MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

Operating the Engine
Using special cold-starting equipment will help the engine
start easier. And in cold weather, fast engine starting helps
relieve the loads on the electrical system and cranking motor.
If you follow these few simple guidelines, you will extend the
service life of your vehicle’s engine:
• Keep the electrical system in top condition.
• Use the best quality and recommended grade of fuel
(see Engine Operation and Maintenance Manual).
• Use the recommended engine lubricating oil.
• As stated in the Normal Starting Procedures, when temperatures
are below normal, fully depress the accelerator
pedal after engaging the starter.
Engine Block Heater (Option)
To preheat the engine before starting, plug the optional
engine block heater into a properly grounded AC electrical
source. Do not start the engine with the heater plugged in.
Operating Instructions
WARNING! Engine block heaters can cause fires
resulting in serious personal injury and/or property
damage if not properly maintained and
operated. Regularly inspect the engine block
heater wiring and connector for damaged or
frayed wires. Do not use the heater if there are
any signs of problems. Contact your Authorized
Service Center or the manufacturer of the heater
if you are in need of repairs or information.
CAUTION: Always unplug the heater before
starting the engine. Damage to the cooling system
could occur if the heater is not turned OFF
(unplugged).
When the temperature falls below 0°F (–18°F) for Caterpillar
engines, or –10°F (–24°C) for Cummins engines, the block
heater is required.
• Use a solution of half ethylene glycol antifreeze and half
water for best heater performance. Do not exceed 65
percent concentration of antifreeze, as it can shorten
heater life. See page 145 for more information.
• After servicing the cooling system, operate the vehicle
for a day or two before using the heater. Trapped air
inside the engine needs time to escape.
– 58 – PB1318 3/01 Model 330