Doosan DX60R Shop Manual page 28

Attachment Precautions
Option kits are available through your dealer. Contact DOOSAN
for information on available one-way (single-acting) and
two-way (double-acting) piping / valving / auxiliary control kits.
Because DOOSAN cannot anticipate, identify or test all the
attachments that owners may wish to install on their machines,
please contact DOOSAN for authorization and approval of
attachments, and their compatibility with optional kits.
Accumulator
The pilot control system is equipped with an accumulator. For a
brief period of time after the engine has been shut down, the
accumulator will store a pressure charge that may enable
hydraulic controls to be activated. Activation of any controls
may enable the selected function to operate under force of
gravity.
When performing maintenance on the pilot control system, the
hydraulic pressure in the system must be released as
described in "Handling of Accumulator" in the Operation and
Maintenance Manual.
The accumulator is charged with high-pressure nitrogen gas,
so it is extremely dangerous if it is handled in the wrong way.
Always observe the following precautions:
• Do not drill or make any holes in the accumulator or
expose it to any flames, fire or heat source.
• Do not weld on the accumulator, or try attaching
anything to it.
• When carrying out disassembly or maintenance of
the accumulator,
accumulator, the charged gas must be properly
released. Contact your DOOSAN distributor.
• Wear safety goggles and protective gloves when
working on an accumulator. Hydraulic oil under
pressure can penetrate the skin and cause serious
injuries.
Track Excavator Safety
Page 20
or when disposing of the
SP001614