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Kubota STV40 Technical Data

Kubota STV40 Engine

Engine Model .................. Kubota D1803-M
Engine Type .................. Vertical, water-cooled, 4-cycle diesel
Number of cylinders .................. 3
Displacement, cu in (L) .................. 111.4 (1.80)
Engine Bore, in (mm) .................. 3.40 (86.0)
Engine Stroke, in (mm) .................. 4.00 (102.0)
Aspiration .................. Natural
Rated Engine Power, hp (kW) .................. 37.8 (28.2)
Rated Engine Speed, rpm .................. 2700
Low Idle Speed, rpm .................. 750-850
Compression .................. 23.8:1
Firing Order .................. 1-2-3
Fuel System .................. Injection pump
Injection Pump Type .................. Bosch
Lubricating System .................. Forced lubrication by trochoid pump
Air cleaner .................. Dry element
Fuel Tank Capacity, gal (L) .................. 7.8 (29.5)
Oil Capacity, qts (L) .................. 5.9 (5.6)
Coolant Capacity, qts (L) .................. 7.4 (7.0)
Electrical System Rating, Volts .................. 12
Charging System .................. Alternator

Kubota STV40 Power Take-Off

PTO Operational Type .................. Independent
PTO Horsepower, hp (kW) .................. 31.0 (22.8)
Rear PTO Speed, rpm .................. 540/800
Rear PTO / Engine Speed, rpm .................. 540/2670
Rear PTO / Engine Speed, rpm .................. 800/2717
Mid PTO Speed, rpm .................. 2500
Mid PTO / Engine Speed, rpm .................. 2500/2734

Transmission Configuration

Transmission Type .................. Hydrostatic
Number of Forward Gears .................. 3 Ranges (Hi-Mid-Lo)
Number of Reverse Gears .................. 3 Ranges (Hi-Mid-Lo)
Maximum Forward Speed (Low Range), mph (kph) .................. 4.1 (6.6)
Maximum Forward Speed (Middle Range), mph (kph) .................. 7.9 (12.7)
Maximum Forward Speed (High Range), mph (kph) .................. 16.4 (26.5)
Maximum Reverse Speed (Low Range), mph (kph) .................. 3.0 (4.8)
Maximum Reverse Speed (Middle Range), mph (kph) .................. 5.7 (9.2)
Maximum Reverse Speed (High Range), mph (kph) .................. 13.6 (21.7)

Kubota STV40 Wheels and Tires

Drive Wheels .................. 4WD 4x4
Steering Configuration .................. Front steer
Steering System .................. Hydrostatic power
Brakes Type .................. Wet disc
Front Tire Size (Std) .................. 6.00-12
Rear Tire Size (Std) .................. 9.50-22
Front Tire Size (Turf) .................. 24x8.50-14
Rear Tire Size (Turf) .................. 12.4-16
Front Tread, in (mm) .................. 40.6 (1030)
Rear Tread, in (mm) .................. 37.4-42.1 (940-1060)

Kubota STV40 Hydraulic System

Hydraulic System Type .................. Open center
Implement Pump Flow, gpm (Lpm) .................. 6.1 (23.1)
Hydraulic Pressure, Bar (psi) .................. 173 (2500)
Hydraulic Outlet .................. Mid
Number of Standard Remote Valves .................. 3
3-Point Hitch Category .................. 1
Draft Sensing or Lift Control .................. Position control
Standard Lift Capacity at lift pin, lb (kg) .................. 2535 (1150)

Dimensions and Weight

Wheelbase, in (mm) .................. 63.4 (1610)
Overall Length, in (mm) .................. 105.5 (2670)
Height (Cab), in (mm) .................. 85 (2150)
Height (ROPS), in (mm) .................. 92.5 (2340)
Width, in (mm) .................. 48 (1210)
Ground Clearance, in (mm) .................. 9.3 (230)
Weight (ROPS), lb (kg) .................. 2150 (975)
Weight (Cab), lb (kg) .................. 2500 (1135)

KUBOTA TRACTORS TROUBLESHOOTING
L235	L2501	L2550	L275	L3110
L3301	L35	L3710	L3901	L4310
L5030	M4700	M5700	M6040	M6800
M8200	M8540	M9000	MX5100	MX5200