Home / Farm Tractors / Kubota Tractors / Kubota B8200HST

Kubota B8200HST Troubleshooting

The Kubota B8200HST compact utility tractor was manufactured between 1983 and 1990. This model was designed in two versions: B8200HST-E (2WD) and B8200HST-D (4WD). The Kubota B8200HST driveline includes a 56.6 cu.in (0.93L) Kubota D950-A-DT vertical 3-cylinder indirect injection naturally aspirated liquid-cooled diesel engine and 3-range hydrostatic transmission with infinite forward and reverse gears.

The engine has a cylinder bore of 2.97" (75 mm), piston stroke of 2.76" (70 mm), maximum power of 21.5 hp (15.9 kW), and 55.6 Nm (41.2 lb-ft) of peak torque at 1800 rpm. The maximum forward speed - 11.7 mph (18.9 km/h), max reverse speed - 9.4 mph (15.1 km/h). The open center hydraulic system used a gear pump with a flow of 6.5 gal/min (24.6 l/min). The main relief pressure is 118 bar (1715 psi).

The 2-wheel drive models are equipped with 4.00x12 front tyres and 8.30x24 rear tyres. The 6.50x10 (AG) or 24x8.50-12 (Turf) front tyres and 12.4x16 (AG) or 13.6x16 (Turf) rear tyres fit 4-wheel drive tractors. The wheel base is 60.4" (1535 mm). The Kubota B8200HST is compatible with the following attachments: a 60" mid-mount 3-blade mower deck with cutting height of 1.5-4.0" (38-102 mm), 51" front-mount two-stage snowblower with hydraulic lift system, Kubota BF300 front-end loader with lift capacity to full height of 705 lbs (320 kg), and Kubota BK4520 backhoe with maximum digging depth of 78" (1980 mm).

Engine Troubleshooting
Diesel won't start or hard to start
Fuel filter is clogged - Clean or change the filter
Closed fuel cock - Open fuel on-off cock to inject fuel
Air in fuel lines - Bleed fuel lines
Dirty or faulty injectors - Clean or replace fuel injectors
Fuel injection pump damage - Repair or install a new fuel pump
Bad cylinder compression - Check cylinder block and replace defective parts
Diesel shuts off during operation
Coolant temperature is low - Warm up the engine
Fuel-line is leaking air - Retighten clamps, replace defective pipes
Fuel injection failed - Use correct settings
Fuel filter clogging - Change filter element
Clogged fuel injectors - Test fuel injectors and change if necessary
Diesel starts but then stalls
Timing of fuel injection pump is not adjusted - Fuel injection pump timing adjustment needs to be corrected
Fuel filter is dirty - Replace the filter element
Fuel injector nozzles are dirty or defective - Change or clean injector nozzles
Fuel injection pump is not working correctly - Replacement or repair required
Clogged air cleaner element - Change or service air cleaner element
Engine stops at low idle speed
Low idle speed setting is not correct - Adjust as required
Fuel injection pump malfunctioning - Repair or replace injection pump
Clogged or damaged injector nozzles - Change or clean injector nozzles
The valve clearance is not adjusted - Adjust to proper valve clearance
Engine overheated
Lack of coolant in cooling system - Fill the cooling system. Check the components of cooling system
Cooling system parts are failed or system is clogged - Replace faulty parts or service cooling system
Engine oil level low - Need to add engine oil
Fan belt tension is improper or belt is damaged - Adjust belt tension correctly or replace it
Defective thermostat - Replace the thermostat
Loss of engine power
Clogged or damaged injectors - Service or change fuel injectors
Fuel injection pressure is incorrect - Repair or replace injection pump
Dirty air filter - Service or change air filter
Oil filter element clogging - Service or change engine oil filter element
Engine is under excessive load - Load reducing is recommended
Valve clearance is wrong - Check and adjust
Low idle speed set incorrectly - Adjust low idle speed
Dirty fuel hoses or pipes - Service fuel hoses and pipes
Loss of compression: Inlet or outlet valves are defective - Install new valves
Engine noise or knocking
Fuel injection pump timing is incorrect - Check and correct adjustments
Fuel injector nozzles are faulty - Service or replace injector nozzles
Lack of engine oil - Add oil to the engine crankcase
Coolant temperature is low - Warm up engine as required
Worn crankshaft or main bearings - Change defective components as required
Broken or worn piston rings - Piston rings replacement required
Loose flywheel screws - Check the flywheel screws and tighten as required
Excessive engine oil consumption
External oil leaks: Worn gaskets or seals - Worn parts need to be replaced
Crankcase oil too light - Fill up with the correct oil viscosity
Stuck or defective piston rings - Change piston rings
Valve guides and stems are worn - Valves replacement required
Cylinder liners or pistons are scuffed - Inspect pistons and liners, replace as required

Electrical System Troubleshooting
Battery won’t charge
Battery faulty cell - Use a new battery
Battery wiring harness failure - Inspect electrical cables for defects, repair or replace
Loose or corroded battery cables and terminals - Tighten or clean terminals and cables
Worn belt or improperly adjusted belt tension - Adjust belt tension correctly or replace belt
Starter motor cranks slow
Battery capacity is low - Charge the battery
Battery drains quickly - Service battery or change it
Bad battery electrical wire harness - Check wires for malfunctions, repair or replace
Loose or corroded terminals and cables - Tighten or service terminals and cables
Starter motor is not working
Low battery capacity - Charge the battery
Discharged or defective battery - Recharge or change battery
Faulty starter motor - Replace or repair starter
Cables harness is improperly connected or disconnected - Inspect cables harness and reconnect it properly

Hydrostatic Transmission Troubleshooting
Hydrostatic transmission noise
Transmission fluid level is insufficient or fluid is contaminated - Fill the transmission with fresh fluid or add fluid to the correct level
Worn or misadjusted speed control rod linkage - Adjust or change rod linkage
Relief valve is faulty - Replace relief valve
Transmission overload - Reduce the load is required
Transmission parts are worm or defective - Change or repair damaged parts
Transmission fluid overheats
Low transmission fluid level - Fill the transmission housing with fluid
Transmission fluid filter is dirty - Change or clean the transmission fluid filter
Cooling components are clogged or damaged - Check all cooling components and change or repair if required
Transmission overloaded - Reduce loading
Low power
Low transmission oil level - Checking transmission oil level and add if necessary
Low charge pressure - Test charge pressure
Defective or worn relief valve - Replace relief valve as required
Transmission oil leakage
Worn gaskets or seals - Install new components
Transmission housing internal pressure is excessive - Change or repair damaged parts
Plugged transmission fluid drain pipe - Service or change drain pipe

Hydraulics Troubleshooting
Hydraulic system overheated
The system pressure has not been corrected - Make the correct settings
Unadjusted or defective main relief valve - Adjust the valve or replace if necessary
Hydraulic fluid is dirty - Hydraulic fluid change required
Air leaks in hydraulic system - Check the suction line, pump seals, and fittings
Low hydraulic oil pressure
Not enough hydraulic oil in the system - Fill up the hydraulic oil
Hydraulic fluid filter clogging - Clean the hydraulic filter or install new filter element
Hydraulic pump malfunction - Check hydraulic pump flow and replace pump if necessary
Defective or incorrect setting hydraulic spool valve block - Adjust properly or replace
Hydraulic cylinder is broken - Inspect cylinder components for damage or wear and change if required
Leakage in hydraulic pipes - Detect leaks in the system and fix it
3-point hitch lifts slowly or won't lift
Not enough hydraulic fluid in the system - Check and refill the hydraulic fluid
Hydraulic fluid is too cold - Allow fluid to warm
Hydraulic oil filter clogging - Clean the hydraulic filter element or replace if necessary
Defective hydraulic pump - Check pump capacity and change if necessary
Main relief valve is damaged or adjusted improperly - Adjust or change relief valve
Damaged or incorrect adjusted hydraulic control valve - Adjust properly or replace
Hydraulic cylinder is not working - Inspect cylinder components for wear or damage and change if required
Broken or loose suction line - Retighten or change
3-point hitch drops slowly or won't drop
Hydraulic spool valve block is defective or set improper - Replace or adjust properly
Hydraulic cylinder is faulty - Check cylinder components for wear or damage and change if necessary
Lift arm shaft is worn - Change the shaft
Internal mechanical failure of the hitch - Replace defective or worn hitch parts
3-point hitch lifting or lowering is jerky
Aeration in hydraulic system - Check the suction pipe, fittings, and pump seals
Hydraulic fluid is dirty - Hydraulic fluid change required
Faulty hydraulic oil pump - Check pump flow and change pump if necessary
Hydraulic control valve is defective or set improper - Change or adjust properly
Hydraulic cylinder is not working - Check cylinder parts for damage or wear and replace if necessary

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