Zetor 2011 / 3011 / 4011 service schedule

1. Change the oil at the end of a day's work while it is warm. Park level and stop the engine.
2. Unscrew the magnetic drain plug and clean the metal off it.
3. Undo the nuts on the oil cleaner holder and take off the bowls with their elements.
4. Wash the elements in paraffin, petrol or diesel, taking the mesh discs off their centre spindles. Do not mix up coarse element 1 and fine element 2: the mesh is different.
5. Dry the bowls and elements fully; even traces of solvent spoil the oil.
6. Reassemble, fill the bowls about half full with clean oil and refit them.
7. Fill the engine to the top mark, turn the engine over a few times by hand, then start and watch the oil pressure (green) lamp. Check the bowls are sealed.

Tools: Drain tray (15 L), Spanners, Paraffin, petrol or diesel for washing, Rags

1. Check the gearbox, outer final drive and injection pump oil levels and top up.
2. Air cleaner: undo the wing nut, check the settling bowl, unclip the three lower catches, empty the pre-cleaner, wash the body, element and swirl plate in petrol or diesel, dry and refill the body to the mark with clean, unused engine oil. Grease the rubber ring face.
3. Turn the water pump greaser down one turn. Check fan belt sag: 15 mm maximum.
4. Oil the clutch release collar with 0.06 L of oil.
5. Grease the front axle pin, king pins, the right-hand hydraulic linkage box nipple and the three-point linkage ball joints.
6. Check the glass sediment bowl on the lift pump and drain oil from the tyre inflator.
7. Battery electrolyte 15 mm over the plates; clean the terminals. Check brake fluid (≈0.3 L reservoir).

Tools: Grease gun, Oil can, Spanners, Rule

1. Drain the old oil. Take the elements out of the oil cleaner bowls.
2. Fill the empty bowls with flushing oil and refit them, then fill the engine with flushing oil between the dipstick marks.
3. Run the engine at idle for about 10 minutes.
4. Drain the flushing oil from the engine and cleaners, refit the washed elements and fill with fresh engine oil.
5. Check the clearance between the clutch release levers and the collar.

Tools: Drain tray, Spanners, Paraffin

1. Close the fuel tap. Undo the centre-bolt nuts and lower the bowls.
2. Wash the bowls and fit a new element 1 in the bowl marked 1 on the holder. Do not swap elements 1 and 2. Keep the bowl seals intact.
3. Bleed: open the tap, loosen the sediment bowl clamp until it fills without bubbles, then retighten.
4. Loosen both filter bleed screws and pump the lift pump by hand until air-free fuel flows; tighten the coarse filter screw first, pump a little more, then the fine one.
5. Loosen the injection pump bleed screws and pump until air-free fuel flows; tighten left then right.

Tools: Spanners, Diesel for washing, Rags

1. Fit a new fine element 2 as in the coarse filter task and bleed the fuel system.
2. Check the cylinder head bolts are tight to the handbook torque.
3. Engine cold: remove the valve covers, turn the engine until both valves of a cylinder are closed and set inlet 0.20 mm, exhaust 0.30 mm. The shorter rockers are the inlets.
4. Have the injectors checked and set to 160 atm.
5. Check front toe-in (6–8 mm) and front hub bearing play, and adjust the hand brake.
6. Drain the cooling system and flush with clean water to wash out deposits, then refill.

Tools: Spanners, Feeler gauges, Torque wrench, Injector tester (or dealer), Hose

1. Drain the gearbox warm, fill with flushing oil, run briefly, and drain again.
2. Clean the hydraulic pump suction strainer.
3. Refill the gearbox with fresh oil to the mark (higher level for hydraulic work on slopes).
4. Drain and refill both outer final reduction housings with fresh oil.
5. Refill the front hub caps with grease.
6. With the engine sump drained, remove the lower cover and wash the oil pump suction strainer; refit and tighten the cover bolts.
7. Check the injection pump elements for leaks with a gauge (dealer job).

Tools: Large drain tray (30 L), Spanners, Paraffin, Pump

1. Drain the injection pump/governor oil from the plug under the check hole and refill through the shared filler until oil reaches the bottom of the check hole on the governor.
2. Drain and refill the steering box, and check steering free play at the wheel.
3. Clean and flush the fuel tank, and flush the radiator with a soda solution.
4. Have the dynamo and starter checked, and the valves and piston rings looked at by a workshop.

Tools: Spanners, Small drain tray, Soda solution for the radiator