Kubota RTV-X1110 / RTV-X1140 service schedule

Kubota RTV · 2015–present (figures from the 2015 RTV-X1140 operator's manual)

Every maker's service job for the Kubota RTV-X1110 / RTV-X1140, counted in hours, with the oils, filters and parts each one needs. Add your UTV to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.

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Versions: RTV-X1110 (Europe); RTV-X1140 (convertible 2 or 4 seat)

Service intervals

Job	When
Greasing	every 50 hours
Air cleaner clean and element change	every 100 hours
Alternator belt tension	every 100 hours
Muffler spark arrester clean	every 100 hours
Brake and parking brake checks	every 200 hours or every 2 years
Engine oil and filter change	every 200 hours
Hydraulic tank oil and transmission filters change	every 200 hours
Fuel filter element change	every 400 hours
Transmission, front axle and knuckle oil change	every 400 hours
Valve clearance adjustment	every 800 hours
Coolant change and system flush	every 2,000 hours or every 2 years

Service jobs and parts

Greasing

Chassis · every 50 hours

Kubota says grease the points every 50 hours (the drive shaft bearing every 200 hours). The list includes 6 front A-arm nipples, 8 rear A-arm nipples, the cargo lift cylinder and bed pivots, VHT link and parking brake lever.

Part	Qty	Notes	Part number
Multipurpose EP2 grease	1	NLGI 2. Aztec Oils match: VOLCATEC LITHIUM EP 2	check your handbook

Step-by-step

Wipe each nipple clean.
Grease the 6 front and 8 rear A-arm nipples and the cargo lift cylinder until grease overflows.
Give the bed pivots, links and parking brake lever a moderate amount.
Every 200 hours, grease the drive shaft bearing until it overflows.

Tools: Grease gun, Rag

Air cleaner clean and element change

Engine · every 100 hours

Kubota says clean the air cleaner element every 100 hours (more often in dust) and replace it every 1,000 hours or yearly. Blow out from the inside at under 205 kPa (30 psi); replace it if carbon or oil is on it.

Part	Qty	Notes	Part number
Outer air filter element	1	Kubota number quoted by FridayParts; replace every 1,000 hours or yearly	1G319-11210
Inner (safety) element	1	Kubota number K7591-82360 quoted by an aftermarket listing; check your handbook	check your handbook

Step-by-step

Stop the engine and remove the air cleaner cover.
Take out the outer element and blow it out from the inside, turning it, at under 30 psi.
Replace it if it is oily, sooty or damaged, and at least yearly.
Refit so it seals and empty the dust valve.

Tools: Compressed air (under 205 kPa), Rag

Alternator belt tension

Engine · every 100 hours

Kubota says adjust the alternator belt tension every 100 hours.

Step-by-step

With the engine stopped, press the belt midway and check the deflection your handbook gives.
Adjust at the alternator if needed and replace the belt if cracked.

Tools: Spanners, Rule

Muffler spark arrester clean

Exhaust · every 100 hours

Kubota says clean the muffler spark arrester every 100 hours.

Step-by-step

Let the exhaust cool.
Clean the swirl-type spark arrester as your handbook shows and refit.

Tools: Spanner, Brush

Brake and parking brake checks

Brakes · every 200 hours or every 2 years

Kubota says check the brake pedal, front brake case and brake light switch and adjust the parking brake every 200 hours, and change the brake fluid every 2 years (dealer). Seals, master cylinder parts and hoses are renewed every 4 years.

Part	Qty	Notes	Part number
Kubota DOT 3 brake fluid	1	DOT 3. 0.4 L. Aztec Oils match: HYDRATEC DOT 4 BF	check your handbook

Step-by-step

Check pedal travel and the parking brake hold as your handbook describes; adjust the parking brake.
Check the brake light works.
Have your dealer check the pedal and do the 2-year fluid change.

Tools: Spanners

Engine oil and filter change

Engine · every 200 hours

Kubota says change the engine oil and filter at the first 50 hours and then every 200 hours. Halve it if you use fuel over 0.5 % sulphur.

Part	Qty	Notes	Part number
Engine oil 10W-30 or 15W-40, API CF or higher	1	4.1 L with filter. Aztec Oils match: EMPROTEC SHPD 10W-30	check your handbook
Engine oil filter	1	Kubota number quoted in the FridayParts kit for RTV-X1140 (77700-05389)	HH150-32094

Step-by-step

Park level, stop the engine and raise the cargo bed safely.
Drain the oil from the sump while warm.
Remove the old filter, oil the new filter's seal and fit it by hand.
Refit the drain plug and fill with about 4.1 L. Run the engine, stop it and check the dipstick after a few minutes.

Tools: Drain tray (5 L), Filter wrench, Funnel

Hydraulic tank oil and transmission filters change

Hydraulics · every 200 hours

Kubota says change the hydraulic tank oil and replace the VHT (yellow) and suction (black) transmission oil filters at the first 50 hours, then every 200 hours.

Part	Qty	Notes	Part number
Kubota UDT / Super UDT fluid	1	UTTO tractor transmission-hydraulic fluid. Hydraulic tank 18.0 L. Aztec Oils match: AGRITEC UTTO	check your handbook
VHT (HST) oil filter, yellow	1	Superseded by HHK70-14073 (Kubota number quoted by FridayParts)	HHK70-14070
Suction oil filter, black	1	Kubota number quoted by FridayParts	HHK32-16770

Step-by-step

Park level, stop the engine and raise the bed safely.
Drain the hydraulic tank as your handbook shows.
Change the yellow VHT filter and the black suction filter, oiling the new seals.
Refill with UDT fluid, run the engine and check the level. Do not mix fluid brands.

Tools: Drain tray (20 L), Filter wrench, Funnel

Fuel filter element change

Fuel · every 400 hours

Kubota says check the fuel filter every 100 hours and replace the element every 400 hours (dealer job in the US chart). Bleed the fuel system afterwards.

Part	Qty	Notes	Part number
Fuel filter element	1	Kubota number quoted by FridayParts	6A320-59930

Step-by-step

Close off the fuel and replace the element, keeping dirt out.
Bleed the system: fill the tank, work the fuel pump lever until it stiffens, then run the engine for about 30 seconds and stop it.
Check for leaks.

Tools: Container, Rags

Transmission, front axle and knuckle oil change

Transmission · every 400 hours

Kubota says change the transmission fluid, front axle case oil and front knuckle case oil every 400 hours.

Part	Qty	Notes	Part number
Kubota UDT / Super UDT fluid	1	UTTO tractor transmission-hydraulic fluid. Transmission 7.0 L; front axle 0.6 L; knuckles about 0.25 L each. Aztec Oils match: AGRITEC UTTO	check your handbook

Step-by-step

Park level and drain each case through its drain plug.
Refit the plugs and refill each case to its level mark or plug with UDT fluid.
Do not mix fluid brands.

Tools: Drain tray (10 L), Spanners, Funnel or pump

Valve clearance adjustment

Engine · every 800 hours

Kubota says adjust the engine valve clearance every 800 hours, as a dealer job.

Step-by-step

Have a Kubota dealer adjust the valve clearance.

Tools: Dealer job

Coolant change and system flush

Cooling · every 2,000 hours or every 2 years

Kubota says flush the cooling system and change the coolant every 2,000 hours or 2 years.

Part	Qty	Notes	Part number
Antifreeze and clean water	1	7.6 L with reserve tank	check your handbook

Step-by-step

Only work on a cold engine.
Drain the radiator and block, flush with clean water and refill with the antifreeze mix.
Run, cool and top up the reserve tank.

Tools: Drain tray, Funnel

Oils, fluids and capacities

System	Oil or spec	Capacity
Engine	Kubota D1105 1.123 L 3-cylinder 4-stroke indirect-injection diesel, 18.5 kW (24.8 hp) gross at 3,000 rpm
Engine oil	API CF or higher (CF, CF-4, CG-4, CH-4 or CI-4; not CJ-4). Above 25 °C SAE 30, 10W-30 or 15W-40; 0–25 °C SAE 20, 10W-30 or 15W-40; below 0 °C SAE 10W or 10W-30	4.1 L with filter; 3.8 L without
Coolant	7.6 L with reserve tank, clean water with antifreeze
Valve clearances	Adjust every 800 hours (dealer job); check your handbook for the clearance
Engine oil	API CF or higher, 10W-30 or 15W-40	4.1 L with filter
Transmission case	Kubota UDT or Super UDT fluid	7.0 L
Hydraulic tank (VHT and hydraulics)	Kubota UDT or Super UDT fluid	18.0 L
Front axle case	Kubota UDT or Super UDT fluid	0.6 L
Front knuckle cases	Kubota UDT or Super UDT fluid	About 0.25 L each
Brake fluid	Kubota DOT 3	0.4 L
Coolant	Water with antifreeze	7.6 L
Fuel tank	Diesel (EN 590)	30 L

Specifications


Transmission	VHT (continuously variable hydrostatic), Hi-Low range; 4WD with diff lock
Brakes	Wet disc front and rear
Weight	1,075 kg
Payload	739 kg; cargo bed 500 kg (2-seat) or 300 kg (4-seat mode)
Towing	Rear 590 kg
Tyre pressures (25 × 10-12 HDWS)	Front 140 kPa (20 psi); rear 140 kPa, or 170 kPa with 249–500 kg in the bed
Wheel nut torque	Aluminium wheel 90–110 N·m; steel wheel 108–130 N·m

Known problems

Hoses at 4 years

Kubota says replace the fuel, hydraulic, radiator, intake, breather and brake hoses every 4 years, and check them yearly.

Do not mix UDT brands

Kubota says do not mix transmission fluid brands. The transmission and hydraulic tank both take UDT fluid.

Injection checks

Kubota lists the injection nozzle pressure every 1,500 hours and the injection pump every 3,000 hours as dealer checks.

Repair guides

Diesel will not start or stops: fuel, air in the system and battery (Easy, 20–45 minutes): Engine cranks but will not start after running dry or a filter change, starts and dies, cranks slowly in the cold, or smokes black or blue-white.
Alternator belt slipping or squealing: tension and replacement (Easy, 30–45 minutes): Belt squeal on start-up, charge warning light, battery going flat, or a cracked or glazed fan/alternator belt.
Front tyres scrubbing: toe-in adjustment (Moderate, 45 minutes): Front tyres wearing on the edges, steering wandering, or the wheel not straight after a knock to a tie rod.
Brakes weak or parking brake not holding: pedal checks and cable adjustment (Moderate, 45 minutes): Pedal travels too far, brakes feel soft or noisy, the RTV creeps on a slope with the parking brake on, or brake fluid weeping at the front brake case.
Engine or VHT overheating (Easy, 30 minutes): Temperature gauge high or coolant boiling over, VHT (hydrostatic) oil warning, or the machine losing drive when hot.

The full step-by-step guides are in Farmyard Workshop once you add your UTV.

Sources

Open Farmyard Workshop