Electrical System - Troubleshooting Electrical System - New Holland T4.75F Operator's Manual

Electrical system - Troubleshooting ELECTRICAL SYSTEM

Problem
The electrical system
does not work
Batteries not charging
Low starter motor speed
and difficulty in starting
engine
Starter motor does not
work
Battery charge light stays
on when engine is running
The battery charge
light flashes to indicate
excessive charge voltage
8 - TROUBLESHOOTING
Possible Cause
Battery terminals loose or corroded
Battery
Terminals loose or corroded
Battery
Belt loose or worn
Connections loose or corroded
Battery
Engine oil viscosity wrong
Gear lever engaged
Connections loose or corroded
Batteries totally flat
Engine idling speed is low
Alternator belt loose
Battery fault
Alternator fault
Alternator fault
Clean and tighten terminals
Check that battery charge is at least 12.6 V.
Check electrolyte level and specific gravity
Clean and tighten terminals
Check that battery charge is at least 12.6 V.
Check electrolyte level and specific gravity
Check belt tensioning device. If necessary,
replace the belt
Clean and tighten loose connections
Check that battery charge is at least 12.6 V.
Check electrolyte level and specific gravity
Use oil of viscosity specified for tempera-
ture conditions
Move gear lever to neutral
Clean and tighten terminals
Charge or replace batteries
Increase idling speed
Check belt tensioner
Check that battery charge is at least 12.6 V.
Check electrolyte level and specific gravity
Have the alternator checked by your dealer
or an authorized workshop
Have the alternator checked by your dealer
8-5
Correction