Detroit™ Gen 5 Heavy Duty engines utilize a specially designed belt material
which is exclusive to the Original Equipment Manufacturer (OEM). Replacement
with an aftermarket part may lead to shortened maintenance intervals and excessive
noise. Consult with an authorized Detroit™ service outlet to obtain proper engine
belts.
Drive belts wear differently based on environmental conditions and vehicle duty
cycle. If the vehicle is operated in extremely hot or cold climates, or is exposed to
significant dust/debris/road salt, the lifetime of the belts may be significantly
reduced. The belts should be replaced per the maintenance intervals, Refer to
section "Preventive Maintenance Tables".
Cooling System
Proper maintenance of the cooling system is vital to its performance and longevity.
The cooling system deals with cavitation, temperature and pressure swings, and
continuous threats to the additive package.
Failure to maintain the cooling system at required concentrations or using coolants
that do not meet Detroit™ specifications will result in severe damage to the engine
cooling system and related components. The cooling system should be maintained
per the maintenance intervals, Refer to section "Preventive Maintenance Tables".
Exhaust System and Exhaust Gas Recirculation (EGR) System
The exhaust manifold and other exhaust system connections should be inspected
for leaks. The EGR system should be inspected for leaks periodically. Sealing of
the exhaust and EGR system is critical. Have worn or damaged parts repaired or
replaced. The exhaust and EGR systems should be inspected per the maintenance
intervals, Refer to section "Preventive Maintenance Tables".
Engine Steam Clean
Steam cleaning of the engine is required as part of the preventative maintenance.
The engine should be steam cleaned every 100,000 km (60,000 mi) or 2,000 hours,
whichever comes first.
Fuel Filters
The prefilter is housed within the fuel filter module. The prefilter element filters out
large particles and is fastened onto the prefilter cap. The final filter is housed within
the fuel filter module. The final filter has the task of separating out the water
contained in the fuel and also filtering out small particles. The final filter is
fastened onto the final filter cap. Fuel filters should be replaced per the
maintenance intervals, Refer to section "Preventive Maintenance Tables".
Preventive Maintenance Intervals
50
All information subject to change without notice.
Copyright © 2020 DETROIT DIESEL CORPORATION
DDC-SVC-MAN-0217
