Presto CONTI COMPACT CC-20 V Operating Manual page 59

Maintenance
7.4.13 Hydraulic hosed and screwing:
Check for condition and leaks
Check the hydraulic pipes for visual
defects (porosity, damage, crushing, etc.
...) and leaks. If any defects are found they
must be fixed immediately by a qualified
specialist.
Damaged hydraulic pipes may not be
repaired or assembled from parts that
have already been used.
Openly accessible pipes must be equipped
with a pipe protection and a detachment
protection according to DIN ISO 16252.
For this reason if hydraulic pipes are
replaced only original PRESTO spare parts
may be used, or products that fulfil these
requirements.
Fig. 86: hydraulic hose with hose protection /
detachment protection
Hydraulic pipes must be replaced 6 years
after being manufactured at the latest
(see stamping on the screw connection.
04/2015 S. 59
Observe safety conditions!
SWITCHING OFF & SECURE
(see 7.1)
Hydraulic maintenance work
may only be performed by
authorised specialists. The
parts to be replaced must be
free of pressure.