OPERATOR'S MANUAL

Preventive Maintenance Cooling System
Model 330 PB1318 3/01 – 151 –
CAUTION: Do not overfill the cooling system.
When hot, it could overflow, resulting in loss of
coolant, reduced cooling protection, and
reduced corrosion-inhibitor protection.
Refilling
To refill the cooling system, follow the recommendations
below:
1. Before refilling be sure the radiator and engine block
drains are closed.
2. Move the heater control to maximum heat position.
3. Remove the surge tank pressure cap.
4. Through the surge tank, fill the system with premixed
coolant. Pour it in a steady flow until the radiator is full.
5. Start the engine and idle it at low rpm.
6. Complete the filling as quickly as possible. Idle the
engine until it reaches normal operating temperature.
7. Fill the radiator as necessary to raise the coolant level to
the proper level.
8. Replace the surge tank pressure cap.
You may find the coolant level is not up to the correct level
soon after you have filled the radiator. This may be because
all the trapped air in the system has not yet been purged. It
takes a little time for all the air to leave the system after you
fill the radiator.
For further details on coolant, coolant capacities, water fil-
ters, and antifreeze mixture see the
Engine Operation and
Maintenance Manual
(supplied with the vehicle) and the
Medium Duty Maintenance Manual.
Engine (Block) Heater (option)
WARNING! Do not use the heater if there are any
signs of problems. Engine block heaters can
cause fires resulting in serious personal injury
and/or property damage if not properly main-
tained and operated. Regularly inspect the
engine block heater wiring and connector for
Table 9 Coolant Capacity
ENGINE FILTER CAPACITY
CUMMINS C8.3 DCA4 28.2 qts (26.6L)
CAT 3126 See your Engine
Manual for details
28.5 qts (27.0 L