Isuzu AU-4LE1T, Maintenance Manual

Page: 105 / 126

100
21. Cooling system circuit
cleaning
Clean the cooling system circuit every 12 months or 1000 hours.
22. Radiator filler cap
function check
Check radiator pressure cap periodically for proper operation according to the
equipment manufacturer’s specifications.
23. Electrolyte level check
Replenish with distilled water if necessary.
24. Battery cleaning Clean the terminals.
25. Battery charge
condition
Ammeter registration goes to plus (+) side while engine running. In the lamp type, the
lamp is completely being off while engine running.
Check charging circuit if the lamp is not off.
26. Electrolyte gravity
check
Check according to the equipment manufacturer’s specifications.
27. Starter and alternator
check and cleaning
Check wear condition of brush and commutator.
28. Wiring and connection
check
Check according to the equipment specifications.
29. Preheating condition
check
Check preheating condition of the system.
30. Air cleaner element
replacement
Change element according to the manufacturer’s specifications.
31. Turbocharger check Check turbocharger every 1500 hours. (Clean blower as necessary.)