https://www.truck-manuals.net/
MTA0641
MTA0621
MTA0661
ENG
MTS0441
1-23 HOW TO HANDLE THE VEHICLE
•
Door open warning lamp
This lamp comes on when a door is either
opened or closed insecurely. Before moving
your vehicle, check that the warning lamp is
off.
•
Pre-heater warning lamp
This lamp is designed to indicate pre-heat-
ing of the engine. It comes on when starter
switch is positioned "ON", while it goes out
when the preheating is completed.
•
High beam indicator lamp
The high beam indicator lamp comes on
when head lamps with high beam are in use.
•
Exhaust brake indicator lamp
This indicator lamp is turned on when the
exhaust brake switch is operated, indicating
that the exhaust brake system is in opera-
tion.
The DDC engine vehicle is turned on when
the jake brake switch is operated, indicating
that the jake brake system is in operation.