Hilti DD 150?U Operating Instructions Manual page 12

Hand-guided, dry, PCM
Gear
1
2.4 Status indicator
LED indicators
Theft protection indicator (11)
Service indicator (12)
Drilling performance indicator (13)
(only in conjunction with the drill
stand)
NOTE
When using the machine for hand-guided coring, the drilling performance indicator gives no indication of the optimum
pressure.
2.5 TPS theft protection system (optional)
The machine may be optionally equipped with the TPS theft protection system. If equipped with this feature, the
machine can be unlocked and made ready for operation only through use of the corresponding TPS key.
2.6 Items supplied as standard
1 Machine
1 Operating instructions
1 Hilti toolbox or cardboard box
2.7 Using extension cords
Use only extension cords of a type approved for the application and with conductors of adequate gauge.
Recommended minimum conductor gauge (cross section) and max. cable lengths
Conductor cross section
Mains voltage 120 V
Mains voltage 127 V
Do not use extension cords with AWG 14 gauge conductors. Use only extension cords equipped with an earth
conductor.
2.8 Using a generator or transformer
This machine may be powered by a generator or transformer when the following conditions are fulfilled: The unit must
provide a power output in watts of at least twice the value printed on the type identification plate on the machine. The
operating voltage must remain within +5% and -15% of the rated voltage at all times, frequency must be in the 50 – 60
Hz range and never above 65 Hz, and the unit must be equipped with automatic voltage regulation and starting boost.
Core bit diameters
(mm)
52...162
State
Blinking yellow light
Red light and the machine
starts
Red light and the machine
doesn't start
Blinking red light
Orange light
Green light
Red light
AWG12
75 ft
75 ft
Core bit diameters
(inches)
2...6¹⁄₄
Description / information
The machine's theft protection system
is active and must be unlocked with the
TPS key.
The carbon brushes are badly worn.
After the lamp lights for the first time,
the machine may continue to be used
for several hours before the automatic
cut-out is activated. Have the carbon
brushes changed in good time so that
the machine is always ready for use.
The carbon brushes must be changed.
Temporary fault, see Troubleshooting
section.
Contact pressure too low
Optimum contact pressure
Contact pressure too high
AWG10
125 ft
125 ft
Speed under no load
/min
780
5
en