Pumping grease through zerk

[Toyelectroman]

I have a 2017 yachtclub tandem axle pontoon trailer, but i am not too sure what type of hubs i have. I couldn't find any markings. It has a rubber cap and when i pry it off the hub is filled with grease and a grease zerk is in the middle. Do i just pump in new grease until new grease starts coming out? From googling some people say not to pump grease as i will blow out the seals

 

[GA_Boater]

If you have to pry the rubber cover off, the axles probably have the second type.

If the dust cover looks like this;



Over greasing cam blow the seal.

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If the dust cover looks like this;




Pump grease until only new grease comes out.

 

[Horigan]

Even with the second type, you want to jack the wheel up and rotate the wheel, while pumping slowly.

 

[Toyelectroman]

Yes i have the second type(not bearing buddies). Also when i pulled the dust cap off i saw that from the trailer factory they used red grease. I currently have marine blue grease. Do you think it would be an issue mixing grease?

 

[Scott Danforth]

the red is probably red and tacky

 

[JimS123]

I have the perfect solution...............call YachtClub and ask them. They should have given you an owners manual when you bought it. If not, they can email you a PDF or a hard copy. Good company.