Daily & periodical maintenance of tractor
Proper maintenance of tractor prolongs the life of machine, reduce the repairing cost and ensures trouble free working.
Daily and periodical attentions are as follows
After 10 hrs working (daily)
Water is checked in radiator and battery
Air pressure in tyre is checked before taking the tractor in the field.
Oil level in the pump is checked.
Under dusty condition air precleaner and air cleaner is cleaned daily.
Use grease to lubricate all points given in the maker’s handbook.
Fuel tank is made full in the evening after the work is over.
Check if all the nuts and bolts.
After 60 hrs of working (weekly)
Check the oil level in the gearbox and in the differential housing and if required top up the oil.
Check the fan belt tension of the tractor.
Tighten the battery and starting motor terminals.
Clean the fuel filters of the tractor.
Clean the spark plugs.
Examine the oil level in the oil cleaner and if dirty change the oil.
Replenish the grease in the water pump. Some hard grease should be used.
Clean the sediment bowl of the fuel line.
When the tractor is new oil is changed at 60 hrs period and later 120 hrs period.
After every 300 working hours (monthly)
Change the filter element of the tractor if it is explicable.
Check up the value clearance.
Clean the injectors and adjust the injection pressure on injector testing machine.
Tighten the cylinder heads.
Put the grease in the D.C. generator ball bearing.
Check the carbon, brush the assembly and commutator of the D.C. generator.
After 720 working hours
Transmission oil is changed.
Front and rear wheel axle bearing are washed and repacked.
Flush the cooling system thoroughly.
Reverse the front wheel types on their rims to ensure uniform wear.
Flush the fuel fank.
After 1000 hrs of working (after 6 months)
Replace the fuel filters.
From the trained mechanic get the following works done - remove cylinder heads, decarbonize piston top and combustion chamber, clean carbon deposits from inlet and exhaust ports and cylinder head, check the brushes of the starter motor and dynama.
After 2000 hrs of working (annually)
Overhauling of engine
Usually it has been found that under average working conditions, the compression of the engine goes down after about 4000 hrs (working). The engine becomes unable to develop full power on an average load conditions. In such case the engine needs replacement of cylinder liners and piston rings. The valves are refaced, seats are grinded and bearings are adjusted. Replacement of oil seal, bushings and bearings at required places become essential. Grinding of crankshaft and can shaft bearing is normally done after about 800 working hours.
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