Hitachi NEXT Series Service Manual

26
Air-Cooled
1
For light and non-greasy dust particle
① Remove the front door and panel and rear panel
[Ref.No. 904, 905, 906, 944, 953, 911, 912, 913].
② Remove the maintenance cover (1)(2)(3)(4).
③ Use an air nozzle to blow the cooler surfaces.
2
For heavy and greasy dust particles
(detaching the cooler)
① Remove the enclosure panels.
② Drain the oil from the system.
③ Disconnect all the sensor wires from the cooler.
④ Disconnect all air / oil pipes at the joints.
⑤ Disconnect the discharge pipe.
⑥ Loosen and remove the cooler bolts.
3
For heavy and greasy dust particles
(cleaning the detached cooler):
① Use an air nozzle to blow the cooler surfaces.
② Soak the cooler in a detergent bath or spray
detergent onto the cooler. Use an air nozzle to blow
the cooler surfaces.
③
Generally, there are 3 kinds of dust and dirt particles.
・ Light dust particles
・ Heavy dust particles
・ Greasy dust particles
Contact the local HITACHI distributor/master
dealer or representative office for the detail.
4.8 Clean Cooler (Annually)
Instrument
panel
Front door (2)
Front door (1)
Front panel
Front frame
Maintenance
cover (2)
Rear panel (3) Rear panel (2) Rear panel (1)
Maintenance cover (4)
Maintenance cover (3)
Magnet rubber
Maintenance cover (1)
● Oil cooler
Scale removal
Remove the oil cooler water chamber cover. Flush
with scale remover and use a brass wire brush to
remove the scale from the inner surfaces of the oil
cooler tube nest.
● Intercooler/Aftercooler
If scale build up occurs often, contact the local
HITACHI distributor/master dealer or
representative office for scale removal.
Oil cooler
Wire brush
Water-Cooled

Hitachi NEXT Series Specifications

General

Brand	Hitachi
Model	NEXT Series
Category	Air Compressor
Language	English