DD AF-CA Printed: 22.05.
Printed: 22.05.
DD AF-CA Original operating instructions Printed: 22.05.
Printed: 22.05.
1 Information about the documentation 1.1 • • • About this documentation Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product. Observe the safety instructions and warnings in this documentation and on the product. Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons. 1.2 Explanation of symbols used 1.2.
Service indicator 1.3.2 Product-dependent symbols The following symbols can be used on the product: Alternating current Rated speed under no load Diameter Revolutions per minute Wireless data transfer 1.4 Product information products are designed for professional users and only trained, authorized personnel are permitted to operate, service and maintain the products. This personnel must be specifically informed about the possible hazards.
▶ ▶ ▶ ▶ ▶ Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts.
Operate power tool by insulated grasping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock. Wear hearing protection when diamond drilling. Exposure to noise can cause hearing loss. When the bit is jammed, stop applying downward pressure and turn off the tool.
▶ prepared and approved supply cord available from Hilti Customer Service. Check extension cords at regular intervals and replace them if found to be damaged. Do not touch the supply cord or extension cord if it is damaged while working. Disconnect the supply cord plug from the power outlet. Damaged supply cords or extension cords present a risk of electric shock. Never operate the machine when it is dirty or wet.
3 Description 3.1 Parts and operating controls @ ; = % 6 Water flow regulator on the diamond core drilling machine Hose connection to the diamond core drilling machine Water supply connection Drilling feed unit English Printed: 22.05.
3.2 @ ; = 3.3 Control panel and display Emergency stop button Service indicator Button and LED: Manual mode % & Button and LED: CUT ASSIST Mode Positioning buttons with LED Intended use The DD AF-CA drilling feed unit, a diamond core drilling machine and a drill stand recommended by Hilti together form an automatic diamond core drilling system suitable for wet core drilling in mineral materials. • • • When in operation, the DD AF-CA must always be mounted on the drill stand.
Service indicator The LED lights up red LED lights up continuously LED does not light up Mode indicator (1) Manual mode button(2) Power indicator (3) CUT ASSIST button (4) / Power setting Disconnect the system from the electricity supply and then reconnect. See the section headed "Troubleshooting". Manual control by hand wheel activated. Automatic control with CUT ASSIST activated. Pressing the button activates manual mode. In manual mode the water is free to flow.
4.2 Rated voltage Rated voltage 110 V Rated current input 0.6 A Rated frequency 50 Hz … 60 Hz 220 V … 240 V 50 Hz … 60 Hz 0.4 A 5 Preparations at the workplace and starting work 5.1 Installing the drilling feed unit 380 V … 415 V 50 Hz … 60 Hz 0.25 A CAUTION Risk of injury Hazard presented by inadvertent starting of the diamond core drilling machine. ▶ The diamond core drilling machine should not be connected to the power supply during set-up.
5.2 Making the electrical connection 1. Remove the protective caps from the socket and the connecting cable. Fit the protective caps into each other in order to keep them clean. 2. Plug the connecting cable into the socket. 5.3 Ensuring supply of cooling water The drilling feed unit and the diamond core drilling machine are water-cooled tools. Make sure that the water inlet of the drilling feed unit's cooling circuit is correctly connected to a water hose at all times during operation.
6.2.3 Depth gage 6.2.4 Automatic break-through detection 6.2.5 Deactivating automatic break-through detection When drilling a blind hole (not all the way through), the drilling feed unit stops the advance movement as soon as the carriage contacts the depth gauge. When through holes are drilled without use of a depth gauge, the core bit feed movement continues until the core bit projects approx. 3 cm out of the exit hole.
6.5 Breaks between work and storage at low temperatures At temperatures below 4 °C (39 °F), the water in the cooling circuit has to be blown out with compressed air when drilling is interrupted for more than one hour and before the equipment is stowed away. In order for the water circuit to be drained, the diamond core drilling machine has to be connected to the electricity supply and to the drilling feed unit. 1. 2. 3. 4. 5. Disconnect the water supply from the drilling feed unit.
Maintenance WARNING Danger of electric shock! Improper repairs to electrical components may lead to serious injuries including burns. ▶ Repairs to the electrical section of the tool or appliance may be carried out only by trained electrical specialists. • • • Check all visible parts and controls for signs of damage at regular intervals and make sure that they all function correctly. Do not operate the product if signs of damage are found or if parts malfunction.
8.2 DD-AF CA is in working order Trouble or fault The LEDs on the drilling feed unit don’t light when the PRCD for the diamond core drilling machine is switched on. The cable cannot be connected to the diamond core drilling machine. Possible cause The plug connector is faulty or dirty. Action to be taken ▶ ▶ The plug connector is dirty. ▶ ▶ ▶ The drilling feed unit can’t be fitted. The hand wheel cannot be rotated. The threaded bushing for the securing screw is blocked.
▶ 10 ▶ Do not dispose of power tools, electronic equipment or batteries as household waste! Manufacturer’s warranty Please contact your local Hilti representative if you have questions about the warranty conditions. English Printed: 22.05.
16 English Printed: 22.05.
Printed: 22.05.
Printed: 22.05.
Printed: 22.05.
Hilti = registered trademark of Hilti Corp., Schaan Printed: 22.05.
