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| Home / Farm Tractors / Case IH Tractors / Case IH DX33 |
Case IH DX33 Troubleshooting
The
Case IH DX33 compact utility tractor was manufactured from 2001 to 2003. The
Case IH DX-33 powertrain system components: a 91.3 cu.in (1.5 L) Shibaura N843
vertical 3-cylinder liquid-cooled diesel engine and hydrostatic transmission
with infinite forward and reverse gears.
The engine has a cylinder bore of 3.32" (84 mm), piston stroke of 3.56" (90 mm), and rated power of 33 hp (24.6 kW). The maximum travel speed (forward and reverse): 16 mph (25.5 kph). The open center hydraulic system has a gear pump with a rated capacity of 7.6 gal/min (28.8 l/min).
The lift capacity is 1635 lbs (740 kg) at 24" (610 mm) behind pin. The tractor is equipped with a hydrostatic steering system, mechanical wet disc brakes, 7.00x14 (Std) or 24x8.50-14 (Turf) front tyres, and 11.2x24 (Std) or 13.6x16 (Turf) rear tyres. The Case IH DX33 tractor can be equipped with Case IH L130 loader with lift capacity to full height of 800 lbs (362 kg) and breakout force of 1602 lbs (726 kg).
| Engine Troubleshooting |
| Engine difficult to start or won't start |
There is air in the fuel system - Bleed the system.
Fuel filter element clogging - Change the filter element.
Fuel injection nozzles are dirty or defective - Check and replace nozzles if required.
Dirt or water in fuel system - Drain water or flush dirt from the system.
The valve clearance is incorrect - Adjustment procedure required.
Fuel injection pump malfunction - Rebuild or install a new injection pump.
| Engine starts and immediately shuts off |
Plugged air filter - Service or replace the air filter.
Fuel filter plugged - Install new filter element.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Fuel injectors are faulty or clogged - Clean or replace fuel injectors.
Fuel injection pump failure - Change pump or rebuild it.
| Engine stops unexpectedly during operation |
Engine is not preheated - Warm up the engine.
Dirty fuel filter - Replace the filter element.
There is air in the fuel system - Bleed the system.
Fuel injection nozzles are clogged or faulty - If necessary, replace with a new nozzle.
Improper setting of fuel injection pump timing - Use the correct fuel injection pump timing adjustment.
| Engine stalls at idle |
Low idle speed setting is incorrect - Adjust low idle speed.
Fuel injection pump is not working correctly - Rebuild or change fuel pump.
Fuel injectors are faulty or clogged - Test and replace fuel injectors if necessary.
Incorrect valve clearance - Check and adjust as required.
| Poor engine power |
Air filter plugged - Change air filter element.
Clogged or burnt injection nozzle - If necessary, replace with a new nozzle.
Insufficient fuel injection pressure - Correct the pressure settings.
Valve clearance is wrong - Correct valve clearance.
Incorrect low idle setting - Correct the settings.
Restricted fuel lines or hoses - Fuel hoses and lines must be clean.
Cylinder head gasket is defective - Change cylinder head gasket.
Piston rings are damaged or leaking - Install new piston rings.
| Engine overheating |
Insufficient coolant - Fill the cooling system and check components for leaks or other faults.
Low engine oil level - Fill up the engine oil.
Dirty radiator fins or defective radiator cap - Clean radiator or replace cap.
Fan belt is loose or defective - Belt replacement is recommended.
Engine is running overloaded - Shift to lower gear or reduce the load.
| Oil pressure is low |
Low oil level - Checking oil level and add if necessary.
Oil filter element clogging - Replace or clean engine oil filter element.
Oil grade or viscosity is wrong - Use oil of proper viscosity.
Incorrect crankshaft bearing oil clearance - Bearings need to be reinstalled.
Defective oil pump - Repair or replace.
| Engine knocking sound or abnormal noise |
Engine oil level low - Check oil level and add oil as required.
Engine is cold - Warm up engine as required.
Improper fuel injection timing - Adjust as recommended.
Low idle speed setting is incorrect - Adjust as required.
Fuel injectors are dirty or defective - Test and replace fuel injectors if necessary.
Misaligned or faulty connecting rod - Alignment procedure or replacement is required.
Pistons are worn or broken - Pistons need to be replaced.
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission noise |
Low transmission oil level or contaminated oil - Change transmission oil or top up to proper level.
Speed control linkage is defective or unadjusted - Replace or adjust linkage.
Stuck relief valve - Replace valve as required.
Transmission overloaded - Reduce loading.
Transmission components are damaged or worn - Replace or repair defective components.
| Low power |
Lack of transmission fluid - Checking transmission fluid level and add if necessary.
Relief valve is stuck - Change the valve.
Bent or unadjusted speed control pedal linkage - Replace or adjust linkage.
| Transmission oil overheating |
Lack of transmission fluid - Checking transmission fluid level and add if necessary.
Transmission fluid filter element is clogged - Service or replace the transmission fluid filter.
Cooling components are damaged or clogged - Inspect all cooling components and service or change if necessary.
Excessive transmission load - Reduce the load is required.
| Transmission oil leaking |
Damaged seals or gaskets - Install new components.
Internal transmission housing pressure is too high - Change defective parts.
Clogged transmission fluid return pipe - Clean or change return pipe.
| Hydraulic System Troubleshooting |
| Hydraulic fluid pressure is low |
Low hydraulic fluid level - Checking hydraulic fluid level and add if necessary.
Hydraulic fluid filter element is clogged - Clean or change hydraulic filter.
Hydraulic pump malfunction - Change or repair hydraulic oil pump.
Hydraulic control valve is not set properly - Adjust properly.
Hydraulic cylinder is faulty - Repair or change hydraulic cylinder.
Leaking hydraulic pipes - Check the hydraulic system and fix leaks.
| Hydraulics overheating |
Main relief valve malfunctioning - Relief valve need to be replaced.
Improper type of hydraulic fluid - The correct type of fluid must be used.
Dirty hydraulic fluid - The fluid must be changed.
Air in hydraulic lines - Bleed hydraulic lines.
| 3-point hitch can't lift or lifts too slowly |
Excessive load on hitch - Reduce loading.
Hydraulic oil level low - Check and refill the hydraulic oil.
Hydraulic oil filter element is clogged - Replace filter element or clean if required.
Hydraulic pump is defective - Change or repair hydraulic fluid pump.
Main relief valve failure - Replace relief valve.
Defective hydraulic spool valve - Change or repair hydraulic valve.
Hydraulic cylinder failure - Change or repair hydraulic cylinder.
Suction pipe is loose or broken - Repair or replace pipe.
| 3-point hitch won't lower or lowers slowly |
Incorrect setting hydraulic control valve - Use the correct adjustment.
Broken hydraulic cylinder - Change or repair hydraulic cylinder.
The 3-point hitch is not adjusted - Need to make adjustments.
Hitch cross shaft is damaged - Install a new shaft.
| Hitch drop or lift is jerky |
Air in hydraulic lines - Bleed hydraulic lines.
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil.
Hydraulic pump not working - Install a new hydraulic oil pump.
Damaged hydraulic control valve - Replace or repair the valve.
Hydraulic cylinder failure - Install a new hydraulic cylinder or repair it.
| Steering System Troubleshooting |
| Stiff steering |
Improperly fitted or damaged steering column - Refit or change the steering column.
Air in steering system - Bleed air from system.
Not adjusted toe-in - Check toe-in and correct.
Front tires are worn unevenly - Install new tires.
Steering pump failure - Repair or change steering pump.
Worn or stuck pump flow control valve - Change or flush control valve.
Steering fluid level low - Checking steering fluid level and add it if necessary.
| Excessive play in steering |
Worn steering column shaft or coupling - Replace defective part.
Faulty steering pump - Install a new steering pump.
Loose or worn steering linkage components - Repair or replace steering linkage.
| Tractor pulls to left or right |
Tire pressure is uneven - Adjust the tire pressure.
Incorrect toe-in - Check toe-in and correct.
Steering linkage components are loose or worn - Change or repair steering linkage.
Improperly adjusted or defective front hub bearings - Adjust properly or change bearings.
| Electrical System Troubleshooting |
| Battery cannot be charged |
Corroded or loose wire connections - Clean or tighten wiring connections.
Faulty battery terminal clamps - Terminal clamps need to be replaced.
Battery bad cell - Change the battery.
Belt is loose or defective - Adjust belt tension or replace belt.
| Starter turns slow |
Low battery voltage - Charge the battery.
Battery does not hold charge - Service or replace the battery.
Corroded battery terminals or disconnected wires - Check wire connections and change or service terminals.
| Starter is not cranking |
Battery is discharged or defective - Recharge or change battery.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery capacity - Low battery charging, charge as required.
Starter motor is damaged - Repair or change starter.
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| Farm Tractors Technical Specifications |