Kubota L2350 Tractor Factory Service Repair Manual
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WORKSHOP MANUAL .
TRACTOR
L2350
L2650(GST) L2950(GST)
L3450(GST) L3650(GST)
TO THE READER
This Workshop Manual has been prepared to provide servicing personnel with
information on the mechanism, service and maintenance of KUBOTA Tractors
L2350, L2650, L2950, L3450 and L3650 It is divided into two parts, "Mechanism"
and "Servicing".
• Mechanism
Information on the construction and function are included for each section.
This part should be understood before proceeding with troubleshooting,
disassembling and servicing.
• Servicing
Under the heading "General" comes general precautions, check and
maintenance and special tools. For each section, there are troubleshooting,
servicing specification lists, checking and adjusting, disassembling and
assemb ling, and servicing which cover procedures, precautions, factory
specifications and allowable limits .
All information, illustrations and specifications contained in this manual are
based on the latest production information available at the time of publication
The right is reserved to make changes in all information at any time without
notice.
May '91
© KUBOTA Corporation 1991
SAFE TY INSTRUCTIONS
L2350 L2650·L2950·L3450 L3650 WSM, 1 1221
A SAFETY FIRST
This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and decals on the
machine itself to warn of the possibility of personal injury . Read th ese ins tructions ca refully .
It is essential that you read the inst ructions and safety r egulations before you attempt to repair or use
this unit.
-
A DANGER : Immediate hazards which Will result in severe personal injury or death .
A WARNING : Hazards or unsafe practices which COULD result in severe personal injury or death .
A CAUTION : Hazards or unsafe practices which COULD result in minor personal injury .
• IMPORTANT :Indicates that equipment or property damage could result if instructions are not
followed .
• NOTE : Gives helpful information.
SAFETY SERVICING AND REPAIRING
(1) Before working on the machine :
• Park the machine on a firm and level ground, and set the parking brake.
• lower the implement or mower to the ground.
• Stop the engine, and remove the key.
• Disconnect the battery's ground cable.
• Clean the work area and machine.
(2) Do not work on the machine while under the influence of alcohol, medication, or other substances or
while fatigued .
(3) Do not wear a necktie, scarf, necklace, loose or bulky clothing wh en you work near machine tools or
moving parts.
(4) Use tools appropriate to the work . Makeshift tools, parts, and procedures will not make good repairs.
(5) When servicing is performed together by two or more persons, take care to perform all work safely.
(6) Do not work under the machi r. e that is supported solely by a jack. Always support the machine by safety
stands.
L23SO·L2650·L2950 L3(1 50·L3650 W SM , 11 220
SAFETY INSTRUCTIONS
(7) If the engine must be running to do same work , make sure the area is well ventilated. Never run the
engine in a dosed area. The exhaust gas contains poisonous carbon monoxide.
(8) Do not touch the rotating or hot parts and high tension cords while the engine is running.
(9) Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or
sparks in your working area.
(10) To avoid sparks from an accidental short circuit, always disconnect the battery's ground cable first and
connect it last.
(11) 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.
(12) Battery gas can explode. Keep sparks and open flame away from the top of battery, especially when
charging the battery.
(13) Never remove the radiator cap while the engine is running, or immediately after stopping . Otherwise,
hot water will spout out from radiator. Wait for more than ten minutes to cool the radiator, before
removing the cap.
(14) 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.
(15) Do not start the engine by shorting across starter terminals.
(16) Unauthoriled modifications to the machine may impair the function and I or safety and affect machine
life .
(17) Do not alter or remove any part of machine safety system.
(18) Keep a first aid kit and fire extinguisher handy at all times.
2
SAFETY INSTRU CTIONS L2350 L2650 L2950ol3450 L3650 WSM, 11220
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.
0 Part No. 35260· 3491 ·3
A CAUTION
TO AVOID PERSONAL INJURY .
1. Read and understand the operator's manual before operation.
2. Before starting the engine, make sure that everyone is at a safe distance
from the tractor and that the PTO is OFF.
3. Do not allow passengers on the tractor at any time.
4. Before allowmg other people to use the tractor, have them read the oper-
Btor's m!Jnual.
5. Check the tightness of all nuts and bolts regularly.
6. Keer all shields in place and stay away from all movmg parts.
7. Lock the two brake pedals together before driving on the road.
8. Slow down for turns, or rough roads, or when applying individual brakes.
9. On public roads use SMV emblem and hazard lights, if required by local
traffic and safety regulat iOns.
10. Pull only from the drawbar.
1 1. Before dismounting, lower the 1mplement, set tho parkmg brake. stop tho
engme and remove the key.
8 Part No. 35260-2979·1
A WARNING
TO AVOID PERSONAL INJURY:
1. Attach pulled or towed loads
to the drawbar only.
2. Use the 3-point hitch only
with equ1pment designed for
3 pomt h1tch usage.
C) Part No. 35260·2978·2
B122F071
A WARNING
TO AVOID PERSONAL INJURY OR DEATH FROM ROLL·
OVER;
1. Kubota recommends the use of a Roii·Ovor Protec-
tive Structures (ROPS) and seat belt 1n almost all ap-
plications.
2. Remove the ROPS only when it substantially inter-
feres with operation or itself presents a safety risk.
(Exampl es include work in orchards and vineyards.)
ALWAYS REINSTALL IT BEFORE USING THE TRAC·
TOR IN OTHER APPLICATIONS.
3. Never use Just the seat belt, or just the ROPS. They
must be used together. For further details, consult
your Operator's Manual or your local dealer.
3
8 Part No. 35820-9863-3
A WARNING
TO AVOID POSSIBLE INJURY OR DEATH FROM A
MACHINE RUNAWAY:
1. Do not start engine by shorting across starter ter-
minals or bypassing the safety start switch. Machine
may start in gear and move if normal starting circuit·
ry bypassed.
2. Start engine only from operator's seat with trans-
mission and PTO OFF.
Never start engine while standing on the ground.
e Part No. 35200-2534-1
A WARNING
TO AVOID PERSONAL INJURY:
1. Keep PTO shield in place at all times.
2. Do not operate the PTO at speeds
faster than the speed recommended
by the Implement manufacturer.
L2350 L2650 L2950 L3450 L3650 WSM, 11220
G IW1th Glide Sh1h TransmiSSIOn!
Part No. 35370-3136-2
A WARNING
BEFORE DISMOUNTING TRACTOR:
ALWAYS SET PARKING BRAKE
Leavmg transmiSSion 1n gear w1th the eng1ne stopped
w1ll not prevent tractor with shuttle transmiSSIOn
from rollmg.
2 LOCK SHUTILE SHIFT LEVER IN NEUTRAL POSITION
Th1s prevents movement of shuttle sh1h lever out of
neutral position.
3. STOP THE ENGINE
e Part No. 35080-6528-2
A CAUTION
Pull the eng1ne stop knob back and
hold 11 until the engine stops 1n
case of emergency.
[L2350]
a1 22ron
SAFETY INSTRUCTIONS
0 !With mld·PTOI
Part No. 35070-6575-1
A WARN ING
TO AVOID PERSONAL INJURY:
1 Before operat1on, be sure to read PTO revolution
label to selftct the correct PTO lever (mid/rear) and
PTO revolut1on speed.
2. Do not operate rear· PTO driven
4
implements and m1d· PTO dnven Implements at the
same time.
[L2650,L2950,L3450,L3650]
SPECIFICATI0NS
L2350 L2650 L2950 L3450 L3650 WSM, 11220
SPECIFICATIONS
Model
LU50 (2WO)
I
l2350 (4WO)
Maxrmum PTO power
15 3 kW (20 5 HP)
EngrnP NET power
166kW(222HP)
Model 01102· AE
I
D1102- AE · 2
fype Vertrcal. Water-Cooled, 4-cycle dresel
Number of cylinders
3
Bore and stroke 76 x 82 mm (3 0 x 3 2 rn )
Tot<:~ I drsplacement 1 I 15 cml (68 0 cu in )
Rated revolutron 116 7 r/s (2800 rpm)
Maxrmum torque 77 5 N m (7 9 kg! m , 57 5 ft-lbs }/ 1600 rpm
Combustron chamber lndrrect lnjectron (Spherrcal combustron chamber)
Fuelrnjectron pump Bosh K type mrnr pump
Governor Centrrfugal ball mechanrcalgovernor
Eng1ne
InjectiOn nozzle Throttle type
InJeCtiOn t rm rng Before T 0 C. 0.40 rad (23")
InjeCtiOn order 1-2-3
lnjectron pressure 14 22 MPa ( 145 kgftcm1, 2062 ps1)
Compressron rat10 21
Lubr rcatrng system Forced lubrrcalron by pump
Cooltng system Pressurrzed radiator . Forced crrculat1on wrth water pump
Startrng sys tem Electrrc startrng wrth cell starter ( 12 V, I 0 kW)
Alternator 12V,300W
Battery 490-Cold crankrng Am psat - 18"C ( - 0 4" F)
Fuel Dreselluel No 2-D I No 1 dreselluel 1f temperature rs below - 10"C( 14"f )l
Lubrrcatrng orl MIL L-2104B or 2104C, CC or CD (AP1grade)
Werght (Dry) 149 kg (328 Sibs)
Fuel tank 291 (7 7 U S.gals. 6 ll lmp.gals.)
Engrne crank(ase 6. 31 (6 7 U.S.qts. 55 Imp qts)
Engrne coolant 61 (6 3 US qts .• 5 3 Imp qts)
Capacttres TransmiSSIOn case 281 (7 II US ga ls, 6 2 l mp . gals)
Steerrng gear box (Manual
steerrng only)
0 211(0 22 US qt ,0 1 81mpqt)
Front axle case -
I
61 (6.3 U.S qts ., 53 lmp. qts)
Overall length (wlthoul3P) 2640 mm (103 9 1 n)
Overall lengt h (wrt h 3P) 2960 mm (116 5 m )
Overall width (mini mum tread) 1270 mm (50 0 In)
Overall herght (Top of ROPS) 2110mm(83 .1 rn)
Overall herght (Top of mu ffler) 1935 mm (76 2 1n)
Drmensrons
Overall herght (Top of steerrng
wheel)
1380 mm (54 3 rn )
Wheel base 1555 mm (6 1 2 r n)
I
1565mm(6161n)
Mrn.ground clearance 345 mm (13 61n)
I
311mm(1221n)
Tread
I
front 1010 mm (39 8tn)
(Std trres) 1
Rea r 1 030 mm (40 Gtn)
5
l2350 L2650 L2950 L3450 L3650 WSM, I I 220
SPECIF ICATIONS
Model l2350 (2WD) L2350 (4WD)
f11E> ~1ze
Fronttrres II 00 - 15 6 14
(Sld t rre~)
Rear t11e 95 24
Clutch Dry type srngle stage wrth stngle plate
SteE'rrng
Recrrculatlng ball type manual steerrng
Recrrculatrng ball type manual steerrng
Travelrng or rntegral type power steerrng (rf
system
equrpped)
Transmr~sron Gear shrft. 8 forward and 2 reverse speeds
Brake
Traveling Wet drsk type
Park111g ConneCLed wrth the trdveling brake
Drlferentral Bevel gear
Hydraulrc control system Posrtron and draft control (rf equrpped)
Pump capacrty (at 2800 engrne) I 7 3 1/mrn (4 6 GPM) 27 2 1/mrn (7 2 GPM)
Hydraulic
Three pornt hrtch Category I
system
Maxrmum lrftrng force
(211 "' · behind lower lrnkend)
650 kg (14351bs)
Pl 0 shaft SAE 1- 3/8 6-spllnes
RearPTO
Revolutron 1 speed 9 r/s (540 rpm) I engrne 110 5 r/s (21130 rpm)
Mrn turnrng radrus (wrth brake) 2 4 m (79ft) 25m (82ft)
Tractron system Frxed drawbar or swrng drawbar (rl equrpped)
Werght (wrth ROPS) 890 kg (19621bs.) 1000 kg (22051bs)
1st I .3 km/h (0 8 mph) 1 3 km/h (0.8 mph)
2nd 1 6km/h(1 .0mph) 1 7k m/h( 1 Omph)
3rd 2 4 km/h (1 .5 mph) 2 4 km/h (I 5 mph)
Forward
4th 4 1 km/h (2 5 mph) 4 2 km/h (2 .6 mph)
Traveling
5th 5 4 km/h (3 4 mph) 53 km/h (3 3 mph)
speed
6th 7 0 km/h (4 4 mph) 6 8 km/h (II 2 mph)
7th 10 I km/h (6 3 mph) 9 8 km/h (6 I mph)
8th I 7 4 km/h (10 8 mph) 17 0 km/h (10 6 mph)
1st 21 km/h(Umph) 2.2 km/h (1 .4 mph)
Reverse
8.9 km/h (56 mph) 2nd 9.2 km/h (5 .7 mph)
6
SPECIFICATIONS
L2350 L2650 L2950 L3450 L3650 WSM, 1 1220
SPECIFICATIONS (Continued}
Model
l2650 L2950
2WD
I
4WD 2WD
I
4WD
M cuCimum PTO power 17 5 kW (23 5 liP) 19 4 kW (26 0 liP)
Eng me NET power 19 .5 kW (26 I HP) 21 3kW (28 6 HP)
Model 01402 DI· AE 011162 OI · AE
Type Orrect lnJectron, Ver trcal. Water -Cooled, 4-cycle dresel
Number of cylinders 3
Bore and stroke 85 x 82 mm (3 3 x 3.2 In) 87 x 82 mm (3 4 K3 2m)
Total drsplacement 1 395 cml (85 1 cu m) 1462 cml (89 2 cu rn)
Rated revolutron 43.3 r/s (2600 rpm)
Ma1<rmum torque
89 2 N m (9 I kgf m. 65 8 It lbs)
11600 rpm
95 1 N m (9 7 kgf m, 70 2 ft-lbs)
11600 rpm
Combustron chamber Drrect InJection
Fuellnjectron pump Bosh K type mrru pump
Governor Centrif u gal ball mechanrcalgovernor
Eng me
lnJectron IIOZZie 4 hole type (~tanadyne pencil nozzl e)
lnJeCtron trm111g Before T 0 C. 0 31 rad ( 18")
ln)ectron order 1-2-3
lnJeCtron pressure 22 75 MPa (232 kgf tcm7, 3300 psi)
Compressron ratro 19
Lubrrcatrng system rorced lubrrcatron by pump
Cooling system Pressumed radrator, Forced crrcul at r on wrth water pump
Startrng system Electrrc slartrng wrth cell sta rt er (12 V, 1 2 kW)
Alternator 12V,II80W
Battery 490 Cold crankrng Amps al - 18"C ( 0 II"F)
Fuel Oresel fuel No. 2-D !No 1 dresel luel rl temperature rs below - IO"C( 14" F)J
Lubrrcatrng or I MIL·L-2104B or 2104C, CC or CD (API grade)
Weight (Dry) 177 kg (390 2 lbs)
Fuel t ank 291 (7 ,7 U.S.gals., 6 II Imp gals)
Engrne crankcase 5 7 I (6.0 U.S.qts .• 50 Imp qts .)
Engrne coolant II 61 (4 9 US qts. 4 0 Imp qls)
Transmrssron case 28 5 I (7 7 U S gals., 6 3 Imp gals.)
Capacrtres
Steerr ng gear case
0 1 I (0 11 U S qt .
0 09 lmp.qt.)
-
0 1 I (0 11 lJ S qt ,
0 091mp qt)
-
Steerrng gear box (Manual 0 21 (0 2 1 lJ s qt •
steerrng onl y) 0 181mp qt)
-
0 2 I (0 21 lJ S qt ,
0 18 1mpqt)
-
Front a~le case (4WD only) -
6 5 I (6 9 lJ .S 0ts .
5 71mp qts
-
6 5 I (6 9 U S.0ts •
57 Imp qt~
Overall length (wrthoul 3P) 2770 rnm ( 1 09 1 rn) 2795 mm (110 0 rn)
Overall length (wrth 3P) 7990 rnm ( 11 7 7 rn)
Overall wrdth (mrnrmum treCJd) 1305 mm (5 1 4rn) 1340 mrn (52 7 rn .)
Ormensrons
Overall herghl ( 1 op or ROPS) 2110mm(83. 11n) 2125 mm (83 7rn)
Overa ll herght (Top of muffler) 2030 mm (79 .9 rn)
Overa ll her ght (I op of steerrng
wheel
1475 mm (58 1 in)
Wheel base
16110 mm (6116rn)
7
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The Kubota L2350 Tractor Factory Service Repair Manual is a comprehensive guide covering all aspects of maintaining, repairing, and troubleshooting the Kubota L2350 Tractor. It is an official full factory service manual, providing detailed information for professional mechanics and DIY enthusiasts alike.
Key topics covered in this manual include:
- Kubota L2350 Tractor Engine
- Kubota L2350 Tractor Lubrication System
- Kubota L2350 Tractor Cooling System
- Kubota L2350 Tractor Fuel System
- Kubota L2350 Tractor Disassembly and Servicing
- Kubota L2350 Tractor General
- Kubota L2350 Tractor Separation
- Kubota L2350 Tractor Clutch
- Kubota L2350 Tractor Transmission
- Kubota L2350 Tractor Drive Chain & Sprockets
- Kubota L2350 Tractor Rear Axle
- Kubota L2350 Tractor Brakes
- Kubota L2350 Tractor Front Axle
- Kubota L2350 Tractor Steering
- Kubota L2350 Tractor Shocks
- Kubota L2350 Tractor Body Work
- Kubota L2350 Tractor Intake & Exhaust
- Kubota L2350 Tractor Hydraulic System
- Kubota L2350 Tractor Electrical System
- Kubota L2350 Tractor Routine Maintenance
- Kubota L2350 Tractor Advanced Troubleshooting
- Kubota L2350 Tractor Wiring Diagram
The manual contains detailed illustrations, diagrams, and specifications to guide the mechanic through any repair procedure. It also includes an advanced troubleshooting guide to diagnose and correct any problem. The manual is available in .PDF format and is suitable for all PC-based Windows operating systems and Mac.
With this Kubota L2350 Tractor Factory Service Repair Manual, you can save on shop labor costs and perform all servicing yourself. The manual provides detailed substeps, notes, cautions, warnings, and numbered instructions to guide you through every repair procedure. It also includes troubleshooting and electrical service procedures combined with detailed wiring diagrams for ease of use.
This highly detailed manual is fully printable, allowing you to print specific pages or the entire manual as needed. It is a valuable resource for any Kubota L2350 Tractor owner, providing step-by-step instructions and photos for service, maintenance, repairs, and tuning.
