Disassembly - Doosan DX140R Shop Manual

DISASSEMBLY

Vent air from the hydraulic system before disconnecting
cylinder piping connections. Use the lever on the reservoir,
while the engine is running. Discharge the hydraulic
accumulator and vent residual tank pressure after the
engine is shut off. Pour clean replacement fluid back into
the system if excessive fluid is lost.
1. Following removal of cylinder from excavator attachment,
support cylinder on some type of sturdy work platform and
drain all oil. Rotate cylinder so that piping ports are on top,
to allow trapped air to vent.
2. Position piston rod so that it is extended approximately one
half meter (20").
3. Remove bolts (27) on the end of cylinder.
NOTE: Wrap a cloth or other protective material around
piston rod, to avoid possibility of accidentally
scratching
fasteners are being loosened and removed.
Component parts (numbered in parentheses)
are keyed to Figure 4.
Cylinders
Page 22
CAUTION
or scoring rod surface
Figure 12
Figure 13
while
Figure 14
SP000030