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John Deere 3650 Troubleshooting
The
John Deere 3650 utility tractor was manufactured from 1986 to 1993. The
components of JD 3650 powerline system: John Deere 6359 TL 4-stroke six-cylinder
turbocharged diesel engine and Power Synchron partial power shift transmission
with 16 forward and 8 reverse gears.
A 359 cubic inches engine power rating is 114 Hp (85,3 kW) at 2400 rpm.
Max. forward speed - 18,6 mph (30 kph), max. reverse speed - 8,5 mph
(13,7 kph). The closed center constant pressure hydraulic system used a
piston pump with rated fluid flow of 11,6 gpm (44 lpm).
The hydraulic system pressure is 2700 psi (186 bar). The four-wheel
drive John Deere 3650 tractor is equipped with 16.9x24 front tyres and
520/70x38 rear tyres. The 4WD wheelbase is 101,8 inches (2580 mm).
| Engine Troubleshooting |
| Diesel won't start or hard to start |
| Clogged fuel filter element - Change the filter element |
| Closed fuel cock - Open fuel on-off cock to inject fuel |
| Fuel lines leaking air - Tighten clamps, change faulty pipes |
| Dirty or faulty injectors - Service or change fuel injectors |
| Fuel injection pump damage - Install a new pump or rebuild |
| Poor compression - Check and change damaged parts |
| Engine stalls while running |
| Engine has not warmed up to the recommended temperature - Warm up the engine |
| Air trapped in fuel system - Bleed air |
| Uneven fuel injections - Repair or adjustment |
| Fuel filter is clogged - Filter maintenance required |
| Fuel injectors are defective or dirty - Inspect fuel injectors and replace if necessary |
| Diesel starts and immediately shuts off |
| Fuel injection pump timing is incorrect - Repair or replace fuel injection pump |
| Clogged fuel filter element - Replace filter element |
| Fuel injector nozzles are clogged or faulty - Test injector nozzles and replace as required |
| Faulty fuel injection pump - Change or repair the pump |
| Air cleaner element clogging - Change or replace air cleaner element |
| Too low idle RPM - Test and adjust |
| Fuel injection pump is faulty - Replace injection pump or repair it |
| Fuel injector nozzles are dirty or defective - Service or replace injector nozzles |
| Improper valve clearance - Check and adjust |
| Lack of coolant in cooling system - Fill the cooling system. Check system for leaks |
| Cooling system parts are defective or system is clogged - Change faulty components or service cooling system |
| Low engine oil level - Fill up the engine oil |
| Fan belt tension is improper or belt is defective - Adjust correctly or replace the belt |
| Thermostat malfunction - Check thermostat, replace if necessary |
| Fuel injectors are defective or dirty - Test fuel injectors and change if necessary |
| Improper fuel injection pressure - Adjust pressure to proper level |
| Air filter element is dirty - Replace or service air filter element |
| Dirty oil filter - Clean or replace engine oil filter element |
| Engine is overloaded - Change to lower gear or reduce load |
| Valve clearance is not correct - Correct valve clearance needs to be set |
| Low idle speed set incorrectly - Correct the settings |
| Restricted fuel pipes or hoses - Service fuel pipes and hoses |
| Loss of compression: Leaking or faulty valves - Change the valves |
| Abnormal engine knocking or noise |
| Fuel injection pump timing is incorrect - Adjust the fuel injection pump timing correctly |
| Fuel injector nozzles are clogged or faulty - Test injector nozzles and replace as required |
| Engine oil level is insufficient - Need to add engine oil |
| Engine is cold - Warm up the engine |
| Main bearings or crankshaft wear - Have bearings or crankshaft replaced |
| Piston rings are worn or broken - Replace the piston rings as required |
| Flywheel bolts are loose - Bolts need to be tightened |
| Diesel engine consuming too much oil |
| Oil leaks: Worn gaskets or seals - Install new components |
| Oil viscosity is wrong - Use oil of correct viscosity |
| Piston rings are defective or worn - Have piston rings replaced |
| Valve stems or guides are damaged - Replace the valves |
| Scored cylinder liners or pistons - Check liners and pistons, install new components as required |
| Electrical System Troubleshooting |
| Battery is not charging |
| Battery bad cell - Battery change required |
| Bad battery wiring harness - Inspect wiring for malfunctions, replace or repair |
| Loose or corroded cables and terminals - Clean or tighten cables and terminals |
| Improper belt tension adjustment or damaged belt - Adjust belt tension properly or change belt |
| Low battery capacity - Battery is drained, charge it |
| Battery runs out quickly - Service battery or change it |
| Damaged battery electrical wire harness - Inspect electrical wires for damage, change or repair |
| Battery cables and terminals are corroded or loose - Terminals and cables need to be tightened or cleaned |
| Low battery output voltage - Low battery charging, charge as required |
| Drained or worn battery - Charge or change the battery |
| Faulty starter motor - Starter should be changed |
| Incorrectly connected or disconnected wires - Check battery wires and connect correctly |
| Transmission Troubleshooting |
| Hard shifting |
| Clutch is not adjusted or faulty - Adjust clutch or replace if required |
| Gear shift linkage is damaged or loose - Repair or change shift linkage |
| Shift forks are damaged or worn - Change the shift forks |
| Faulty gear shifting mechanism - Faulty parts must be changed |
| Transmission oil pressure is insufficient |
| Insufficient fluid supply - Fill system with correct transmission fluid level |
| Transmission oil filter clogging (if fitted) - Change or service the transmission oil filter |
| Relief valve sticking - Install a new valve |
| Transmission is making noise |
| Bearings are worn or broken - Faulty bearings should be replaced |
| Fluid level is low - Check and refill the transmission fluid |
| Dirty transmission oil - Transmission oil must be changed |
| Incorrect backlash or gears are defective - Set backlash properly or change the gears |
| Shift forks are worn or damaged - Shift forks need to be changed |
| Gaskets or seals are broken - Replace worn gaskets or seal |
| Transmission housing is cracked - Replace housing or transmission assembly |
| Hydraulics Troubleshooting |
| Hydraulic system is too hot |
| Hydraulic system pressure is incorrect - Hydraulic pressure needs to be set correctly |
| Main relief valve is defective or unadjusted - Adjust or change relief valve |
| Dirty hydraulic oil - The oil must be changed |
| Air enters in hydraulic system - Inspect the suction line, pump seals, and fittings |
| Low hydraulic fluid pressure |
| Lack of hydraulic oil - Check oil level and add hydraulic oil as required |
| Hydraulic oil filter element is dirty - Clean the hydraulic filter element or replace if necessary |
| Defective hydraulic pump - Check pump capacity and change if necessary |
| Hydraulic control valve block is defective or set improper - Change or set correctly |
| Defective hydraulic cylinder - Check cylinder parts for wear or damage and replace if necessary |
| Hydraulic piping leaks - Detect leaks in hydraulic system and repair it |
| 3-point hitch won't raise or raises slowly |
| Not enough hydraulic fluid in the system - Need to add fluid |
| Hydraulic fluid is too cold - Allow fluid to warm |
| Hydraulic fluid filter is dirty - Change hydraulic filter element or clean if necessary |
| Hydraulic pump is faulty - Check hydraulic pump flow and replace pump if necessary |
| Main relief valve failure or incorrect setting - Replace or set up the relief valve |
| Damaged or incorrect adjusted hydraulic spool valve - Set properly or replace |
| Hydraulic cylinder is broken - Inspect cylinder components for wear or damage and change if required |
| Broken or disconnected suction line - Connect or replace |
| 3-point hitch drops slowly or won't drop |
| Defective or not adjusted hydraulic spool valve - Change or adjust properly |
| Broken hydraulic cylinder - Check cylinder components for wear or damage and change if necessary |
| Worn hitch rock shaft - Change the shaft |
| Mechanical parts of the hitch are damaged - Replace faulty or worn hitch parts |
| Jerky lifting or lowering of 3-point hitch |
| Air enters in hydraulic system - Check the pump seals, suction pipe, and fittings |
| Hydraulic oil contamination - Change the oil |
| Defective hydraulic pump - Flow-rate hydraulic pump and replace pump if necessary |
| Hydraulic spool valve is defective or set improper - Adjust properly or change |
| Hydraulic cylinder is broken - Inspect cylinder components for wear or damage and change if required |
| Steering System Troubleshooting |
| Steering is difficult |
| Steering column is damaged or improperly mounted - Replace the steering column or mount it properly |
| Air enters in steering system - Air-bleed steering system |
| Incorrect toe-in - Check toe-in and correct |
| Incorrect tire pressure - Inflate the tires correctly |
| Steering pump is worn - Steering pump needs to be replaced or repaired |
| Hydrostatic steering unit is damaged or worn - Replace or repair steering unit as required |
| Steering oil level is low - Fill up steering oil to required level |
| Steering system oil leakage - Tighten the steering pipe and hose joints |
| Excessive free play of steering wheel |
| Steering column shaft or coupling is worn out - Change faulty component |
| Hydrostatic steering unit is worn or defective - Repair or change the steering unit |
| Steering pump stopped working - Repair or replace steering pump |
| Steering tie-rod ends or linkage are worn - Replace failed part |
| Tractor is pulling to right or left |
| Incorrect tire pressure - Inflate the tires correctly |
| Not adjusted toe-in - Check toe-in and correct |
| Worn or faulty steering linkage or tie-rod ends - Change damaged part |
| Damaged or worn hydrostatic steering unit - Inspect and replace as required |
| Steering cylinder malfunction - Change or repair steering cylinder |
| Incorrectly adjusted or worn front hub bearings - Change or adjust the bearings properly |
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| Farm Tractors Technical Specifications |
