Home / Farm Tractors / Kubota Tractors / Kubota B7200

Kubota B7200 Troubleshooting

The Kubota B7200 compact utility tractor was manufactured between 1983 and 1990. This model was designed in 2 versions: B7200E (2WD) and B7200D (4WD). The Kubota B7200 powertrain system components: a 56.6 cu.in (0.9L) Kubota D950 4-cycle vertical three-cylinder naturally aspirated liquid-cooled diesel engine with a rated power of 17 hp (12.7 kW), and unsynchronized transmission with 6 forward and 2 reverse gears.

Max forward speed - 8 mph (12.8 kph), max reverse speed - 4 mph (6.4 kph). The open center hydraulic system includes a gear pump with a flow rate of 4 gallons per minute (15.1 liters per minute). The hydraulic system pressure is 113 bar (1640 psi). The 2-wheel drive models are equipped with 5.00x10 (AG) or 18x9.50-8 (Turf) front tires and 8.00x16 (AG) or 29x12.00-15 (Turf) rear tires. The 6.00x12 (AG) or 20x8.00-10 (Turf) front tires and 8.00x16 (AG) or 31x13.50-15 (Turf) rear tires are used for tractors with 4-wheel drive. The wheel base is 55.1" (1390 mm).

The Kubota B7200 is compatible with the following attachments: a 60" mid-mount 3-blade Kubota RC60-72 mower deck with cutting height of 1.5-4.0 in (38-102 mm), 48" rear-mount Kubota B3538 finish mower, 51" front-mount dual-stage Kubota B2551 snowblower with hydraulic lift, Kubota B1630C front-end loader with lift capacity to full height of 510 lbs (231 kg), or Kubota B1640A front-end loader with lift capacity to full height of 510 lbs (231 kg).

Engine Troubleshooting
Engine will not start or hard to start
Clogged fuel filter element - Replace the filter element
Fuel shut-off valve closed - Open the fuel shut-off valve
There is air in the fuel system - Bleed the system
Dirty or faulty injectors - Inspect fuel injectors and replace if necessary
Fuel injection pump damage - Rebuild or change fuel pump
Poor cylinder compression - Check cylinder block and replace defective parts
Engine stops running unexpectedly
Engine is not fully warmed up - Normalize the temperature by warming up the engine
Air in fuel pipes - Bleed fuel pipes
Uneven fuel injections - Repair or adjustment
Fuel filter is dirty - Change filter element
Fuel injectors are damaged or dirty - Test fuel injectors and change if necessary
Engine starts but immediately shuts off
Incorrect setting of fuel injection pump timing - Check the fuel injection pump timing setting
Dirty fuel filter element - Change filter element
Clogged or damaged injector nozzles - Test injector nozzles and replace as required
Fuel injection pump damage - Rebuild or change fuel pump
Air cleaner is dirty - Replace or clean the air cleaner element
Engine stops while idling
Incorrect low idle setting - Test and adjust
Fuel injection pump is not working correctly - Change pump or rebuild it
Clogged or damaged injector nozzles - Service or replace injector nozzles
Valve out of adjustment - Adjust valve clearance
Engine overheating
Insufficient coolant fluid - Fill the radiator to the required level. Inspect the system for leaks
Cooling system parts are failed or system is clogged - Replace faulty parts or flush the cooling system
Engine oil level is low - Need to add engine oil
Broken fan belt or incorrect belt tension - Adjust as required or change belt
Thermostat failure - Thermostat needs to be replaced
Engine power is reduced
Dirty or damaged injectors - Service or change fuel injectors
Improper fuel injection pressure - Correct the pressure settings
Air filter clogging - Replace or clean the air filter element
Oil filter is dirty - Replace or clean engine oil filter element
Engine overload - Reduce the load or use a lower gear
The valve clearance is incorrect - Have it adjusted
Incorrect low idle setting - Test and adjust
Fuel pipes or hoses are clogged - Service fuel hoses and pipes
Poor engine compression: Valves are broken or leaking - Change the valves
Engine knocking sound or abnormal noise
Incorrectly set fuel injection pump timing - Correct injection timing
Fuel injector nozzles are damaged or dirty - Install new set of properly balanced nozzles
Engine oil level is low - Check and refill engine oil
Engine is cold - Warm up engine as required
Worn crankshaft or main bearings - Repair or replace defective parts
Piston rings are defective or broken - Piston rings need to be replaced
Loose flywheel screws - Check the flywheel screws and tighten as required
Excessive oil consumption
Oil leaking: Gaskets or seals can be faulty - New components need to be installed
Incorrect oil viscosity - Fill up with the proper oil viscosity
Piston rings are defective or worn - Install new piston rings
Worn valve stems and valve guides - Valves must be replaced
Worn cylinder liners or pistons - Check liners and pistons, install new components as required

Electrical System Troubleshooting
Battery cannot be charged
Dead cell in battery - Battery change required
Bad battery electrical wire harness - Check wires for malfunctions, repair or replace
Loose or corroded battery terminals and cables - Tighten or clean terminals and cables
Improper belt tension adjustment or damaged belt - Replace belt or correctly adjust belt tension
Starter motor turns slow
Low battery voltage - Recharge the battery
Battery won’t hold charge - Service charging system or install new battery
Battery electrical wire harness damage - Check battery wires for damage, replace or change
Corroded or loose terminals and cables - Cables and terminals must be tightened or cleaned
Starter does not work
Battery capacity is low - Battery needs to be recharged
Discharged or worn battery - Replace or charge as required
Starter motor failing - Starter should be replaced
Improperly connected or disconnected wiring harness - Inspect wiring harness and connect properly

Transmission Troubleshooting
Difficult to shift gears
Clutch is not adjusted or faulty - Change or adjust clutch
Gear shift linkage is stuck or worn - Service or change the shift linkage
Worn or damaged shift forks - Shift forks need to be changed
Defective gearshift mechanism - Replace defective components
Transmission fluid pressure is insufficient
Not enough fluid in transmission - Fill the transmission housing with fluid
Transmission oil filter clogging (if fitted) - Replace or clean transmission oil filter
Faulty relief valve - Replace relief valve
Excessive transmission noise
Bearings are worn or damaged - Bearings need to be replaced
Low transmission fluid level - Fill system with correct transmission fluid level
Contaminated transmission fluid - Transmission fluid must be changed
Gears are worn or backlash is improper - Replace gears or set backlash correctly
Shift forks are damaged or worn - Install new shift forks
External oil leaks
Gaskets or seals are broken - Install new seal or gaskets
Transmission case is cracked - Replace case or transmission assembly

Hydraulics Troubleshooting
Hydraulic system overheating
Hydraulic system pressure is incorrect - Hydraulic pressure needs to be set correctly
Defective or misadjusted main relief valve - Adjust or change relief valve
Dirty hydraulic fluid - The fluid must be changed
Air enters in hydraulic system - Check the pump seals, suction line, and fittings
Insufficient hydraulic fluid pressure
Not enough hydraulic fluid in the system - Check and refill the hydraulic fluid
Hydraulic fluid filter element is dirty - Change hydraulic filter element or clean if necessary
Hydraulic pump is faulty - Test pump performance and replace pump if necessary
Hydraulic spool valve block is not set properly or defective - Change or set correctly
Faulty hydraulic cylinder - Check cylinder components for wear or damage and change if necessary
Hydraulic pipes are leaking - Inspect hydraulic system for leaks and repair it
3-point hitch lifts slowly or won't lift
Not enough hydraulic fluid in the system - Need to add fluid
Cold hydraulic oil - Warm up the oil
Hydraulic oil filter element is dirty - Install a new hydraulic filter element
Faulty hydraulic oil pump - Check the pump performance and replace it if required
Unadjusted or defective main relief valve - Replace or set up the relief valve
Defective or incorrect setting hydraulic control valve block - Adjust properly or replace
Hydraulic cylinder is broken - Check cylinder parts for wear or damage and replace if necessary
Damaged or loose suction line - Tighten or change
3-point hitch lowers slowly or won't lower
Hydraulic spool valve block is defective or set improper - Replace or set correctly
Hydraulic cylinder malfunction - Check cylinder parts for wear or damage and replace if necessary
Damaged hitch rock shaft - Change the shaft
The hitch is defective if there is internal mechanical damage - Replace damaged or worn hitch components
Three-point hitch raises or lowers not smoothly
Air leaks in hydraulic system - Inspect the suction pipe, fittings, and pump seals
Dirty hydraulic oil - The oil must be changed
Defective hydraulic pump - Check the pump capacity and replace pump if required
Defective or not adjusted hydraulic spool valve - Change or adjust properly
Defective hydraulic cylinder - Inspect cylinder components for wear or damage and change if required

Steering System Troubleshooting
Hard Steering
Steering knuckle or steering column is stuck - Inspect steering column and knuckle, replace worn parts
Steering gearbox components are worn - Replace defective components of steering gearbox
Faulty drag link or tie rod - Replace or repair
Insufficient lubrication in steering box - Need to lubricate the gearbox
Not adjusted toe-in alignment - Check and adjust toe-in
Tires are not correctly inflated - Inflate tires as necessary
Excessive steering wheel free play
Steering column bearing or shaft is worn - Change faulty parts
Steering linkage assembly is worn or loose - Repair or replace steering linkage
Worn steering gearbox bearings - Replace the bearings
Front wheel hub bearings or steering knuckles are worn - Change hub bearings or knuckles
Damaged or worn steering tie-rod ends - Change faulty part
Tractor pulls to right or left
Worn or loose steering linkage assembly - Repair or replace steering linkage
Defective steering knuckle bushing - Replace knuckle bushing
Uneven tire pressure - Inflate the tires properly
Toe-in adjustment is incorrect - Adjust toe-in correctly



Farm Tractors Technical Specifications
JD 1026R JD 3650 JD 6400 JD 7810
FORD 1320 FORD 2810 FORD 3930 FORD 5600
MF 250 MF 690 MF 3060 MF 6180
NH TC48DA NH M100 NH T7550 NH 8560
CASE IH 495 CASE IH 1255XL CASE IH 2140 CASE IH 2294