________________________________________________________________________________________
| Home / Farm Tractors / Mahindra Tractors / Mahindra eMax 25 |
Mahindra eMax 25 Troubleshooting
The
Mahindra eMax 25 sub-compact utility tractor was manufactured between 2014 and
2016. The Mahindra eMax 25 driveline consists of Daedong 3C100LF three-cylinder
indirect injection liquid-cooled diesel engine and two-range hydrostatic
transmission. A 61.5 cubic inches (1L) engine has a cylinder bore of 2.95" (75
mm), piston stroke of 2.99" (76 mm), and rated power of 24 Hp (17.8 kW). The
maximum forward speed - 10.2 mph (16.4 km/h), maximum reverse speed - 10.2 mph
(16.4 km/h).
The open center hydraulic system includes a gear pump with rated fluid flow of 4.5 gpm (17 lpm). The Mahindra eMax 25 is equipped with a hydrostatic power steering system, wet disc brakes, 6.00x12 or 20x8.00-10 front tyres, and 9.50x16 or 29x12.50-15 rear tyres. The wheelbase is 57.5 inches (1460 mm). The tractor is compatible with a 60" mid-mount 3-blade side discharge Mahindra 25M mower deck with cutting height of 1-4" (25-102 mm), Mahindra ML422 front end-loader with a maximum lift height of 75.7" (1920 mm), and Mahindra eMax 25B backhoe with max digging depth of 76.3" (1940 mm).
| Engine Troubleshooting |
| Engine hard to start or will not start |
Air in the fuel system - Air bleeding.
Fuel filter plugging - Clean or change the filter.
Faulty fuel injection nozzles - Service or change injection nozzles.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Incorrect valve clearance - Adjust valve clearance.
Faulty fuel injection pump - Install a new pump or rebuild.
| Engine starts but stalls immediately |
Air cleaner is dirty - Clean or change.
Fuel filter plugged - Replace the filter element.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Damaged or clogged injectors - Replace or clean fuel injectors.
Damaged fuel injection pump - Repair or install new pump.
| Engine shuts off suddenly while running |
Coolant temperature is low - Warm up the engine.
Clogged fuel filter - Clean or replace the filter.
There is air in the fuel system - Bleed the system.
Defective or clogged injection nozzle - Install a new kit of correctly balanced nozzles.
Fuel injection pump timing is not adjusted - Set it up as required.
| Engine stalls while idle |
Low idle speed set incorrectly - Correct the settings.
Fuel injection pump is defective - Rebuild or replace pump.
Clogged or defective injectors - Inspect fuel injectors and change as required.
Improper valve clearance - Check and adjust as required.
| Engine power is insufficient |
Clogged air filter element - Air filter maintenance required.
Damaged or dirty injection nozzles - Check and replace nozzles if required.
Fuel injection pressure is incorrect - Adjust to correct pressure.
Valve out of adjustment - Adjustment procedure required.
Incorrect low idle speed adjustment - Correct low idle adjustment.
Fuel lines or hoses are clogged - Clean fuel system hoses and lines.
Cylinder head gasket is damaged - Install a new gasket.
Leaking or defective piston rings - Replace the piston rings as required.
| Engine is overheated |
Low engine coolant - Add coolant and check the components of cooling system.
Engine oil level low - Add oil to the engine crankcase.
Defective radiator cap or clogged radiator core - Change cap or clean radiator.
Fan belt is worn or faulty - Install new fan belt.
Diesel engine is overloaded - Reduce the load or use a lower gear.
| Low oil pressure |
Low crankcase oil level - Add oil as required.
Clogged oil filter element - Clean or replace engine oil filter element.
Wrong oil viscosity - Use oil of proper viscosity.
Excessive oil clearance of crankshaft bearing - Bearing needs to be changed.
Worn oil pump - Repair or change.
| Engine knocks or noises |
Engine oil level low - Need to add engine oil.
Engine is not warmed up to the required temperature - Warm up engine as required.
Improper setting of fuel injection pump timing - Adjust according to specifications.
Incorrect low idle speed adjustment - Correct the settings.
Clogged or defective injectors - Replace or clean fuel injectors.
Faulty or misaligned connecting rod - Connecting rod needs to be aligned or changed.
Worn or broken pistons - Replace the pistons as required.
| Hydrostatic Transmission Troubleshooting |
| HST transmission noise |
Contaminated transmission fluid or low fluid level - Top up to proper level or change transmission fluid.
Speed control linkage is worn or unadjusted - Adjust or change linkage.
Relief valve failure - Replace the valve.
Transmission is under excessive load - Reduce transmission load.
Damaged or worn components of hydrostatic transmission - Change or repair defective parts.
| Low power |
Low fluid level - Checking transmission fluid level and add if necessary.
Relief valve malfunction - Replace valve as required.
Worn or unadjusted speed control linkage - Adjust or install new linkage.
| Transmission fluid over heats |
Transmission fluid insufficient - Add fluid to the transmission housing.
Transmission oil filter is clogged - Service or change transmission oil filter.
Clogged or damaged cooling components - Inspect all cooling components and service or replace if necessary.
Transmission overload - Load needs to be reduced.
| Transmission fluid leaks |
Broken seals or gaskets - Change defective gaskets or seal.
High internal transmission housing pressure - Change defective parts.
Clogged oil drain line - Clean or replace drain line.
| Hydraulic System Troubleshooting |
| Hydraulic fluid pressure is insufficient |
Hydraulic fluid level low - Checking hydraulic fluid level and add if necessary.
Hydraulic oil filter is clogged - Clean or change hydraulic filter.
Hydraulic pump not working - Replace or repair hydraulic oil pump.
Hydraulic control valve is set improperly - The control valve must be set correctly.
Hydraulic cylinder is defective - Install a new hydraulic cylinder or repair it.
Leaking hydraulic lines - Check the system and repair leaks.
| Hydraulic system is overheated |
Main relief valve failure - Relief valve must be changed.
Hydraulic fluid type is incorrect - Pour the correct type of fluid.
Contaminated hydraulic fluid - Change hydraulic fluid.
There is air in the hydraulic system - Bleed hydraulic system.
| 3-point hitch fails to lift or lifts slowly |
Heavy load on the hitch - Load needs to be reduced.
Insufficient hydraulic oil - Need to add oil.
Dirty hydraulic fluid filter element - Clean the hydraulic filter element or replace if necessary.
Faulty hydraulic pump - Replace or repair hydraulic oil pump.
Main relief valve malfunctioning - Relief valve replacement required.
Hydraulic spool valve is faulty - Repair or change the valve.
Damaged hydraulic cylinder - Replace or repair hydraulic cylinder.
Loose or broken suction line - Tighten the pipe or replace it.
| Hitch not lowering or hitch lowers slowly |
Hydraulic control valve is not set properly - Adjust properly.
Hydraulic cylinder failure - Repair or install a new hydraulic cylinder.
Misadjusted hitch - Adjust the hitch.
Worn hitch cross shaft - Replace the shaft.
| Jerky lifting or lowering of three-point hitch |
Air in hydraulic system - Bleed air from hydraulic system.
Dirty hydraulic oil - The oil must be changed.
Hydraulic pump malfunction - Replace or repair hydraulic oil pump.
Defective hydraulic control valve block - Repair or change the valve.
Hydraulic cylinder not working - Replace or repair hydraulic cylinder.
| Steering System Troubleshooting |
| Steering is hard |
Damaged or incorrectly assembled steering column - Replace steering column or assemble correctly.
Air lock in the steering system - Need to bleed air.
Not adjusted toe-in - Check and adjust toe-in.
Uneven tire pressure - Inflate the tires properly.
Steering pump stopped working - Repair or replace steering pump.
Stuck or worn pump flow control valve - Replace or clean flow control valve.
Insufficient steering oil - Need to add steering oil.
| Excessive steering wheel free play |
Steering column coupling or shaft is extremely worn out - Change faulty component.
Worn steering pump - Install a new steering pump.
Worn or loose steering linkage assembly - Inspect and change as required.
| Front wheels wander to left or right |
Front tyres wear unevenly - Change the tyres.
Incorrect toe-in - Check toe-in and correct.
Steering linkage joints are worn or loose - Inspect and change as required.
Front wheel bearings are defective or improperly adjusted - Change or adjust bearings correctly.
| Electrical System Troubleshooting |
| Battery is not charging |
Corroded or loose electrical wire connections - Clean or tighten wiring connections.
Electrical terminal connectors are defective - Install new terminal connectors.
Bad cell in battery - Change the battery.
Loose or damaged belt - Belt needs to be adjusted or replaced.
| Starter turns slowly |
Low battery power - Battery needs to be recharged.
Battery will not hold charge - Battery needs to be serviced or replaced.
Terminals are faulty or battery cables are disconnected - Connect wires properly or change terminals.
| Starter is not working |
Battery is drained or defective - Replace or charge as required.
Wiring is improperly connected or disconnected - Check wiring and connect properly.
Low battery output voltage - Charge the battery.
Starter motor is faulty - Starter needs to be changed.
________________________________________________________________________________________
________________________________________________________________________________________
| Farm Tractors Technical Specifications |