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| Home / Farm Tractors / Mahindra Tractors / Mahindra 2645 |
Mahindra 2645 Troubleshooting
The
Mahindra 2645 is a 4WD compact utility tractor from 2600 Series. This model was
manufactured from 2018 to 2023. The components of Mahindra 2645 powerline
system: a 166.7 cubic inches (2.7L) Mahindra CE-45 4-cylinder direct injection
naturally aspirated liquid-cooled diesel engine with a rated power of 44 hp
(32.8 kW), and synchro shuttle transmission with 12 forward and 12 reverse
gears.
The maximum travel speed (forward/reverse): 16.3 mph (26 km/h) and 15.6 mph (25 km/h). The open center hydraulic system includes a gear pump with rated fluid flow of 8.2 gal/min (31 l/min). The Mahindra 2645 is equipped with a hydrostatic power steering system, wet disc brakes, 8.30x16 or 10.0-16.5 front tyres, and 12.4x24 or 43x16-20 rear tyres. The tractor is compatible with Mahindra 2645L front end-loader with a maximum lift height of 101.9" (2580 mm), and Mahindra 60B backhoe with maximum digging depth of 95" (2410 mm).
| Engine Troubleshooting |
| Engine difficult to start or won't start |
Air in fuel system - Bleed fuel system.
Clogged fuel filter - Service the filter.
Fuel injection nozzles are faulty or clogged - Test injection nozzles and change if necessary.
Water in the fuel system - Change fuel and repair fuel system.
Valve clearance is not correct - Need to adjust valve clearance.
Defective fuel injection pump - Replace injection pump or repair it.
| Diesel starts but immediately shuts off |
Air filter clogged - Clean or replace the element.
Clogged fuel filter - Install new filter element.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Damaged or clogged injectors - Test and replace fuel injectors if necessary.
Fuel injection pump is broken - Repair or replace injection pump.
| Engine shuts off suddenly while running |
Engine has not warmed up to the recommended temperature - Engine is not warmed up to the required temperature.
Dirty fuel filter - Install new filter element.
Air in the fuel pipes - Bleed the fuel pipes.
Defective injection nozzle - Install a new kit of correctly balanced nozzles.
Improper fuel injection timing - Adjust the pump as required.
| Engine stalls when idling |
Improperly adjusted low idle speed - Correct the settings.
Fuel injection pump is not operating properly - Change or repair the pump.
Defective fuel injectors - Change or clean fuel injectors.
Excessive valve clearance - Need to adjust valve clearance.
| Diesel engine is losing power |
Clogged air filter element - Clean or replace element.
Clogged injection nozzle - Change fuel injection nozzles.
Fuel injection pressure is wrong - Adjust to correct pressure.
Valve clearance is not correct - Have it adjusted.
Incorrectly adjusted low idle speed - Test and adjust.
Restricted fuel lines or hoses - Clean fuel lines and hoses.
Cylinder head gasket defective - Replace cylinder head gasket.
Worn or damaged piston rings - Replace piston rings.
| Engine overheats |
Lack of coolant in cooling system - Add coolant fluid and inspect the cooling system for leaks.
Engine oil level low - Checking oil level and add if necessary.
Dirty radiator fins or faulty radiator cap - Replace cap or clean radiator.
Excessive wear of the fan belt - Replace the fan belt.
Diesel engine is overloaded - Reduce load or shift to lower gear.
| Insufficient oil pressure |
Not enough oil in the engine - Fill the crankcase with oil.
Oil filter clogged - Change or service engine oil filter.
Wrong oil viscosity - Drain crankcase and refill with correct oil.
Excessive main bearing oil clearance - Bearing replacement required.
Oil pump failure - Replace as required.
| Abnormal engine knocking or noise |
Engine oil insufficient - Check oil level and add oil as required.
Low coolant temperature - Warm up to required temperature.
Fuel injection pump timing is not adjusted - Adjust as recommended.
Incorrect low idle speed adjustment - Adjust low idle speed.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
Connecting rod misalignment or failure - Align or change connecting rod.
Pistons are worn or scored - Replace the pistons.
| Hydrostatic Transmission Troubleshooting |
| Excessive HST transmission noise |
Insufficient oil level or contaminated oil - Add oil to proper level or pour fresh transmission oil.
Worn or unadjusted speed control linkage - Adjust or repair linkage.
Relief valve malfunction - Replace valve as required.
Transmission overload - The load should be reduced.
Defective or worn transmission parts - After disassembly and inspection, replace defective components.
| Loss of power |
Low fluid level - Check and refill the transmission fluid.
Relief valve is damaged - Replace relief valve as required.
Speed control pedal linkage is bent or not adjusted - Replace or adjust linkage.
| Transmission fluid overheats |
Transmission fluid level is low - Need to add transmission fluid.
Dirty transmission fluid filter element - Replace or service transmission fluid filter.
Cooling components are clogged or damaged - Inspect all cooling components and replace or clean if necessary.
Transmission overloaded - Reduce loading.
| Transmission fluid leaking |
Broken seals or gaskets - Change defective gaskets or seal.
High internal transmission case pressure - Replace worn components.
Plugged transmission fluid return tube - Service or replace return tube.
| Hydraulics Troubleshooting |
| Hydraulic oil pressure is low |
Low hydraulic oil level - Need to add oil.
Hydraulic oil filter element is clogged - Clean the hydraulic filter element or replace if necessary.
Hydraulic pump malfunction - Repair or replace hydraulic fluid pump.
Hydraulic spool valve is not set properly - Set the spool valve properly.
Hydraulic cylinder is faulty - Change or repair hydraulic cylinder.
Leaking hydraulic pipes - Find leaks in the system and fix it.
| Hydraulic system is too hot |
Defective main relief valve - Install a new relief valve.
Improper hydraulic fluid type - Use the proper type of hydraulic fluid.
Hydraulic fluid is contaminated - Fill up with new hydraulic fluid.
Air in hydraulic system - Bleed air from hydraulic system.
| Hitch can't lift or lifts too slowly |
Excessive hitch loading - Reduce loading.
Hydraulic oil level low - Need to add oil.
Hydraulic oil filter element is clogged - Clean or replace the hydraulic filter.
Defective hydraulic pump - Install a new hydraulic oil pump.
Main relief valve malfunctioning - Relief valve need to be replaced.
Defective hydraulic spool valve - Repair or change hydraulic valve.
Hydraulic cylinder is defective - Repair or replace hydraulic cylinder.
Loose or broken suction pipe - Retighten or replace pipe.
| 3-point hitch can't drop or drops too slowly |
Not adjusted hydraulic control valve - Need to adjust.
Faulty hydraulic cylinder - Repair or change hydraulic cylinder.
The three-point hitch is not adjusted - Adjust the hitch.
Hitch rock shaft is damaged - Install a new shaft.
| Hitch lifting or lowering is jerky |
Air in hydraulic pipes - Bleed hydraulic pipes.
Hydraulic fluid is dirty - Hydraulic fluid change required.
Hydraulic pump failure - Change or repair hydraulic oil pump.
Hydraulic spool valve block is faulty - Install a new hydraulic valve or repair it.
Faulty hydraulic cylinder - Repair or replace hydraulic cylinder.
| Steering System Troubleshooting |
| Difficult steering |
Improperly assembled or defective steering column - Reassemble or change the steering column.
Air in the hydraulic steering system - Need to bleed air.
Not adjusted toe-in - Check toe-in and correct.
Tire pressure uneven - Inflate the tires correctly.
Steering pump is worn - Replace or repair steering pump.
Pump flow control valve is worn or stuck - Install a new flow control valve or clean it.
Steering fluid level is insufficient - Add oil to steering system.
| Excessive play in steering |
Steering column coupling or shaft has maximum wear - Replace defective component.
Steering pump is faulty - Repair or replace steering pump.
Loose or worn steering linkage components - Replace or repair steering linkage.
| Tractor pulls to right or left |
Uneven wear on front tyres - Replace the tyres.
Incorrect toe-in - Adjust toe-in wheels.
Steering linkage components are loose or worn - Repair or change steering linkage.
Improperly adjusted or worn front wheel bearings - Adjust properly or replace bearings.
| Electrical Troubleshooting |
| Battery will not charge |
Loose or corroded wire connections - Tighten or service cable connections.
Battery terminal clamps are faulty - Install new terminal clamps.
Faulty cell in battery - Install a new battery.
Belt is defective or loose - Adjust belt tension or install a new belt.
| Starter turns slow |
Low battery output voltage - Battery is drained, recharge it.
Battery drains quickly - Service charging system or change battery.
Disconnected cables or faulty battery terminals - Connect cables correctly or replace terminals.
| Starter is not working |
Battery is drained or worn - Recharge or replace battery.
Disconnected or incorrectly connected wires - Inspect battery wires and connect correctly.
Battery voltage is low - Battery is drained, recharge it.
Damaged starter motor - Starter should be replaced.
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| Farm Tractors Technical Specifications |