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| Home / Skid Steer Loaders / Caterpillar Skid Steer Loaders / Cat 246C |
Caterpillar 246C Troubleshooting
The
Cat 246C skid steer loader is powered by 207.5 cu.in (3.4L) Caterpillar C3.4 DIT
4-cylinder direct injection turbocharged diesel engine with a rated power of 73
hp (54 kW) at 2500 rpm. The Caterpillar 246C is equipped with a radial-lift
loader boom, single-speed or two-speed hydrostatic transmission, 100HS drive
chains, and 12.00x16.5 standard tires. The hydraulic system has a pump with
fluid flow rate of 22 gpm (84 lpm) or 33 gpm (125 lpm). The skid steer loader
has a rated operating capacity of 2150 lbs (975 kg) and tipping load of 4300 lbs
(1950 kg). The lift height is 122.9 inches (3120 mm) to hinge pin, and dump
height is 95.4 inches (2425 mm).
| Engine Troubleshooting |
Engine starts up hard or doesn't start
Air trapped in fuel system - Bleed air.
Dirty fuel filter - Install new filter element.
Clogged or burnt injection nozzle - Clean or replace injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
Valve clearance is out of adjustment - Check and adjust as required.
Fuel injection pump is not working correctly - Change pump or rebuild it.
Engine starts and then shuts off
Air filter is dirty - Clean or replace element.
Clogged fuel filter - Clean or replace the filter.
Fuel injection pump is leaking - Repair any leaks.
Damaged or clogged injectors - Test and replace fuel injectors if necessary.
Fuel injection pump malfunctioning - Replace injection pump or repair it.
Engine stalls after running
Engine is not fully warmed up - Warm up to required temperature.
Clogged fuel filter - Clean or change the filter.
Air in the fuel lines - Bleed the fuel lines.
Defective injection nozzle - Clean or replace injection nozzles.
Timing of fuel injection pump is incorrect - Adjust according to specifications.
Engine stops when idling
Improperly adjusted low idle speed - Normalize low idle speed.
Fuel injection pump is faulty - Change or repair the pump.
Fuel injectors are dirty or defective - Replace or clean fuel injectors.
Incorrect valve clearance - Adjust valve clearance.
Low engine power
Plugged air cleaner - Install new air cleaner element.
Fuel injection nozzles are clogged or faulty - Check and replace nozzles if required.
Uneven fuel injection pressure - Test fuel injection pressure and adjust it correctly.
Incorrect valve clearance - Adjust valve clearance.
Improperly adjusted low idle speed - Test and adjust.
Dirt in the fuel hoses or lines - Service fuel lines and hoses.
Leaking cylinder head gasket - Change cylinder head gasket.
Piston rings are defective or leaking - Change piston rings.
Engine overheats
Low coolant level - Add coolant fluid to cooling system and also check it for leaks.
Not enough engine oil - Check oil level and add oil as required.
Defective radiator cap or clogged radiator core - Change cap or clean radiator.
Loose or damaged fan belt - If necessary, replace the belt.
Engine overload - Reduce engine load.
Oil pressure is insufficient
Oil level is insufficient - Need to add oil.
Engine oil filter is plugged - Change or clean engine oil filter element.
Wrong oil viscosity - Use correct viscosity oil.
Excessive crankshaft bearing oil clearance - Install new bearings.
Oil pump is damaged - Check and replace if necessary.
Engine knocks or noises
Lack of engine oil - Checking oil level and add if necessary.
Engine is not fully warmed up - Warm up engine as required.
Improper fuel injection timing - Adjust as recommended.
Wrong adjustment of low idle speed - Adjustment required.
Defective fuel injectors - Replace or clean fuel injectors.
Connecting rod is worn or not aligned - Need to align or replace the connecting rod.
Worn or scored pistons - Pistons replacement required.
| Drive System Troubleshooting |
Drive system does not work in either direction
Hydraulic fluid is insufficient - Checking hydraulic fluid level and add if necessary.
Drive chain fault - Inspect drive chain and replace faulty components.
Relief valver is broken - Repair or replace.
Dirty hydraulic filter or suction line - Check, clean, or change if necessary.
Defective foot or hand controls - Replace or repair.
Drive motor or pump is worn - Inspect and replace as necessary.
Low power
Clogged hydraulic oil filter - Check, clean, or change as necessary.
Worn or open relief valve - Close or change relief valve.
Transmission components are worn or defective - Inspect and replace defective parts.
Input drive shaft is damaged - Replace drive shaft.
Air leaks in hydraulic system - Bleed air from system.
Drive system is overheated
Low hydraulic fluid level - Check and refill the hydraulic fluid.
Hydraulic fluid filter is plugged - Check, clean, or replace as required.
Relief valve malfunction - Repair or replace.
Defective drive pump or hydraulic motor - Repair or replace faulty component.
Dirty oil cooler - Clean the cooling fins.
Drive system overload - Reduce loading.
Drive system makes excessive noise
Oil viscosity is too heavy - Drain and refill with proper oil.
Hydraulic system is leaking air - Bleed air from hydraulic system.
Damaged drive pump or hydraulic motor - Replace or repair faulty component.
Mechanical components of drive system are defective or worn - Inspect the components for defect or damage and repair as needed.
| Hydraulics Troubleshooting |
Hydraulic system overheats
Hydraulic pressure incorrectly adjusted - Adjust pressure as required.
Faulty or improperly adjusted main relief valve - Adjust relief valve or change if required.
Hydraulic oil is dirty - Hydraulic oil change required.
Lack of hydraulic oil - Check oil level and add hydraulic oil as required.
Hydraulic pump is faulty - Repair or install new hydraulic pump.
Boom can't lift or drop
Lift controls failure - Replace or repair.
Hydraulic pump is broken - Repair or install new hydraulic pump.
Hydraulic control valve malfunction - Install a new hydraulic valve or repair it.
Broken hydraulic cylinder - Change or repair lift cylinder.
Hydraulic fluid is insufficient - Checking hydraulic fluid level and add if necessary.
Bucket fails to tilt
Bucket tilt controls are damaged - Replace or repair.
Damaged hydraulic oil pump - Replace or repair pump if necessary.
Hydraulic control valve is defective - Install a new valve or repair it.
Bucket cylinder malfunction - Repair or install a new cylinder.
Low hydraulic fluid level - Add fluid as required.
Slow bucket or lift arm operation
Hydraulic pump is worn - Test the pump flow rate and change pump if required.
Hydraulic cylinder oil leakage - Cylinder seals need to be replaced.
Insufficient hydraulic fluid - Fill the system to proper hydraulic fluid level.
Faulty or incorrect setting hydraulic control valve - Adjust correctly or repair.
Hydraulic pressure loss - Adjust it correctly.
Bucket or boom jerks when working
Hydraulic system is leaking air - Need to bleed air.
Hydraulic oil filter element is dirty - Clean or change the filter.
Dirty hydraulic oil - Change hydraulic oil.
Scored cylinder tube or rod - Replace defective component.
Hydraulic pump is noisy
Lack of oil or hydraulic leakage - Refill hydraulic oil or repair leaks in system.
Hydraulic filter is dirty - Clean or install new filter.
Suction line is dirty - Service the suction line.
Air trapped in hydraulic pump - Need to bleed air.
Pump components are damaged - Replace or rebuild the pump.
| Electrical Troubleshooting |
Battery will not charge
Corroded or loose cable connections - Service or tighten cable connections.
Faulty battery terminal clamps - Change terminal clamps.
Battery bad cell - Battery replacement required.
Belt is worn or loose - Belt needs to be adjusted or changed.
Starter turning slow
Low battery output voltage - Charge the battery.
Battery discharges quickly - Service charging system or replace battery.
Bad battery terminals or disconnected wiring - Connect wires properly or change terminals.
Starter will not crank
Battery is low or faulty - Charge or change the battery.
Wiring is improperly connected or disconnected - Check wiring and connect properly.
Battery voltage is low - Battery is drained, charge it.
Defective starter motor - Repair or change starter.
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| SKID STEER LOADERS SPECIFICATIONS |