7
Trouble
Cause
Inspection/Corrective Action
Motor does not
run.
Air flow does not reach the
spindle.
Check air hoses for cracks, kinks, or disconnection.
Check connection of air hoses.
Check source of compressed air.
Air pressure regulator turned to low pressure. Set proper
air pressure.
Damage to the ball bearing.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Damage to the motor.
Replace the motor.
(Return to NAKANISHI dealer service.)
M o t o r s p e e d
decrease.
Damage to air hose.
Replace air hose.
Bad connection of air hose.
Check the connection part and retighten the thread.
Poor air ow and air pressure.
Check if the air circuit is damaged.
Low lubricant.
Check lubricator for proper lubricant level. Set lubricant
drip rate from
30 to 40 drops /min. If using a non-
NAKANISHI lubricator, adjust lubricant drip rate from
1 to
3 drops / min.
No lubricant.
Clean inside of the motor with oil. Remove lter joint from
air line kit, and lubricate inside of joint directly.
Afterwards, supply air and rotate. Flush dirt in the motor.
Repeatedly do this work about three times. When the
improvement is not seen, return to NAKANISHI dealer
service.
Water in air lter.
Drain water from air lter.
Water in lubricant reservoir
Drain water from lubricant reservoir, and replace with
clean lubricant.
Unequal motor
speed.
Lubricator inclined or
upside down.
Inclined or upside down lubricator will ood spindle with
lubricant.
Over lled lubricator.
Drain lubricant from reservoir to within indicated levels.
Excess lubricant will ood spindle.
7
. TROUBLESHOOTING
If a problem or concern occurs, please check the following prior to consulting your dealer.
