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Service and maintenance
160
Handling accumulator
Handling accumulator
WARNING!
The accumulator is charged with high pressure nitrogen
gas.
To prevent serious accidents, perhaps even fatal accidents,
handle with care and observe the following:
Do not hit, drill, or weld the accumulator.
Keep it away from open flame or other high heat sources.
Ask your authorized Volvo CE dealer workshop to
discharge the pressure in the accumulator prior to
disposal.
If you operate the operating lever downward after the
engine stops, the accumulator allows the attachment to
move under its own weight.
After stopping the attachment.
Move the safety locking lever down to lock the system
securely, See Safety locking system on page 60.
Operation of accumulator (in emergency)
1 Stop the engine by turning the starting key to STOP (
tion.
2 Turn the starting key to Running (
3 Put the operating lever to boom down position to lower the at-
tachment by its own weight.
Accumulator releasing pressure
S84272
1 Completely lower the attachment to the ground.
2 Keep all the attachments such as hammer closed.
3 After stopping the engine, turn the start switch to Running (
position. Even after performing the above, the pressure has
not been released completely. Loosen the hose connection
slowly when you disconnect the accumulator. And step aside
in case oil should jet out.
4 Move the safety bar up to unlock the system.
5 To release the pressure in the control circuits, move the oper-
ating levers and pedals forward / rearward and left / right to
their respective end positions.
6 Turn the start switch to STOP (
7 Move the safety locking lever down to lock the system secure-
ly, Safety locking system on page 60.
Even after performing the above, the pressure has not been elim-
inated completely. Loosen the hose connection slowly when you
disconnect the accumulator. And step aside from the oil ejection
direction.
) posi-
) position.
) position.
)
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