Chapter 6
PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
6-16
Inlet and Exhaust Systems
Inspection and Draining Water of
Exhaust Pipes and Exhaust Muf-
fler
Check the exhaust pipes and muffler for damage
and cracks. If they are damaged or cracked, con-
tact a Mitsubishi dealer.
Remove the drain plug and allow water to drain
from the exhaust muffler. Be sure to reinstall the
drain plug after draining water.
Draining Water From Air Cooler
Chamber and Inspection for Water
Leakage
Loosen the water drain cock on the air cooler
chamber to drain condensed water from the air
cooler chamber, and also check the air cooler for air
leaks.
Be sure to close the drain cock after draining con-
densed water or checking water leakage.
If a large amount of water is discharged from the
water drain cock, there may be water leaks in the
air cooler or water pipes. If this happens, contact a
Mitsubishi dealer.
Cleaning, Inspection and Changing Pre-Cleaner
Do not service the air cleaner while the engine is
running. Maintenance of the air cleaner while the
engine is in operation can cause dust to enter the
engine and result in rapid wear of parts, leading to a
shorter service life.
Remove dust from the inlet side of the pre-cleaner
installed to the silencer of the turbocharger. Be sure
to keep the pre-cleaner clean to ensure optimum
engine performance.
1 Remove the pre-cleaner from the silencer, and
hand-wash the pre-cleaner with a mild detergent.
2 Rinse the pre-cleaner with clean water.
3 After drying thoroughly, inspect the pre-cleaner for cracks and damage.
If the pre-cleaner is cracked or damaged, replace it with a new part.
4 After cleaning, inspecting or changing the pre-cleaner, reinstall it to the silencer.
fig.6-28 Inspection and raining water of exhaust
pipes and exhaust muffler
fig.6-29 Water drain cock on air cooler chamber
(S12U)
Water drain cock
on air cooler
chamber
fig.6-30 Cleaning pre-cleaner
