Hitachi UX Twin Nozzle - Page 137

4-3
[Caution]
Since the circulation unit is made of plastic, tightening the screws with excessive torque will break the unit.
See the table below for reference torques:
Fixing screw (Part to be fixed)
Parts where
screws are used.
Material
tapped
Reference tightening
torque
N·m
kgf·cm
Self-tapping screw M4X12
(Viscometer, etc.)
Pump unit
PBT(G30)
1.7±0.3
17.3±3
Circulation unit
PBT(G30)
1.7±0.3
17.3±3
Ink main tank
PBT(G30)
1.7±0.3
17.3±3
Self-tapping screw M4X16
(Solenoid valve)
Circulation unit
PBT(G30)
1.7±0.3
17.3±3
Self-tapping screw M4X30
(Circulation unit)
Pump unit
ADC12
(aluminum)
1.7±0.3
17.3±3
Self-tapping screw B M3X10
(ICU joint)
Pump unit
PBT(G30)
0.5±0.1
5.1±1
Circulation unit
Self-tapping screw M4X16
(Solenoid valve, etc.)
Recovery
pump unit
POM
1.7±0.3
17.3±3