Volvo EC60E, Operator'S Manual, Page: 237 / 342

Hydraulic system
NOTICE
Any work on the hydraulic system requires great
demands on cleanliness. Even very small particles
can cause damage or clog up the system.
Therefore, wipe areas in question clean before any
work is carried out.
The pressure-limiting valves for the hydraulic
system are set to the correct value at the factory. If
the valves are altered by any person other than
service personnel at a workshop authorized by
Volvo Construction Equipment, the guarantee from
the manufacturer will be void.
Hydraulic oil
NOTE!
Hydraulic oil is hazardous to the environment.
Immediately use barriers to contain spilled oil and
follow local regulations concerning hazardous
materials.
NOTICE
Only hydraulic oil that is approved by Volvo may be
used.
NOTICE
Use the same hydraulic oil that is already in the
system. The hydraulic system may be damaged if
different brands of hydraulic oil are mixed.
Hydraulic bio oil
1 When changing from a mineral oil to a bio oil, the
oil must be drained as much as possible and it
is required to flush the hydraulic system.
2 For the drain points and changing method,
please contact the workshop authorized by
Volvo Construction Equipment.
236
Safety when servicing
Before service, read