Case TV370B Track Loader Troubleshooting

The Case TV370B compact track loader is powered by 207 cu.in (3.4L) FPT F5H FL463 vertical in-line 4-cylinder turbocharged diesel engine with a rated power of 74 hp (55 kW) at 2500 rpm. The Case TV370B is equipped with a two-speed transmission, vertical-lift loader boom, dozer-style undercarriage, and 17.7" (450 mm) rubber tracks with steel inserts. The hydraulic system has a pump with fluid flow rate of 24.2 gpm (91.5 lpm). The hydraulic pressure is 3050 psi (210 bar). The track loader has a rated operating capacity of 2590 lbs (1178 kg) and tipping load of 7400 lbs (3364 kg). The lift height is 131.6"" (3340 mm) to hinge pin, and dump height is 105.1" (2670 mm).

Engine Troubleshooting

Engine difficult to start or doesn't start

Air in the fuel system - Air bleeding.
Fuel filter plugged - Replace the filter element.
Fuel injection nozzles are faulty or clogged - Check and replace nozzles if required.
Water or dirt in fuel system - Drain, flush, and service the system.
Valve clearance is out of adjustment - Adjustment procedure required.
Fuel injection pump is not working correctly - Replace or repair injection pump.

Engine stalls after starting

Dirty air filter - Install new air filter element.
Fuel filter element is clogged - Clean or replace the filter.
Fuel injection pump is leaking - Repair any leaks.
Dirty or defective injectors - Test and replace fuel injectors if necessary.
Fuel injection pump is broken - Install a new fuel pump or repair.

Engine stalls while running

Engine is not fully warmed up - Warm up the engine.
Fuel filter element is clogged - Clean or change the filter.
Air in the fuel pipes - Bleed the fuel pipes.
Clogged or burnt injection nozzle - Install a new kit of correctly balanced nozzles.
Wrong setting of fuel injection pump timing - Adjust as recommended.

Engine stops at idle

Low idle speed setting is not correct - Adjust low idling as recommended.
Fuel injection pump malfunction - Change or repair the pump.
Defective fuel injectors - Clean or replace fuel injectors.
Incorrect valve clearance - Need to adjust valve clearance.

Diesel engine is losing power

Dirty air filter - Clean or change.
Fuel injection nozzles fault - Check injection nozzles and replace if required.
Fuel injection pressure is wrong - Correct the pressure settings.
Valve out of adjustment - Adjustment procedure required.
Low idle speed adjustment is incorrect - Adjust low idling as recommended.
Fuel hoses or lines are dirty - Clean fuel lines and hoses.
Cylinder head gasket is damaged - Replace the gasket as required.
Leaking or defective piston rings - Install new piston rings.

Engine overheating

Not enough coolant - Top up coolant fluid and check system for leaks.
Lack of engine oil - Checking oil level and add if necessary.
Clogged radiator core or leaking radiator cap - Clean radiator or install new cap.
Loose or damaged fan belt - Install new fan belt.
Engine is overloaded - Load reducing is recommended.

Insufficient oil pressure

Low crankcase oil level - Checking oil level and add if necessary.
Plugged engine oil filter - Service or replace engine oil filter.
Incorrect oil viscosity - Use oil of proper viscosity.
Main bearing oil clearance is excessive - Bearings need to be reinstalled.
Oil pump failure - Check and replace if necessary.

Engine knocks or noises

Lack of engine oil - Check and refill engine oil.
Engine is cold - Warm up to required temperature.
Fuel injection pump timing is not adjusted - Use the correct fuel injection pump timing adjustment.
Incorrectly set low idle speed - Adjust the low idle speed.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
Faulty or misaligned connecting rod - Connecting rod needs to be replaced or aligned.
Pistons are scored or worn - Have pistons replaced.

Drive System Troubleshooting

Machine is not moving forward or backward

Hydraulic fluid level low - Check and refill the hydraulic fluid.
Undercarriage tracks are blocked or damaged - Repair or remove blockage.
Relief valve malfunction - Repair or replace.
Hydraulic filter or suction line is dirty - Check, clean, or change if necessary.
Defective hand or foot controls - Check and repair as required.
Worn drive motor or pump - Replace or repair faulty component.

Machine is not moving straight or moving is jerky

Jammed or damaged undercarriage tracks - Remove jamming or repair tracks.
Tracks are improperly tensioned or faulty - Adjust track tension or repair tracks.
Debris, dirt, or foreign objects stuck in undercarriage track frame - Clean undercarriage track frame, remove foreign objects and debris.

Lack of power

Plugged hydraulic oil filter - Replace hydraulic filter.
Relief valve is defective or open - Close or change relief valve.
Worn or defective transmission parts - Check and change faulty components.
Stuck input drive shaft - Repair or install a new drive shaft.
Air leaks in hydraulic system - Bleed hydraulic system.

Drive system overheating

Low hydraulic oil level - Fill the system to proper hydraulic oil level.
Hydraulic fluid filter is clogged - Replace or service hydraulic filter.
Stuck relief valve - Repair or replace.
Drive pump or hydraulic motor malfunction - Repair or replace faulty component.
Clogged hydraulic oil cooler - Cooling fins need to be cleaned.
Overloaded drive system - Load needs to be reduced.

Drive system is noisy

Oil viscosity is incorrect - Use correct oil viscosity.
Air in the hydraulic system - Air bleeding is required.
Defective drive pump or hydraulic motor - Repair or replace faulty component.
Worn or defective mechanical parts of drive system - Inspect the components for defect or damage and repair as needed.

Hydraulics Troubleshooting

Hydraulic system overheating

Incorrect hydraulic pressure setting - Set pressure correctly.
Main relief valve malfunction or improper adjustment - Adjust or change relief valve.
Hydraulic fluid is contaminated - Hydraulic fluid change required.
Hydraulic fluid level is low - Fill the hydraulic system with oil.
Hydraulic pump is worn - Install new pump or repair it.

Lift arm can't drop or lift

Lift controls failure - Repair or replace.
Hydraulic pump not working - Replace or repair pump if necessary.
Hydraulic control valve is defective - Repair or change hydraulic valve.
Hydraulic cylinder is broken - Replace or repair boom cylinder.
Hydraulic oil is insufficient - Check and refill the hydraulic oil.

Bucket won't move

Defective bucket controls - Change or repair.
Hydraulic pump not working - Install new pump or repair it.
Hydraulic control valve failure - Change or repair hydraulic valve.
Hydraulic bucket cylinder is defective - Change or repair cylinder.
Hydraulic oil is insufficient - Fill the system to proper hydraulic oil level.

Slow boom or bucket operation

Faulty hydraulic oil pump - Check hydraulic pump flow and replace pump if necessary.
Leaking hydraulic cylinder - Install new cylinder seals.
Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.
Hydraulic control valve is faulty or out of adjustment - Set correctly or repair.
Hydraulic pressure has dropped - Adjust pressure correctly.

Bucket or boom is jerky

Air in hydraulic system - Bleed air from system.
Hydraulic oil filter element is clogged - Clean or change the filter.
Hydraulic oil is contaminated - Change hydraulic oil.
Scored cylinder tube or rod - Replace damaged component.

Hydraulic pump makes excessive noise

Insufficient oil level or leaking hydraulic system - Add hydraulic oil or correct system leaks.
Dirty hydraulic filter - Clean or install new filter.
Suction line clogging - Need to service the suction line.
Pump is sucking air - Air bleeding is required.
Pump components are faulty - Replace or rebuild the pump.

Electrical Troubleshooting

Battery will not charge

Loose or corroded cable connections - Clean or tighten connections.
Battery terminal clamps are defective - Terminal clamps should be changed.
Dead cell in battery - Use a new battery.
Belt is loose or defective - Adjust belt tension or change the belt.

Starter motor cranks slow

Low battery output - Charge the battery.
Battery won’t hold charge - Battery needs to be serviced or replaced.
Wires are disconnected or battery terminals are corroded - Check wiring and clean or replace terminals.

Starter doesn't crank

Battery is discharged or worn - Change or recharge battery.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Low battery voltage - Battery is drained, charge it.
Starter motor is faulty - Starter needs to be changed.