Maruyama BSM300 User manual

Instruction Manual
BOOM SPRAYER
BSM300
Conpletely read and understand this manual before using this product

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READ AND SAVE THIS MANUAL
BSM300 INSTRUCTION MANUAL
Preface
Thank you for purchase of this product. This manual explain how
to use, maintain properly for safety & comfortable operation.
Before operation, please read this manual carefully and utilize
this manual to optimize this products at best performance.
Please keep this manual and refer from time to time to
solve problem. Please acknowledge specification is subject to
change without notice, so sometimes matter of this manual is not
coincidence with actual product.
If you have any question, please feel free to contact dealer.
Objective of this product
This product is developed for spraying chemical for field crop.
We are not liable for accident caused by the usage for other
objective or dismantle or modification without admission.
Caution
Please follow caution label attached on machine.
Danger- If you do not follow instruction, it will cause death or serious injury.
Warning if you do not follow instruction, it may cause death or serious injury.
Caution If you do not follow instruction, it may hurt you.
Caution If you do not follow instruction, it may cause accident of machine.
When you lend this product to others.
Please explain how to use this product to whom you lend, and explain each
caution label (Indicated by )
Please hand over this manual so that borrower understand how to use before
operation so that your kindness may not be spoiled.
In addition, please explain to your family how to use who may use this product.

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CONTENTS
１ For safety operation ………………………………………………………………………… ３
２ Portion’s name ＆ accessories …………………………………………………………… ５
３ Specification ………………………………………………………………………………… ７
４ Caution label ……………………………………………………………………………… ８
５ How to mount tractor ……………………………………………………………………… ９
６ Explanation of each portion ……………………………………………………………… １２
■Stand ………………………………………………………………………………… １２
■Pump ………………………………………………………………………………… １３
■Chemical tank ………………………………………………………………………… １３
■Jet nozzle …………………………………………………………………………… １５
■Mast frame …………………………………………………………………………… １５
■Suction strainer／Water feeding valve ……………………………………………… １６
■Pressure adjusting device …………………………………………………………… １６
■Spray cock ………………………………………………………………………… １７
■Boom device ………………………………………………………………………… １７
How to open & close boom …………………………………………………………… １８
How to adjust spray height …………………………………………………………… １９
■Step ………………………………………………………………………………… ２０
７ Spray planning …………………………………………………………………………… ２１
８ Inspection before operation ……………………………………………………………… ２２
９ How to feed water ………………………………………………………………………… ２２
１０ Check Spray ……………………………………………………………………………… ２３
１１ Caution for spray work …………………………………………………………………… ２４
１２ Mixture of chemical and handing ……………………………………………………… ２４
１３ Spray work ………………………………………………………………………………… ２５
１４ Stop operation …………………………………………………………………………… ２６
１５ After operation …………………………………………………………………………… ２６
１６ Inspection ………………………………………………………………………………… ２７
■Installation bolt ＆ nut ………………………………………………………………… ２８
■Side boom …………………………………………………………………………… ２８
■Pump ………………………………………………………………………………… ２８
■Strainer ……………………………………………………………………………… ２９
■Suction strainer ……………………………………………………………………… ２９
■Chemical water piping ……………………………………………………………… ２９
■Nozzle …………………………………………………………………………………… ２９
■Jet nozzle ……………………………………………………………………………… ３０
１７ Lubrication ………………………………………………………………………………… ３０
１８ Long term storage …………………………………………………………………………… ３０
１９ Piping diagram ……………………………………………………………………………… ３１
２０ Trouble shooting …………………………………………………………………………… ３２
２１ Consumable parts list ……………………………………………………………………… ３３
２２ Periodical replacement parts list …………………………………………………………… ３３

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1. For safety operation
(1) Please read and follow the instruction manual of chemical, optional device,
and operate correctly.
①Please operate tractor with boom sprayer at the area within 5°slope.
②Please wear safety gear, such as helmet, glove and mask, and wear the suitable
cloths.
③Please inspect or repair boom sprayer at flat area. If you inspect while boom
sprayer
is mounted on tractor, stop engine at flat area and place parking brake, pull out
key then unfold the stand of boom sprayer. Otherwise tractor may move and cause
accident.
(2) Caution for mounting boom sprayer with tractor
①Please read tractor’s instruction manual and master to operate tractor.
②At flat area, please stop engine, PTO of tractor and be sure to inspect tractor &
boom sprayer before operation. Please refer page “INSPECTION BEFORE
OPERATION” (Refer to P.22)
③Do not allow person to be between tractor & boom sprayer. It may cause serious
Accident.
④Universal joint and wiring should be connected properly, otherwise it may cause
trouble.
⑤Applicable Tractor to be amounted with BOOM sprayer should be complied with
guidance of manual. Depending on tractor, total weight and weight balance for
front & rear will be changed.
Please use front weight so that burden on front wheel will be more than 20% of
total weight. If the balance is not proper, tractor’s front wheel will float in the air
and cause accident. Especially, if you attach optional accessory later, total weight
will be changed.
(3) Operation
①Before operation, please check the connection of universal joint, wiring and
installation of option.
②Do not operate at too high speed, at sudden acceleration, sudden brake, sudden
④Keep away the person except operator at the
site of spraying. It may cause accident.
⑤Be careful not to contaminate tap water
source, river, pond and lake.
⑥Do not refill fuel nearby flame. It may cause
fire. And do not smoke while refill fuel.
Check the spray pressure and adjustment by pure water.

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turn. Please drive & operate safely.
③When you travel to plot, be sure to close the side boom. (Refer to P.18)
④When you get in and get out plot, or cross the dike or ditch, or pass through mad
area,
⑤When you climb up, travel backward so that tractor may not fall down.
(4)STORAGE
(5) Tire stopper
In order to park the tractor safely, please prepare concrete block, or wooden
block( more than 10cm square, 30cm length). Tire stopper is used at slope area, for
left and right wheel at lower level.
Cut
More than 30cm
More than 10cm
More than 10cm More than 10cm
More than 10cm
Depending on remained chemical in chemical
tank, gravity point is changed and
Balance will be unstable. After feeding water in
chemical tank, be careful for safety more.
①Please store boom sprayer at flat area
after inspection and maintenance while
stand is unfold.
②When you store boom sprayer as it is
mounted on tractor, be sure to unfold the
stand and put the boom sprayer on the
ground and store it.

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2. Portion name & accessories
Front
Left
Right
Rear
①
⑲
② ④ ⑤ ⑥
⑧ ③
⑨ ⑦
Inside in tank
⑩ ⑪ ⑫
⑭ ⑬ ⑮
⑯ ⑰ ⑱ ⑯

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■PORTION’S NAME Page
ITEM
NO. NAME
① LEFT BOOM (SIDE BOOM) 9, 17, 18
② RIGHTBOOM(SIDE BOOM) 9, 17, 18
③ CENTER BOOM 17, 19
④ CHEMICAL TANK 13, 14, 15
⑤ CHEMICAL TANK LID 14
⑥ MAST FRAME 15
⑦ STAND 12
⑧ STEP 20
⑨ BOOM HOLDER 9, 18, 19
⑩ WATER SUCTION STRAINER 16, 26, 27, 29, 31, 32, 33
⑪ WATER FEEDING VALVE 16, 23, 25
⑫ PUMP 13, 27, 28, 29, 30, 32, 33
⑬ PRESSURE GAUGE 16
⑭ SPRAYER COCK 17, 23, 25, 30, 32
⑮ PRESSURE ADJUSTING
DIAL 16, 23, 25, 32
⑯ LOWER LINK PIN 10
⑰ TOP LINK PIN （※） 10, 11
⑱ CRANK SHAFT 10, 29
⑲ JET NOZZLE 15, 26, 27, 30, 33
※Top link pin & linch pin to fix top link pin are provided with tractor.
■ACCESSORIES
Name P/N Q'ty Remark
Instruction manual ****** 1 This manual
Universal joint 567287 1
key 567183 1 5×5×25 (For universal joint installation)
Bolt(Hex) 567184 1 M8×35( For universal joint installation)
Nut(Hex) 567167 1 M8 ( For universal joint installation)

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3. Specification
BSM300
Model name For field crop
■Applicable tractor
Dry weight kg Over 1100（※1 ※2）
Mounting 3 points linkage
Deck Open
■Dimension・weight
Dimension（L×W×H）mm 2850×1850×1445
Boom open width mm 7330
Dry weight Kg 115
Equipment weight Kg 420
■Chemical tank
Capacity（Max）L300（310）
Material LLDPE
Agitation in tank Jet
■Pump
Model MS330
Operation rpm Rpm 580－820
Operation pressure MPa 0.5－2.0
Suction volume L/min 23.4（at 820rpm）
■Boom device
Spray width M 7.8
Open & Close Manual，Ford forward
Height 8steps
Scope ｍm 300－1200（※3）
Nozzle & Q’ty 2 Direction
New wide・13pcs
Nozzle pitch ｍm600
Spray volume L/min 10.5（at 2.0MPa）
Boom safety device Spring release
※１. Please install front weight. Please ask dealer shop nearby.
※２. Even though dry weight is less than 1,100kg, some tractor is applicable for
this sprayer. Please ask dealer shop.
※３.Spray height at 300mm is adjusted by lower link operation.
BSM300 Dimension（mm）
Ｌ（2850）Ｗ（1850）
Ｈ（1445）

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4. Caution label
WARNING
※On the chemical tank, there are following caution label. So please read carefully and
understand before operation.
●Please wipe mud on label to make it visible.
●In case caution label is torn, please replace to new one.
●Please attach new label at same space where old label was attached.
①Ｐ/Ｎ：５６７２３０ ②Ｐ/Ｎ：５６７２３１
③Ｐ/Ｎ：５６７２７０
①
②
③

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5. How to mount on tractor
WARNING
Preparation of Boom side
①When you install with tractor, side boom should be opened 20degree so that tractor
tire & boom will not contact.
*Here, we explain by left boom, but by right boom also same procedure.
(1) Pull up shaft lock pin arm which fix the side boom to release lock.
(2) While holding the side boom so that it may not move accidentally, then
Pull out the shaft lock pin by the other hand.
(3)Remove side boom from boom holder, open the boom for 20degree, and insert shaft
lock pin where upper & lower pin hole are coincident.
Arm
Shaft
OPEN
LOCK
●For safety, be sure to attach boom sprayer with tractor alone.
●When you attach & remove boom sprayer with tractor, be sure that the chemical tank
is empty and boom is open for 20°.Otherwise gravity is not stable and it may cause
accident.
●Park the tractor & place the boom sprayer on flat area.
●Applicable tractor should be more than 1,100kg (dry weight) and front weight may.
Be required depending on tractor model. Please consult with dealer.
20°

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(4) Pull down shaft lock pin arm to lock it.
(5) Please do the same procedure for another boom as well.
②Install universal joint with pump’s crank shaft (input shaft)
(1)Put parallel key on crank shaft’s key groove and coat grease on it then install
universal joint until end.
(2)Fix universal joint with hexagon head bolt through hexagon nut.
(Provided as accessory)
(3)Then fasten by hexagon nut to lock bolt.
Preparation of tractor side
①Make the right & left tractor’s lower link same level.
Please refer to tractor’s instruction manual
②Attach top link with tractor.
Installation with tractor
①While adjusting direction of center of boom prayer, drive tractor backward slowly, to
boom sprayer, and stop the engine.
②Push the rear wheel by hand and adjust the position of left lower link of tractor and
Lower link pin of boom sprayer.
CAUTION
③Insert left lower link of tractor to lower link pin, then fix it by linch pin
※Status of fixed lower link by linch pin.
Universal joint
Hexagon nut(M8)
Hexagon bolt (M8×35)
Parallel key (5×5×25)
Coat grease and install it.
●If right lower link touch to boom sprayer, and left lower link can not lift up, adjust
Right stabilizer and open clearance, and be sure not to touch, otherwise you may
Hurt your hands.

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④Insert right lower link and fix it by fastening pin. (Right lower link can be up & down
by rotating adjusting handle.)
CAUTION
⑤Place parking brake of tractor and confirm whether PTO is OFF, and start engine
and lift up lower link slowly, then attach top link to boom sprayer and fix it by
linchpin.
WARNING
CAUTION
⑥Stop tractor engine, and install universal joint with tractor PTO shaft.
WARNING
※Please coat grease on PTO shaft of tractor side.
⑦Adjust the stabilizer of lower link of tractor and fix the boom sprayer.
⑧Please confirm whether boom sprayer is totally installed and fold the stand .
●Balance of right & left can be adjusted to be horizontal by rotating right lower link
adjusting handle. （Please refer to tractor manual）
●Top link pin & linchpin to fix top link pin are provided with tractor.
●Be careful in operating lift up lever of lower link. Too higher lift causes hitting and
damage to tractor and sprayer.
●Please operate lower link slowly & carefully. And be sure there is no any other person
between tractor & boom sprayer. If you move lower link suddenly, boom sprayer will
Approach rapidly to tractor or fall over backward, and cause serious accident.
●When you install universal joint, stop tractor engine, place parking brake and turn
PTO off.

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6. Explanation of each portion
■STAND
Stand is used when you attach and detach boom sprayer with tractor.
WARNING
HOW TO SET STAND
①Please lift up lower link by shift lever then confirm stand is not contacting on
ground.
②Pull out the snap pin and pull out stand pin while holding stand by hand.
③After unfold the stand to the end insert stand pin indicated in sketch and install
snap pin.
④Move the stand back and forth to confirm whether it is surely locked.
HOW TO FOLD STAND
①Please lift up lower link by shift lever then confirm stand is not contacting on
ground.
②Remove snap pin, and pull out stand pin while holding stand by hand.
③Fold stand and insert stand pin indicated in sketch then install snap pin.
④Move the stand up and down to confirm whether it is surely locked.
Snap piｎto be inserted.
Pin to be inserted.
●When you unfold the stand, hold the stand by hand then pull out the pin and Unfold
it.
Stand.
Stand pin.

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■PUMP
It suctions the chemical liquid in chemical tank, the feed as pressurized.
CAUTION
■CHEMICAL TANK
This container stores mixed chemical. Maximum capacity is 310Litre.
CAUTION
Oil inlet.
Lubricant.
Chemical tank
Pump
●Tractor’s PTO speed should be at 580-820rpm. If PTO rpm is too high or too low, it
will cause unevenness of spray or trouble of pump.
●Please lubricate oil (equivalent to SAE10W-30)to 3holes for 3-5 drops every time
Before operation.
●If you travel tractor while water is full in the tank, chemical water may leak from
tank lid. Please fill water up to around 300L.

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When you open lid of chemical tank, rotate counter clockwise, then release lock and
open it. When you close it, rotate clockwise and surely lock it.
The strainer of chemical tank will filter rubbish when you feed water or mixed
chemical.
CAUTION
There is measure gauge at the left side of chemical tank. Please check the volume at
horizontal area.
Open
Lock
Measurement
tube for remain
chemical
●Please clean strainer every time after operation. You can remove it by pulling out.

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■JET NOZZLE
This device agitate the chemical inside chemical tank. Scroll nozzle should be
replaced at every 500hours operation.
CAUTION
■MAST FRAME
The frame which center boom is installed with. You can change the spray height
By changing position of installation of center boom with mast frame.
Please refer to the page of P19
Jet nozzle
Mast frame
●If the jet nozzle is clogged, chemical will not be agitated smoothly and it may
Cause harmful effect of chemical.
●If jet nozzle is worn, sprayer’s performance may get worse such as sprayer’s pressure
will not increase or discharge volume will decrease.

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■SUCTION STRAINER／WATER FEEDING VALVE
Suction strainer filter the rubbish in chemical tank. You can remove it from strainer
itself by loosening nut. When there is remained chemical in chemical tank, please
clean strainer while water feeding valve is closed.
WARNING
CAUTION
■PRESSURE ADJUSTING DEVICE
It adjust the pressure of pump. If you rotate pressure adjusting dial clockwise,
Pressure will increase, and rotate it counter clock wise, pressure will decrease.
Discharging volume will be measured by pressure gauge.
Pressure gauge
Pressure adjusting dial
●If you remove strainer while feeding valve is open while there is remained chemical in
Chemical tank, you will be exposed by chemical or it will flow out accidentally.
●When you remove suction strainer, even though the feeding valve is closed, remained
chemical in suction strainer or piping will come out, so please prepare the container to
retrieve
●When you operate pump, be sure to open feeding valve. If you operate
while feeding valve is closed, it may cause damage of power sprayer.
●Please clean suction strainer every time after operation. After cleaning, be sure to
tighten the nut.
Lever
Cap
OPEN Suction strainer
O-Ring
SUCTION STRAINER

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IMPORTANT
■SPRAY COCK
When you position pump cock on “ OPEN”, chemical will come out from nozzle, and if
you position at “CLOSE”, spray will be stopped. You can operate LEFT, CENTER, &
RIGHT nozzle independently.
■BOOM DEVICE
It will spray from nozzle. Boom consists of 3 portion (Left, Center & Right Boom)
Side boom can be folded forward, and it is folded by manual.
IMPORTANT
Left boom nozzle
Close
Open
Spray cock
Center boom nozzle
Right boom nozzle
●When you pause or finish spraying work, first, please decrease pressure by rotate
pressure adjusting dial counter clockwise, then stop PTO.
●When you travel and store, please fold side boom.
Right boom
（Side boom）
Center boom
Left boom
（Side boom）

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HOW TO OPEN SIDE BOOM
CAUTION
①Pull out shaft lock pin arm fixing side boom then release lock.
※Please refer to page P9
②Please hold the side boom so as not to move accidentally, then pull out lock pin by
the other hand.
③Please open side boom up to horizontal position, and adjust upper & lower pin
hole. Then insert shaft lock pin.
④Pull down shaft lock pin arm then lock the position of boom.
CAUTION
⑤When you close side boom, please follow reverse procedure of opening boom.
CAUTION
●When you open or close boom, make sure there is no obstacles within 5m radius.
●Shaft lock pin should be locked by arm.
●When you close side boom, be sure to place boom on boom holder.
●While storage & traveling, be sure to place boom on boom holder. Otherwise, boom or
boom holder will be damaged.
●When you place side boom on boom holder, please confirm whether bolt under boom
holder contact on lower side of side boom. In case they don’t contact each other, adjust
bolt so that they contact lightly.

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HOW TO ADJSUTMENT OF SPRAY HEIGHT.
Depending on grass height, you can change the spray height by 10cm pitch.
Maximum spray height is 1.2m.
CAUTION
①Make sure that the tractor’s hydraulic is locked.
②Place the parking brake of tractor, stop engine and pull out the key.
③2 person hold the center boom’s both end.
④Other 1person loosen the 4bolts center boom and remove it.
⑤Adjust the center boom for desirable height and fix by 4bolts which were Taken
by previous procedure.
If you want to adjust the position where is no nut welded on mast frame, please
●Please change spray height by 3persons for safety.
(Boom portion’s weight is approx 20kg)
●Change the spray height while side(Left & Right) boom is open.
Adjust bolt so that lower side of boom & lower bolt of boom
holder contact each other. If they don’t contact, loosen lower
bolt to adjust.