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Kubota B7400 Maintenance
The
Kubota B7400 is a 4-wheel drive compact utility tractor. This model was
manufactured between 2000 and 2003. The Kubota B7400 tractor is powered by 43.9
cubic inches (0.7 L) Kubota D722-E 3-cylinder indirect injection naturally
aspirated liquid cooled diesel engine with a maximum power of 16 Hp (11.9 kW)
and 44.7 Nm (33 lb-ft) of peak torque at 2600 rpm.
The Kubota B7400 is fitted with 2 transmission options: gear shift
transmission with 6 forward and 2 reverse gears, or 2-range hydrostatic
transmission with infinite forward and reverse gears.
Max. travel speed (forward and reverse): 11.7 mph (18.8 km/h) / 7.3 mph
(11.7 km/h). The open center hydraulic system used a single gear pump
with a flow rate of 3.9 gpm (14.8 lpm). The tractor was equipped with a
manual steering system, multi-plate wet disc brakes, 6.00x12 front
tires, and 8.3x16 rear tires. The wheel base is 59 in (1490 mm).
Compatible attachments for the Kubota B7400 tractor: 54", 60" mid-mount
3-blade side discharge rotary mower decks with cutting height of 1.5-4.0
in (30-100 mm), and Kubota LA272 loader with lift capacity to max height
of 685 lbs (310 kg).
| Engine oil capacity, gal (L) |
0.65 (2.4) |
| Engine coolant capacity, gal (L) |
0.75 (2.9) |
| Hydraulic/transmission fluid capacity (Gear), gal (L) |
3.0 (11.2) |
| Hydraulic/transmission fluid capacity (HST), gal (L) |
3.2 (12.0) |
| Front axle oil capacity, qts (L) |
3.4 (3.2) |
| Recommended Oil and Fluid |
| Engine oil type |
SAE 20, SAE 30, SAE 10W, 10W-30. API Service category CD, CF |
| Engine coolant type |
Kubota Antifreeze/Coolant |
| Hydraulic/transmission fluid type |
Kubota UDT or Super UDT |
| Front axle oil type |
Gear lube SAE 80, SAE 80W-90 |
| Check hydraulic/transmission fluid level |
Every 50 hours |
| Check front axle oil level |
Every 50 hours |
| Lubricate axle hub bearings |
Every 50 hours |
| Change engine oil |
Every 100 hours |
| Clean primary engine air filter element |
Every 100 hours |
| Clean secondary engine air filter element |
Every 100 hours |
| Service engine fuel filter element |
Every 100 hours |
| Check battery and clean terminals |
Every 100 hours |
| Inspect and adjust alternator/fan belt |
Every 100 hours |
| Replace engine oil filter |
Every 200 hours |
| Replace hydrostatic transmission filter (HST) |
Every 200 hours |
| Replace hydraulic/transmission oil filter |
Every 300 hours |
| Change hydraulic/transmission fluid |
Every 300 hours |
| Change front axle oil |
Every 300 hours |
| Check and adjust engine idling |
Every 300 hours |
| Adjust parking and service brakes |
Every 300 hours |
| Change engine fuel filter |
Every 400 hours |
| Clean radiator fins |
Every 500 hours |
| Replace primary engine air filter element |
Every 600 hours |
| Replace secondary engine air filter element |
Every 600 hours |
| Check and adjust valve clearance |
Every 800 hours |
| Flush cooling system and add new coolant |
Every 1000 hours |
| Engine oil filter part number |
HH150-32430 |
| Engine fuel filter part number |
6A320-59930 (Element) |
| Engine fuel filter gasket part number |
6A320-59940 |
| Primary engine air filter part number |
6C060-99414 |
| Secondary engine air filter part number |
32721-58242 (Element) |
| Hydraulic oil filter part number |
HH670-37712 |
| Hydraulic suction filter part number |
66021-36390 |
| Hydraulic filter gasket part number |
04811-10300 |
| Hydrostatic transmission filter part number |
HH660-36060 |
| Drive belt part number |
1G027-97012 |
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| Farm Tractors Technical Specifications |
