Hitachi ZAXIS 250LC-7 Operator's Manual page 48

5. Slowly lower arm (22) end onto the ground.
6. Align the hole on arm (21) and hole on the arm cylinder
by extending/retracting arm cylinder. Install shims and
pin (24), and then install the retaining bolt.
Tightening Torque:
Model
HE15LD
ZX250LC(N)-7
HE18LD
HE15LD
ZX300LC(N)-7
HE18LD
HE15LD
HE18LD
ZX350LC(N)-7
HE20LD
IMPORTANT: If the shims are not installed, it generates
play on left and right side, which can damage the pin
and holes.
DISASSEMBLING • ASSEMBLING
Type Tightening Torque
400 N·m (40 kgf·m)
HE22
Hoist the arm
cylinder by using
a crane.
Lower the arm
end onto the
22
ground
4-14
21
24
M1T1-SL1-001