Safety and operating instructions
© Anbaufräsen PC GmbH | 3390 5221 01 | 2020-09-07
Original Instructions
59
7.13 Checking and cleaning the
hydraulic oil filter of the carrier
An oil filter must be integrated in the return circuit of the
hydraulic system. The maximum mesh width allowed for
the oil filter is 50 microns; it must have a magnetic sepa-
rator.
n
Secure the carrier such that it cannot move unexpect-
edly.
n
Change the oil filter cartridge after the first 50 operat-
ing hours.
n
Check the oil filter every 500 operating hours and re-
place if it is necessary.
7.14 Replace hydraulic hoses
n
Replace the hydraulic hoses:
–
if they are more than six years old.
–
if the outer layer is damaged.
–
if they become brittle or deformed.
–
if the hose fitting is deformed or damaged.
–
if they loosen from the fittings.
WARNING Risk of injury due to high pressure in
the hydraulic circuit
High pressures are present in the hydraulic circuit, which
can cause bursts in the event of a failure to observe the
specifications, and thus lead to serious injuries.
u Prior to all work, depressurise hydraulic devices and
lines and safeguard against a restart (see chapter
Depressurising the hydraulic system).
u Do not tighten screw connections which are under
pressure.
u Always use the requisite personal protective gear.
u Always use hydraulic lines which are intended for the
respective purpose.
u Always install hydraulic lines correctly and protect
these against mechanical and thermal damage.
u Do not exceed the nominal pressure for the hydraulic
lines.
DANGER Risk of death due to use of old parts
Using old parts (old hydraulic hoses, screws or retainers)
can lead to accidents, which may in turn result in severe
injuries.
u Only use new parts.
u Only use original parts.
Note: When working on the hydraulic circuit, always
have suitable oil receiver tanks available and collect oil
for environmental reasons.
Note: When changing the hydraulic hoses, always use
the manufacturer's original parts exclusively.
n
Remove the motor cover from the drum cutter.
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Clean the immediate environment around the hy-
draulic hose connections requiring replacement.
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Loosen the threaded connections on the hydraulic
hose fittings.
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Loosen the hose fittings on the carrier.
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Remove the hydraulic hose and insert end caps into
all fitting openings.
n
Unscrew the end cap from one side of the new hy-
draulic hose.
n
Place a new hydraulic hose on the fitting.
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Tighten the new hydraulic hose (see chapter Bolt
connections / Tightening torques).
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Fit the motor cover to the drum cutter.
7.15 Actions following
maintenance
After completing the maintenance work and prior to
switching on the hydraulic attachment carry out the fol-
lowing steps:
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Check that all previously loosened threaded connec-
tions have been tightened.
n
Check that all previously removed safety devices and
covers have been replaced in an orderly manner.
n
Ensure that all tools, materials and other equipment
used have been removed from the working area.
n
Clean the working area and remove spilled sub-
stances such as liquids, processing materials and
similar.
n
Ensure that all safety devices on the hydraulic attach-
ment are fully functional.
n
Ensure that the stipulated prerequisites for the carrier
have been fulfilled (see chapter Preconditions for
the carrier).
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