Intended Use - Hilti DD AF-CA H Manual De Instrucciones Original

Keep all safety precautions and instructions for future reference.
The term "power tool" used in the safety precautions refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
General safety instructions
▶ When you operate the drilling system with auto-feed unit, always secure the drill stand by means
of anchors. The use of a vacuum pump is not permissible. When the auto-feed unit is operating in
automatic mode, the vacuum base plate can become detached if the vacuum unexpectedly drops below
the specified range.
▶ Keep the power tool out of reach of children.
▶ Remove the hand wheel when you are going to operate the drilling system with the auto-feed unit.
When the auto-feed unit is operating in automatic mode, the hand wheel tends to turn and can lead to
injuries or cause cables or hoses to become wrapped around it.
▶ Make sure that the power tool is correctly and securely mounted on the drill stand. The auto-feed
unit has to be engaged at one of the keyed positions and it must be secured with the securing screw.
Additional safety instructions
▶ Make sure that the supply cord cannot be damaged as the carriage advances.
▶ On account of the drilling system's dead weight, as soon as the carriage lock is disengaged the
drilling system can glide down the drill stand without any braking effect by the installed auto-feed
unit. Be prepared for this and hold the drilling system in place with one hand.
▶ If the drill stand has not been fastened correctly, always move the drilling system with installed
core bit all the way down in order to prevent the stand from falling over.
▶ Keep the supply cord, extension cord and water hoses away from rotating parts.
3 Description
3.1 Components and controls
3.2

Intended use

The DD AF-CA H auto-feed unit, a type DD 250-CA diamond core drilling machine and a type DD-HD 30
drill stand together form a diamond core drilling system suitable for wet core drilling in mineral materials.
The auto-feed unit is operated via the display of the diamond core drilling machine.
• In operation, the auto-feed unit must be mounted on the drill stand.
• For operation with the auto-feed unit, the drilling system must be secured exclusively by the anchor base
plate, not by the vacuum base plate.
• The auto-feed unit has to be removed to permit manual drilling with control by the hand wheel.
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Emergency stop
Carrying handle
Holder for supply cord
Supply cord
Mounting interface with square shaft
Rating plate
Cooling water connection (to the diamond
core drilling machine)
Cooling water connection to water supply
Securing screw
English 17