Page 3
When servicing, only authentic Hilti replacement example: pipes, radiators, ranges, refrigerator Don’t Overreach parts should be used. Replace cord only with HILTI enclosures. Use only power supply matching the Keep proper footing and balance at all times, and DD 100 GFCI cord. Test after replacement.
Speed selector switch Note: Switch should be fully depressed when DD100 MEC is in continuous operation! Standard equipment – DD100MEC tool with built-in ground fault interruptor Do not use this product in any way other than – BI-chuck as directed by these operating instructions.
1.Plug the GFCI into a 120VAC grounded receptacle. off. 4. Do not use the DD100 MEC if the GFCI fails this test. Return to Hilti for servicing. Printed: 07.07.2013 | Doc-Nr: PUB / 5069504 / 000 / 00...
DD100MEC motor, but not eliminate them. A DD100MEC motor which has become wet must be Vacuum pump serviced by the specialists at a Hilti centre. Warning: A properly functioning water collector must be used for overhead coring. A leaky extrac- tion device or sealing disc must be replaced immediately.
Note: The life of the sealing discs can be extend- Use only original Hilti parts. ed by appplying a little grease e.g. bearing grease Protect the motor unit from water spray and or Hilti lubricant spray.
Water collector Fitting a core bit Procedure in the event of the core bit sticking The slip clutch will be activated if the core bit sticks.The power tool must then be switched off by the operator. To release the core bit, proceed as follows: Using an open-end wrench to release the core 1.
Page 9
250 N (50 lbs). Insufficient pressure can lead to polishing of the segments and reduced coring performance. Polished/blunt core bits can be resharpened e.g. using the Hilti sharpening plate. Printed: 07.07.2013 | Doc-Nr: PUB / 5069504 / 000 / 00...
Drilling rig To avoid damage to the system and to ensure trou- Hilti warrants that the tool supplied is free of ble-free operation, the following parts must be defects in material and workmanship. This cleaned and oiled or greased after finishing work: warranty is valid so long as the tool is oper- –...
Need help?
Do you have a question about the DD100 MEC and is the answer not in the manual?
Questions and answers