Operation and maintenance manual

www.changlin.com.cn


61/167
pages

Operate the engine for 5 minutes with the coolant
temperature above 80°C [176°F],
Shut the engine off and drain the cooling system.
NOTE: If the water being drained is still dirty, the
system must be flushed again until the water is
clean.
CoolantSystemFilling
The system has a maximum fill rate of 14 liters per
minute [3.5 U.S. Gallons per minute]. Do not exceed
this fill rate.
Caution: The system must be filled slowly to prevent
air locks. During filling, air must be vented from the
engine coolant passages. Be sure to open the
petcock on the aftercooler for aftercooled engines.
Wait 2 to 3 minutes to allow air to be vented, then
add mixture to bring the level to the top.
Use a mixture of 50 percent water and 50 percent
ethylene glycol antifreeze to fill the cooling system.
*4BTAand 6BTA engines use a jacket-water
aftercooler. If a Charge Air Cooler is used, the
coolant capacity is the same as the naturally
aspirated or turbocharged only engines.
Coolant Capacity (Engine
Only)
Lite
r
[U.S. Quarts]
4B3.9 6B5.9
4BT3.9 4BTA3.9
*
6BT5.9 6BTA5.9
*
7
.
0
[7
.
4]
7
.
9
[8
.
4]
9
[9
.
5]
9
.
9
[10
.
5]
Caution: Never use water alone for coolant.
Damage from corrosion can be the result of using
water alone for coolant.