20 or 40

[Matthew P]

29 minutes ago, N201MKTurbo said:

Yes, for the annual, you give it a few pumps of grease till it comes out the screw hole. This is done in the plane.

Same at the 100hr of the gear..100hr grease it, 200hr inspection it

[Fly Boomer]

1 hour ago, Shiroyuki said:

Why is the SB based on hours not cycles?

Most Mooney airplanes don't record gear cycles.

[Vance Harral]

7 hours ago, N201MKTurbo said:

Yes, for the annual, you give it a few pumps of grease till it comes out the screw hole. This is done in the plane.

Couple of caveats about this.

First, while the Duke's and ITT actuators are largely the same, one difference with the later ITT actuators is that they lack a Zerk fitting to add grease in situ.  Thus, you can't "give it a few pumps of grease till it comes out the screw hole, while in the plane", at least not the way those with the Duke's actuators can.  You can remove two of the screws and pump grease into one hole with a cone tip until it comes out the other.  But I've never had much luck with this, as access is awkward and it's difficult to get the cont tip to actually seal well enough against screw hole #1 to pump through to screw hole #2.  I've gotten to the point where I simply don't try to lube the gear cavity without removing the actuator from the airplane and disassembling it.  I've done this enough times now that it's not a particularly big hassle.

The other caveat is that if you use this technique of pushing grease through one hole (zerk or screw) until it comes out another, you've got to be sure to take enough grease out of the last hole before you reinstall the bolt, to ensure the bolt doesn't hydro-lock against the grease in the cavity, and strip the threads of the actuator.  You can guess how I know this.

[Pinecone]

On 12/27/2024 at 11:52 AM, N201MKTurbo said:

I have wondered the same thing. 
 

Gears wear by cycles, grease dries out by time. Choose your poison.

Because few people log cycles in the aircraft logs.   With only one pilot, it would be easy from their log book, but multiple ones a bit more difficult.