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Bobcat 883 G-Series Problems

The Bobcat 883 G-Series skid steer loader driveline system components: a 178 cu.in (2.9L) Deutz BF4M1011F 4-cylinder turbocharged diesel engine with a rated power of 73.5 hp (54.8 kW), and 1-speed or 2-speed hydro transmission. The hydraulic system has a pump with a rated capacity of 20.7 gal/min (78.4 l/min) or 30.7 gal/min (116.3 l/min). The Bobcat 883 is equipped with a vertical-lift loader boom, 100HS drive chains, and 33x15.5x16.5 standard tires. The skid steer loader has a max lift height of 124.3" (3155 mm) to hinge pin and dump height of 99" (2515 mm). The rated operating capacity is 2750 lbs (1275 kg), and tipping load is 5500 lbs (2550 kg).

Engine Troubleshooting

Engine starts hard or doesn't start
Air trapped in fuel system - Bleed air.
Fuel filter element is clogged - Service the filter.
Fuel injection nozzles are damaged - Check and replace nozzles if required.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Valve clearance is not correct - Correct valve clearance needs to be set.
Fuel injection pump is defective - Install a new pump or rebuild.

Engine starts but then stops
Plugged air cleaner - Service or replace air cleaner.
Fuel filter element clogging - Service or replace the filter.
Fuel injection pump is leaking - Repair any leaks.
Defective or clogged fuel injectors - Test and replace fuel injectors if necessary.
Fuel injection pump is not operating properly - Change pump or rebuild it.

Engine stalls during operation
Low coolant temperature - Warm up the engine.
Dirty fuel filter - Install new filter element.
Air in the fuel system - Air bleeding.
Clogged or defective injection nozzles - Check injection nozzles and replace if required.
Improper setting of fuel injection pump timing - Use the correct fuel injection pump timing adjustment.

Engine stops when idling
Low idle speed setting is not correct - Adjust low idling as recommended.
Fuel injection pump damage - Install a new pump or rebuild.
Fuel injectors are faulty or clogged - Clean or replace fuel injectors.
Excessive valve clearance - Adjust valve clearance.

Loss of engine power
Air cleaner is clogged - Clean or change.
Defective injection nozzle - Replace injection nozzles.
Insufficient fuel injection pressure - Correct the pressure settings.
Excessive valve clearance - Adjust valve clearance.
Incorrect low idle setting - Correct low idle settings.
Clogged fuel hoses or lines - Fuel hoses and lines must be clean.
Cylinder head gasket is defective - Cylinder-head gasket replacement required.
Worn or damaged piston rings - Piston rings need to be replaced.

Engine overheats
Low coolant level - Top up coolant fluid and check system for leaks.
Engine oil level is low - Need to add engine oil.
Dirty radiator fins or defective radiator cap - Clean radiator or change cap.
Fan belt slipping or worn - Replace as required.
Engine is overloaded - Load reducing is recommended.

Oil pressure is insufficient
Low oil level - Check oil level and add oil as required.
Engine oil filter is plugged - Clean or change engine oil filter.
Wrong oil viscosity - Fill up with the proper oil viscosity.
Incorrect crankshaft bearing oil clearance - Replace bearings.
Oil pump is worn or damaged - Inspect and change as required.

Engine knocking or noise
Engine oil level low - Check oil level and add oil as required.
Engine has not warmed up to the recommended temperature - Warm up to required temperature.
Fuel injection pump timing is wrong - Use the correct fuel injection pump timing adjustment.
Wrong adjustment of low idle speed - Correct the settings.
Clogged or defective injectors - Clean fuel injectors or change it.
Misaligned or faulty connecting rod - Connecting rod needs to be aligned or changed.
Pistons are broken or worn - Pistons need to be replaced.

Drive System Troubleshooting

Drive system will not operate in either direction
Low hydraulic oil level - Need to add oil.
Worn drive chain - Check drive chain and change faulty parts.
Relief valver is broken - Repair or replace.
Hydraulic filter or suction line is dirty - Change hydraulic filter or service suction line.
Faulty hand or foot controls - Repair or replace.
Defective drive pump or motor - Repair or change faulty component.

Loss of power
Hydraulic oil filter is clogged - Replace or service hydraulic filter.
Relief valve is defective or opened - Close or replace relief valve.
Faulty or damaged transmission components - Inspect and change faulty parts.
Worn input drive shaft - Replace drive shaft.
Hydraulic system is leaking air - Need to bleed air.

Drive system keeps overheating
Low hydraulic fluid level - Fill up the hydraulic fluid.
Clogged hydraulic fluid filter - Replace or clean hydraulic filter.
Relief valve defective or worn - Service or change relief valve.
Drive pump or hydraulic motor malfunction - Replace or repair faulty component.
Hydraulic oil cooler is dirty - Clean the cooling fins.
Drive system overloaded continuously - Reduce drive system load.

Drive system is excessively noisy
Oil viscosity is too heavy - Use oil of proper viscosity.
Hydraulic system is leaking air - Bleed air from system.
Drive pump or hydraulic motor malfunction - Repair or change faulty component.
Mechanical components of drive system are damaged or worn - Inspect drive system and replace faulty components.

Hydraulics Troubleshooting

Hydraulic system overheated
Hydraulic pressure incorrectly adjusted - Correct setting is required.
Misadjusted or defective main relief valve - Set up or change the relief valve.
Hydraulic fluid contamination - The fluid must be changed.
Not enough hydraulic oil in the system - Fill the hydraulic system with oil.
Hydraulic pump is faulty - Repair or change pump if required.

Boom cannot be lowered or raised
Defective lift controls - Replace or repair.
Defective hydraulic pump - Repair or change pump if required.
Defective hydraulic control valve - Repair or change hydraulic valve.
Hydraulic cylinder is broken - Repair or install a new lift cylinder.
Hydraulic fluid is insufficient - Checking hydraulic fluid level and add if necessary.

Bucket is not working
Bucket tilt controls malfunction - Check and repair as required.
Hydraulic pump not working - Install new pump or repair it.
Hydraulic control valve is defective - Change or repair hydraulic valve.
Bucket cylinder failure - Repair or install a new cylinder.
Insufficient hydraulic fluid - Checking hydraulic fluid level and add if necessary.

Boom or bucket moves slowly
Defective hydraulic pump - Check pump flow and change pump if necessary.
Hydraulic cylinder oil leakage - Change cylinder piston seals.
Insufficient hydraulic fluid - Fill the system to proper hydraulic fluid level.
Faulty or incorrect setting hydraulic control valve - Repair or set properly.
Low hydraulic pressure - Correct setting is required.

Lift arm or bucket is working jerkily
Hydraulic system is leaking air - Need to bleed air.
Hydraulic oil filter clogging - Clean or change the filter.
Hydraulic oil is dirty - Change hydraulic oil.
Scored cylinder tube or rod - Change damaged component.

Hydraulic pump is noisy
Hydraulic leakage or low oil level - Add hydraulic oil or correct system leaks.
Clogged hydraulic filter - Clean or change the filter.
Suction line clogging - Need to service the suction line.
Air enters the pump - Remove air from hydraulics.
Pump parts are damaged - Replace or rebuild the pump.

Electrical Troubleshooting

Battery does not charge
Loose or corroded electrical wiring connections - Service or tighten connections.
Faulty battery terminal connectors - Replace terminal connectors.
Dead cell in battery - Battery replacement required.
Belt is damaged or loose - Replace belt or adjust belt tension.

Starter cranks slowly
Low battery power - Battery needs to be recharged.
Battery drains quickly - Service battery or change it.
Wires are disconnected or battery terminals are corroded - Connect wiring correctly or install new terminals.

Starter is not cranking
Battery is discharged or worn - Battery needs to be recharged or replaced.
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly.
Low battery output voltage - Battery needs to be recharged.
Starter motor is faulty - Change or repair starter.