Friday, June 20, 2008

Restoring an old fan

Project: Restoring a box-type fan to near-original status
Asset: Hunter 20" box fan
Model: Unknown
Manufactured: 1968 (approximately)
Specifications: 20", 110v motor ungrounded, three-speed, four-position push-button toggle switch, single-piece plastic disk with five plastic blades, metal casing brown in color, chrome-steel protective grids front and rear of the box.
Status: Inactive for approximately six years.

I have been reading up on air-raid sirens and their restoration. I am tooting the horn about how Houston County is spending too much money on a system that can play chimes and pre-recorded messages. I would rather they use the motorized fan-type sirens which use a 220-volt motor to force air through a stator to make their feared whine.

That, and having cats enduring a warm porch, let me to fix the Hunter fan. The Hunter was my favorite fan when I was little. It stayed in my room when I was asleep and soothed me with its cold fingers and soft whirr. The fan had a white plastic handle, an 18-gauge cable, and a button to push for controlling its three speeds.

I wanted to yank it out of the shop where it lay dormant for years and cool the kitty cats under the screened porch.. Dad put it in a window of the shop for ventilation but he became too ill to stay out in the heat very long. I took down the fan and found it needed cleaning. It bore the remnants of mice, insects, and dust from various workshop projects.

So an intended cleaning led to a full disassembly. After taking the Hunter apart I decided to wait until I cleaned, painted and rewired the thing before hanging it in the cats' porch. As with the tractor and the riding lawn mower I didn't take pictures of the fan as it was prior to my efforts. Surely there are snapshots with it in the background but I can't find them as of yet. I did take a picture of it after I cleaned and partially sanded the top.



I did a coarse and fine sanding before priming the metal shell with a cheap red oxide primer. I had bought a can of Krylon medium-gray paint from Wal-Mart. I wasn't thrilled with the look of it even after two coats. I decided to go with the closest tint to the brown-gray the Hunter bore. Lowe's had Rust-O-Leum Anodized Bronze. It was a nearly perfect match.

For a really decent paint job I would say aerosol paint is a sham and a racket. Never do you get anything but specks and stripes. I was still relatively content. I gave the fan shell two coats of Anodized Bronze and a clear-coat of cheap Wal-Mart spray paint. Tonight I smoothed the coat with a rubdown of automotive polishing paste left over from years ago.

I took the Hunter's motor out and put in on a workbench. I used electrical contact cleaner to remove the crud and ensure adequate conductivity. The switch splices were in a plastic bag clipped on with a metal clip. Today fans have a plastic box for the wire junctions. I have a project box from Radio Shack for enclosing the wires. The lead from the switch to the outlet will get a new double-insulated 18AWG wire.

I will give the fan new grommets and fasten the motor to the shell using the original screws and faucet washers. The cord will be a snug fit against the frame and motor. I took the cord and bench-tested the cleaned and lubricated fan motor. It whirred right along. The blades were a pain to clean even with a Clorox solution and Purple Power cleaner. I am left with only bathtub cleaner to bare the gunk off the plastic tines. The Hunter gets the plastic handle back and with new screws.

Now if I can find out how to get the grilles restored. I have automotive chrome paint but it looked like I just painted over the rust. The grilles must be resanded and bared with steel wool.

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