Safety and operating instructions
20 © Construction Tools PC AB | 9800 0908 01 | 2023-05-12
Original Instructions
7 Maintenance
It is essential that regular maintenance is performed to
maintain the breakers maximum efficiency.
Equipment that is insufficiently maintained can be dan-
gerous for both the operator and persons near the
breaker. Make sure that regular maintenance routines
with lubrication are followed to keep the equipment safe
and efficient.
7.1 Cleaning
NOTICE Environmental damage due to polluted water
Hydraulic oil and chisel paste are environmentally harm-
ful and must not penetrate the ground or enter the water
table or water supplies.
u Collect the water used for cleaning if it has been con-
taminated by hydraulic oil and chisel paste.
u Dispose of the water in accordance with the applica-
ble regulations to avoid environmental hazards.
7.2 Every second hour
Regularly lubricate the working tool, the tool retainer and
the bushings.
7.2.1 Lubricating with a grease gun
WARNING Hot working tool during operation and
a period of time after use
u Avoid contact with the working tool.
WARNING Hot hydraulic breaker during operation
and a period of time after use
u Avoid contact with the hydraulic breaker.
CAUTION Skin eczema
Grease can cause eczema if it comes in contact with the
skin.
u Avoid getting grease on your hands. Wash thor-
oughly after contact.
1.
Press the working tool all the way into the breaker up
to the stop(A). Otherwise the space between the top
of the working tool and the piston will be filled with
grease, and damage can occur to seals, piston, and
cylinder.
2.
Lubricate the working tool's shank plentifully during
all upward operations. The bushing and the working
tool must be lubricated so frequently that dirt cannot
penetrate into the hydraulic breaker.
When the working tool is exposed to high pressure and
high temperatures a standard type of grease will melt
and run. To avoid this always use Epiroc chisel paste.
7.2.2 Central lubrication system
We recommend Epiroc's central lubrication system.
When this system is fitted on the carrier, grease is
pumped continuously from a lubrication container on the
carrier to the hydraulic breaker when the hydraulic
breaker is activated. This increases the life of the tool
bushings and working tools considerably.
7.3 Every day
n
Check tool retainers and lock pins for damage,
change if necessary.
n
Check that hoses, couplings, and accumulator are in
a good condition, change if necessary.
n
Check that bolts and connections are free from dam-
age and properly tightened, change if damaged. See
tightening torques in the spare parts list.
n
Refill the central lubricating system.
7.4 Every week
n
Clean the hydraulic breaker carefully.
n
Check the wear bushing's wear and maximum inner
wear limits.
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