Engine - Troubleshooting - Case 570T Operator's Manual

8 - TROUBLESHOOTING###_8_###
SYMPTOM(S)

Engine - Troubleshooting

Problem
The engine does not start Partially discharged batteries
The engine stops
The engine overheats
The engine has
anomalous knocks
8 - TROUBLESHOOTING
Possible Cause
Corroded or loose connections to the bat-
tery terminals
Dirt or water accumulations in fuel lines
No fuel in the tank
No supply to the injection pump
Air in the fuel system
Damaged starter motor
Irregular delivery of the supply pump
Dirt or water accumulations in fuel lines
Restricted fuel filters
Burned or cracked valves
Air in the fuel system
Damaged injection pump controls
The centrifugal pump of the cooling system
is faulty
Faulty temperature switch
Radiator partially faulty
Scales in coolant passage compartments
in cylinder heads and crankcase
Centrifugal pump drive belt and fan drive
belt too slack
Coolant (insufficient quantity)
Incorrect timing of the engine
Restricted air filter
Partially obstructed or damaged injectors
Dirt accumulations in fuel lines
Drive shaft knocks caused by an exces-
sive clearance of one or more crankshaft
bearings or big end bearings or excessive
shoulder clearance
Unbalanced drive shaft
Loose flywheel retaining screws
Check, charge the batteries and, if neces-
sary, replace them
Clean, inspect, tighten the nuts and, if nec-
essary, replace the excessively corroded
terminals and nuts
Disconnect the lines and the injection pump
and carefully clean them; if necessary,
clean and dry the fuel tank
Fill the tank
Check and, if necessary, replace the supply
pump
Check the lines, the fittings, the supply
pump, the filters and the injection pump for
the presence of air, then bleed the system
Repair or replace the starter motor
Check delivery on the workbench
Disconnect the lines and the injection pump
and carefully clean them; if necessary,
clean and dry the fuel tank
Replace the filter cartridges
Replace the valves
Check the lines, the fittings, the supply
pump, the filters and the injection pump for
the presence of air, then bleed the system
Replace the damaged parts
Overhaul the pump and, if necessary, re-
place it
Replace the temperature switch
Eliminate possible scales by washing,
check and repair possible tube leaks
Carefully wash
Check and adjust belt tension
Restore the level in the expansion tank by
adding the prescribed fluid
Check and correctly time the engine
Clean the assembly and, if necessary, re-
place the filter element
Clean, overhaul and correctly calibrate the
injectors
Clean the lines and replace the visibly
dented pipes; if necessary, clean the injec-
tion pump
Rectify the drive shaft pins, assemble big-
ger shoulder bearings and rings
Check the alignment and the balance of the
drive shaft and, if necessary, replace it
Replace the loose screws and tighten all
screws to the prescribed torque + angle
8-1
Correction