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Remove boom cylinder from Boom
1. Ensure that the boom end is placed on a wooden block.
2. Release remaining pressure from the piping of boom
cylinder (10).
Refer to the "Operator's Manual for Hitachi Excavator" for
releasing pressure.
3. Remove lubrication piping (16) to the rod side adapter
on boom cylinder (10).
Wrench size
Boom cylinder (10) weight: : 290 kg
4. Hoist and hold boom cylinder (10).
Remove nuts (15) (2 used), bolt (14) and stopper (13)
from boom cylinder rod end pin (12). (2 positions on left
and right side)
Wrench size: 30 mm
5. Loosen the rope and lower boom cylinder (10) gently.
Place a protector at the contact position of boom
cylinder (10) and the frame to prevent the cylinder from
being damaged.
6. Remove boom cylinder (10) at other side (right) from the
boom in the same procedures.
7. Fully retract boom cylinder (10).
DISASSEMBLING • ASSEMBLING
: 19 mm
14
13
15
4-24
10
16
W105-04-01-002
12
W178-04-01-004
MDCA-SL1-038
10
25
10
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