Zetor 6211 / 6245 service schedule

Zetor UR I (5211–7745) · Mid-1980s to early 1990s (handbook edition 2/1988)

Every maker's service job for the Zetor 6211 / 6245, counted in hours, with the oils, filters and parts each one needs. Add your tractor 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: 6211 (2WD, swinging front beam axle); 6245 (4WD front drive axle)

Service intervals

Job	When
Oil-bath air cleaner: change oil	every 100 hours
Engine oil change and centrifugal filter clean	every 200 hours
Coarse fuel filter: wash bowl and strainer	every 200 hours
Hydraulic pump suction strainer clean	every 200 hours
Fine fuel filter elements change and bleed	every 600 hours
Hydraulic oil filter elements change	every 600 hours
Valve clearance and toe-in check	every 600 hours
Injector check	every 600 hours
Brake check and adjust	every 600 hours
Gearbox, final drive and hydraulic oil change	every 1,200 hours
Steering box oil, power steering oil and filter change	every 1,200 hours
Front drive axle oil change (6245)	every 2,400 hours
Coolant change	every 2 years

Service jobs and parts

Oil-bath air cleaner: change oil

Engine · every 100 hours

The handbook's 100-hour service (TO 1) says service the air cleaner and change its oil, never just top it up. The pre-cleaner is checked daily.

Part	Qty	Notes	Part number
Engine oil for the air cleaner bowl	1	10W-40. Same oil as the engine, to the mark on the bowl. Aztec Oils match: EMPROTEC XHPD 10W-40	check your handbook

Step-by-step

Stop the engine and take the key out.
Release the clips and take off the dust bowl.
Tip out the old oil and dirt and clean the bowl.
Wash the lower element in diesel or paraffin, not petrol or solvents.
Refit, fill the bowl to the mark with fresh oil and clip it back.

Tools: Drain tray, Diesel or paraffin for washing, Rags

Engine oil change and centrifugal filter clean

Engine · every 200 hours

The handbook puts the engine oil change in the 200-hour service (TO 2) and says clean the centrifugal oil filter on the 6211–7245 at every oil change. (The 3-cylinder 5211/5245 has washable filter elements instead.)

Part	Qty	Notes	Part number
Engine oil	1	10W-40. Grade and quantity: check your handbook. Aztec Oils match: EMPROTEC XHPD 10W-40	check your handbook
Centrifugal filter cover seal	1	Renew if damaged; check your handbook	check your handbook

Step-by-step

Run the engine to working temperature, park level, lower implements, stop the engine and chock the wheels.
Remove the sump drain plug while the oil is warm, clean any metal off the plug and refit it.
Undo the centrifugal filter cover bolt, lift off the cover and take out the rotor. Undo the M 32 nut and separate the halves.
Wash both halves in petrol or diesel, dry them and reassemble with the alignment marks facing each other, or the rotor runs out of balance.
Refit the rotor and cover and pour in the specified oil through the filler.
Run the engine for 2–3 minutes at 750–800 rpm, stop it, let the oil settle and top up to the upper dipstick mark.

Tools: Drain tray (15 L), Spanners, Socket for the M 32 rotor nut, Petrol or diesel for washing, Funnel, Rags, Gloves

Coarse fuel filter: wash bowl and strainer

Fuel · every 200 hours

The handbook's 200-hour service (TO 2) says wash the sediment bowl and strainer of the coarse fuel filter.

Step-by-step

Stop the engine and keep naked flames away.
Remove the sediment bowl and strainer, wash them in clean diesel and refit.
Bleed the fuel system with the hand pump if needed.

Tools: Container, Clean diesel, Spanner, Rags

Hydraulic pump suction strainer clean

Hydraulics · every 200 hours

The handbook's schedule lists cleaning the hydraulic pump suction strainer mesh and magnet under the 400-hour service (TO 3), but its hydraulics pages say every 200 hours. The shorter, safer interval is used here, as in the 7745 entry.

Part	Qty	Notes	Part number
Suction strainer seal	1	Check your handbook	check your handbook

Step-by-step

Lower the linkage and stop the engine.
Remove the suction strainer, catching any oil.
Wash the mesh and wipe the magnetic element clean.
Refit with a good seal and top up the transmission oil.

Tools: Spanners, Drain tray, Clean diesel, Rags

Fine fuel filter elements change and bleed

Fuel · every 600 hours

The handbook's 600-hour service says change the fine fuel filter elements. It also says bleed the fuel system at the second bleed point no later than every 600 hours and whenever the system has been opened.

Part	Qty	Notes	Part number
Fine fuel filter elements	1	Check your handbook	check your handbook

Step-by-step

Stop the engine and keep naked flames away.
Change the fine filter elements with new seals.
Pump the hand primer, loosen bleed screw 1 until fuel runs clear of froth, then tighten. Repeat at bleed screw 2.
Start the engine and check for leaks.

Tools: Spanners, Container, Rags

Hydraulic oil filter elements change

Hydraulics · every 600 hours

The handbook's 600-hour service says change the hydraulic oil filter elements.

Part	Qty	Notes	Part number
Hydraulic filter element	1	Zetor number 70114566 is quoted for the 5211–7745 by parts sellers; check your handbook	70114566

Step-by-step

Lower the linkage and stop the engine.
Open the filter housing and remove the element.
Fit the new element with sound seals and close the housing.
Run the engine, work the lift and check the oil level.

Tools: Spanners, Drain tray, Rags

Valve clearance and toe-in check

Engine · every 600 hours

The 600-hour service says check the valve clearance on a cold engine (0.25 ± 0.05 mm inlet and exhaust) and check front wheel toe-in.

Part	Qty	Notes	Part number
Rocker cover gasket	1	Check your handbook	check your handbook

Step-by-step

With the engine cold, remove the rocker cover.
Check and set each valve to 0.25 ± 0.05 mm with the piston at top dead centre on compression.
Refit the cover.
Check front wheel toe-in. The handbook gives 4–6 mm toe-in in its schedule (12–15 mm toe-out for a driven front axle) and 2–6 mm on its 2WD adjustment page; check your handbook.

Tools: Feeler gauges, Spanners, Tape measure

Injector check

Fuel · every 600 hours

The handbook says check the injector opening pressure and spray after the first 100 hours and then every 600 hours. On the Z 6201 the pressure is 17.5 MPa minus up to 0.8 MPa, set at the top of the range.

Step-by-step

Have the injectors tested on the engine or removed and tested.
Set the opening pressure at the top of the range, 17.5 MPa.
Clean the injector seat in the head and grease the injector body with LITOL 24 before refitting.

Tools: Injector tester (Motorpal NC 50 or NC 251) or a diesel specialist

Brake check and adjust

Brakes · every 600 hours

The 600-hour service says check and adjust the brake discs and check the handbrake. The brake fluid is changed every two years and the brake discs are stripped and checked at 2,400 hours.

Part	Qty	Notes	Part number
Brake fluid	1	Check your handbook. Aztec Oils match: HYDRATEC DOT 4 BF	check your handbook

Step-by-step

Check the pedal travel and adjust the brakes as your handbook describes.
Check and adjust the handbrake.
Check the brake fluid level is between half and three-quarters of the reservoir.
Every two years, have the brake fluid changed.

Tools: Spanners, Rule

Gearbox, final drive and hydraulic oil change

Transmission · every 1,200 hours

The handbook's 1,200-hour service (TO 4) says change the gearbox and final drive oil, which also feeds the hydraulics. It also changes the steering box oil and the power steering oil and filter element, covered separately.

Part	Qty	Notes	Part number
Transmission oil	1	10W-30. Check your handbook; fill to the dipstick mark (standard 25 L). Aztec Oils match: AGRITEC UTTO	check your handbook

Step-by-step

Work the tractor so the oil is warm, then park level and lower the linkage.
Drain the gearbox and final drive.
Refit the plugs and fill to the dipstick mark with the dipstick screwed fully home.
Run the engine, work the lift and recheck.

Tools: Large drain tray (40 L), Spanners, Funnel or pump

Steering box oil, power steering oil and filter change

Steering · every 1,200 hours

The handbook's 1,200-hour service says change the steering box oil and the power steering oil, and replace the filter element in the power steering tank. The steering box level is checked every 400 hours.

Part	Qty	Notes	Part number
Steering box oil	1	ISO VG 32. Check your handbook	check your handbook
Power steering oil	1	ISO VG 32. Check your handbook	check your handbook
Power steering tank filter element	1	Check your handbook	check your handbook

Step-by-step

Drain and refill the steering box to the top of the filler neck.
Drain the power steering circuit, change the filter element in the tank and refill.
Run the engine and turn lock to lock to bleed the system, then top up.

Tools: Drain tray, Spanners, Funnel

Front drive axle oil change (6245)

Front axle · every 2,400 hours

The handbook says change the front drive axle oil, including the double joints and hub reductions, every 2,400 hours (4WD models only). The levels are checked every 100 hours.

Part	Qty	Notes	Part number
Front axle oil	1	Check your handbook	check your handbook

Step-by-step

Park level and stop the engine.
Drain the centre housing and both hub reductions.
Refill each to its level plug with the right oil.
Check for leaks after a short drive.

Tools: Drain tray, Spanners, Oil pump

Coolant change

Cooling · every 2 years

The handbook says use Fridex antifreeze with demineralised water (1 : 1.5) and change it at least every two years.

Part	Qty	Notes	Part number
Coolant	1	Fridex or equivalent with demineralised water, 1 : 1.5	check your handbook

Step-by-step

With the engine cold, drain the radiator and block.
Refill with the mixture and run the engine to purge air.
Let it cool and top up.

Tools: Drain tray, Funnel, Antifreeze tester

Oils, fluids and capacities

System	Oil or spec	Capacity
Engine	Zetor Z 6201 4-cylinder direct-injection diesel with centrifugal oil filter
Engine oil	Check your handbook (the lubricant table was not in the translated part). Zetor's 2024 oil sheet says UNI 100 10W-40 replaces the earlier Zetor engine oils but is aimed at tractors from 2013 on.	Check your handbook
Coolant	Fridex (Spolana) antifreeze and demineralised water, 1 part to 1.5 parts; change at least every two years. Capacity: check your handbook.
Valve clearances	0.25 ± 0.05 mm, inlet and exhaust, engine cold
Gearbox, final drive and hydraulics (shared)	Check your handbook. Zetor says its current UNI 200 UTTO 10W-30 suits the transmissions of the older UR I tractors.	Dipstick marks: 6211 upper 32 L, middle 25.5 L, lower 16.5 L; 6245 upper 34 L, middle 27.5 L, lower 18.5 L. Standard fill 25 L (plus 2 L with a front drive axle). Never below 15 L; no more than 10 L may be drawn off by external rams.
Power-assisted steering	Check your handbook. Zetor says its UNI 300 (ISO VG 32, HM) suits UR I steering.	Check your handbook
Front drive axle centre housing, joints and hub reductions (6245)	Check your handbook	Check your handbook
Brakes and clutch release (hydraulic)	Brake fluid; check your handbook	Check your handbook
Fuel tank	Diesel	70 L standard; 55 L option (45 L is the 5211–5245 size)

Specifications


Lift force at the lower link ends	24 kN (6211 to 7745); 17.5 kN on the 5211–5245
Three-point linkage	Category I and II (720 / 870 mm between lower ball centres)
Injector opening pressure (Z 5201, Z 6201, Z 7201)	17.5 MPa minus up to 0.8 MPa; set at the top of the range
Fan and alternator V-belt	Maximum deflection 15 mm
Steering column flexible coupling bolts	13–15 N·m

Known problems

Same handbook as the 7745

The 6211/6245 share the 5211–7745 handbook. The engine oil grade and sump capacity are in the untranslated part; check your handbook.

Gearbox level on slopes

Fill to the upper dipstick mark when working on slopes or with external rams. Never let the level fall below 15 L.

Five-year rubber parts

The handbook says the rubber parts of the air and hydraulic brake systems must be replaced within five years of the tractor's build date.

Repair guides

Fuel filters, bleeding and injector check (Z 6201 engine) (Moderate, 30 minutes to bleed; 2–3 hours for injectors): Engine will not start or stops after a filter change or running dry, misfire, black smoke, knock, loss of power.
Trailer air brakes: adjustment, function check and rubber parts (Moderate, 1–1.5 hours): Trailer brakes late, weak or dragging, trailer not braking on the hand brake, pressure slow to build, regulator blowing off at the wrong pressure.
Front wheel bearings, track change and toe-in (2WD) (Moderate, 1–2 hours): Front wheel play or rumble, uneven front tyre wear, steering wander, after changing the front track.
Running hot: fan belt, radiator and pressure cap (Easy, 30 minutes to 2 hours): Temperature gauge high, coolant pushed out of the cap, charge lamp on, squealing belt.

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

Parts list with genuine part numbers

Maker part numbers per site service schedule: 6211 / 6245 (Mid-1980s to early 1990s (handbook edition 2/1988)); check serial range

Transmission and hydraulics

Part	Part number	Qty	Notes
Hydraulic filter element	70114566	1	Zetor number 70114566 is quoted for the 5211–7745 by parts sellers; check your handbook

Sources

Open Farmyard Workshop