Oil Cooler; Scale Removal; Aftercooler/Intercooler - Hitachi NEXT Series Instruction Manual

9. MAINTENANCE [How to Service the Air Compressor]
Water-Cooled
Cleaning of Cooler (Annually)
10
● 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.
● Aftercooler/Intercooler
If scale build up occurs often, contact the local
HITACHI distributor/master dealer or representative
office for scale removal.
88
Wire-Brush

Oil Cooler