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5 - 3 Hose Connection Diagram
(1) Connect the Connection Hose (Air Line Kit's Standard Accessory) to the Primary Joint of the Air Line Kit.
(Fig. 4 ⑥ )
(2) Connect the other side of the Connection Hose (Air Line Kit's Standard Accessory) to the compressor.
(Fig. 4 ⑦ )
5 - 4 Operation
CAUTIONS IN USING AIR LINE KIT
・ When connecting the Compressor and Air Line KIt, recommended install the lter or air dryer
to between Compressor and Air Line Kit in order to supply clean dry air to the Air Motor. Using
compressed air containing excessive moisture could result in malfunction or failure of the
Air Motor. If excessive moisture or condensation are found in Filter Regulator Bowl, it will be
necessary to install a dryer and larger Filter on the Primary Joint side of the Air Line Kit to prevent
and remove excessive moisture.
・ Connect the input air supply connection hose and supply air / oil hose securely to avoid
accidental disconnection during use. Input air pressure should never exceed 1.0MPa (145psi). Air
pressure exceeding 1.0MPa (145psi) may cause the supply connection hose and or air / oil hose
supply to rupture.
・ Make sure operation air pressure is less than 1.0MPa (145psi) before connecting the input supply
connection hose and air / oil supply hose. If operation air pressure is exceeds 1.0MPa (145psi),
injury to the operator may occur by accidental disconnection before or during use.
・ Before use, carefully read " Air Line Kit Operation Manuals " regarding the correct connection,
operation and cautions when using the Air Line Kit.
(1) Supply air pressure to the Air Line Kit.
(2) Supply air from the air compressor and turn the Regulator Knob to set air pressure between 0.3 - 0.45 MPa
(43.5 - 65.3psi).
(3) Motor will be rotated by turning the Ring Switch of Air Motor toward ( " F : FWD." or " R : REV." ) in Fig.5 and
stepping on Foot Control.
(4) Turn the Control Valve and adjust the Chip Air when connected to an " IM - 300 " ROTUS Air Motor.
Turn the Groove on the Adjusting Screw of Control Valve (Chip Air) using a precision screwdriver to adjust the
air ow.
Horizontal Position : Minimum Air ow
Vertical Position
: Maximum Air ow
Groove is Horizontal Position
Adjusting Screw
Groove
Minimum Airflow
(5) Press the Foot Control to start Air Motor rotation.
(6) Adjust the Oil Drip Rate to the recommended volume which is 1 to 3 drops / min. (Commercially Air Line Kit is
same Oil Drip Rate).
(If using the " AL - 0306 " Air Line Kit, adjust the proper Oil Drip Rate to 30 - 40 drops / min).
* Refer to the Operation Manual of the Air Line Kit for detailed information.
Lubricating Oil
Use ISO VG15 Liquid Paraf n (Shell Ondina Oil #15) in the Air Line Kit
lubricator bowl.
(For U.S.A. speci cation, use Chevron Superla #9).
5 - 5 Stop the Air Motor
WARNING
When stopping the Air Motor, release all the pressure from the supply air / oil hose by rotating the
Air Motor with the F / R Ring Switch. If the Ring Switch is not in the right position, the air cannot
be removed. Failure to do this may cause damage to the supply air / oil hose.
(1) Take your foot off the Foot Control.
( When using a commercial Air Line Kit, stop the air supply with the ON / OFF Valve.)
(2) Remove all the pressure from the supply air / oil hose with the F / R Ring Switch.
6 . Connection of Nozzle
When " Lever Type Attachment (IH - 300) " and " ROTUS Air Motor (IM - 300) ", are used together, a chip air can be
used when nozzle is attached.
① Put off a ring attached with IH - 300 toward the edge, enlarging the divided part of the ring.
② Insert a ring part of nozzle from the edge of IH - 300.
Ring
Fig. 5
Groove is Vertical Position
Adjusting Screw
Groove
Maximum Airflow
Fig. 6
Model
・Lubricating Oil (K - 211) 70cc
・Lubricating Oil (K - 202) 1 ℓ
Fig. 7
Fig. 8
③ Insert a tube of nozzle into a pipe.
7 . TROUBLESHOOTING
If a problem or concern occur, please check the following items prior to consulting your dealer.
Trouble
Cause
Air Motor does not
Air ow does not reach the Air Motor.
rotate or rotate
smoothly.
The spindles ball bearings have been
damaged.
The motor has been damaged by for
no Lubricating Oil
Motor speed
The connection hose or air / oil supply
decrease.
hose have been damaged.
Poor connection of input supply or air
/ oil supply hose.
Low air pressure.
Low Lubricating Oil.
No Lubricating Oil.
Water, dirt and debris are collected in
the Filter Regulator.
Water in Lubricating Oil reservoir.
Unequal motor
Excessive Oil Drip Rate ooding the
rotation.
bearings.
Over lled lubricator.
(Air Line Kit " AL - 0306 " only.)
Overheating during
Cutting debris has contaminated the
rotation.
ball bearings, and the ball bearings
are damaged.
Abnormal vibration
Cutting debris has contaminated the
or noise during
ball bearing.
rotation.
The spindles ball bearings have been
damaged.
8 . DISPOSAL OF THE AIR MOTOR
When disposal of an Air Motor is necessary, follow the instructions from your local government agency for proper
disposal of industrial components.
Contents are subject to change without notice.
Pipe
Insert
Fig. 9
Inspection / Corrective Action
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.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Replace the motor.
(Return to NAKANISHI dealer service.)
Replace the input supply and or air / oil supply
hoses.
Check all threaded joints and re-tighten if
necissary.
Check the Compressor, Air Circuit, and Regulator.
Check lubricator for proper lubricant level. Set the
Oil Drip Rate from 1 to 3 drops /min.
* If using the " AL - 0306 " Air Line Kit, adjust the
proper Oil Drip Rate to 30 - 40 drops / min.
Clean inside of the motor use the Lubricating Oil.
Removing the Filter Joint from Air Line Kit, supply
a small amount of Lubricating Oil directly into
the Filter Joint. Afterwards, supply air pressure
and rotate the Air Motor. Flush dirt in the motor
and repeatedly do this work about three times.
When the improvement is not seen, return to
NAKANISHI dealer service.
Drain water, dirt and debris from the Filter
Regulator Bowl.
Drain water from Lubricating Oil reservoir and
replace with clean 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 ood
spindle.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
2015.05.20 005
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