Bearings lubrication

[hadzinak]

Can anybody indicate how it is possible to change the "oil" ( not sure about the correct word in english ) that lubricates the bearings and can be seen through the glass in the center of the wheel

[GoneBoatN]

There was a good post on oil bath seals at http://mastercraft.com/teamtalk/show...highlight=bath. It may be that your caps are screw-on or press-on depending upon the year of your trailer. Later models have the screw-on. There are other posts on this subject if you search for them.

[GoneBoatN]

Manuals for the trailers can be found at http://mastercraft.com/knowledge/owners_manuals/.

For instance, the manual for my trailer says -
"A regular check of the torque on the cap should also be performed. The proper torque should be 25-30 ft.-lbs."

As a side note, I notice there is a new trailer manual for 2011. The new manual says "trailer is equipped with a Trailer Buddy Axle
utilizing the VAULT bearing protector with specially formulated
Hybrid Oil™ lubricant. The VAULT combines the
benefits of oil and grease, lubricating and protecting the
wheel bearings in a sealed pressurized chamber impenetrable
by outside elements.
The system has a number of unique features not
found on conventional trailer axles. Every possible leak
point on the front and rear of the hub is sealed. The
slight (3-6 psi) pressure within the VAULT system generated
inside the hub chamber will not damage the inner
oil seals. The pressure inside the hub is needed
to keep water out of the hub chamber when the hub is
submerged underwater during launch and retrieval."

So looks like there is a new bearing lube system for 2011.

[hadzinak]

Thanks for the reply, the tutorial link in the thread you sent me is great.
I see in the pics that the lubricant level is all the way up in the oil bath, while mine has always been half way up

http://www.wakeworld.com/MB/Discus/m...tml?1180533730

Does anybody know how often do I need to change the oil?

[Table Rocker]

Originally Posted by hadzinak

Thanks for the reply, the tutorial link in the thread you sent me is great.
I see in the pics that the lubricant level is all the way up in the oil bath, while mine has always been half way up

http://www.wakeworld.com/MB/Discus/m...tml?1180533730

Does anybody know how often do I need to change the oil?

My understanding is you change it whenever you see signs of water intrusion (milky oil).