21 COOLING SYSTEM
To clean and to inspect21A-11
To clean
Caution: Do not clean the tube stack in a caustic
cleaning solution.
1 Thoroughly clean the intercooler body its flange
and the flange of the induction manifold with an
approved detergent solution.
Warning! Do not allow compressed air to contact
your skin, if compressed air enters your skin obtain
medical help immediately.
2 Soak the fins of the tube stack in an approved
detergent degreasing fluid. Allow the excess fluid to
drain off and dry the fins with low pressure
compressed air.
3 Flush the tube stack with clean coolant through
the outlet connection, in the opposite direction of
flow.
To inspect
1 Inspect the casing of the intercooler for cracks or
distortion, especially the flange faces which must
be flat to prevent leakage of air.
2 Inspect the tube stack for signs of coolant
leakage. Also inspect the tube stack for damage to
the fins, the hose connections, and for cracks. If
the tube stack is damaged or restricted it must be
renewed.
21A.28 Perkins Phaser/1000 Series, April 1995
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