Safety and operating instructions
54 © Construction Tools GmbH | 3390 5201 01 | 2023-05-15
Original Instructions
8.6 Oil escapes between the cylinder cover and the cylinder
Cause Remedy By
Tensioning bolts are loose Check the tensioning bolts and tighten (see chapter Bolt
connections / Tightening torques)
Workshop
Seals damaged Replace the seals Workshop
8.7 Oil escapes from parts of the hydraulic breaker installation
(connecting fittings, hoses etc.)
Cause Remedy By
Connecting fittings are loose;
flange connections to the valve
are loose
Check the connecting fittings and tighten; replace any de-
fective parts if required (see chapter Bolt connections /
Tightening torques)
Check the hydraulic breaker installation and replace any
damaged parts Only use original parts!
Carrier driver or work-
shop
8.8 Oil escapes from the working tool
Cause Remedy By
Lower piston seal defective Dismantle the hydraulic breaker
Replace the seals
Workshop
8.9 Operating temperature too high
Cause Remedy By
Oil level in tank too low Check the oil level and top up oil Carrier driver or work-
shop
Carrier pump delivery too high; a
constant volume of oil is squirted
out of the pressure relief valve
Check carrier engine speed and lower Carrier driver
Check carrier settings and adjust Epiroc Customer
Center / Dealer in
your area
Operation in high outside temper-
ature without oil cooler
Check oil temperature and install an oil cooler if required Workshop or Epiroc
Customer Center /
Dealer in your area
Pressure relief valve defective or
valve with poor characteristic
Fit new type-tested pressure relief cartridges or a more
precise pressure-limiting valve
Workshop
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