Detroit Diesel MBE 900, Operator'S Manual

Page: 91 / 158

MAINTENANCE
Figure 29 Minor Rib Cracking
Auto Tensioner
– Auto tensioners
are usually maintenance free for the
life of the engine. However, routine
inspections should be performed.
Uneven belt wear can indicate a loose,
wore out, or bad bearing on the auto
tensioner. A build up of dirt or grime
around the front bearing surface of the
wheel can indicate a future bearing
failure due to inadequate lubrication.
Item 5 – Fuel / Water Separator
Incorporated into the fuel fi lter
module is a fuel/water separator. The
separator removes emulsi
fi ed water as
well as droplets and is located in the
lower compartment of the fuel
fi lter
module. An optional water in fuel
sensor will indicate when the trapped
water needs to be drained. If the water
in fuel sensor is not available, periodic
draining of the trapped water should
be performed.
Item 6 – Fuel Filters
The fi nal fi lter is housed within the
fuel fi lter module. The fi lter element
fi lters particles down 4 micron and is
snapped into the cap.
Item 7– Air System
Air Cleaner
– The air cleaner
element should be inspected per the
maintenance intervals or more often
if the engine is operated under severe
dust conditions.
Replace the element, if necessary.
Check the gaskets for deterioration
and replace, if necessary. If the dry
type air cleaner is equipped with an
aspirator, check for aspirator damage
or clogging. Clean, repair or replace,
as necessary.
80
All information subject to change without notice. (Rev. 04/08)
DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION