Pressure Release - Volvo ECR25 Electric Operator's Manual

Operating techniques
122

Pressure release

A
B
4
V1128055
Control lockout lever
Pressure release
Before removing or connecting hydraulic hoses the
pressure in the hydraulic system must be released.
WARNING
Risk of high pressure injection.
Residual pressure in the hydraulic system could
lead to oil under high pressure jetting out and cause
serious injury, even if the electric motor has not
been running for some time.
Always release the pressure before any kind of
service of the hydraulic system is carried out.
1 Place the machine on firm and level ground.
2 Lower the attachment and the blade to the
ground.
3 Shut down the electric motor and turn the ignition
key to running position/ignition (I).
4 Move the control lockout lever (4) down to unlock
the system.
5 Shift the rollers on the joysticks a couple of times
to the right and to the left.
6 Then move the joysticks and the driving levers
in all directions a couple of times to release all
residual pressure.
7 To release the pressure in the accessory line
(X1) and boom offset:
Select function and shift the rollers on the
joysticks to the right and to the left in accessory
line (X1) position and in boom offset position.
NOTE!
It must be strictly assured that the electric motor
cannot be started after hydraulic couplings have
been opened.