Safety and operating instructions
© Construction Tools GmbH | 3390 5203 01 | 2019-08-06
Original Instructions
57
8 Troubleshooting
8.1 The hydraulic breaker does not start
Cause Remedy By
Pressure and tank lines swapped Check the laying of the pressure and
tank lines and connect correctly (see
chapter Making the hydraulic con-
nections )
Carrier driver
Shut-off valve in pressure and/or tank
line closed
Check the shut-off valve and open Carrier driver
Gas pressure in piston accumulator
too high
Check the gas pressure in the piston
accumulator and adjust it to the cor-
rect value (see chapter Checking the
pressure in the piston accumulator
and Release the pressure from the
piston accumulator)
Carrier driver
Oil level in tank too low Check the oil level and top up oil Carrier driver
Defective couplings blocking pressure
and tank lines
Check coupling and replace defective
coupling halves
Workshop
Faults in the electrical system of the
hydraulic breaker installation
Check the electrical system of the hy-
draulic breaker installation and clear
faults
Workshop
Magnet on switch-on valve damaged Replace the magnet Workshop
Operating pressure too low Check the carrier engine speed, the
pump delivery and the pressure relief
valve; check the operating pressure
Adjust settings and replace defective
parts if required
Carrier driver or Epiroc Customer
Center / Dealer in your area
PowerAdapt active Check the engine speed and/or mode
stage of the carrier and lower as re-
quired (see chapter PowerAdapt)
Carrier driver
8.2 Hydraulic breaker operates too slowly
Cause Remedy By
Insufficient hydraulic oil delivery vol-
ume
Check the engine speed and/or mode
stage of the carrier and the operation
pressure and adjust
Carrier driver
The connecting fitting in the pressure
and tank line has come loose
Check the connecting fitting and
tighten
Carrier driver
Shut-off valve in pressure and/or tank
line partly closed
Check the shut-off valve and open Carrier driver
Flow resistance on oil filter or oil cooler
too high
Check the oil filter and oil cooler,
clean or renew them
Carrier driver
Gas pressure in piston accumulator
too high
Check the gas pressure in the piston
accumulator and release some gas if
required (see chapter Checking the
Carrier driver
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