Blue Bird M380 2003, Owner'S Manual

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5 – Maintenance/Service Procedures – Engine, Transmission, Chassis______________________M380 Owner’s Manual
5-1-8 Rev. “F”
A worn tensioner that has play in it or a belt that “walks” off its pulley possibly indicates pulley
misalignment.
This measurement can be taken with a straightedge and an inclinometer.
Install the belt.
5-1.3.7 Idle/Warm-up/Cooldown
Excessive Idle
This should be avoided whenever possible. Excessive Idle will result in reduced fuel economy
and increased engine wear. An automatic shutdown feature is available. Contact a Cummins
distributor for details.
Engine Warm-Up
Do not operate at full speed/load until coolant temperature reaches normal operating range. Do
not operate above low idle until oil pressure is indicated.
Engine Cool Down
Prior to shutdown, an engine should be idled 3-5 minutes after extended full throttle or high power
operation. However, under normal driving conditions, such as exiting a highway, engine operation
is generally lighter in nature and thereby, the 3-5 minute cooldown is not necessary.
5-1.3.8 Diagnostic Fault Codes
The ISL control system can show and record
operation anomalies that present themselves as
fault codes. These codes will make
troubleshooting easier. The fault codes are
recorded in the ECM. They can be read using the
fault lamps in the dash or with the INSITE™
service tool.
NOTE: Not all ISL control system anomalies
are shown as fault codes.
There are three types of system codes:
•
Engine electronic control system fault
codes
•
Engine protection system fault codes
•
Engine maintenance indicator codes
All fault codes recorded will be either active (fault
code is currently active on the engine) or inactive
(fault code was active at some time, but at the
moment is
not active).