DW830 DW840
English (original instructions) 5 Copyright DeWALT B
16 A 1
DW830 8 6 7 B1 DW840 B2 2
C D 3
E F G H 4
English MEDIUM ANGLE GRINDER DW830/DW840 Congratulations! You have chosen a DeWALT Power Tool. Years of experience, thorough product development and innovation make DeWALT one of the most reliable partners for professional Power Tool users. Technical Data Voltage VAC Power input W Rated speed min-1 Wheel diameter mm Max. wheel width mm Spindle diameter Spindle length mm Weight kg DW830 DW840 220-240 220-240 1400 1800 11000 8000 125 180 6.5 7.0 M14 M14 19 19 3.1 4.
English b) c) d) e) f) g) drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury. Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. Prevent unintentional starting.
English f) Threaded mounting of accessories must match the grinder spindle thread. For accessories mounted by flanges, the arbour hole of the accessory must fit the locating diameter of the flange. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control. g) Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheel for chips and cracks.
English d) Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback. b) Do not position your body in line with and behind the rotating wheel. When the wheel, at the point of operations, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.
English that projects through the plane of the guard lip cannot be adequately protected. • This tool is not designed to be used with wire wheels and wire cup. ARNING: We recommend the use of W a residual current device with a residual current rating of 30mA or less. • Check for damage to the tool, parts or accessories which may have occurred during transport. • Take the time to thoroughly read and understand this manual prior to operation. Description (fig.
English Using an Extension Cable If an extension cable is required, use an approved 3–core extension cable suitable for the power input of this tool (see Technical Data).The minimum conductor size is 1.5 mm2; the maximum length is 30 m. When using a cable reel, always unwind the cable completely.
English cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time. • Be sure the inner and outer flange are mounted correctly.
English • To run the tool, press the lock-off button (2) and the On/Off switch (1). • To stop the tool, release the On/Off switch. WARNING: Do not switch the tool On or Off when under load. Spindle Lock (fig. A) The spindle lock (5) is provided to prevent the spindle from rotating when installing or removing wheels. Operate the spindle lock only when the tool is turned off, unplugged from the power supply, and has come to a complete stop.
English Lubrication Protecting the Environment Your power tool requires no additional lubrication. Cleaning 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. Separate collection. Products and batteries marked with this symbol must not be disposed of with normal household waste.
English GRINDING AND CUTTING ACCESSORY CHART Guard Type Accessory Description Depressed centre grinding disc TYPE 27 GUARD How to Fit Grinder Type 27 guard Flap wheel Backing flange Type 27 depressed centre wheel Threaded clamp nut Backing pad/ sanding sheet Type 27 guard Rubber backing pad Sanding disc Threaded clamp nut Diamond cutting wheels TYPE 27 GUARD Type 27 guard Backing flange Cutting wheel Threaded clamp nut N472227 14 04/2016
