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TROUBLESHOOTING
16.
If a problem or concern occur, please check the following items prior to consulting your dealer.
Trouble
Cause
Inspection / Corrective Action
The Air Turbine Spindle
does not rotate or rotate
smoothly.
Air flow does not reach the
Air Turbine Spindle.
Check if input supply connection hose
or air / oil supply hose is broken, bent or
disconnected.
Check connection of the input supply
connection and air / oil supply hoses.
Check the compressor power supply and
the air compressor output.
Check the Regulator and set to the correct
air pressure.
Check all connections input supply and air /
oil supply hose.
The spindle ball bearings
have been damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Air Turbine Spindle
rotation speed is too
slow.
The connection hose or air /
oil supply hose have been
damaged.
Replace the input supply and or air / oil
supply hoses.
Poor connection of input
supply or air / oil supply
hose.
Check all threaded joints and re-tighten if
necessary.
Low air pressure.
Check the Compressor, Air Circuit, and
Regulator.
Low Lubricating Oil.
Check lubricator for proper lubricant level.
Set the Oil Drip Rate 1 drops / min. if using
the AL - M1202 Air Line Kit or commercially
available Air Line Kit.
Water, dirt and debris are
collected in the Air Filter.
Drain water, dirt and debris from the Air
Filter Bowl.
Work Hole Diameter
Collet Diameter
Recommended Grindstone Diameter
Less than
φ
13.0mm
φ
3.0mm
Less than
φ
6.0mm
Less than
φ
70.0mm
φ
6.0mm
Less than
φ
16.0mm
Be sure to confirm the grindstone manufactures maximum rotation speed for that
grindstone before rotating the spindle. If using the grindstone beyond the maximum
rotational speed of the grindstone, damage to the grindstone, spindle or malfunction to the
collet or spindle will occur.
CAUTION
When using a grindstone, select the correct collet diameter for the corresponding shank size and
grindstone diameter according to diameter of the bore to be ground (Refer to Table. 4).
Table. 4
CONFIRMING THE PART BORE DIAMETERS, COLLET DIAMETER AND
GRINDSTONE DIAMETER
15.
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2017/07/18 13:55:37
