Nakanishi PLANET600 Series Operation Manual page 18

Trouble
Air Turbine Spindle
rotation speed is too
slow.
Air Turbine Spindle
is Oscillating during
rotation.
Overheating during
rotation.
Abnormal vibration or
noise during rotation.
Grindstone slippage.
High run-out.
High run-out.
Refer to the Air Line Kit (AL - M1202) Operation Manual.
32
Cause
Water in Lubricating Oil
reservoir.
Lubricator inclined or
upside down.
Excessive Oil Drip Rate
flooding the bearings.
Over filled lubricator.
Cutting debris has
contaminated the ball
bearings, and the ball
bearings are damaged.
The shank of the grindstone
is bent or the grindstone
need to be dressed.
Cutting debris has
contaminated the ball
bearing.
The spindle ball bearings
have been damaged.
Collet or collet nut is not
correctly installed.
The collet and the collet
nut are worn.
Incorrect collet size for the
grindstone shank.
The grindstone shank is
bent.
Collet nut is not correctly
installed.
The collet and the collet
nut are worn.
Incorrect collet size for the
grindstone shank.
Inside of the spindle is
worn.
Contaminants inside the
collet and the collet nut or
the spindle.
The spindle ball bearings
have been damaged.
Inspection / Corrective Action
Drain water from Lubricating Oil reservoir
and replace with clean Lubricating Oil.
Inclined or upside down lubricator will flood
spindle with Lubricating Oil.
Oil drip rate exceeds the recommended
amount.
Adjust for the proper Oil Drip Rate.
Drain the Lubricating Oil from Reservoir to
meet indicated levels. Excess lubricant will
flood spindle.
Draining the Lubricating Oil until upper
limit below by opening the Drain Valve.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Replace or dress the grindstone.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Check and clean the collet and collet nut.
Reinstall the collet and collet nut.
Replace the collet and collet nut.
Change the grindstone.
Secure the collet and the collet nut
correctly.
Replace the collet and the collet nut.
Replace the spindle shaft.
(Return to NAKANISHI dealer service.)
Clean the collet, collet nut and the inside
of the taper and spindle.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)