Oil Cooler Flushing

OIL COOLER FLUSHING [AW6A-EL]

Caution:
^ Power flushing should be performed very carefully when removing the accumulated debris from the fluid baffle, otherwise the debris may not be removed or the problem may become even worse.

Note:
^ The contaminated cooler line (oil pipes and hoses) and auxiliary cooler (if equipped) must be flushed completely when the ATX is overhauled or replaced.
^ Performing back and reverse power flushing two times each does not work because debris or particles flow out from the feed pipe side of the ATX.




Recommended power-flushing manufacturer

Power Flushing
Repair procedure
1. Before power flushing, inspect the hoses/lines and clamps. Power flushing must begin with back flushing followed by forward flushing to quickly dislodge the restriction. If back flushing is not performed before forward flushing, the restriction could further reduce the ATF flow through the internal mesh type baffle of the cooler and flushing will not be effective or possible.

Inspecting oil lines & clamps
1. Be sure to inspect the lines (hoses/pipes) for cuts, crimps (pinched), cracks or any other damage before reusing them. If any problem exists, replace.

Caution:
^ Always use new clamps when replacing hoses.

Back flushing





1. Following the power flushing equipment manufacturer's instructions, connect the equipment so the flushing fluid flows in the opposite direction of normal fluid flow.
2. Flush oil cooler/lines until discharge fluid is clean.

Caution:
^ If the cooler can not be properly flushed using recommended equipment, send the radiator out for subcontractor cleaning or replace.

Forward flushing





1. Connect power flushing equipment so the flushing fluid flows in the direction of normal fluid flow.
2. Flush oil cooler/lines until discharge fluid is clean.