6 Inspections,adjustments, maintenance● The following precautions apply to inspection, adjustment, and maintenance.

Danger
Maintenance andinspection of the rice
milling machine must beperformed 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 inthe 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 and maintenance overview
6.2.1 Slack or damage in the abrasive motor V-belt

Cover K

Snap
Fastener

Bolt M8

Belt cover D
Tension bolt

Nut M20
Tighten to avoid
slipping.

１

Remove cover K and belt cover D, and turn the V-belt while inspecting
for slack or damage.
● To remove cover K, unfasten the Snap Fastenerand lift thehandle up.
● For belt cover D, remove bolts M8 (4 pieces) on both sides.

２If there is slack, use accessory wrench 30 to loosen nut M20 on thetension bolts and tighten the belt to prevent slipping in
the direction of the arrow.
If there is damage, loosen nut M20 further and replace.

３Tighten nut M20 firmly.
Reassemble the removed cover to its original position.
６－４

6.2.2 Slack or damage in the friction motor V-belt

Tension bolt
Nut M30

M8 boltBelt cover B
Tightentoavoidslipping

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

If there is slack, use accessory wrench 46 to loosen nut M30 on thetension bolts and tighten the belt to prevent slipping in
the direction of the arrow.
If there is damage, loosen nut M30 further and replace.

３

Tighten nut M30 firmly.
Reassemble the removed cover to its original position.

６－５

6.2.3 Slack or damage in the raw material feed V-belt
Bolt M6

Tension pulleyTension coil spring
Raw material feedV-belt

Tension plate D

１

Remove cover K and belt cover D.

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 pulley,and replace.

３

Reassemble the removed parts in their original positions.

６－６

6.2.4 Cleaning the outlet

Outlet window

Outlet１

Open the Outlet window and wipe away any bran attached to the Outlet
with a soft cloth.

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

６－７

6.2.5 Cleaning the bran removal chamber in the friction section

Bran case G
Bran case H

Snap Fastener
Bran removalchamber

１

Open the Snap Fastener, remove bran case G and H and wipe away anybran inside the bran cases.
Note● Do not use metal scrapers or brushes.
Bran will stick easier to scratched surface.

２Using an blow gun or vacuum cleaner, clean any bran on the branremoval chamber, the screen holder, and the screen.
● When using a blow gun, start the bran removal equipment (bag filter,etc.) at the set static pressure.

３

Reassemble bran removal case G and H in their original positions.

６－８

6.2.6 Cleaning the bran duct

Bran duct

Snap Fastener
Bran duct lid

１

Unfason the Snap Fastener (2 pices), remove the bran duct lid and wipeaway and bran on the inside of the bran duct lid.

２

Use a blow gun or vacuum cleaner to clean bran on the inside of thebran 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 friction section

Cover HCover JPullbackwards

１

Remove cover K.

２

Remove cover H and cover J.

６－１０

Bran removal chamber②③①Knob bolt
Branstraigtening
plate

３

Bran case L

Remove the knob bolt and remove case L and case K (opposite side)
following the order shown in the Figure, and then wipe away any bran on

the inside of the bran removal case.

４

Use a vacuum cleaner to clean any bran in the bran removal room.
Wipe away any bran on the bran straigtening plate.
Note● Do not use metal scrapers or brushes.
Bran will stick easier to a scratched bran case or branstraigtening plate.
● Please do not bend the bran straigtening plate.
If you bend them,bran will clog easily.

５

Reassemble the removed parts in their original positions.

６－１１

6.2.8 Cleaning the hopper and the raw material feed section
Hopper(InletB)

Inlet check lidChinspection lid

Knob nut

Feed port②①
Feed fitting
Feed lid

Knob bolt

１Remove covers H, J, and K.

２

Remove the knob nuts, remove the inlet check lid, and remove any
foreign objects (bran balls, etc.) in the hopper.

３

Remove the knob bolt and remove the feed lid feed port following theorder shown in the Figure, and clean any brownrice residue inside of the feed and the feed port.

４

Ressemble the removed parts in their original positions.

６－１２

6.2.9 Cleaning the blower fan filter

Filter holder

Wing nut

Filter１

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

２

Ressemble 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 G

Operation panel
coverInlet
Cover K

Cover H
Abrasive
sectionCover B
Cover C
Abrasivemotor

Friction motor

１

Frame A
Relay box

Open the relay box door and check the relay box for damaged
wires.Tighten the terminal block.

２

Remove the operation panel cover and check the internal wires fordamage.Tighten the terminal block.
● Remove bolts M6 (6 pices) 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 pices).

６－１４

４

Check the wires inside frame A for damage.
● It is the wire that comes out from the back of the rice mill machine andenters the relay box, supply area, and abrasive section.

５

Remove covers G, H, J, and K and check for damage in the wires in theinlet and abrasive section.
● Remove the top two knob bolts securing cover G and remove cover G.

６

Check the abrasive motor and the friction motor wires for damage.

７

Reassemble 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.

HopperSensor window

Rice sensor

HopperPlastic nut

A red lamp is located atthe end

Rice sensor

１Approximately
1.0 mmLoosen the plastic nuts on the raw material sensor and set the sensor
approx. 1 mm with the sensor window.
● Check whether theRicelight 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

Abrasive section

Feed lidinspection

１Knob bolt

Check whether the inlet is closed.
If open, press theInlet closebutton to close it.

２Turn the power off and remove covers H, J, and K.

３Open the feed lid and remove the rice from the inlet and the abrasive
section.
● Remove the knob bolts (2 pieces) from the feed lid.
● After removing the rice, reassemble the removed parts in their originalposition.

４

Reset thermal relay THR3 on the standard power board.
● Refer to page 6-18 “6.4.3 Thermal relay reset”.

６－１７

6.4.2 When rice is stuck in the friction section

１
２

１

Check whether the inlet is closed.
If open, press theInlet Closebutton 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 on
page 6-5 “6.2.2 Slack or damage in the friction motor V-belt”)
If the rice is still not discharged, remove the screen.

３Reset thermal relay THR2 on the standard power panel.
● Refer to page 6-20 “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.

Standard power panel

Friction motor
thermal relay

１

Reset button (blue)

Abrasive motor
thermal relay

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 motor
has thermally tripped).
● When reset, eachMotor thermallight on the touch panel will turn off.

６－１９