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DESCRIPTION & OPERATION
OIL COOLER DE-AERATION LINE
To vent air which may otherwise become trapped
in the plate-type oil cooler when filling the cooling
system with coolant, a de-aeration line has been
added. This line is routed from the oil cooler top
left-front corner to the top front of the water
manifold. CH model chassis have an additional
vent line from the top of the water pump to the top
of the thermostat housing. This replaces the steel
line used on CH model chassis with the
removable bundle-type oil cooler. The de-
aeration line is made from 1/4-inch inside
diameter (1/2-inch outside diameter) silicone
heater hose, and is protected from rubbing and
chafing by length of convoluted tubing.
61
Figure 61 — Oil Cooler De-Aeration Line
1. De-Aeration Line
2. Convoluted Tubing
3. Oil Cooler
5_106_00.bk Page 54 Friday, August 4, 2000 11:17 AM
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