Airplane People
03-18-2011 | 09:43 PM
#21
Airking
Joined: Aug 2004
Posts: 452
Likes: 0
From: Stafford Va.
Come on guys. If it has a little visible ball in the top center. Its a grease zerk fitting. If it is hollow in top center, it is a bleeder port like your trailer or car brakes. I think. I have been wrong many times before. LOL
03-18-2011 | 10:06 PM
#23
Charter Member#203
Joined: Oct 2000
Posts: 21,289
Likes: 19,968
From: Ft.Myers, Fl/ Atlanta, Ga/ Worldwide
The actuator shown is a simple two way acuator the has a o-ring around the piston and it gets lubricated via the oil/Hydraulic fliud used in operating the device. It is a grease fitting for the bearing, that may have been there before under original design.
03-18-2011 | 10:46 PM
#24
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Joined: Sep 2006
Posts: 1,167
Likes: 60
From: toledo ohio
03-18-2011 | 11:37 PM
#25
Registered
Joined: Nov 2003
Posts: 946
Likes: 1
From: Clinton N.J.
I'm thinking it was a bleeder and somebody for some reason screwed a zerk fitting in it. Needed something to plug the hole to go boating for the afternoon and never got replaced. Possible? Not that I would ever do that. 
Doug
Doug
03-19-2011 | 12:50 AM
#26
Thread Starter
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Joined: Jan 2005
Posts: 3,570
Likes: 127
From: Pasadena, MD
Sorry but both of them are like that and this is a race boat so it wasn't like they didn't know they were going to take a ride at a certain time.
03-19-2011 | 01:26 AM
#27
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Joined: Dec 2005
Posts: 1,538
Likes: 1
From: Washington
Put a wrench on it already and end the missionary...
03-19-2011 | 07:37 AM
#29
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Joined: May 2009
Posts: 369
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From: St Louis, MO / Table Rock
Having been aviation for 22 years, worked on fixed wing and helos, both flight line and component repair, I have NEVER seen a actuator need grease on the top of the piston.
The actuator shown is a simple two way acuator the has a o-ring around the piston and it gets lubricated via the oil/Hydraulic fliud used in operating the device. It is a grease fitting for the bearing, that may have been there before under original design.
The actuator shown is a simple two way acuator the has a o-ring around the piston and it gets lubricated via the oil/Hydraulic fliud used in operating the device. It is a grease fitting for the bearing, that may have been there before under original design.
I have and work on mech and hyd punch presses that over 70 yrs old. The way the equipment was over built then to what it is now dont even compare to each other.
Last edited by capt2130; 03-19-2011 at 07:45 AM.
