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Kubota BX2350 BX2350D Tractor Mower Front Loader Full Service & Repair Manual
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BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX, LA203, LA243, WSM
SAFETY INSTRUCTIONS
A SAFETY FIRST
This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on
the machine itself to warn of the possibility of personal injury. Read these instructions carefully.
It is essential that you read the instructions and safety regulations before you attempt to repair or use
this unit.
A DANGER : Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
A WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
A CAUTION : Indicates a potentially hazardous situation which, if not avoided, may result in
minor or moderate injury.
• IMPORTANT : Indicates that equipment or property damage could result if instructions are not
followed.
• NOTE : Gives helpful information .
BEFORE SERVICING AND REPAIRING
• Read all instructions and safety instructions in this
manual and on your machine safety decals.
• Clean the work area and machine.
• Park the machine on a firm and level ground, and set
the parking brake.
• Lower the implement to the ground.
• Stop the engine. and remove the key.
• Disconnect the battery negative cable.
• Hang a ''~O NOT OPERATE" tag in operator
station.

BX1850, BX2350, RCK48(P)-18BX, RCK54(P}-23BX, RCK60B-23BX,
SAFETY INSTRUCTIONS
•
+ -
SAFETY STARTING
• Do not start the engine by shorting across starter
terminals or bypassing the safety start switch.
• Do not alter or remove any part of machine safety
system.
• Before starting the engine, make sure that all shift
levers are in neutral positions or in disengaged
positions.
• Never start the engine while standing on ground.
Start the engine only from operator's seat.
SAFETY WORKING
• Do not work on the machine while under the influence
of alcohol, medication, or other substances or while
fatigued.
• Wear close fitting clothing and safety equipment
appropriate to the job.
• Use tools appropriate to the work. Makeshift tools,
parts, and procedures are not recommended.
• When servicing is performed together by two or more
persons, take care to perform all work safely.
• Do not work under the machine that is supported
solely by a jack. Always support the machine by
safety stands.
• Do not touch the rotating or hot parts while the engine
is running.
• Never remove the radiator cap while the engine is
running, or immediately after stopping. Otherwise, hot
water will spout out from radiator. Only remove
radiator cap when cool enough to touch with bare
hands. Slowly loosen the cap to first stop to relieve
pressure before removing completely.
• Escaping fluid (fuel or hydraulic oil) under pressure
can penetrate the skin causing serious injury. Relieve
pressure before disconnecting hydraulic or fuel lines.
Tighten all connections before applying pressure.
AVOID FIRES
• Fuel is extremely flammable and explosive under
certain conditions. Do not smoke or allow flames or
sparks in your working area .
• To avoid sparks from an accidental short circuit,
always disconnect the battery negative cable first and
connect it last.
• Battery gas can explode. Keep sparks and open
flame away from the top of battery, especially when
charging the battery.
• Make sure that no fuel has been spilled on the engine.
2

BX1850, BX2350. RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX. LA203. LA243. WSM
SAFETY INSTRUCTIONS
VENTILATE WORK AREA
• If the engine must be running to do some work, make
sure the area is well ventilated. Never run the engine
in a closed area. The exhaust gas contains poisonous
carbon monoxide.
PREVENT ACID BURNS
• Sulfuric acid in battery electrolyte is poisonous. It is
strong enough to burn skin, clothing and cause
blindness if splashed into eyes. Keep electrolyte
away from eyes, hands and clothing. If you spill
electrolyte on yourself, flush with water, and get
medical attention immediately.
DISPOSE OF FLUIDS PROPERLY
• Do not pour fluids into the ground, down a drain, or
into a stream, pond, or lake. Observe relevant
environmental protection regulations when disposing
of oil, fuel, coolant, electrolyte and other harmful
waste.
PREPARE FOR EMERGENCIES
• Keep a first aid kit and fire extinguisher handy at all
times.
• Keep emergency numbers for doctors, ambulance
service, hospital and fire department near your
telephone.
3

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX, SAFETY INSTRUCTIONS
SAFETY DECALS
The following safety decals are installed on the machine.
If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in
the parts list.
(1) Part No. K2581-6557-1
r '" c-o ," ':,',
"- .- -" --
-- ~ -- ~~-"' --,
~ ,~~ lI~ -
.
-
.,
- -
~ ~ -~-~ ~ - :): J '" I
1AGAJAXAP041 E
(2) Part No. K2581-6548-1 (5) Part No. K2581-6549-1
Diesel fuel No fire
only
[i]~
1AGAMAAAP2480
(3) Part No, 6C140-4746-1
AWARNING
TO AVOID PERSONAL
INJURY:
Do not modify or repair
a ROPS because welding,
grinding, drilling or
cutting any portion may
weaken the structure,
lAGAJAXAP045E
(4) Part No. K2581-6552-1
Do not put hands
under the rear fender.
AWARNING,
~
TO AVOID P:RSONAL INJUqy
KEEP HAiJOS M,A 1 FRQII
PH'ICH PQI\lS OF LlF; Aq',IS
1AGAJAXAP047E
,..-....,."'-'-"-_(3)
3TAAAAFCP003A
4

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX, LA203, LA243, WSM
SAFETY INSTRUCTIONS
(1) Part No. K2581-6554-1 (2) Part No. K2581-6555-1
•
TO AVO I 0 PERSONAL I NJlIRY
FROII SEPARAT ION
GROOVE . i.,
GROOVE
DO NOT Exmm LIFT ROD BEYOND
THE GROOVE ON THE THREADED ROD
1AGAJAXAP044E
.... ".'
(3) Part No. K2561-6556-1
~
TO AVOID PERSONAL INJURY:
1. Attach pullell or towell
loalls to the hitch only.
2. Use the 3-point hitch only
with equiPlllent lIesilJnel1 for
3-IJoint hitch usage.
1AGAJAXAP046E
3TAAAAFCP004A
5

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX,
SAFETY INSTRUCTIONS
(1) Part No. K2581-6557-1 (2) Part No. K2581-6547-1
Stay clear of engine tan
and tanbelt
(3) Part No. K2581-6542-1 (4) Part No. K2581-6543-1
Do not touch hot
surface like muffler, etc.
I~I~I
1AGAJAXAP050E
1AGAJAXAP048E
1AGAJAXAP049E
1AGAJAXAP052E
3TAAAAFCP005A
6

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX, LA203, LA243, WSM SAFETY INSTRUCTIONS
(1) Part No. K2561-6115-1 (2) Part No. K2561-6116-1
KEEP OUT OF THE REACH OF CHILOREN.
DO NOT TIP. DO NOT OPEN BATTERYI
FLUSH ~GET
EYES MEDICAL
IMMEDIATELY · HELP
WITH WATER FAST
1AGAJAXAP053E
I
I
I
EXPLOSIVE I
GASESCAN CAUSE I
BUNDNESS DR INJURY
NO
• SPARKS
• FLAMES
• SMOKING
1AGAJAXAP054E
CARES FOR SAFElY ALERT LABELS
1. Always keep the labels clean and avoid damaging them.
If a label is dirty, clean it with soap and water. Then wipe it wilh a soft cloth.
Never use a solvent like thinner or acetone, which may erase letters or symbols.
2. When you wash the machine using a high pressure washer, do not pour high pressure water directly on any label to prevent it
from peeling off.
3. If any label is damaged or missing, place an order wilh your dealer for replacement.
4. Before you affix a new label, completely clean the surface on which the label is placed. Wait until the surface is dry, and then affix
5. the label in its place.
When you replace any part carrying a label, replace the label with a new one at the same time.
3TAAAAFCP006A
7

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX,
SPECIFICATIONS
SPECIFICATIONS
Model BX1850 BX2350
PTO power 10.2 kW (13.7 HPt 13.2 kW (17.7 HP)*
Maker KUBOTA
Model D722-E2-BX-2 D902-E2-BX-2
Type Indirect Injection, vertical, water-cooled, 4-cycle diesel
i
Number of cylinders 3
Bore and stroke 67 x 68 mm (2.64 x 2.68 in.) 72 x 73.6 mm (2.83 x 2.90 in.)
I
Total displacement 719 cm;:! (43.9 cu. in.) 898 em;; (54.8 cu.in.)
Engine
Engine gross power 13.4 kW (18.0 HP) 17.1 kW (23.0 HP)
i
Rated revolution 53.3 rls [3200 min-
1
(rpm)]
Maximum torque 44.9 N'm (4.6 kgf-m, 33.1 ft-Ibs) 56.1 N'm (5.7 kgf-m, 41.4 ft-Ibs)
Battery 12 V, CCA : 435 A, RC : 62 min.
I
12 V, CCA : 535 A, RC : 80 min.
Starting system Electric starting with cell starter, 12 V, 1.4 kW
Lubrication system Forced lubrication by trochoidal pump
Cooling system Pressurized radiator, forced circulation with water pump
Fuel Diesel fuel No. 2-D [above -10·C (14 OF)], Diesel fuel No.1 [below -10·C (14 OF)]
Fuel tank 25 L (6.6 U.S.gals, 5.5 Imp.gals.)
Engine crankcase (with filter) 2.9 L (3.1 U.S.qts., 2.6 Imp.qts.) 3.1 L (3.3 U.S.qts., 2.7 Imp.qts.)
Capacities Engine coolant (with recovery tank) 2.9 L (3.1 U.S.qts., 2.6 Imp.qts.) 3.1 L (3.3 U.S.qts., 2.7 Imp.qts.)
Transmission case 11.6 L (3.06 U.S.gals, 2.55 Imp.gals.)
Front axle case 23 L (2.4 U.S.qts., 2.0 Imp.qts.) 4.7 L (5.0 U.S.qts., 4.1 Imp.qts.)
Overall length (without 3P) 2035 mm (80 1 in.) 2120 mm (83.5 in.)
Overall width 1145 mm (45.1 in.)
Overall height (with ROPS) 1760 mm (69.3 in.) 1785 mm (70.3 in.)
Dimensions
Overall height (Top of seat) 1230 mm (48.4 in.) 1255 mm (49.4 in.)
Wheelbase 1340 mm (52.8 in.) 1400 mm (55.1 in.)
Minimum ground clearance 150 mm (5.9 in.) 175 mm (6.9 in.)
Front 880 mm (34.6 in.) 910 mm (35.8 in.)
Tread
Rear 820 mm (32.2 in.)
Weight (with ROPS) 550 kg (1213 Ibs) 565 kg (1245.6 Ibs)
! Tires
Front 16 x 7.50 - 8 (Turf) 18 x 8.50 -10 (Turf)
Rear 24 x 12.00 -12 (Turf) 26 x 12.00 -12 (Turf)
Steering Hydrostatic power steering
Travelling
Transmission Main-hydrostatic transmission, Range gear shift (2 forward and 2 reverse)
system
Brake Wet disk type
Min. turning radius (without brake) 2.18 m (7.15 feet) 2.3 m (7.5 feet)
I
Differential Bevel gear
Hydraulic control system Directional control, auto-return lever system
Hydraulic
Pump capacity 23.5 Umin. (6.2 U.S.gals.lmin., 5.2 Imp.gals.lmin.)
system
Three point hitch SAE Category I
I
Max. lift force 5394 N (550 kg, 1210 Ibs)
! Clutch
Wet type, multiple disks
PTO shaft SAE 1-3/8, 6 splines
Rear
Revolution 1 speed (540 min-
1
(rpm) at engine 3142 min" (rpm»
PTO system
I
PTO shaft USA No.5 (KUBOTA 10-tooth) involute spline
Mid
Revolution 1 speed (2500 min-
1
(rpm) at engine 3043 min" (rpm»
NOTE: • Manufacture's estimate
The company reserves the right to change the specifications without notice.
W1028103
8

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX, LA203, LA243, WSM TRAVELLING SPEEDS
TRAVELLING SPEEDS
Model BX1850 BX2350
Tire size (Rear) 24 x 12.00 -12 26x12.00 12
Range gear shift lever km/h mph km/h
Forward
Low oto 5.5 oto 3.4 oto 6.0 oto 3.7
High Ot012.0 oto 7.5 o to 13.0 oto 8.1
Reverse
Low o to 4.0 oto 2.5 o to 4.5 oto 2.8
High o to 9.0 oto 5.6 oto 10.0 oto 6.2
The company reserves the right to change the specifications without notice.
W1035065
9

BX1850, BX2350, RCK48(P)-18BX, RCK54(P)-23BX, RCK60B-23BX,
DIMENSIONS
DIMENSIONS
0
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coco
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E E
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~~
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xx
fB.fB.
.5.5
,..-.:1'
!~
E E
E E
~~
1340 mm (52.8 in.) [BX1850]
1400 mm (55.1 in.) [BX2350]
,
I
o '
\,.....,..."..-.......-------..........~-----L---
•
,
I
,
I
3TAAAAFP005A
10
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The Kubota BX2350 BX2350D Tractor Mower Front Loader Full Service & Repair Manual is a comprehensive factory workshop manual designed for instant access on your computer, tablet, or smartphone. This professional manual is an invaluable resource for both professional mechanics and DIY enthusiasts, covering all repair, servicing, and troubleshooting procedures with detailed photos, diagrams, and step-by-step instructions. You can easily print out individual pages or the entire manual, and it can be used on multiple computers without any limitations or expiration. The manual is fully compatible with both Windows and MAC computers, providing lifelong access without the need for renewal or additional fees.