Raider 40 HP
SECTION 3
Owner’s Manual
Maintenance Requirements
52
•
Keep the bottle/tube in the bottom plug (or plug the hole with your finger) and re-install the TOP
plug. This will create a slight vacuum that will minimize the oil loss while you reinstall the bottom
plug.
•
Now, QUICKLY remove the bottle (or your finger) from the bottom hole and install the drain plug.
It is important to do this as quickly as possible to minimize the amount of oil loss. Even though
there is a slight vacuum, there will still be some loss of oil. Do not be concerned about losing
some oil, however, if you lose an excessive amount of oil you will need to go back and add
additional oil. Hand tighten both the lower and upper drain plugs and wipe off any oil on your
lower unit.
Inspect Oil
•
Oil emulsification. The presence of water in the gear oil will cause the oil
to look “milky”, this is an indicator that a shaft seal is going bad or the
O-rings for either the fill or drain plug.
•
Metal shavings. The presence of small “sand like” shavings are common
and consistent with normal wear. Should larger pieces or “chunks” with
a grey oil color be observed, indicates a more significant problem.
Consider a lower unit swap or depot level service.
Check Oil Level
•
Remove the top oil plug, insert a small piece of wire straight into the top hole approximately 1
inch and withdraw the wire. If oil is on the wire the oil level is correct, if not the unit must be
refilled to the correct level.
•
To add ("top-off") oil install the top plug again, remove the bottom plug and put your oil bottle
into the hole. Remove the top plug to release the vacuum and add the necessary amount of oil.
Reinstall the top plug, then quickly reinstall the bottom plug. Check the oil level once again as
described above.
Running your outboard without completely filling the lower unit with oil to the proper level will
cause severe damage to your outboard. See the comments at the end of this guide on how to check
for the proper oil level in your lower unit.
Summary of Contents for Raider 40 HP
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