Sonalika 750 DI Sikander tractor’s full name is “Sonalika DI 750 III Sikander Heavy Duty Mileage (HDM)”, tractor has 4 cylinder naturally aspirated liquid engine with 3707 CC displacement which can produce about 55 HP at 2000 engine rated RPM. Tractor has dual clutch with 8F+2R transmission and 12F+12R transmission is also available in HDM+ model. Tractor can produce 210 Nm torque at 1200 engine RPM. Tractor has 2000 kg weight lifting capacity and 65 litres fuel tank capacity. Here are some more specifications of tractor:
Engine
| Specifications | Data |
|---|---|
| 1. Engine Make | International Tractor Ltd. |
| 2. Engine Type |
|
| 3. Max Torque | 210 Nm at 1200 ERPM |
| 4. HP | 55 hp category |
| 5. Bore*Stroke (MM) | 100*118 mm |
| 6. Displacement | 3707 CC |
| 7. Engine rated RPM | 2000 |
| 8. Pump | Inline Bosch |
| 9. Max engine RPM in tachometer | 2500 |
| 10. SFC | No data available |
| 11. Idle RPM | 700 +- 50 |
| 12. Max. idle RPM | 2200 +-50 |
| 13. Firing order | 1-3-4-2 |
| 14. Working RPM range | 1200 to 1800 |
| 15. Fuel injections timing | 14° BTDC |
Transmission
| Specifications | Data |
|---|---|
| 1. Clutch type & size | Dual with 280 mm dia |
| 2. Transmission | 8F+2R 12F+12R |
| 3. Clutch paddle free play | 25-30 mm |
| 4. Transmission type | Constant mesh |
There is no data available for gear speed while here is information about minimum and maximum speeds according to transmission only:
| Transmission | Minimum speed | Maximum speed |
|---|---|---|
| 8F+2R | 2.99 | 32.02 |
| 12F+12R | 1.53 | 33.59 |
Brakes
| Specifications | Data |
|---|---|
| 1. Type | Oil Immersed Brakes |
| 2. Minimum turning diameter with brakes | 6.99 m for LHS 6.77 m for RHS |
| 3. Minimum turning diameter without brakes | 7.79 m for LHS 7.63 m for RHS |
| 4. Brake paddle free play | 55 to 60 mm |
Steering
| Specifications | Data |
|---|---|
| 1. Mechanical | Available (optional) |
| 2. Power | Available (standard) |
| 3. Oil capacity (power steering) | 2.5 liters |
| 4. Oil capacity (mechanical steering) | 0.6 liter |
PTO
| Specifications | Data |
|---|---|
| 1. PTO HP @ Rated RPM | No data available |
| 2. PTO speeds-Standard | 540 PTO RPM at 1680 engine RPM for 8F+2R 540 PTO RPM at 1667 engine RPM for 12F+12R |
| 3. PTO speeds – Economy | Not available |
| 4. PTO speeds – Reverse | Available with 12F+12R only |
| 5. PTO speeds – Ground speed | Available only in 8F+2R transmission |
Hydraulics
| Specifications | Data |
|---|---|
| 1. Type | Live Auto depth and draft control |
| 2. Lift capacity | 1800 +-200 kg |
Tyres & pressure according to conditions
| Tyre | Pressure without heavy load | Pressure with ballast or heavy equipment |
|---|---|---|
| 6.50*20 7.50*16 | No data available | No data available |
| 16.9*28 | No data available | No data available |
| 14.9*28 | No data available | No data available |
Overall dimensions
| Measurements | For HDM | For HDM+ |
|---|---|---|
| 1. Wheel base | 2125 mm | 2210-+10 mm |
| 2. Overall length | 3745 mm | 3510 mm |
| 3. Overall width | 1810 mm | 1953 mm |
| 4. Overall height | 2300 mm | 2300 mm |
| 5. Min. ground clearance | 422 mm | 390 mm |
| 6. Total weight | 2390 kg | 2390 kg |
Others
| Specifications | Data |
|---|---|
| 1. Battery | 12 V, 88 Ah |
| 2. Alternator | 35 Amps. |
| 3. Fuel tank capacity | 65 Litres |
Here are the details about tractor’s lubrication oil type and amount to maintain tractor properly:
Oil & Lubrication
| Parts | Amount | Type |
|---|---|---|
| Engine oil | 10.75 liters | SAE-20W40 |
| Air cleaner | 0.7 to 1 liter | SAE-20W40 |
| Transmission/Hydraulics | 60 liters | ELF-2412 (for wet brakes) EP-80 (for dry brakes) |
| Power steering | 2.5 liters | Dexron II-D |
| Mechanical | 0.6 liter | EP-80 |
| Coolant | No data available | Mixture of 95% DM water and 5% ethylene glycol |
| Grease | As required | No data available |
Here are the details about tractor’s instrument cluster:
- Tachometer with 2500 maximum engine RPM.
- Fuel gauge.
- Engine oil pressure gauge.
- Digital hour meter.
- Volt meter.
- High beam indicator.
- Engine coolant temperature gauge.
- Turn indicator lights.
- Battery charging indicator.
- Trailer turn indicator lights (optional).
- Parking brakes (optional).
To get maximum performance from tractor in low fuel consumption and maintenance it is very important to select perfect implement for the tractor and to better understand about it here is some information:
Implement Selection
| Implement | Type | Engine RPM | Gear |
|---|---|---|---|
| Rev. MB Plough | 2 Bottoms | 1400 to 1500 | L4, M2 & H1 |
| Cultivator | 11 to 13 tines | 1700 to 1800 | H1 & M3 |
| Disc harrow | 18 disc | 1700 to 1800 | H1 & M3 |
| Rotavator | 8 feet | 1680 | L1, L2 & M1 |
| Straw reaper | 6 to 6.88 feet cutter bar | 1667 | L1 & L2 |
| Bailer | 450 to 520 mm pick up width | 1667 | L1 & L2 |
Water ballasting
To avoid wheel slippage extra weight mounting and water ballasting can be used, for mounting extra weight on tractor extra iron weight rings can be used while water ballasting is another way to avoid wheel slippage and generally in water ballasting it is recommended to fill tube with 75% of water and 25% of air.
In case of extremely cold condition it is recommended to mix calcium chloride with water (600 gram in 1 liter of water) then this solution should be filled in tube. Here is a general table for water ballasting for all Sonalika models with different tyre sizes:
| Rear tire size | Water in litres |
|---|---|
| 12.4*28 | 160 litres |
| 13.6*28 | 180 litres |
| 14.9*28 | 190 litres |
| 16.9*28 | 200 litres |
| 16.9*30 | 210 litres |
Troubleshooting
Here are most of the common problems which may happen with tractor after a long time of use or lack of proper maintenance and their possible reasons:
- Engine not starting or starting with difficulty:
- Low fuel level.
- Wrong starting method.
- Air trapped in fuel system.
- Clogged fuel filters.
- Blockage in fuel lines.
- Fault in fuel injectors.
- High engine oil consumption:
- Level of engine oil is high.
- Quality of engine is not good.
- There is leakage of engine oil.
- Selection of wrong grade of engine oil.
- Engine not attaining full power:
- Leakage of engine oil.
- Overloading of engine.
- Air cleaner clogged.
- Fuel filters clogged.
- Overheating of engine.
- Fault in working mechanism of throttle.
- Operating temperature for engine is low.
- Wrong setting of valve clearance.
- Abnormal sounds from engine:
- Level of engine oil is low.
- Engine oil pressure is low.
- Overheating of engine.
- Setting of valve clearance is wrong.
- Low engine oil pressure:
- Engine oil level is less.
- Engine oil pump is not working properly.
- Grade of engine oil is not good.
- Overheating of engine:
- Fault in radiator cap.
- Radiator fins are clogged.
- Engine oil level is low.
- Level of coolant is low.
- Overloading of engine.
- Loose fan belt.
- Fault in thermostat.
- Internal choking of cooling system.
- Fault in temperature gauge.
- High fuel consumption:
- Wrong setting tappets.
- Air cleaner is clogged.
- Overloading of engine.
- Unnecessary high RPM.
- Low temperature for engine working.
- Fault in injection nozzles.
- Overheating of hydraulic oil:
- Oil level is high or very low.
- Hydraulic strainer is clogged.
- Wrong setting of linkage levers.
- Hydraulic filter is clogged.
- Linkage moves down slowly:
- Wrong setting of response valve.
- Tight bush.
- Linkage is not lifting fully:
- Wrong internal adjustment.
- Wrong lift arm setting.
- Hydraulic system is not working properly:
- Hydraulic oil level is very low.
- Hydraulic strainer is clogged.
- Check setting of response valve.
- Fault in hydraulic pump.
Here is the details about tractor’s periodic maintenance chart:
Periodic Maintenance chart
| Jobs | |||||
|---|---|---|---|---|---|
| First 50 | 300 | 600 | 900 | 1200 | |
| Complete washing of tractor | ✓ | ✓ | ✓ | ✓ | ✓ |
| Lubrication of all greasing points | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check & top-up cooland level | ✓ | ✓ | ✓ | ✓ | ✓ |
| Adjustment of valve clearnance | ✓ | ✓ | ✓ | ✓ | ✓ |
| Changing of engine oil & oil filter | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tight cylinder head nuts & bolts | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check & adjustment of idle speed | ✓ | ✓ | ✓ | ✓ | ✓ |
| Air cleaner oil | Replace after every 50 hours in normal working condition & clean pre bowl everyday | ||||
| Tight climps of hoses | ✓ | ✓ | ✓ | ✓ | ✓ |
| Change primary fuel filter | ✓ | ✓ | |||
| Change secondary fuel filter | ✓ | ✓ | |||
| Clean fuel strainer | ✓ | ✓ | ✓ | ✓ | ✓ |
| Change single stage filter | After 500 hours of normal operaions | ||||
| Drain water from separator | ✓ | ✓ | ✓ | ✓ | ✓ |
| Clean feed pump | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check & adjust nozzle spray pressure | ✓ | ||||
| Check & adjust free play in clutch paddle | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check & top up transmissin & hydraulics oil | ✓ | ✓ | ✓ | ✓ | |
| Change transmission & hydraulics oil | ✓ | ||||
| Replace transmission & hydraulics oil filter | ✓ | ✓ | ✓ | ✓ | ✓ |
| Clean hydraulic oil strainer | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tight hoses and clamps | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check proper functioning of hydraulics | ✓ | ✓ | ✓ | ✓ | ✓ |
| Clean oil strainer | Rep. | ✓ | ✓ | ✓ | ✓ |
| Grease king pin | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check & adjust free play in paddles | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check functioning of brakes | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tight wheel nuts and bolts with torque | ✓ | ✓ | ✓ | ✓ | ✓ |
| Maintain proper tyre pressure | ✓ | ✓ | ✓ | ✓ | ✓ |
| Functioning of all gauges | ✓ | ✓ | ✓ | ✓ | ✓ |
| Functioning of all lights | ✓ | ✓ | ✓ | ✓ | ✓ |
| Check electrolyte level | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tight terminal and apply jelly | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tight front axle bolts | ✓ | ✓ | ✓ | ✓ | ✓ |
| Grease stub axle | ✓ | ✓ | ✓ | ✓ | ✓ |
| Grease wheel bearings & greasing points | ✓ | ✓ | ✓ | ✓ | ✓ |
| Change front axle oil | ✓ | ✓ | ✓ | ||
| Tight front wheel bolts & nuts | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tight trunnion bolts | ✓ | ✓ | |||
| Lubrcate all greasing points | After every 50 hours in dry land applications | ||||
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