Thursday, December 31, 2009
Repairing a path light
When night falls, darkness renders Searock formidable and dangerous. For this reason we are equipped with path lighting to render the darkness penetrable to all.
Here is one of our helpers who needs help...
...more than just a change of bulbs, the socket has corroded(click photo for closeup). Note the fragment of mica (just below the removed wire connectors) that formed the cap to the old socket where the pins of the bulb plugged in.
You can see it better below by comparing the new socket (bottom) to the old:
In the preceeding photo, the old socket has already been removed from the bracket and the new one put in its place using those 2 small screws. Below, you can see the new socket on the bracket (at right) wire-nutted to the conductor wires and silicone has been squeezed into the nut ends to seal the connection from moisture.
Now the socket and bracket have been re-inserted into the housing, and it's ready to have a new bulb put in:
Let there be...
LIGHT!
Wednesday, December 30, 2009
Thursday, December 24, 2009
Friday, December 18, 2009
Rack and pinion skylights
The greenhouse skylights are operated automatically by means of a tube motor working off of temperature sensors and a computerized controller, rotating a steel shaft. A system of rack and pinion gears mounted on the shaft, which is attached to the rafters with pillow blocks, push or pull the skylights open or closed according to temperature settings in the controller.
The gears and blocks are fitted with zerc fittings to allow for grease to be pumped into the contact surfaces, to reduce friction and assure a smooth operation. This needs to be done once a year or so, because the grease gets old and dries out(obviously).
I decided to clean off that old hardened grease first, and oil the shaft, which is getting coated with rust.
(pillow block, before cleaning)
Here below are the cleaned and regreased racks & pinions in room 5:
When the skylights start making too much noise as they open or close, I can tell it's time to relubricate the gears and pillow blocks.
The pins at the bottom of the shaft are a safety feature to prevent the rack from exiting the pinion gear altogether, should the controller or the tube motor fail to stop rotation according to plan. Having seen what happens when things go wrong with rack & pinion gears, it gives me peace of mind and satisfaction to know these are operating smoothly.
Here's what the rack & pinions looked like in room 4 when I got up close:
And after cleaning and relubrication:
The view from up there:
Shaggy Mane
Wednesday, December 9, 2009
A cord of unseasoned oak
Tuesday, December 8, 2009
Sunset, December 7, 2009
Sunday, November 22, 2009
Quadruped caretakers
Abby (Absinthe):
This quartet.... 3 cats and a dog, are or have been on staff here, helping us in a variety of ways. Phoebe, Kitty Bumpkins and Abby, on rodent abatement duty, have done a fine job of getting the place under control. Abby brought her formidable skills to bear here for about a year, but has now moved on to greener pastures. Gideon is our vigilant sentry, announcing comings and goings, and keeping a friendly smile and bark for all guests.
Friday, November 6, 2009
Townsend's Warbler
Thursday, November 5, 2009
Closure on the fence repair episode
So, the wind had finished breaking off the base of three fence posts after some years of rot had weakened them.
Rather than remove the concrete, I just removed the rotted wood left embedded in it, leaving a post-shaped hole in a large, buried mass of concrete. The cavities were over 2 feet deep.
Rough redwood posts vary in their dimension, and the newer posts were slightly larger than the old, so I made adjustments accordingly. Once you start to slide the new post into the old hole, it has to fit right the first try. It gets wedged in quickly, and I treated each post with "copper-green" to retard rot and termites, so I wasn't going to be trimming these posts to fit after soaking them in poison.
The 2x4 rails are fitted into 2x4 holes notched into the posts. Here's how its done: layout the notch; score around it with a chisel; break out the top layer of wood with the chisel; plow out the rest with a drill and chainsaw...from both sides...
Here's a new post ready for the rail & fence sections to be re-fitted:
All finished:
Sunday, November 1, 2009
All saints
Sainthood is commonly thought to be earned, an award for the few high achievers who make perfect grades in difficult extra credit projects. For those who do think so, I commend the quote I've recently added to the bottom of this page. Happy All Saint's Day.