Doosan DX480LC - Arm Removal Procedure

SP001851
Page 11
Boom and Arm
FRONT ATTACHMENT -
REMOVAL AND INSTALLATION
Refer to the appropriate Bucket section for its removal and
installation procedure before going onto the initial step of the
front attachment removal or installation procedure.
Arm Removal Procedure
Complete the bucket end removal procedure by pulling out the
two bucket linkage pins and the bucket cylinder mounting pin, on
the arm. Use an assist crane or hoist to lift the cylinder and
relieve weight on mounting pins.
FG000371
Figure 2
DANGER
DOOSAN warns any user, that the removal of the
counterweight from the machine, front attachment or any
other part, may affect the stability of the machine. This
could cause unexpected movement, resulting in death or
serious injuries. DOOSAN is not liable for any misuse.
Never remove the counterweight or front attachment unless
the upper structure is in-line with the lower structure.
Never rotate the upper structure once the counterweight or
front attachment has been removed.
IMPORTANT
Always break down the front attachment by removing
outermost sections first - the bucket before the arm, the
arm before the boom. Reinstallation of the attachment
should begin with the boom and end with the bucket.
WARNING
This procedure is only intended for routine removal or
replacement of the attachment, while working under
normal, safe operating conditions. In the event of a major
structural collapse of some part of the attachment, an
accident or complete loss of attachment hydraulic function,
DO NOT proceed with attachment disassembly unless you
are completely sure of what you are doing. Please call your
local DOO S AN distributor or DOOSAN After Sales Service
for assistance. DO NOT allow personnel to stand
underneath a weakened or only partially supported
attachment section. Keep clear of hydraulic lines that may
have fluid escaping at high-pressure - it can cause severe
or even fatal injuries.