63
Oil cooler, reverse gear
Z. Zinc anode
Cleaning oil cooler, reverse gear
Close sea cock before working on cooling
system.
1. Open the drain cock on the oil cooler. Remove
the cooling water pipes to and from the oil cooler.
2. Remove both end covers and push out the insert.
(The insert can only be pulled out to the left as it
has a flange on this side.)
3. Wash the insert in (e.g.) white spirit and blow it
dry using compressed air (or let it stand and dry).
Clean the tubes internally and the ends of the
core using suitable brushes. Clean the housing
too.
4. Reinstall all parts in the opposite order. Use new
sealing rings.
5. Close the drain cock and open the sea cock.
Start the engine and check for leaks.
Checking/replacing zinc anode(s)
Close sea cock before working on cooling
system.
1. Open the drain cock on the reverse gear’s oil
cooler.
2. Unscrew the zinc anode (Z) on the oil cooler’s
right end cover.
3. TAMD63, TAMD73 and TAMD74: Unscrew the
zinc anode in the heat exchanger’s front end
cover, or in the charge air cooler’s rear end
cover.
Note. The seawater in the heat exchanger or
charge air cooler should be drained at the same
time.
TAMD63, TAMD73 and TAMD74: Zinc anode in
CAC rear end cover
4. Replace the anode if more than 50% of it has
been consumed. Otherwise clean the anode with
an emery cloth to remove the oxide layer.
NOTE! Do not use a wire brush or other steel
tools when cleaning, as these may damage the
galvanic protection.
5. Install the zinc anode(s). Ensure that there is
good metallic contact between the anode and the
material.
6. Close the drain cock. Open the sea cock before
starting the engine. Check for leaks.
TAMD63, TAMD73 and TAMD74: Zinc anode in
heat exchanger’s front end cover
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