John Deere 328D Skid Steer Troubleshooting

The John Deere 328D skid steer loader driveline system components: a 186 cu.in (3.L) JD PowerTech E 5030HT 5-cylinder turbocharged diesel engine with a rated power of 80 hp (59.6 kW), and 2-speed hydro transmission. The hydraulic system has a standard pump with a rated capacity of 21 gal/min (80 l/min). The system relief pressure is 3450 psi (238 bar). The John Deere 328D is equipped with vertical-lift loader boom, 100 HD drive chains, and 14x17.5 tires. The skid steer loader has a maximum lift height of 127.1" (3230 mm) to hinge pin and dump height of 101.2" (2570 mm). The rated operating capacity is 2800 lbs (1270 kg), and tipping load is 5600 lbs (2540 kg).

Engine Troubleshooting

Engine hard to start or will not start

Air in the fuel system - Air bleeding.
Fuel filter plugged - Replace the filter element.
Dirty or damaged injection nozzles - Replace injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
The valve clearance is not adjusted - Have it adjusted.
Faulty fuel injection pump - Rebuild or install a new injection pump.

Diesel starts but stalls suddenly

Clogged air cleaner - Clean or change.
Fuel filter plugging - Change the filter element.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
Fuel injection pump failure - Replace or repair injection pump.

Engine stalls while running

Engine is not preheated - Warm up to required temperature.
Fuel filter plugging - Replace filter element.
Air in fuel tank - Bleed fuel tank.
Dirty or faulty injection nozzles - Install a new kit of correctly balanced nozzles.
Improper fuel injection timing - Adjust according to specifications.

Engine stops when idle

Improperly adjusted low idle speed - Need to adjust idle speed.
Fuel injection pump failure - Repair or install a new fuel pump.
Fuel injectors are dirty or defective - Clean fuel injectors or change it.
Improper valve clearance - Correct valve clearance.

Loss of engine power

Clogged air cleaner - Clean or replace element.
Dirty or damaged injection nozzles - Check and replace nozzles if required.
Fuel injection pressure is wrong - Check the fuel injection pressure and adjust if necessary.
The valve clearance is not adjusted - Correct valve clearance needs to be set.
Low idle speed setting is incorrect - Normalize low idle speed.
Dirty fuel hoses or lines - Clean fuel lines and hoses.
Cylinder head gasket is damaged - Gasket should be replaced.
Piston rings are defective or leaking - Replace the piston rings as required.

Engine overheats

Insufficient coolant - The cooling system needs to be refilled and checked for faults.
Low engine oil level - Check and refill engine oil.
Dirty radiator core or defective radiator cap - Clean radiator or change cap.
Damaged or worn fan belt - Install new fan belt.
Diesel engine overloaded - Load reducing required.

Oil pressure is low

Low oil level - Check oil level and add oil as required.
Oil filter is clogged - Clean or replace engine oil filter element.
Incorrect oil viscosity - Use oil of proper viscosity.
Incorrect crankshaft bearing oil clearance - Bearings need to be reinstalled.
Oil pump failure - Inspect and change as required.

Abnormal engine noise or knocking

Low engine oil level - Checking oil level and add if necessary.
Coolant temperature is low - Warm up to required temperature.
Fuel injection pump timing is not adjusted - Set the fuel pump timing correctly.
Incorrect low idle setting - Adjust the low idle speed.
Fuel injectors are dirty or defective - Test and replace fuel injectors if necessary.
Connecting rod is defective or not aligned - Alignment procedure or replacement is required.
Pistons are worn or scored - Replace the pistons.

Drive System Troubleshooting

Machine will not move forward or backward

Hydraulic oil is insufficient - Fill the system to proper hydraulic oil level.
Faulty drive chain - Inspect drive chain and replace faulty components.
Input drive shaft is not working properly - Repair or install a new drive shaft.
Defective relief valve - Rebuild or install a new relief valve.
Suction line or hydraulic filter is dirty - Change hydraulic filter or service suction line.
Damaged or worn hand or foot controls - Repair or replace.
Defective drive pump or motor - Check and repair if required.

Reduced power

Hydraulic oil filter is plugged - Change hydraulic filter.
Relief valve is opened or defective - Change or close relief valve.
Transmission components are damaged or faulty - Check and replace faulty components.
Stuck input drive shaft - Repair or replace faulty drive shaft.
Hydraulic system is leaking air - Air bleeding is required.

Drive system keeps overheating

Low hydraulic oil level - Check and refill the hydraulic oil.
Hydraulic fluid filter is dirty - Change or clean hydraulic filter.
Relief valve is damaged or worn - Service or change relief valve.
Drive pump or hydraulic motor malfunction - Check and repair if required.
Clogged hydraulic oil cooler - Clean the cooling fins.
Drive system overload - Load should be reduced.

Excessive noise

Improper oil viscosity - Use oil of proper viscosity.
Hydraulic system is leaking air - Need to bleed air.
Drive pump or hydraulic motor malfunction - Repair or replace faulty component.
Defective or worn mechanical components of drive system - Check the components for defect or damage and change if necessary.

Hydraulics Troubleshooting

Hydraulic system overheating

Hydraulic pressure is incorrect - Set pressure correctly.
Main relief valve improper adjustment or failure - Set up or change the relief valve.
Dirty hydraulic oil - The oil must be changed.
Hydraulic fluid level is low - Need to add fluid.
Hydraulic pump is defective - Repair or install new hydraulic pump.

Boom won't lower or raise

Lift controls are faulty - Repair or replace.
Hydraulic pump malfunction - Replace or repair pump if necessary.
Hydraulic control valve failure - Install a new hydraulic valve or repair it.
Defective hydraulic cylinder - Change or repair lift cylinder.
Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.

Bucket is not working

Damaged bucket controls - Change or repair.
Hydraulic pump malfunction - Repair or replace pump if necessary.
Faulty hydraulic control valve - Change or repair hydraulic valve.
Damaged bucket cylinder - Repair or change cylinder.
Hydraulic oil is insufficient - Need to add oil.

Boom or bucket functions slowly

Hydraulic pump is worn - Check the pump performance and replace it if required.
Hydraulic cylinder oil leakage - Repair leak by replacing the seals.
Hydraulic fluid is insufficient - Checking hydraulic fluid level and add if necessary.
Worn or unadjusted hydraulic control valve - Adjust correctly or repair.
Hydraulic system loosing pressure - Adjust pressure correctly.

Bucket or boom movements are jerky

Air trapped in hydraulic system - Air bleeding is required.
Hydraulic oil filter element clogging - Service or change the hydraulic filter.
Hydraulic oil is dirty - Change hydraulic oil.
Cylinder rod or tube is scratched - Replace defective component.

Hydraulic pump is noisy

Hydraulic system leaking or not enough oil - Refill hydraulic oil or repair leaks in system.
Dirty hydraulic filter - Clean or replace the filter.
Suction line is dirty - Service the suction line.
Air trapped in hydraulic pump - Bleed air from hydraulics.
Worn pump components - Replace or rebuild the pump.

Electrical Troubleshooting

Battery will not charge

Electrical wire connections are loose or corroded - Clean or tighten wiring connections.
Battery terminal clamps are faulty - Install new terminal clamps.
Faulty cell in battery - Battery change required.
Loose or defective belt - Need to adjust belt tension or replace belt.

Starter cranks slowly

Low battery voltage - Battery is drained, charge it.
Battery does not hold charge - Service charging system or replace battery.
Bad battery terminals or disconnected wiring - Check cable connections and change or clean terminals.

Starter does not work

Battery is discharged or defective - Battery needs to be recharged or replaced.
Wire harness is disconnected or incorrectly connected - Check wire harness and connect as required.
Low battery capacity - Charge the battery.
Damaged starter motor - Replace or repair starter.