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ASV RC-50 Troubleshooting
The
ASV Posi-Track RC-50 compact track loader driveline system components: a 135
cu.in (2.2L) Perkins 404C-22 4-cycle 4-cylinder indirect injection diesel engine
with a rated power of 50 hp (37.3 kW), and 1-speed hydrostatic transmission. The
hydraulic system has a pump with a rated flow of 16.3 gpm (61.7 lpm). The system
pressure is 3000 psi (207 bar). The ASV RC50 is equipped with a radial-lift
loader boom, axial-piston drive pumps, and suspended undercarriage with 15" (380
mm) rubber tracks. The loader has a max lift height of 115.5" (2920 mm) to hinge
pin. The rated operating capacity is 1330 lbs (603 kg), and tipping load is 3800
lbs (1725 kg).
| Engine Troubleshooting |
Engine difficult to start or will not start
Air in fuel tank - Bleed fuel tank.
Fuel filter element clogging - Change filter element.
Burnt or defective injection nozzle - Check and replace nozzles if required.
Water or dirt in fuel system - Drain, flush, and service the system.
Excessive valve clearance - Adjust valve clearance.
Faulty fuel injection pump - Repair or install new pump.
Engine stalls after starting
Air cleaner is dirty - Clean or replace element.
Fuel filter element clogging - Replace filter element.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Fuel injectors are dirty or defective - Change or clean fuel injectors.
Fuel injection pump is defective - Change pump or rebuild it.
Engine stops suddenly during operation
Engine is cold - Warm up the engine as required.
Clogged fuel filter - Install new filter element.
Air in the fuel lines - Bleed the fuel lines.
Clogged injection nozzle - Test injection nozzles and change if necessary.
Fuel injection pump timing is not adjusted - Adjust fuel injection pump as required.
Engine stops when idle
Low idle speed adjustment is incorrect - Adjust low idling as recommended.
Fuel injection pump is faulty - Install a new fuel pump or repair.
Defective fuel injectors - Inspect fuel injectors and change as required.
Valve clearance is wrong - Adjust valve clearance.
Engine power is insufficient
Dirty air cleaner - Install new air cleaner element.
Clogged or defective injection nozzles - Check injection nozzles and replace if required.
Fuel injection pressure is wrong - Adjust to proper pressure.
Excessive valve clearance - Adjustment procedure required.
Too low idle RPM - Adjustment required.
Fuel hoses or lines are clogged - Clean fuel lines and hoses.
Damaged cylinder-head gasket - Gasket should be replaced.
Defective or worn piston rings - Change piston rings.
Engine overheated
Engine coolant is insufficient - Add coolant fluid to cooling system and also check it for leaks.
Engine oil level low - Check oil level and add oil as required.
Dirty radiator core or defective radiator cap - Change cap or clean radiator.
Loose or damaged fan belt - Replace the fan belt.
Diesel engine is overloaded - Load reducing required.
Oil pressure is low
Engine oil level low - Add oil to the engine crankcase.
Oil filter is dirty - Replace or clean engine oil filter element.
Wrong oil viscosity - Use oil of correct viscosity.
Incorrect crankshaft bearing oil clearance - Replace bearings.
Oil pump is defective - Repair or change.
Engine knocking sound or abnormal noise
Not enough engine oil - Check oil level and add oil as required.
Engine is not preheated - Normalize the temperature by warming up the engine.
Fuel injection pump timing is not adjusted - Set up as recommended.
Incorrectly adjusted low idle speed - Correct the settings.
Damaged or clogged injectors - Change or clean fuel injectors.
Misaligned or faulty connecting rod - Align or replace connecting rod.
Piston wear or scoring - Install new pistons.
| Drive System Troubleshooting |
Machine is not moving in one direction or either direction
Hydraulic oil level is low - Checking hydraulic oil level and add if necessary.
Jammed or damaged undercarriage tracks - Remove jamming or repair tracks.
Relief valve failure - Relief valve need to be replaced or repair.
Clogged hydraulic filter or suction line - Clean suction line or replace hydraulic filter.
Faulty hand or foot controls - Replace or repair.
Drive motor or pump is defective - Repair or replace faulty component.
Machine will not move straight or moves jerkily
Undercarriage tracks are jammed or defective - Remedy jamming or repair tracks.
Tracks are sagging or worn - Adjust track sag with tensioning or replace tracks.
Undercarriage track frame is clogged with dirt, debris, or foreign objects - Remove debris or foreign objects and clean track frame.
Power is too low
Hydraulic oil filter is plugged - Replace or service hydraulic filter.
Damaged or opened relief valve - Replace or close relief valve.
Transmission components are faulty or damaged - Inspect and replace faulty parts.
Input drive shaft is defective - Change or repair faulty drive shaft.
There is air in the hydraulic system - Air bleeding is required.
Drive system is overheated
Insufficient hydraulic oil - Checking hydraulic oil level and add if necessary.
Dirty hydraulic fluid filter - Change or service hydraulic filter.
Relief valve failure - Repair or replace relief valve.
Hydraulic motor or drive pump is worn - Inspect and change as required.
Dirty oil cooler - Clean cooling fins as required.
Drive system is overloaded - Reduce drive system load.
Drive system is excessively noisy
Incorrect oil viscosity - Use correct oil viscosity.
Hydraulic system is leaking air - Bleed air from hydraulic system.
Drive pump or hydraulic motor is damaged - Change or repair faulty component.
Mechanical components of drive system are defective or worn - Check the components for worn or defect and replace if necessary.
| Hydraulics Troubleshooting |
Hydraulic system has overheating
Hydraulic pressure incorrectly adjusted - Hydraulic pressure must be set correctly.
Defective or misadjusted main relief valve - Adjust the valve or replace if necessary.
Contaminated hydraulic fluid - Hydraulic fluid change required.
Hydraulic fluid level is low - Fill the hydraulic system with oil.
Hydraulic pump is defective - Change or repair hydraulic pump if required.
Lift arm cannot be raised or lowered
Faulty lift controls - Repair or replace.
Defective hydraulic pump - Repair or replace pump if necessary.
Hydraulic control valve malfunction - Install a new valve or repair it.
Hydraulic cylinder failure - Change or repair lift cylinder.
Low hydraulic fluid level - Fill up the hydraulic fluid.
Bucket does not tilt
Bucket controls are faulty - Replace or repair.
Hydraulic pump malfunction - Repair or install new hydraulic pump.
Hydraulic control valve is defective - Repair or replace the valve.
Hydraulic bucket cylinder not working - Repair or replace cylinder.
Low hydraulic fluid level - Add fluid as required.
Slow boom or bucket operation
Hydraulic pump is defective - Test the pump flow rate and change pump if required.
Leaking hydraulic cylinder - Change cylinder piston seals.
Hydraulic oil is insufficient - Fill the system to proper hydraulic oil level.
Hydraulic control valve is not set properly or defective - Repair or adjust correctly.
Hydraulic pressure is low - Hydraulic pressure must be set correctly.
Bucket or boom is moving jerkily
Air trapped in hydraulic system - Air bleeding is required.
Clogged hydraulic oil filter element - Clean or install new filter.
Dirty hydraulic oil - Hydraulic oil change required.
Scratched cylinder rod or tube - Replace damaged component.
Excessive hydraulic pump noise
Hydraulic leakage or low oil level - Refill hydraulic oil or repair leaks in system.
Clogged hydraulic filter - Change or clean oil filter.
Clogged suction line - Suction line must be serviced.
Air in hydraulic pump - Bleed air.
Damaged pump components - Rebuild or change hydraulic pump.
| Electrical Troubleshooting |
Battery will not charge
Electrical cable connections are loose or corroded - Service or tighten connections.
Battery terminal clamps are defective - Terminal clamps should be changed.
Dead cell in battery - Use a new battery.
Belt is worn or loose - Change belt or adjust belt tension.
Starter turning slow
Battery voltage is low - Low battery charging, charge as required.
Battery is draining quickly - Service or change the battery.
Bad battery terminals or disconnected wiring - Check cables and clean or change terminals.
Starter is not working
Battery is discharged or defective - Recharge or replace battery.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Low battery output - Charge the battery.
Damaged starter motor - Starter should be replaced.
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| COMPACT TRACK LOADERS SPECIFICATIONS |