Inspections, Adjustments, Maintenance● The following precautions apply to inspection, adjustment, and maintenance.

Danger
Maintenance andinspection of the rice
milling machine must be
performed by a person
whofully understands thisinstruction manual.

Always turn the power off
when performing
maintenance andinspection of the rice
milling machine.
* Otherwise, electric shock or
injury may occur.

* There is a risk of electric
shock, injury, failure, or
damage when operated bya person who does notunderstand it.

Warning
Whenever a cover isremoved,return it to its
original position.

Have the dealer repair or
replace the wires.
* Otherwise, electric shock orfire may occur.

* Otherwise, electric shock or
injury may occur.

Do not let children playaround the rice mill.
* It may result in electric shockor injury.

When multiple people areworking together, makesurethey communicate
with each other.
* Otherwise, electric shock or
injury may occur.

６－１

Caution
When cleaning thedischarge outlet, turn thepower off and allow theheater in the discharge
chute to cool.

Do not damage, pull, or
pinch wires.
* It may result in electric shock,failure, or damage.

* Otherwise, burns or injury
may occur.

Do not climb on the coversof the rice millingmachine.

Do not subject the rice
milling machine to severe
impacts.

* They may become damaged
or unable to be attached.

* It may result in failure ordamage.

Do not modify the rice
milling machine.
* It may result in injury, failure,or damage.

６－２

6.1 Regular check table● Perform checking in accordance with the following regular check table.
The check timeline is the recommendation based on 8 operating hours

Slack or damage in the Abrasive
motor V-belt
Slack or damage in the Friction
motor V-belt
Slack or damage in the raw
material feed V-belt
Clean the Outlet

Monthly

WeeklyItems for regular check

Beforeoperationcheck period

Reference
pageper day.

●Page 6-4●

Page 6-5●

Page 6-6●

Page 6-7

Clean the Bran Removal Chamber in
the Friction section●

Page 6-8

Clean the Bran Duct●

Page 6-9

Clean the Bran Removal section in
the Abrasive section
Cleaning the Hopper and the raw
material feed section●●

Clean the Blower Fan Filter●

Check for damaged wires andretighten the terminal block●６－３Page
6-10
Page
6-12
Page
6-13
Page
6-14

Comments

At least
once a week
At least
once a week
At least
once a month
At least
once a month
At least
once a month
At least
once a month6.2 Check, Adjustment, Maintenance overview
6.2.1 Slack or damage in the Abrasive Motor V-Belt
SnapFastener
Cover G

Knob Bolt

Cover J

Cover H

Bolt M6

Belt Cover D

Nut M16
Tension Bolt

１Remove the Cover H ⇒G⇒J, then Belt Cover D and turn the V-Belt
while inspecting for slack or damage.
● To remove Cover H, G, unfasten the Snap Fastener.
● Lift the Cover J up and remove it.
● For the Belt Cover D, remove Bolts M6 (4 pieces) on both sides.

２

If there is slack, use accessory wrench 24 to loosen Nut M16 on theTension Bolts and tighten the Belt to prevent slipping in the direction ofthe arrow.
If there is damage, replace the V-Belts.

３Tighten Nut M16 firmly.
Reassemble the removed Covers to its original position.
６－４

6.2.2 Slack or damage in the Friction Motor V-BeltTension Bolt
Nut Ｍ20Belt Cover B
Bolt Ｍ8

Tighten to avoid slipping

１

Remove Belt Cover B and turn the V-Belt while checking for slack ordamage.
● For Belt Cover B, remove Bolts M8 (4 pieces) on both sides.

２

It there is slack, use accessory wrench 30 to loosen Nut M20 on theTension Bolts and tighten the Belt to prevent slipping in the direction ofthe arrow.
If there is damage, replace the V-Belts.

３

Tighten Nut M20 firmly.
Reassemble the removed covers to its original position.

６－５

6.2.3 Slack or damage in the Material Feed V-Belt
Bolt M6Tension Pulley
Material Feed
V-BeltTension Plate DTension Coil Spring

１Remove Cover G, H, J and Belt Cover D.
● Refer to P.6-4 １

２

If there is slack, remove Bolts M6 (2 pieces) that secure Tension Plate D,alter the mounting position in the direction of the arrow and tighten theV-Belt.
If damaged, remove the Tension Coil Spring, release the Tension Pulleyand replace.

３Reassemble the removed parts in their original positions.

６－６

6.2.4 Cleaning the Outlet

OutletWindow
OutletDischarge
Chute C１

Open the Outlet Window, pull the Outlet Chute C in front and wipe away
any bran attached to the Outlet, back side of Outlet Chute C with a softcloth.

Note● Do not use metal scrapers or brushes.
Bran will stick easier to a scratched surface.

２

Return position for Outlet Chute C and Outlet Window to its originalposition.
（Push Outlet Chute C slowly by stopping）

６－７

6.2.5 Cleaning the Bran Removal Chamber in the Friction section
Screen Holder
Bran Removal
Chamber

Bran Case G
Handle１

Pull the Handle and remove the Bran Case G and wipe away any bran
inside the Bran Cases. (Bran Case G is only fixed with magnet)● Clean the opposite side as well.
Note● Do not use metal scrapers or brushes.
Bran will stick easier to scratched surface.

２

Using a blow gun or vacuum cleaner, clean any bran on the Bran
Removal Chamber, the Screen Holder and the Screens.
● When using a blow gun, start the Bran removal equipment(bag filter, etc.) at the set static pressure.

３

Reassemble Bran Removal Case G in their original positions.

６－８

6.2.6 Cleaning the Bran Duct

Bran Duct Lid

Bran Duct

Pitot PipeKnob Bolt

１

Remove the Knob Bolt and take out the Bran Duct Lid and wipe away thebran inside of the Bran Duct Lid. In case the Pitot Pipe is clogged withbran, remove it.

２

Use a blow gun or vacuum cleaner to clean bran inside of the Bran Duct
Lid.

Note
● Do not use metal scrapers or brushes.
Bran will stick easier to a scratched bran duct orbran duct lid.

３

Reassemble the Bran Duct Lid to its original position.

６－９

6.2.7 Cleaning the Bran Removal Chamber in the Abrasive section
Cover H
Snap
Fastener
Cover G

Cover J１

Remove Cover G, H and Cover J.
● Refer to P.6-4 １ .

６－１０

Bran Straightening
Plate

Case Support A

Bran Case Ｌ

Knob Bolt ②
Knob Bolt①(long)
Bran RemovalChamber

２

Loosen the Knob Bolt① , set Case Support A free, and remove the Knob
Bolt②, then remove the Bran Case L and K (opposite side). Wipe away
any bran inside of the Bran Case.

３

Use a vacuum cleaner to clean any bran in the Bran Removal Chamber.
Wipe away any bran on the Bran Straightening Plate.
Note● Do not use metal scrapers or brushes.
Bran will stick easier to a scratched Bran Case or
Bran Straightening Plate.
● Please do not bend the Bran Straightening Plate.
If you bend them, bran will clog easily.

４Reassemble the removed parts in their original positions.

６－１１

6.2.8 Cleaning the Hopper and Material Feed section
Hopper
Inlet Check Lid

Knob Nut

Feed Port
Knob Bolt
Feed Lid
Feed fitting

１

Remove Cover G, H and J.
● Refer to P.6-4 １ for removing Cover G, H and J.

２

Remove the one side Knob Nut, loosen the other side Knob Nut andremove the Inlet Check Lid.
Remove any foreign objects (bran ball etc.) in the Hopper.

３

Remove the Knob Bolt and remove the Feed Lid, inside the Feed Portand clean the brown rice plaque.

４Reassemble the removed parts in their original positions.

６－１２

6.2.9 Cleaning the Blower Fan Filter

Filter Support

Wing NutFilter

１

Filter Mesh

Vacuum the dust on the filter with a vacuum cleaner. Alternatively,remove the wing nuts (4 pieces), remove the filter,and clean it with a blow gun.
● Replace it when it is damaged or when the dust cannot be removed.

２

Reassemble the parts totheir original positions.

Note● Do not use a blow gun on thefilter while the filter is attached tothe blower fan.

６－１３

6.2.10 Checking for damaged wires and retightening the terminal block
Cover B
Cover C

Cover G, H
Cover J

Operation Panel
CoverKnob Bolt

Abrasive Motor
Friction Motor
Relay Box Door

Frame A

１

Loosen the Knob Bolt and open the Operation Panel Door then check
whether the wires in Relay Box are damaged.
Tighten the terminal block.

２

Remove the Operation Panel Cover and check the internal wires fordamage. Tighten the terminal block.
● Remove bolts M6 (12 pieces) from the operation panel cover.

３

Remove the covers on both sides of the rice mill machine (covers B andC) and inspect the internal wires for damage.
● For covers B and C, remove the four corner bolts M8 (4 pieces).

６－１４

４

Check the wires inside Frame A for damage.
● it is the wire that comes out from the back of the rice milling machineand enters the Relay Box, Inlet section and Abrasive section.

５

Remove the Cover G, H and J and check for damage in the wires in theInlet and Abrasive section.
● Refer to P.6-4 for removing Cover G, H and J １ .

６

Check the Abrasive Motor, Friction Motor and Blower Motor wires fordamage.

７Reassemble the removed parts in their original positions.

６－１５

6.3 Adjusting the Rice Sensor●The rice sensor detects whether brown rice is present. If the mounting positionis wrong, the rice mill will not stop automatically, or may malfunction bystopping automatically during the milling process, etc.

Plastic Nut

Rice Sensor
Sensor Window

１Loosen the plastic nuts on the raw material sensor and set the sensor
approx. 1 mm with the sensor window.
● Check whether the Rice light in the <Milling operations> screen
indicates that materials are present in accordance with the presenceor absence of raw materials.
● Increasing the distance from the sensor window will impede detection.

６－１６

6.4 When rice is stuck● If rice becomes stuck, remove it using the following procedures.

6.4.1 When rice is stuck in the Abrasive section

Inlet section
Feed Lid

Knob Bolt

Abrasive section

１

Check whether the inlet is closed.
If open, press the Inlet close button to close it.

２Turn the power off and remove the Cover G, H and J.
● Refer to P.6-4 １ for removing Cover G, H and J.

３Open the Feed Lid and remove the rice from the Inlet and the Abrasive
section.
● Remove the Knob Bolts from the Feed Lid.
● After removing the rice, reassemble the removed parts in their original
position.

４Reset thermal relay THR3 on the standard power panel.
● Refer to P.6-19「6.4.3 Thermal Relay reset」

６－１７

6.4.2 When rice is stuck in the Friction section

１２１

Check whether the Inlet is closed.
If it opens, press the Inlet Close button to close it.

２

Press the friction resistance ▼ (decrease) button and set friction
resistance to 0.
● Rice is discharged from the friction area.
Note● If the rice is not discharged, turn the power off and turn theV-belt of the friction motor to discharge the rice. (Refer to 1 onpage
注記6-5 “6.2.2 Slack or damage in the friction motor V-belt”)
If the rice is still not discharged, remove the screen. (See “7.1.1
Replacing the screen” on page 7-2.)

３

Reset thermal relay THR2 on the standard power panel.
● Refer to P.6-19「6.4.3 Thermal Relay reset」

６－１８

6.4.3 Thermal Relay reset● After removing the stuck rice, reset the thermal relay.
● The figure below provides a description of the optional standard power panel.
If you are not using the standard power panel, follow the handling instructions
for the thermal relay you are using.

Reset buttonStandardpower panel

Blower Fan
Inverter

Friction motor
Thermal relay

Reset button(blue)

６－１９

Abrasive motor
Thermal relay

１

Turn the power off and press reset button THR2 when the Friction motor
is clogged (the Friction motor has thermally tripped) and press reset
button THR3 when the Abrasive motor is clogged (the Abrasive motorhas thermally tripped).
●When it resets, each Motor thermal light on the touch panel will turn off.

２

To reset the Blower Fan Inverter, turn the power off and turn it on again.
Or press the STOP/RESET key on the inverter itself.
●Once it resets, Abnormal lamp on the touch panel will turn off.

６－２０