Fayat BOMAG BW 120 AD-5, Operating Instruction

Page: 160 / 210

8.9.4 Checking the hydraulic lines
This work must only be performed by an
expert / qualified person!
1.
Park the machine in secured condition
Ä
Chapter 6.8 ‘Parking the machine in
secured condition’ on page 114
.
2. Check all hydraulic lines.
Hydraulic hoses must be immediately
replaced if:
n
the outer layer is damaged down to the
inlay (e.g. chafing, cuts, cracks),
n
embrittlement of the outer layer or for-
mation of cracks in the hose material,
n
the hose shows deformation in pressur-
ized and depressurized condition, which
do not comply with the genuine shape of
the hydraulic hose (e.g. layer separa-
tion, formation of blisters, crushed spots,
buckling),
n
leaks on hose, socket or fitting,
n
the hydraulic hose has separated from
the fitting,
n
fittings are damaged or deformed,
whereby the function and strength of the
hose - fitting connection is impaired,
n
the fitting shows corrosion that impairs
both function and strength,
n
incorrect installation (squeezing,
shearing or chafing points),
n
paint covered hydraulic hoses (no detec-
tion of identifications or cracks),
n
shelf life and service life exceeded.
3. Replace damaged hydraulic hoses immedi-
ately, fasten these properly and avoid
chafing.
4. Only operate the machine after it has been
repaired.
Maintenance – Every 500 operating hours
BW 120 AD-5 160