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9. MAINTAINING THE DSP [How to Service the DSP Air Compressor]
12
Main Motor Greasing (Every 3-Months)
Load-Side
bearing grease port
Anti-Load-Side
bearing grease port
Grease pan
Grease pan
The main motor bearings on both the load-side bearing
and anti-load-side require grease replenishment each 3
months.
① Remove the front-left-door.
② Use a grease gun (out of scope of supply) to grease
the bearings.
③ Use “Raremax Super N” manufactured by KYODO
YUSHI CO.,LTD. as the standard motor bearing
grease. (Hitachi part name: RMS grease, Part
No.455)
④ Periodically clean the grease pan.
Grease replenishment amount
Model
Load-Side bearing
Anti-Load Side bearing
DSP-132WN
DSP-145WN
DSP-160WN, (VWN)
140g 140g
DSP-200WN
DSP-240WN, (VWN)
250g 250g
The proper amount of grease must be applied to the main motor to ensure that there is no leakage and/
or overheating of the bearings. Ensure that the main motor is properly greas ed during the commission-
ing of the start-up of the compressor. If the compressor has not been operational for (3) months grease
when restarting.
Following "9.1 Air Compressor Maintenance" on page 67 and "9.2 Standard
Maintenance Schedule (A)(B)" on page 68 to 71, replace the main motor bearings periodically.
CAUTION
● Grease gun example
Lever-type grease gun made by Yamada Corporation
(CH-400 Micro-hose [pin type SPK-1C])
● Contact your local authorized distributor or master
dealer for the purchase of approved Hitachi grease.
● Main motor is to be greased only when it is operating.
● Grease pan should only be cleaned when the com-
pressor is not operatong.
IMPORTANT
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