Problem
Cause
Solution
(the hammer must be taken to
an authorized workshop)
The hammer stops after
few blows after being re-
installed.
Dirt
entered
into
the
hammer
through
the
rubber hoses.
Take down the hammer, clean and
eventually change the damaged
components.
Oil leaking from the tool.
Seals are worn out. Marks on
the piston surface.
Replace seals and the other
damaged parts.
The hammer beats with a
weak penetration force
and there are too many
vibrations on the high
pressure rubber hose.
The accumulator has lost the
pre-charge or the diaphragm
is broken.
Restore the correct pressure.
In other cases, replace the
diaphragm and restore the right
nitrogen pressure.
The hammer increases the
number of blows, but the
power decreases.
The tool support seat (support
ring) is worn out. The piston
shortens the stroke.
Make sure that the tool support seat
(support ring) is intact. So proceed
as follows:
1) Lay the hammer on the ground
and trace a mark on the tool at the
level of the bush end.
2) Remove the tool and make sure
that the value between the mark and
the plate end of the tool is lower or
equivalent to the one indicated in the
technical specifications. If it is
higher, it is necessary to change the
support ring immediately.
CLEANING, MAINTENANCE AND CHECKS
22
Page
of 33
5
Nederland B.V.
