MAINTENANCE
or equivalent. If tension is 250 lbs
(1,112 N) or more, no retensioning is
required. If tension is less than 250 lbs
(1,112 N), retension to 250 lbs (1,112
N). Measure belt tension every month
or every 7,500 miles (12,000 km),
whichever comes first. Retension to
250 lbs (1,112 N) as required.
Belt Replacement —
Drive belts
(V and poly-V) should be replaced
every 2,000 hours or 100,000 miles
(160,000 km).
Replace all belts in a set when one
is worn. Single belts of similar size
should not be used as a substitute for
a matched belt set. Premature belt
wear can result because of belt length
variation. All belts within a matched
set are within .032 in. (0.8 mm) of
their specified center distances.
When installing or adjusting an
accessory drive belt, be sure the bolt
at the accessory adjusting pivot point
is properly tightened, as well as the
bolt in the adjusting slot. In addition,
check the torque on the alternator and
bracket mounting bolts. Retighten as
required.
Item 9 – Air Compressor
All air compressor intake parts
should be removed and cleaned at the
following intervals:
On Highway Vehicle Engines –
7,500 miles (12,000 km)
Industrial Engines – 150 Hours or
4,500 miles (7,200 km)
To clean either the hair type or the
polyurethane type compressor air
strainer element, saturate it and
squeeze it in fuel oil or any other
cleaning agent that is not detrimental
to the element until it is dirt-free. Then
saturate the element in lubricating oil
and squeeze it dry before placing it
back into the air strainer.
For air strainer replacement,
contact the nearest servicing dealer.
Replace hair type elements with the
polyurethane type, if available.
The air compressor mounting bolts
should be tightened every 12 months
or 30,000 miles (48,000 km) for
on-highway engines or every 300
hours for industrial applications.
Item 10 – Air Cleaner
The air cleaner element should be
inspected every 15,000 miles (24,000
km) for vehicle engines, 150 hours for
non-vehicle engines, or more often if
the engine is operated under severe
dust conditions.
72
All information subject to change without notice. (Rev. 01/04)
6SE484
0401
Copyright © 2004 DETROIT DIESEL CORPORATION
