and Place of Purchase __________________________________

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and 

adjustment should be performed by a D

E

WALT factory service center, a 

D

E

WALT authorized service center or other qualified service personnel. 

Always use identical replacement parts.

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

Содержание DWS780-XE

Страница 1: ...DWS780 XE 305 mm 12 DOUBLE BEVEL SLIDING COMPOUND MITER SAW INSTRUCTION MANUAL ...

Страница 2: ......

Страница 3: ...sly close to the blade within 6 It is safer than using your hand and it frees both hands to operate tool DON T OVERREACH Keep proper footing and balance at all times Loss of balance may cause personal injury MAINTAIN TOOLS WITH CARE Keep tools sharp and clean for best and safest performance Follow instructions for lubricating and changing accessories Poorly maintained tools and machines can furthe...

Страница 4: ...THIS PLATE WHEN DAMAGED Small chip accumulation under the saw may interfere with the saw blade or may cause instability of workpiece when cutting USE ONLY BLADE CLAMPS specified for this tool to prevent damage to the machine and or serious injury CLEAN THE MOTOR AIR SLOTS of chips and sawdust Clogged motor air slots can cause the machine to overheat damaging the machine and possibly causing a shor...

Страница 5: ... supply cord If the supply cord is damaged it must be replaced by the manufacturer or an authorised DEWALT Service Centre in order to avoid a hazard Accessories WARNING Since accessories other than those offered by DEWALT have not been tested with this product use of such accessories with this tool could be hazardous To reduce the risk of injury only DEWALT recommended accessories should be used w...

Страница 6: ...e width of the saw OO DW7025 Clamp brackets The clamp brackets are used for mounting the saw to a stand SAW BLADES ALWAYS USE 305 mm 12 SAW BLADES WITH EITHER 1 25 4 mm OR 5 8 15 88 mm ARBOR HOLES SPEED RATING MUST BE AT LEAST 4800 RPM Never use a smaller diameter blade It will not be guarded properly Use crosscut blades only Do not use blades designed for ripping combination blades or blades with...

Страница 7: ...screws don t protrude from the bottom of the wood The plywood must sit flush on the work support When clamping the saw to any work surface clamp only on the clamping bosses where the mounting screw holes are located Clamping at any other point will interfere with the proper operation of the saw CAUTION To prevent binding and inaccuracy be sure the mounting surface is not warped or otherwise uneven...

Страница 8: ...erate the override bevel the saw slightly to the left 45 BEVEL STOP OVERRIDE FIG 12 There are two bevel stop override levers one on each side of the saw To bevel the saw left or right past 45 push the 45 bevel override lever A1 rearward When in the rearward position the saw can bevel past these stops When the 45 stops are needed pull the 45 bevel override lever forward CROWN BEVEL PAWLS FIG 12 Whe...

Страница 9: ...e maximum rotation speed of the tool must not exceed that of the saw blade Do not use any abrasive blades 7 2 Place a square against the saw s fence and blade as shown Do not touch the tips of the blade teeth with the square To do so will cause an inaccurate measurement 3 If the saw blade is not exactly perpendicular to the fence loosen the four screws WW that hold the mitre scale S and move the m...

Страница 10: ... table and the fence when cutting Keep hands in position until the trigger has been released and the blade has completely stopped ALWAYS MAKE DRY RUNS UNPOWERED BEFORE FINISH CUTS SO THAT YOU CAN CHECK THE PATH OF THE BLADE DO NOT CROSS HANDS AS SHOWN IN Figure 17B Keep both feet firmly on the floor and maintain proper balance As you move the mitre arm left and right follow it and stand slightly t...

Страница 11: ...f the blade during the cut Use the material clamp KK provided with your saw Other aids such as spring clamps bar clamps or C clamps may be appropriate for certain sizes and shapes of material The left or right fence will slide from side to side to aid in clamping TO INSTALL CLAMP 1 Insert it into the hole behind the fence The clamp should be facing toward the back of the mitre saw The groove on th...

Страница 12: ... Right side Bevel right 33 9 Mitre table set at left 31 62 Save right end of cut Bevel left 33 9 Mitre table set at right 31 62 Save right end of cut FIG 24A N Q Q N FIG 24B II FIG 25A SS N FIG 25B SS N Set your saw to the prescribed angles and make a few trial cuts Practise fitting the cut pieces together Example To make a 4 sided box with 26º exterior angles Angle A fig 22 use the upper right ar...

Страница 13: ...own in figure 26A and never like that shown in figure 26B Positioning the material incorrectly will cause it to pinch the blade CUTTING PLASTIC PIPE OR OTHER ROUND MATERIAL Plastic pipe can be easily cut with your saw It should be cut just like wood and clamped or held firmly to the fence to keep it from rolling This is extremely important when making angle cuts CUTTING LARGE MATERIAL FIG 1 27 Occ...

Страница 14: ...s Wear approved eye protection and approved dust mask when performing this procedure WARNING Never use solvents or other harsh chemicals for cleaning the non metallic parts of the tool These chemicals may weaken the materials used in these parts Use a cloth dampened only with water and mild soap Never let any liquid get inside the tool never immerse any part of the tool into a liquid WORKLIGHT CLE...

Страница 15: ...COMPOUND MITER CUT POSITION WOOD WITH BROAD FLAT SIDE ON THE TABLE AND THE NARROW EDGE AGAINST THE FENCE SET THIS MITER ANGLE ON SAW ANGLE OF SIDE OF BOX ANGLE A S Q U A R E B O X 6 S I D E D B O X MITER DEGREE SETTING BEVEL DEGREE SETTING SET THIS BEVEL ANGLE ON SAW 8 S I D E D B O X ...

Страница 16: ... dewalt com au www dewalt com nz SEP11 Part No N137372 DWS780 XE Copyright 2011 DEWALT The following are trademarks for one or more DEWALT power tools the yellow and black color scheme the D shaped air intake grill the array of pyramids on the handgrip the kit box configuration and the array of lozenge shaped humps on the surface of the tool ...

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