Troubleshooting; Symptom(S); Engine - Troubleshooting - New Holland Boomer 45 Operator's Manual

8 -

TROUBLESHOOTING###_8_###

Symptom(s)

Engine - Troubleshooting

Problem
The start motor does not
rotate with the key switch
in the (START) position.
The start motor rotates
but the engine does not
start
Engine speed is irregular Air in fuel system
Engine stops suddenly
during operation
Engine stops suddenly
during operation
Engine overheating
The color of exhaust
smoke is white
The color of exhaust gas
is black.
Low engine power
Instrument panel engine
oil pressure indicator light
is "ON" during operation.
Instrument panel battery
charging indicator is "ON"
during operation.
8 - TROUBLESHOOTING
Possible Cause
Low battery charge
Loose battery or starter cable terminals
Key switch faulty
Safety start switch not completing circuit
PTO safety switch is not in "OFF" position Place PTO switch in "OFF" position
Starter motor faulty
Low battery charge
Air in fuel system
Fuel filter clogged
Fuel filter clogged
Injection nozzle clogged
Fuel leakage
Fuel shortage
Faulty fuel injector
Internal parts of engine seized due to lack
of lubrication
Fuel shortage
Faulty fuel injector
Internal parts of engine seized due to lack
of lubrication
Lack of coolant
Fan belt slipping or belt is broken
Dirt attached to the radiator or prescreen
Low engine operating temperature
Engine burning engine oil
Engine coolant entering engine exhaust
Air filter clogged
Excessive fuel supply
Faulty fuel injector
Fuel injector nozzle clogged
Carbon accumulation on valve seat
Incorrect valve gap adjustment
Lack of fuel supply
Air filter clogged
Lack of engine oil
Low viscosity of engine oil
Faulty pressure switch
Faulty engine oil pump
Engine oil filter clogged
Bad electrical connection
Charge or replace
Tighten the terminal
Repair or replace switch
Depress clutch pedal fully
Repair or replace starter motor
Charge or replace battery
Bleed out the air
Clean or replace the filter
Bleed the fuel system
Clean or replace the filter
Repair or replace nozzle
Repair fuel system
Add fuel and bleed air from fuel system
Repair or replace injector
Repair engine as needed
Add fuel and bleed air from fuel system
Repair or replace injector
Repair engine as needed
Add coolant as needed
Adjust belt tension or replace belt
Clean radiator fins or screen as needed
Allow engine to obtain higher operating
temperature
Repair engine as needed
Repair engine as needed
Clean or replace engine air filter
Contact authorized dealer
Contact authorized dealer
Repair injector as needed
Repair valve and seats as needed
Adjust valve gap to correct amount
Check fuel system for restriction
Clean or replace air filter
Add engine oil as needed
Replace oil with proper viscosity type
Replace switch
Repair oil pump as needed
Replace the filter
Check battery terminals, ground, and repair
as needed
8-1
Correction