7 Troubleshooting
34
OM Hydraulic Stone and Concrete Splitter, Version 1.0 04/2010
Error:
Wedge does not
extend or retract -
Hydraulic aggre-
gate increases
pressure to
50 MPa.
Error:
Wedge moves in
one direction very
slowly.
Error:
Hydraulic aggre-
gate does not
achieve pressure of
50 MPa - Pressure
limitation valve
does not work
7 Troubleshooting
Yes
Yes
Yes
No
Yes
No
Clean pressure limi-
tation valve or re-
place O-ring
3390 0130 00.
Portable
aggregate:
Hydraulic hose be-
tween pump and
pressure limitation
valve leaky?
Yes
No
No
No
No
Wedge has been
ripped off in the
area of the piston
pin?
(
¹
Ch. 4.3).
Spring
3390 0112 00 in the
control valve of the
splitter has bro-
ken?.
Quick-release
coupling does not
have a passageway
- Directly connect
hose.
Replace wedge
(
¹
Ch. 6).
Replace spring
3390 0112 00.
Contamination or
defective O-ring
3390 0130 00 in
pressure limitation
valve?
Replace complete
valve seat
3390 0131 00 in
pressure limitation
valve – Pressure
50 MPa?
Tighten and/or
service hose con-
nections.
Replace O-ring
3391 0128 00 –
Pressure 50 MPa?
Replace pump
element
3391 0115 85.
Service or replace
the control valve
3390 0110 82 of the
splitter.
Connect replace-
ment splitter:
Pressure 50 MPa?
No
No
Error:
Hydraulic aggre-
gate does not build
up pressure.
