Tiger cat, front caster grease cap question

[Hydro556]

I'm wanting to grease the caster spindle bearings on my Tiger Cat and I see Scag recommends a tool to replace the caps.

Before I remove I I'm wondering if that's actually necessary to replace the caps?

Other option is drilling small hole in the cap so I can see when enough grease is added. But that would make me worry about contaminating the bearings eventually. Though I suppose some silicone would prevent.

 

[Luffydog]

No it’s not necessary you can do without it. Sometimes if you put too much grease in them it will start to push the caps up. Drill holes I wouldn’t it will allow water and other stuff in as you said.