Main Motor Greasing; Grease Filling Amount - Hitachi NEXT Series Instruction Manual

9. MAINTENANCE [How to Service the Air Compressor]

Main Motor Greasing

14
Feed the main motor with grease in accordance with the
Grease Filling Amount table. Grease to be used is Raremax
Super by Kyodo Yushi (Hitachi part name: RMS grease)
(P/N 455).
① Open the front door. Grease the specified amount
through the grease port using a grease gun.
② Check the grease pan, and clean the pan as necessary.
③ Close the front door.
Load-side bearing
Grease port
Be cautious of replenishing grease more than the spcified amont. It may cause leaking of grease and/or
malfunction of the protective device due to overheat of the bearing. Grease at once during start-up
commissioning.
Periodically replace the main motor bearing in accordance with
Compressor" in page 74 and
Maintenance Schedule B in pages 75 to 78.
92
Anti-Load-Side bearing
Grease port
"9.2 Standard Maintenance Schedule" Maintenance Schedule A

Grease filling amount

Model
DSP-90A6N
DSP-90W6N
DSP-90VA6N
DSP-90VW6N
DSP-110A6N
DSP-110W6N
DSP-110VA6N
DSP-110VW6N
● Example of grease gun
Lever-type grease gun CH-400 Micro-Hose (pin type
SPK-1C) by Yamada Corporation.
IMPORTANT
● Contact the local HITACHI distributor/master dealer or
representative office for the grease detail.
● Greasing must be done while the main motor
operating.
● Cleaning of grease pan must be done while the air
compressor stops.
Grease pan
CAUTION
Anti-Load Side
Load-Side bearing
1.2oz
(30g)
Bolt with knob
"9.1 Periodical Maintenance of
bearing
2.5oz
(70g)