English 13
5.1.2 Use of extension cords
WARNING
A damaged supply cord presents a hazard! Do not touch the supply cord or extension cord if damaged
while working. Disconnect the supply cord plug from the power outlet.
▶ Check the appliance’s supply cord at regular intervals and have it replaced by a qualified specialist if
found to be damaged.
• Use only extension cords of a type approved for the application and with conductors of adequate
cross-section. Otherwise the performance of the appliance may be affected and the cord may overheat.
• Regularly check the extension cord for damage.
• Replace damaged extension cords.
• When working outdoors, use only extension cords that are approved and correspondingly marked for
this application.
Recommended minimum conductor cross-sections and maximum power cord lengths for 120V sup-
ply voltage
Power cord AWG 16 AWG 14 AWG 12 AWG 10
Conductor cross-section 1,31 mm² 2,08 mm² 3,31 mm² 5,26 mm²
Conductor cross-section 2,58 kcmil 4,11 kcmil 6,53 kcmil 10,4 kcmil
Power cord length 25 m 30 m 50 m 100 m
Power cord length 75 ft 100 ft 150 ft 250 ft
5.1.3 Checking the portable residual current device (PRCD)
DCH 300–X
1. Plug the power tool’s supply cord into a grounded power outlet.
2.
Press the ON button on the portable residual current device.
◁ The indicator shows.
3.
Press the Test button on the portable residual current device.
◁ The indicator goes out.
▽ The indicator does not goes out.
▶ Do not use the power tool. Have it repaired by a qualified specialist using genuine Hilti spare
parts.
Printed: 02.02.2018 | Doc-Nr: PUB / 5398464 / 000 / 00
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