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Kubota L3750 Maintenance
The
Kubota L3750 L-series compact utility tractor was manufactured from 1984 to
1990. The tractor was designed in 2 versions: L3750F (2WD) and L3750DT (4WD).
The Kubota L3750 powerline system components: Kubota F2302-DI 5-cylinder
direct injection water-cooled naturally aspirated diesel engine and
partially synchronized transmission with 8 forward and 8 reverse gears.
A 141.9 cubic inches (2.3L) engine has a cylinder bore of 3.35" (85 mm),
piston stroke of 3.23" (82 mm), and rated power of 45 hp (33.6 kW).
The maximum travel speed (forward/reverse): 14.2 mph (22.8 km/h). The
open center hydraulic system used a gear pump with rated capacity of 8.7
gal/min(32.9 l/min). The hydraulic system pressure is 172.5 bar (2500
psi). The 2-wheel drive models are equipped with 6.50x16 front tyres and
13.6x28 rear tyres. The 9.50x16 front tyres and 13.6x28 rear tyres fit
4-wheel drive tractors. The wheelbase is 76.4" (1940 mm).
Compatible attachments for the Kubota L3750 tractor: Kubota BF900 loader
with lift capacity to full height of 1985 lbs (900 kg), and Kubota L4540
backhoe with maximum digging depth of 123" (3120 mm) and bucket digging
force of 3980 lbs (1805 kg).
| Engine oil capacity, gal (L) |
2.4 (9.0) |
| Engine coolant capacity, gal (L) |
2.0 (7.5) |
| Hydraulic/transmission fluid capacity, gal (L) |
11.3 (43.0) |
| Front axle oil capacity, gal (L) |
2.25 (8.5) |
| Recommended Oil and Fluid |
| Engine oil type |
SAE 20, SAE 30, SAE 10W, 10W-30. API Service category CC, CD |
| Engine coolant type |
Kubota Antifreeze/Coolant |
| Hydraulic/transmission fluid type |
Kubota UDT Fluid |
| Front axle oil type |
Kubota UDT, SAE 80, SAE 80W-90 Gear Oil |
| Check hydraulic/transmission fluid level |
Every 50 hours |
| Check front axle oil level |
Every 50 hours |
| Lubricate axle hub bearings |
Every 100 hours |
| Clean engine air filter element |
Every 100 hours |
| Clean engine fuel filter element |
Every 100 hours |
| Change engine oil |
Every 200 hours |
| Replace hydraulic oil filter |
Every 200 hours |
| Check battery and clean terminals |
Every 200 hours |
| Inspect and adjust fan belt |
Every 200 hours |
| Adjust parking and service brakes |
Every 200 hours |
| Check power steering oil line |
Every 200 hours |
| Check and adjust engine idling |
Every 200 hours |
| Change hydraulic/transmission fluid |
Every 300 hours |
| Change front axle oil |
Every 300 hours |
| Replace engine oil filter |
Every 400 hours |
| Replace engine fuel filter |
Every 400 hours |
| Check and adjust valve clearance |
Every 800 hours |
| Check fuel injection nozzles |
Every 800 hours |
| Replace engine air filter element |
Every 1000 hours |
| Flush cooling system and add new coolant |
Every 1000 hours |
| Engine oil filter part number |
HH164-32430, 15402-32430 |
| Engine fuel filter part number |
15521-43160 (Element) |
| Engine fuel filter gasket part number |
04811-50650 and 04816-00160 |
| Engine air filter part number |
70000-11080, 17381-11180 |
| Hydraulic oil filter part number |
36330-82630 |
| Drive belt part number |
15196-97010 |
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| Farm Tractors Technical Specifications |
