Hitachi ZAXIS 210LC-5N Operator's Manual page 55

Remove boom cylinder from Boom
d
WARNING:
 NEVER insert your fingers into pin holes when
aligning the pin holes.
Serious personal injury may result.
 Guard against injury from flying pieces of metal.
Wear goggles or safety glasses, and safety
equipment appropriate to the job.
 Do not enter underneath the arm cylinder when
removing pins.
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
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)
Boom cylinder (10) weight: : 290 kg
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 (25) in the same procedures.
7. Fully retract boom cylinder (10).
DISASSEMBLING • ASSEMBLING
: 19 mm
4-23
10
12
14
13
15
MDCA-SL1-038
16
10
W105-04-01-002
25
10
11
11
W178-04-01-004