Hitachi ZAXIS 450LC-3 Operator's Manual page 194

• Bolt Tightening Torque Specifications
Bolt Location
Counterweight
mounting bolt
Counterweight lock
plate securing bolt
Pin lock securing bolt
Hose connecting bolt
• Precautions for Tightening Bolts
Use a torque wrench to tighten bolts to specifications. After
tightening bolts to specification, mark the tightened bolt
head to ensure that all the bolts have been tightened.
Be sure to use Hitachi original bolts. If the bolt length is
too long or short, the bolt will not be tightened correctly,
possibly inducing an accident
Bolt Torque
Size N•m (kgf•m)
M45 2400 (240)
M24 450 (45)
M20 400 (40)
M12 110 (10)
M14 180 (18)
ASSEMBLING
(lbf•ft)
(1735)
(325)
(290)
(70)
(130)
6-2